1589 lines
49 KiB
Go
1589 lines
49 KiB
Go
// Copyright 2018 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package packages_test
|
|
|
|
import (
|
|
"bytes"
|
|
"encoding/json"
|
|
"fmt"
|
|
"go/ast"
|
|
constantpkg "go/constant"
|
|
"go/parser"
|
|
"go/token"
|
|
"go/types"
|
|
"os"
|
|
"path/filepath"
|
|
"reflect"
|
|
"runtime"
|
|
"sort"
|
|
"strings"
|
|
"testing"
|
|
|
|
"golang.org/x/tools/go/packages"
|
|
"golang.org/x/tools/go/packages/packagestest"
|
|
)
|
|
|
|
// TODO(matloob): remove this once Go 1.12 is released as we will end support
|
|
// for versions of go list before Go 1.10.4.
|
|
var usesOldGolist = false
|
|
|
|
// TODO(adonovan): more test cases to write:
|
|
//
|
|
// - When the tests fail, make them print a 'cd & load' command
|
|
// that will allow the maintainer to interact with the failing scenario.
|
|
// - errors in go-list metadata
|
|
// - a foo.test package that cannot be built for some reason (e.g.
|
|
// import error) will result in a JSON blob with no name and a
|
|
// nonexistent testmain file in GoFiles. Test that we handle this
|
|
// gracefully.
|
|
// - test more Flags.
|
|
//
|
|
// LoadSyntax & LoadAllSyntax modes:
|
|
// - Fset may be user-supplied or not.
|
|
// - Packages.Info is correctly set.
|
|
// - typechecker configuration is honored
|
|
// - import cycles are gracefully handled in type checker.
|
|
// - test typechecking of generated test main and cgo.
|
|
|
|
// The zero-value of Config has LoadFiles mode.
|
|
func TestLoadZeroConfig(t *testing.T) {
|
|
initial, err := packages.Load(nil, "hash")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if len(initial) != 1 {
|
|
t.Fatalf("got %s, want [hash]", initial)
|
|
}
|
|
hash := initial[0]
|
|
// Even though the hash package has imports,
|
|
// they are not reported.
|
|
got := fmt.Sprintf("name=%s srcs=%v imports=%v", hash.Name, srcs(hash), hash.Imports)
|
|
want := "name=hash srcs=[hash.go] imports=map[]"
|
|
if got != want {
|
|
t.Fatalf("got %s, want %s", got, want)
|
|
}
|
|
}
|
|
|
|
func TestLoadImportsGraph(t *testing.T) { packagestest.TestAll(t, testLoadImportsGraph) }
|
|
func testLoadImportsGraph(t *testing.T, exporter packagestest.Exporter) {
|
|
exported := packagestest.Export(t, exporter, []packagestest.Module{{
|
|
Name: "golang.org/fake",
|
|
Files: map[string]interface{}{
|
|
"a/a.go": `package a; const A = 1`,
|
|
"b/b.go": `package b; import ("golang.org/fake/a"; _ "errors"); var B = a.A`,
|
|
"c/c.go": `package c; import (_ "golang.org/fake/b"; _ "unsafe")`,
|
|
"c/c2.go": "// +build ignore\n\n" + `package c; import _ "fmt"`,
|
|
"subdir/d/d.go": `package d`,
|
|
"subdir/d/d_test.go": `package d; import _ "math/bits"`,
|
|
"subdir/d/x_test.go": `package d_test; import _ "golang.org/fake/subdir/d"`, // TODO(adonovan): test bad import here
|
|
"subdir/e/d.go": `package e`,
|
|
"e/e.go": `package main; import _ "golang.org/fake/b"`,
|
|
"e/e2.go": `package main; import _ "golang.org/fake/c"`,
|
|
"f/f.go": `package f`,
|
|
}}})
|
|
defer exported.Cleanup()
|
|
exported.Config.Mode = packages.LoadImports
|
|
initial, err := packages.Load(exported.Config, "golang.org/fake/c", "golang.org/fake/subdir/d", "golang.org/fake/e")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
// Check graph topology.
|
|
graph, all := importGraph(initial)
|
|
wantGraph := `
|
|
errors
|
|
golang.org/fake/a
|
|
golang.org/fake/b
|
|
* golang.org/fake/c
|
|
* golang.org/fake/e
|
|
* golang.org/fake/subdir/d
|
|
unsafe
|
|
golang.org/fake/b -> errors
|
|
golang.org/fake/b -> golang.org/fake/a
|
|
golang.org/fake/c -> golang.org/fake/b
|
|
golang.org/fake/c -> unsafe
|
|
golang.org/fake/e -> golang.org/fake/b
|
|
golang.org/fake/e -> golang.org/fake/c
|
|
`[1:]
|
|
|
|
if graph != wantGraph {
|
|
t.Errorf("wrong import graph: got <<%s>>, want <<%s>>", graph, wantGraph)
|
|
}
|
|
|
|
exported.Config.Tests = true
|
|
initial, err = packages.Load(exported.Config, "golang.org/fake/c", "golang.org/fake/subdir/d", "golang.org/fake/e")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
// Check graph topology.
|
|
graph, all = importGraph(initial)
|
|
wantGraph = `
|
|
errors
|
|
golang.org/fake/a
|
|
golang.org/fake/b
|
|
* golang.org/fake/c
|
|
* golang.org/fake/e
|
|
* golang.org/fake/subdir/d
|
|
* golang.org/fake/subdir/d [golang.org/fake/subdir/d.test]
|
|
* golang.org/fake/subdir/d.test
|
|
* golang.org/fake/subdir/d_test [golang.org/fake/subdir/d.test]
|
|
math/bits
|
|
unsafe
|
|
golang.org/fake/b -> errors
|
|
golang.org/fake/b -> golang.org/fake/a
|
|
golang.org/fake/c -> golang.org/fake/b
|
|
golang.org/fake/c -> unsafe
|
|
golang.org/fake/e -> golang.org/fake/b
|
|
golang.org/fake/e -> golang.org/fake/c
|
|
golang.org/fake/subdir/d [golang.org/fake/subdir/d.test] -> math/bits
|
|
golang.org/fake/subdir/d.test -> golang.org/fake/subdir/d [golang.org/fake/subdir/d.test]
|
|
golang.org/fake/subdir/d.test -> golang.org/fake/subdir/d_test [golang.org/fake/subdir/d.test]
|
|
golang.org/fake/subdir/d.test -> os (pruned)
|
|
golang.org/fake/subdir/d.test -> testing (pruned)
|
|
golang.org/fake/subdir/d.test -> testing/internal/testdeps (pruned)
|
|
golang.org/fake/subdir/d_test [golang.org/fake/subdir/d.test] -> golang.org/fake/subdir/d [golang.org/fake/subdir/d.test]
|
|
`[1:]
|
|
|
|
if graph != wantGraph {
|
|
t.Errorf("wrong import graph: got <<%s>>, want <<%s>>", graph, wantGraph)
|
|
}
|
|
|
|
// Check node information: kind, name, srcs.
|
|
for _, test := range []struct {
|
|
id string
|
|
wantName string
|
|
wantKind string
|
|
wantSrcs string
|
|
}{
|
|
{"golang.org/fake/a", "a", "package", "a.go"},
|
|
{"golang.org/fake/b", "b", "package", "b.go"},
|
|
{"golang.org/fake/c", "c", "package", "c.go"}, // c2.go is ignored
|
|
{"golang.org/fake/e", "main", "command", "e.go e2.go"},
|
|
{"errors", "errors", "package", "errors.go"},
|
|
{"golang.org/fake/subdir/d", "d", "package", "d.go"},
|
|
{"golang.org/fake/subdir/d.test", "main", "command", "0.go"},
|
|
{"unsafe", "unsafe", "package", ""},
|
|
} {
|
|
p, ok := all[test.id]
|
|
if !ok {
|
|
t.Errorf("no package %s", test.id)
|
|
continue
|
|
}
|
|
if p.Name != test.wantName {
|
|
t.Errorf("%s.Name = %q, want %q", test.id, p.Name, test.wantName)
|
|
}
|
|
|
|
// kind
|
|
var kind string
|
|
if p.Name == "main" {
|
|
kind += "command"
|
|
} else {
|
|
kind += "package"
|
|
}
|
|
if kind != test.wantKind {
|
|
t.Errorf("%s.Kind = %q, want %q", test.id, kind, test.wantKind)
|
|
}
|
|
|
|
if srcs := strings.Join(srcs(p), " "); srcs != test.wantSrcs {
|
|
t.Errorf("%s.Srcs = [%s], want [%s]", test.id, srcs, test.wantSrcs)
|
|
}
|
|
}
|
|
|
|
// Test an ad-hoc package, analogous to "go run hello.go".
|
|
if initial, err := packages.Load(exported.Config, exported.File("golang.org/fake", "c/c.go")); len(initial) == 0 {
|
|
t.Errorf("failed to obtain metadata for ad-hoc package: %s", err)
|
|
} else {
|
|
got := fmt.Sprintf("%s %s", initial[0].ID, srcs(initial[0]))
|
|
if want := "command-line-arguments [c.go]"; got != want {
|
|
t.Errorf("oops: got %s, want %s", got, want)
|
|
}
|
|
}
|
|
|
|
// Wildcards
|
|
// See StdlibTest for effective test of "std" wildcard.
|
|
// TODO(adonovan): test "all" returns everything in the current module.
|
|
{
|
|
// "..." (subdirectory)
|
|
initial, err = packages.Load(exported.Config, "golang.org/fake/subdir/...")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
graph, all = importGraph(initial)
|
|
wantGraph = `
|
|
* golang.org/fake/subdir/d
|
|
* golang.org/fake/subdir/d [golang.org/fake/subdir/d.test]
|
|
* golang.org/fake/subdir/d.test
|
|
* golang.org/fake/subdir/d_test [golang.org/fake/subdir/d.test]
|
|
* golang.org/fake/subdir/e
|
|
math/bits
|
|
golang.org/fake/subdir/d [golang.org/fake/subdir/d.test] -> math/bits
|
|
golang.org/fake/subdir/d.test -> golang.org/fake/subdir/d [golang.org/fake/subdir/d.test]
|
|
golang.org/fake/subdir/d.test -> golang.org/fake/subdir/d_test [golang.org/fake/subdir/d.test]
|
|
golang.org/fake/subdir/d.test -> os (pruned)
|
|
golang.org/fake/subdir/d.test -> testing (pruned)
|
|
golang.org/fake/subdir/d.test -> testing/internal/testdeps (pruned)
|
|
golang.org/fake/subdir/d_test [golang.org/fake/subdir/d.test] -> golang.org/fake/subdir/d [golang.org/fake/subdir/d.test]
|
|
`[1:]
|
|
|
|
if graph != wantGraph {
|
|
t.Errorf("wrong import graph: got <<%s>>, want <<%s>>", graph, wantGraph)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestLoadImportsTestVariants(t *testing.T) { packagestest.TestAll(t, testLoadImportsTestVariants) }
|
|
func testLoadImportsTestVariants(t *testing.T, exporter packagestest.Exporter) {
|
|
exported := packagestest.Export(t, exporter, []packagestest.Module{{
|
|
Name: "golang.org/fake",
|
|
Files: map[string]interface{}{
|
|
"a/a.go": `package a; import _ "golang.org/fake/b"`,
|
|
"b/b.go": `package b`,
|
|
"b/b_test.go": `package b`,
|
|
"b/bx_test.go": `package b_test; import _ "golang.org/fake/a"`,
|
|
}}})
|
|
defer exported.Cleanup()
|
|
exported.Config.Mode = packages.LoadImports
|
|
exported.Config.Tests = true
|
|
|
|
initial, err := packages.Load(exported.Config, "golang.org/fake/a", "golang.org/fake/b")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
// Check graph topology.
|
|
graph, _ := importGraph(initial)
|
|
wantGraph := `
|
|
* golang.org/fake/a
|
|
golang.org/fake/a [golang.org/fake/b.test]
|
|
* golang.org/fake/b
|
|
* golang.org/fake/b [golang.org/fake/b.test]
|
|
* golang.org/fake/b.test
|
|
* golang.org/fake/b_test [golang.org/fake/b.test]
|
|
golang.org/fake/a -> golang.org/fake/b
|
|
golang.org/fake/a [golang.org/fake/b.test] -> golang.org/fake/b [golang.org/fake/b.test]
|
|
golang.org/fake/b.test -> golang.org/fake/b [golang.org/fake/b.test]
|
|
golang.org/fake/b.test -> golang.org/fake/b_test [golang.org/fake/b.test]
|
|
golang.org/fake/b.test -> os (pruned)
|
|
golang.org/fake/b.test -> testing (pruned)
|
|
golang.org/fake/b.test -> testing/internal/testdeps (pruned)
|
|
golang.org/fake/b_test [golang.org/fake/b.test] -> golang.org/fake/a [golang.org/fake/b.test]
|
|
`[1:]
|
|
|
|
if graph != wantGraph {
|
|
t.Errorf("wrong import graph: got <<%s>>, want <<%s>>", graph, wantGraph)
|
|
}
|
|
}
|
|
|
|
func TestLoadAbsolutePath(t *testing.T) {
|
|
exported := packagestest.Export(t, packagestest.GOPATH, []packagestest.Module{{
|
|
Name: "golang.org/gopatha",
|
|
Files: map[string]interface{}{
|
|
"a/a.go": `package a`,
|
|
}}, {
|
|
Name: "golang.org/gopathb",
|
|
Files: map[string]interface{}{
|
|
"b/b.go": `package b`,
|
|
}}})
|
|
defer exported.Cleanup()
|
|
|
|
initial, err := packages.Load(exported.Config, filepath.Dir(exported.File("golang.org/gopatha", "a/a.go")), filepath.Dir(exported.File("golang.org/gopathb", "b/b.go")))
|
|
if err != nil {
|
|
t.Fatalf("failed to load imports: %v", err)
|
|
}
|
|
|
|
got := []string{}
|
|
for _, p := range initial {
|
|
got = append(got, p.ID)
|
|
}
|
|
if !reflect.DeepEqual(got, []string{"golang.org/gopatha/a", "golang.org/gopathb/b"}) {
|
|
t.Fatalf("initial packages loaded: got [%s], want [a b]", got)
|
|
}
|
|
}
|
|
|
|
func TestVendorImports(t *testing.T) {
|
|
exported := packagestest.Export(t, packagestest.GOPATH, []packagestest.Module{{
|
|
Name: "golang.org/fake",
|
|
Files: map[string]interface{}{
|
|
"a/a.go": `package a; import _ "b"; import _ "golang.org/fake/c";`,
|
|
"a/vendor/b/b.go": `package b; import _ "golang.org/fake/c"`,
|
|
"c/c.go": `package c; import _ "b"`,
|
|
"c/vendor/b/b.go": `package b`,
|
|
}}})
|
|
defer exported.Cleanup()
|
|
exported.Config.Mode = packages.LoadImports
|
|
initial, err := packages.Load(exported.Config, "golang.org/fake/a", "golang.org/fake/c")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
graph, all := importGraph(initial)
|
|
wantGraph := `
|
|
* golang.org/fake/a
|
|
golang.org/fake/a/vendor/b
|
|
* golang.org/fake/c
|
|
golang.org/fake/c/vendor/b
|
|
golang.org/fake/a -> golang.org/fake/a/vendor/b
|
|
golang.org/fake/a -> golang.org/fake/c
|
|
golang.org/fake/a/vendor/b -> golang.org/fake/c
|
|
golang.org/fake/c -> golang.org/fake/c/vendor/b
|
|
`[1:]
|
|
if graph != wantGraph {
|
|
t.Errorf("wrong import graph: got <<%s>>, want <<%s>>", graph, wantGraph)
|
|
}
|
|
|
|
for _, test := range []struct {
|
|
pattern string
|
|
wantImports string
|
|
}{
|
|
{"golang.org/fake/a", "b:golang.org/fake/a/vendor/b golang.org/fake/c:golang.org/fake/c"},
|
|
{"golang.org/fake/c", "b:golang.org/fake/c/vendor/b"},
|
|
{"golang.org/fake/a/vendor/b", "golang.org/fake/c:golang.org/fake/c"},
|
|
{"golang.org/fake/c/vendor/b", ""},
|
|
} {
|
|
// Test the import paths.
|
|
pkg := all[test.pattern]
|
|
if imports := strings.Join(imports(pkg), " "); imports != test.wantImports {
|
|
t.Errorf("package %q: got %s, want %s", test.pattern, imports, test.wantImports)
|
|
}
|
|
}
|
|
}
|
|
|
|
func imports(p *packages.Package) []string {
|
|
if p == nil {
|
|
return nil
|
|
}
|
|
keys := make([]string, 0, len(p.Imports))
|
|
for k, v := range p.Imports {
|
|
keys = append(keys, fmt.Sprintf("%s:%s", k, v.ID))
|
|
}
|
|
sort.Strings(keys)
|
|
return keys
|
|
}
|
|
|
|
func TestConfigDir(t *testing.T) { packagestest.TestAll(t, testConfigDir) }
|
|
func testConfigDir(t *testing.T, exporter packagestest.Exporter) {
|
|
exported := packagestest.Export(t, exporter, []packagestest.Module{{
|
|
Name: "golang.org/fake",
|
|
Files: map[string]interface{}{
|
|
"a/a.go": `package a; const Name = "a" `,
|
|
"a/b/b.go": `package b; const Name = "a/b"`,
|
|
"b/b.go": `package b; const Name = "b"`,
|
|
}}})
|
|
defer exported.Cleanup()
|
|
aDir := filepath.Dir(exported.File("golang.org/fake", "a/a.go"))
|
|
bDir := filepath.Dir(exported.File("golang.org/fake", "b/b.go"))
|
|
baseDir := filepath.Dir(aDir)
|
|
|
|
for _, test := range []struct {
|
|
dir string
|
|
pattern string
|
|
want string // value of Name constant
|
|
fails bool
|
|
}{
|
|
{dir: bDir, pattern: "golang.org/fake/a", want: `"a"`},
|
|
{dir: bDir, pattern: "golang.org/fake/b", want: `"b"`},
|
|
{dir: bDir, pattern: "./a", fails: true},
|
|
{dir: bDir, pattern: "./b", fails: true},
|
|
{dir: baseDir, pattern: "golang.org/fake/a", want: `"a"`},
|
|
{dir: baseDir, pattern: "golang.org/fake/b", want: `"b"`},
|
|
{dir: baseDir, pattern: "./a", want: `"a"`},
|
|
{dir: baseDir, pattern: "./b", want: `"b"`},
|
|
{dir: aDir, pattern: "golang.org/fake/a", want: `"a"`},
|
|
{dir: aDir, pattern: "golang.org/fake/b", want: `"b"`},
|
|
{dir: aDir, pattern: "./a", fails: true},
|
|
{dir: aDir, pattern: "./b", want: `"a/b"`},
|
|
} {
|
|
exported.Config.Mode = packages.LoadSyntax // Use LoadSyntax to ensure that files can be opened.
|
|
exported.Config.Dir = test.dir
|
|
initial, err := packages.Load(exported.Config, test.pattern)
|
|
var got string
|
|
fails := false
|
|
if err != nil {
|
|
fails = true
|
|
} else if len(initial) > 0 {
|
|
if len(initial[0].Errors) > 0 {
|
|
fails = true
|
|
} else if c := constant(initial[0], "Name"); c != nil {
|
|
got = c.Val().String()
|
|
}
|
|
}
|
|
if got != test.want {
|
|
t.Errorf("dir %q, pattern %q: got %s, want %s",
|
|
test.dir, test.pattern, got, test.want)
|
|
}
|
|
if fails != test.fails {
|
|
// TODO: remove when go#28023 is fixed
|
|
if test.fails && strings.HasPrefix(test.pattern, "./") && exporter == packagestest.Modules {
|
|
// Currently go list in module mode does not handle missing directories correctly.
|
|
continue
|
|
}
|
|
t.Errorf("dir %q, pattern %q: error %v, want %v",
|
|
test.dir, test.pattern, fails, test.fails)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestConfigFlags(t *testing.T) { packagestest.TestAll(t, testConfigFlags) }
|
|
func testConfigFlags(t *testing.T, exporter packagestest.Exporter) {
|
|
// Test satisfying +build line tags, with -tags flag.
|
|
exported := packagestest.Export(t, exporter, []packagestest.Module{{
|
|
Name: "golang.org/fake",
|
|
Files: map[string]interface{}{
|
|
// package a
|
|
"a/a.go": `package a; import _ "golang.org/fake/a/b"`,
|
|
"a/b.go": `// +build tag
|
|
|
|
package a`,
|
|
"a/c.go": `// +build tag tag2
|
|
|
|
package a`,
|
|
"a/d.go": `// +build tag,tag2
|
|
|
|
package a`,
|
|
// package a/b
|
|
"a/b/a.go": `package b`,
|
|
"a/b/b.go": `// +build tag
|
|
|
|
package b`,
|
|
}}})
|
|
defer exported.Cleanup()
|
|
|
|
for _, test := range []struct {
|
|
pattern string
|
|
tags []string
|
|
wantSrcs string
|
|
wantImportSrcs string
|
|
}{
|
|
{`golang.org/fake/a`, []string{}, "a.go", "a.go"},
|
|
{`golang.org/fake/a`, []string{`-tags=tag`}, "a.go b.go c.go", "a.go b.go"},
|
|
{`golang.org/fake/a`, []string{`-tags=tag2`}, "a.go c.go", "a.go"},
|
|
{`golang.org/fake/a`, []string{`-tags=tag tag2`}, "a.go b.go c.go d.go", "a.go b.go"},
|
|
} {
|
|
exported.Config.Mode = packages.LoadImports
|
|
exported.Config.BuildFlags = test.tags
|
|
|
|
initial, err := packages.Load(exported.Config, test.pattern)
|
|
if err != nil {
|
|
t.Error(err)
|
|
continue
|
|
}
|
|
if len(initial) != 1 {
|
|
t.Errorf("test tags %v: pattern %s, expected 1 package, got %d packages.", test.tags, test.pattern, len(initial))
|
|
continue
|
|
}
|
|
pkg := initial[0]
|
|
if srcs := strings.Join(srcs(pkg), " "); srcs != test.wantSrcs {
|
|
t.Errorf("test tags %v: srcs of package %s = [%s], want [%s]", test.tags, test.pattern, srcs, test.wantSrcs)
|
|
}
|
|
for path, ipkg := range pkg.Imports {
|
|
if srcs := strings.Join(srcs(ipkg), " "); srcs != test.wantImportSrcs {
|
|
t.Errorf("build tags %v: srcs of imported package %s = [%s], want [%s]", test.tags, path, srcs, test.wantImportSrcs)
|
|
}
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
func TestLoadTypes(t *testing.T) { packagestest.TestAll(t, testLoadTypes) }
|
|
func testLoadTypes(t *testing.T, exporter packagestest.Exporter) {
|
|
// In LoadTypes and LoadSyntax modes, the compiler will
|
|
// fail to generate an export data file for c, because it has
|
|
// a type error. The loader should fall back loading a and c
|
|
// from source, but use the export data for b.
|
|
|
|
exported := packagestest.Export(t, exporter, []packagestest.Module{{
|
|
Name: "golang.org/fake",
|
|
Files: map[string]interface{}{
|
|
"a/a.go": `package a; import "golang.org/fake/b"; import "golang.org/fake/c"; const A = "a" + b.B + c.C`,
|
|
"b/b.go": `package b; const B = "b"`,
|
|
"c/c.go": `package c; const C = "c" + 1`,
|
|
}}})
|
|
defer exported.Cleanup()
|
|
|
|
exported.Config.Mode = packages.LoadTypes
|
|
initial, err := packages.Load(exported.Config, "golang.org/fake/a")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
graph, all := importGraph(initial)
|
|
wantGraph := `
|
|
* golang.org/fake/a
|
|
golang.org/fake/b
|
|
golang.org/fake/c
|
|
golang.org/fake/a -> golang.org/fake/b
|
|
golang.org/fake/a -> golang.org/fake/c
|
|
`[1:]
|
|
if graph != wantGraph {
|
|
t.Errorf("wrong import graph: got <<%s>>, want <<%s>>", graph, wantGraph)
|
|
}
|
|
|
|
for _, test := range []struct {
|
|
id string
|
|
wantSyntax bool
|
|
}{
|
|
{"golang.org/fake/a", true}, // need src, no export data for c
|
|
{"golang.org/fake/b", false}, // use export data
|
|
{"golang.org/fake/c", true}, // need src, no export data for c
|
|
} {
|
|
if usesOldGolist && !test.wantSyntax {
|
|
// legacy go list always upgrades to LoadAllSyntax, syntax will be filled in.
|
|
// still check that types information is complete.
|
|
test.wantSyntax = true
|
|
}
|
|
p := all[test.id]
|
|
if p == nil {
|
|
t.Errorf("missing package: %s", test.id)
|
|
continue
|
|
}
|
|
if p.Types == nil {
|
|
t.Errorf("missing types.Package for %s", p)
|
|
continue
|
|
} else if !p.Types.Complete() {
|
|
t.Errorf("incomplete types.Package for %s", p)
|
|
}
|
|
if (p.Syntax != nil) != test.wantSyntax {
|
|
if test.wantSyntax {
|
|
t.Errorf("missing ast.Files for %s", p)
|
|
} else {
|
|
t.Errorf("unexpected ast.Files for for %s", p)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestLoadSyntaxOK(t *testing.T) { packagestest.TestAll(t, testLoadSyntaxOK) }
|
|
func testLoadSyntaxOK(t *testing.T, exporter packagestest.Exporter) {
|
|
exported := packagestest.Export(t, exporter, []packagestest.Module{{
|
|
Name: "golang.org/fake",
|
|
Files: map[string]interface{}{
|
|
"a/a.go": `package a; import "golang.org/fake/b"; const A = "a" + b.B`,
|
|
"b/b.go": `package b; import "golang.org/fake/c"; const B = "b" + c.C`,
|
|
"c/c.go": `package c; import "golang.org/fake/d"; const C = "c" + d.D`,
|
|
"d/d.go": `package d; import "golang.org/fake/e"; const D = "d" + e.E`,
|
|
"e/e.go": `package e; import "golang.org/fake/f"; const E = "e" + f.F`,
|
|
"f/f.go": `package f; const F = "f"`,
|
|
}}})
|
|
defer exported.Cleanup()
|
|
|
|
exported.Config.Mode = packages.LoadSyntax
|
|
initial, err := packages.Load(exported.Config, "golang.org/fake/a", "golang.org/fake/c")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
graph, all := importGraph(initial)
|
|
wantGraph := `
|
|
* golang.org/fake/a
|
|
golang.org/fake/b
|
|
* golang.org/fake/c
|
|
golang.org/fake/d
|
|
golang.org/fake/e
|
|
golang.org/fake/f
|
|
golang.org/fake/a -> golang.org/fake/b
|
|
golang.org/fake/b -> golang.org/fake/c
|
|
golang.org/fake/c -> golang.org/fake/d
|
|
golang.org/fake/d -> golang.org/fake/e
|
|
golang.org/fake/e -> golang.org/fake/f
|
|
`[1:]
|
|
if graph != wantGraph {
|
|
t.Errorf("wrong import graph: got <<%s>>, want <<%s>>", graph, wantGraph)
|
|
}
|
|
|
|
for _, test := range []struct {
|
|
id string
|
|
wantSyntax bool
|
|
wantComplete bool
|
|
}{
|
|
{"golang.org/fake/a", true, true}, // source package
|
|
{"golang.org/fake/b", true, true}, // source package
|
|
{"golang.org/fake/c", true, true}, // source package
|
|
{"golang.org/fake/d", false, true}, // export data package
|
|
{"golang.org/fake/e", false, false}, // export data package
|
|
{"golang.org/fake/f", false, false}, // export data package
|
|
} {
|
|
// TODO(matloob): The legacy go list based support loads
|
|
// everything from source because it doesn't do a build
|
|
// and the .a files don't exist.
|
|
// Can we simulate its existence?
|
|
if usesOldGolist {
|
|
test.wantComplete = true
|
|
test.wantSyntax = true
|
|
}
|
|
p := all[test.id]
|
|
if p == nil {
|
|
t.Errorf("missing package: %s", test.id)
|
|
continue
|
|
}
|
|
if p.Types == nil {
|
|
t.Errorf("missing types.Package for %s", p)
|
|
continue
|
|
} else if p.Types.Complete() != test.wantComplete {
|
|
if test.wantComplete {
|
|
t.Errorf("incomplete types.Package for %s", p)
|
|
} else {
|
|
t.Errorf("unexpected complete types.Package for %s", p)
|
|
}
|
|
}
|
|
if (p.Syntax != nil) != test.wantSyntax {
|
|
if test.wantSyntax {
|
|
t.Errorf("missing ast.Files for %s", p)
|
|
} else {
|
|
t.Errorf("unexpected ast.Files for for %s", p)
|
|
}
|
|
}
|
|
if p.Errors != nil {
|
|
t.Errorf("errors in package: %s: %s", p, p.Errors)
|
|
}
|
|
}
|
|
|
|
// Check value of constant.
|
|
aA := constant(all["golang.org/fake/a"], "A")
|
|
if aA == nil {
|
|
t.Fatalf("a.A: got nil")
|
|
}
|
|
if got, want := fmt.Sprintf("%v %v", aA, aA.Val()), `const golang.org/fake/a.A untyped string "abcdef"`; got != want {
|
|
t.Errorf("a.A: got %s, want %s", got, want)
|
|
}
|
|
}
|
|
|
|
func TestLoadDiamondTypes(t *testing.T) { packagestest.TestAll(t, testLoadDiamondTypes) }
|
|
func testLoadDiamondTypes(t *testing.T, exporter packagestest.Exporter) {
|
|
// We make a diamond dependency and check the type d.D is the same through both paths
|
|
exported := packagestest.Export(t, exporter, []packagestest.Module{{
|
|
Name: "golang.org/fake",
|
|
Files: map[string]interface{}{
|
|
"a/a.go": `package a; import ("golang.org/fake/b"; "golang.org/fake/c"); var _ = b.B == c.C`,
|
|
"b/b.go": `package b; import "golang.org/fake/d"; var B d.D`,
|
|
"c/c.go": `package c; import "golang.org/fake/d"; var C d.D`,
|
|
"d/d.go": `package d; type D int`,
|
|
}}})
|
|
defer exported.Cleanup()
|
|
|
|
exported.Config.Mode = packages.LoadSyntax
|
|
initial, err := packages.Load(exported.Config, "golang.org/fake/a")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
packages.Visit(initial, nil, func(pkg *packages.Package) {
|
|
for _, err := range pkg.Errors {
|
|
t.Errorf("package %s: %v", pkg.ID, err)
|
|
}
|
|
})
|
|
|
|
graph, _ := importGraph(initial)
|
|
wantGraph := `
|
|
* golang.org/fake/a
|
|
golang.org/fake/b
|
|
golang.org/fake/c
|
|
golang.org/fake/d
|
|
golang.org/fake/a -> golang.org/fake/b
|
|
golang.org/fake/a -> golang.org/fake/c
|
|
golang.org/fake/b -> golang.org/fake/d
|
|
golang.org/fake/c -> golang.org/fake/d
|
|
`[1:]
|
|
if graph != wantGraph {
|
|
t.Errorf("wrong import graph: got <<%s>>, want <<%s>>", graph, wantGraph)
|
|
}
|
|
}
|
|
|
|
func TestLoadSyntaxError(t *testing.T) { packagestest.TestAll(t, testLoadSyntaxError) }
|
|
func testLoadSyntaxError(t *testing.T, exporter packagestest.Exporter) {
|
|
// A type error in a lower-level package (e) prevents go list
|
|
// from producing export data for all packages that depend on it
|
|
// [a-e]. Only f should be loaded from export data, and the rest
|
|
// should be IllTyped.
|
|
exported := packagestest.Export(t, exporter, []packagestest.Module{{
|
|
Name: "golang.org/fake",
|
|
Files: map[string]interface{}{
|
|
"a/a.go": `package a; import "golang.org/fake/b"; const A = "a" + b.B`,
|
|
"b/b.go": `package b; import "golang.org/fake/c"; const B = "b" + c.C`,
|
|
"c/c.go": `package c; import "golang.org/fake/d"; const C = "c" + d.D`,
|
|
"d/d.go": `package d; import "golang.org/fake/e"; const D = "d" + e.E`,
|
|
"e/e.go": `package e; import "golang.org/fake/f"; const E = "e" + f.F + 1`, // type error
|
|
"f/f.go": `package f; const F = "f"`,
|
|
}}})
|
|
defer exported.Cleanup()
|
|
|
|
exported.Config.Mode = packages.LoadSyntax
|
|
initial, err := packages.Load(exported.Config, "golang.org/fake/a", "golang.org/fake/c")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
all := make(map[string]*packages.Package)
|
|
packages.Visit(initial, nil, func(p *packages.Package) {
|
|
all[p.ID] = p
|
|
})
|
|
|
|
for _, test := range []struct {
|
|
id string
|
|
wantSyntax bool
|
|
wantIllTyped bool
|
|
}{
|
|
{"golang.org/fake/a", true, true},
|
|
{"golang.org/fake/b", true, true},
|
|
{"golang.org/fake/c", true, true},
|
|
{"golang.org/fake/d", true, true},
|
|
{"golang.org/fake/e", true, true},
|
|
{"golang.org/fake/f", false, false},
|
|
} {
|
|
if usesOldGolist && !test.wantSyntax {
|
|
// legacy go list always upgrades to LoadAllSyntax, syntax will be filled in.
|
|
test.wantSyntax = true
|
|
}
|
|
p := all[test.id]
|
|
if p == nil {
|
|
t.Errorf("missing package: %s", test.id)
|
|
continue
|
|
}
|
|
if p.Types == nil {
|
|
t.Errorf("missing types.Package for %s", p)
|
|
continue
|
|
} else if !p.Types.Complete() {
|
|
t.Errorf("incomplete types.Package for %s", p)
|
|
}
|
|
if (p.Syntax != nil) != test.wantSyntax {
|
|
if test.wantSyntax {
|
|
t.Errorf("missing ast.Files for %s", test.id)
|
|
} else {
|
|
t.Errorf("unexpected ast.Files for for %s", test.id)
|
|
}
|
|
}
|
|
if p.IllTyped != test.wantIllTyped {
|
|
t.Errorf("IllTyped was %t for %s", p.IllTyped, test.id)
|
|
}
|
|
}
|
|
|
|
// Check value of constant.
|
|
aA := constant(all["golang.org/fake/a"], "A")
|
|
if aA == nil {
|
|
t.Fatalf("a.A: got nil")
|
|
}
|
|
if got, want := aA.String(), `const golang.org/fake/a.A invalid type`; got != want {
|
|
t.Errorf("a.A: got %s, want %s", got, want)
|
|
}
|
|
}
|
|
|
|
// This function tests use of the ParseFile hook to modify
|
|
// the AST after parsing.
|
|
func TestParseFileModifyAST(t *testing.T) { packagestest.TestAll(t, testParseFileModifyAST) }
|
|
func testParseFileModifyAST(t *testing.T, exporter packagestest.Exporter) {
|
|
exported := packagestest.Export(t, exporter, []packagestest.Module{{
|
|
Name: "golang.org/fake",
|
|
Files: map[string]interface{}{
|
|
"a/a.go": `package a; const A = "a" `,
|
|
}}})
|
|
defer exported.Cleanup()
|
|
|
|
exported.Config.Mode = packages.LoadAllSyntax
|
|
exported.Config.ParseFile = func(fset *token.FileSet, filename string, src []byte) (*ast.File, error) {
|
|
const mode = parser.AllErrors | parser.ParseComments
|
|
f, err := parser.ParseFile(fset, filename, src, mode)
|
|
// modify AST to change `const A = "a"` to `const A = "b"`
|
|
spec := f.Decls[0].(*ast.GenDecl).Specs[0].(*ast.ValueSpec)
|
|
spec.Values[0].(*ast.BasicLit).Value = `"b"`
|
|
return f, err
|
|
}
|
|
initial, err := packages.Load(exported.Config, "golang.org/fake/a")
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
// Check value of a.A has been set to "b"
|
|
a := initial[0]
|
|
got := constant(a, "A").Val().String()
|
|
if got != `"b"` {
|
|
t.Errorf("a.A: got %s, want %s", got, `"b"`)
|
|
}
|
|
}
|
|
|
|
func TestOverlay(t *testing.T) { packagestest.TestAll(t, testOverlay) }
|
|
func testOverlay(t *testing.T, exporter packagestest.Exporter) {
|
|
exported := packagestest.Export(t, exporter, []packagestest.Module{{
|
|
Name: "golang.org/fake",
|
|
Files: map[string]interface{}{
|
|
"a/a.go": `package a; import "golang.org/fake/b"; const A = "a" + b.B`,
|
|
"b/b.go": `package b; import "golang.org/fake/c"; const B = "b" + c.C`,
|
|
"c/c.go": `package c; const C = "c"`,
|
|
"d/d.go": `package d; const D = "d"`,
|
|
}}})
|
|
defer exported.Cleanup()
|
|
|
|
for i, test := range []struct {
|
|
overlay map[string][]byte
|
|
want string // expected value of a.A
|
|
wantErrs []string
|
|
}{
|
|
{nil, `"abc"`, nil}, // default
|
|
{map[string][]byte{}, `"abc"`, nil}, // empty overlay
|
|
{map[string][]byte{exported.File("golang.org/fake", "c/c.go"): []byte(`package c; const C = "C"`)}, `"abC"`, nil},
|
|
{map[string][]byte{exported.File("golang.org/fake", "b/b.go"): []byte(`package b; import "golang.org/fake/c"; const B = "B" + c.C`)}, `"aBc"`, nil},
|
|
{map[string][]byte{exported.File("golang.org/fake", "b/b.go"): []byte(`package b; import "d"; const B = "B" + d.D`)}, `unknown`,
|
|
[]string{`could not import d (no metadata for d)`}},
|
|
} {
|
|
exported.Config.Overlay = test.overlay
|
|
exported.Config.Mode = packages.LoadAllSyntax
|
|
initial, err := packages.Load(exported.Config, "golang.org/fake/a")
|
|
if err != nil {
|
|
t.Error(err)
|
|
continue
|
|
}
|
|
|
|
// Check value of a.A.
|
|
a := initial[0]
|
|
aA := constant(a, "A")
|
|
if aA == nil {
|
|
t.Errorf("%d. a.A: got nil", i)
|
|
continue
|
|
}
|
|
got := aA.Val().String()
|
|
if got != test.want {
|
|
t.Errorf("%d. a.A: got %s, want %s", i, got, test.want)
|
|
}
|
|
|
|
// Check errors.
|
|
var errors []packages.Error
|
|
packages.Visit(initial, nil, func(pkg *packages.Package) {
|
|
errors = append(errors, pkg.Errors...)
|
|
})
|
|
if errs := errorMessages(errors); !reflect.DeepEqual(errs, test.wantErrs) {
|
|
t.Errorf("%d. got errors %s, want %s", i, errs, test.wantErrs)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestLoadAllSyntaxImportErrors(t *testing.T) {
|
|
packagestest.TestAll(t, testLoadAllSyntaxImportErrors)
|
|
}
|
|
func testLoadAllSyntaxImportErrors(t *testing.T, exporter packagestest.Exporter) {
|
|
// TODO(matloob): Remove this once go list -e -compiled is fixed. See golang.org/issue/26755
|
|
t.Skip("go list -compiled -e fails with non-zero exit status for empty packages")
|
|
|
|
exported := packagestest.Export(t, exporter, []packagestest.Module{{
|
|
Name: "golang.org/fake",
|
|
Files: map[string]interface{}{
|
|
"unicycle/unicycle.go": `package unicycle; import _ "unicycle"`,
|
|
"bicycle1/bicycle1.go": `package bicycle1; import _ "bicycle2"`,
|
|
"bicycle2/bicycle2.go": `package bicycle2; import _ "bicycle1"`,
|
|
"bad/bad.go": `not a package declaration`,
|
|
"empty/README.txt": `not a go file`,
|
|
"root/root.go": `package root
|
|
import (
|
|
_ "bicycle1"
|
|
_ "unicycle"
|
|
_ "nonesuch"
|
|
_ "empty"
|
|
_ "bad"
|
|
)`,
|
|
}}})
|
|
defer exported.Cleanup()
|
|
|
|
exported.Config.Mode = packages.LoadAllSyntax
|
|
initial, err := packages.Load(exported.Config, "root")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
// Cycle-forming edges are removed from the graph:
|
|
// bicycle2 -> bicycle1
|
|
// unicycle -> unicycle
|
|
graph, all := importGraph(initial)
|
|
wantGraph := `
|
|
bicycle1
|
|
bicycle2
|
|
* root
|
|
unicycle
|
|
bicycle1 -> bicycle2
|
|
root -> bicycle1
|
|
root -> unicycle
|
|
`[1:]
|
|
if graph != wantGraph {
|
|
t.Errorf("wrong import graph: got <<%s>>, want <<%s>>", graph, wantGraph)
|
|
}
|
|
for _, test := range []struct {
|
|
id string
|
|
wantErrs []string
|
|
}{
|
|
{"bicycle1", nil},
|
|
{"bicycle2", []string{
|
|
"could not import bicycle1 (import cycle: [root bicycle1 bicycle2])",
|
|
}},
|
|
{"unicycle", []string{
|
|
"could not import unicycle (import cycle: [root unicycle])",
|
|
}},
|
|
{"root", []string{
|
|
`could not import bad (missing package: "bad")`,
|
|
`could not import empty (missing package: "empty")`,
|
|
`could not import nonesuch (missing package: "nonesuch")`,
|
|
}},
|
|
} {
|
|
p := all[test.id]
|
|
if p == nil {
|
|
t.Errorf("missing package: %s", test.id)
|
|
continue
|
|
}
|
|
if p.Types == nil {
|
|
t.Errorf("missing types.Package for %s", test.id)
|
|
}
|
|
if p.Syntax == nil {
|
|
t.Errorf("missing ast.Files for %s", test.id)
|
|
}
|
|
if !p.IllTyped {
|
|
t.Errorf("IllTyped was false for %s", test.id)
|
|
}
|
|
if errs := errorMessages(p.Errors); !reflect.DeepEqual(errs, test.wantErrs) {
|
|
t.Errorf("in package %s, got errors %s, want %s", p, errs, test.wantErrs)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestAbsoluteFilenames(t *testing.T) { packagestest.TestAll(t, testAbsoluteFilenames) }
|
|
func testAbsoluteFilenames(t *testing.T, exporter packagestest.Exporter) {
|
|
exported := packagestest.Export(t, exporter, []packagestest.Module{{
|
|
Name: "golang.org/fake",
|
|
Files: map[string]interface{}{
|
|
"a/a.go": `package a; const A = 1`,
|
|
"b/b.go": `package b; import ("golang.org/fake/a"; _ "errors"); var B = a.A`,
|
|
"b/vendor/a/a.go": `package a; const A = 1`,
|
|
"c/c.go": `package c; import (_ "golang.org/fake/b"; _ "unsafe")`,
|
|
"c/c2.go": "// +build ignore\n\n" + `package c; import _ "fmt"`,
|
|
"subdir/d/d.go": `package d`,
|
|
"subdir/e/d.go": `package e`,
|
|
"e/e.go": `package main; import _ "golang.org/fake/b"`,
|
|
"e/e2.go": `package main; import _ "golang.org/fake/c"`,
|
|
"f/f.go": `package f`,
|
|
"f/f.s": ``,
|
|
}}})
|
|
defer exported.Cleanup()
|
|
exported.Config.Dir = filepath.Dir(filepath.Dir(exported.File("golang.org/fake", "a/a.go")))
|
|
|
|
checkFile := func(filename string) {
|
|
if !filepath.IsAbs(filename) {
|
|
t.Errorf("filename is not absolute: %s", filename)
|
|
}
|
|
if _, err := os.Stat(filename); err != nil {
|
|
t.Errorf("stat error, %s: %v", filename, err)
|
|
}
|
|
}
|
|
|
|
for _, test := range []struct {
|
|
pattern string
|
|
want string
|
|
}{
|
|
// Import paths
|
|
{"golang.org/fake/a", "a.go"},
|
|
{"golang.org/fake/b/vendor/a", "a.go"},
|
|
{"golang.org/fake/b", "b.go"},
|
|
{"golang.org/fake/c", "c.go"},
|
|
{"golang.org/fake/subdir/d", "d.go"},
|
|
{"golang.org/fake/subdir/e", "d.go"},
|
|
{"golang.org/fake/e", "e.go e2.go"},
|
|
{"golang.org/fake/f", "f.go f.s"},
|
|
// Relative paths
|
|
{"./a", "a.go"},
|
|
{"./b/vendor/a", "a.go"},
|
|
{"./b", "b.go"},
|
|
{"./c", "c.go"},
|
|
{"./subdir/d", "d.go"},
|
|
{"./subdir/e", "d.go"},
|
|
{"./e", "e.go e2.go"},
|
|
{"./f", "f.go f.s"},
|
|
} {
|
|
exported.Config.Mode = packages.LoadFiles
|
|
pkgs, err := packages.Load(exported.Config, test.pattern)
|
|
if err != nil {
|
|
t.Errorf("pattern %s: %v", test.pattern, err)
|
|
continue
|
|
}
|
|
|
|
if got := strings.Join(srcs(pkgs[0]), " "); got != test.want {
|
|
t.Errorf("in package %s, got %s, want %s", test.pattern, got, test.want)
|
|
}
|
|
|
|
// Test that files in all packages exist and are absolute paths.
|
|
_, all := importGraph(pkgs)
|
|
for _, pkg := range all {
|
|
for _, filename := range pkg.GoFiles {
|
|
checkFile(filename)
|
|
}
|
|
for _, filename := range pkg.OtherFiles {
|
|
checkFile(filename)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestContains(t *testing.T) { packagestest.TestAll(t, testContains) }
|
|
func testContains(t *testing.T, exporter packagestest.Exporter) {
|
|
exported := packagestest.Export(t, exporter, []packagestest.Module{{
|
|
Name: "golang.org/fake",
|
|
Files: map[string]interface{}{
|
|
"a/a.go": `package a; import "golang.org/fake/b"`,
|
|
"b/b.go": `package b; import "golang.org/fake/c"`,
|
|
"c/c.go": `package c`,
|
|
}}})
|
|
defer exported.Cleanup()
|
|
bFile := exported.File("golang.org/fake", "b/b.go")
|
|
exported.Config.Mode = packages.LoadImports
|
|
initial, err := packages.Load(exported.Config, "file="+bFile)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
graph, _ := importGraph(initial)
|
|
wantGraph := `
|
|
* golang.org/fake/b
|
|
golang.org/fake/c
|
|
golang.org/fake/b -> golang.org/fake/c
|
|
`[1:]
|
|
if graph != wantGraph {
|
|
t.Errorf("wrong import graph: got <<%s>>, want <<%s>>", graph, wantGraph)
|
|
}
|
|
}
|
|
|
|
// This test ensures that the effective GOARCH variable in the
|
|
// application determines the Sizes function used by the type checker.
|
|
// This behavior is a stop-gap until we make the build system's query
|
|
// too report the correct sizes function for the actual configuration.
|
|
func TestSizes(t *testing.T) { packagestest.TestAll(t, testSizes) }
|
|
func testSizes(t *testing.T, exporter packagestest.Exporter) {
|
|
exported := packagestest.Export(t, exporter, []packagestest.Module{{
|
|
Name: "golang.org/fake",
|
|
Files: map[string]interface{}{
|
|
"a/a.go": `package a; import "unsafe"; const WordSize = 8*unsafe.Sizeof(int(0))`,
|
|
}}})
|
|
defer exported.Cleanup()
|
|
|
|
exported.Config.Mode = packages.LoadSyntax
|
|
savedEnv := exported.Config.Env
|
|
for arch, wantWordSize := range map[string]int64{"386": 32, "amd64": 64} {
|
|
exported.Config.Env = append(savedEnv, "GOARCH="+arch)
|
|
initial, err := packages.Load(exported.Config, "golang.org/fake/a")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if packages.PrintErrors(initial) > 0 {
|
|
t.Fatal("there were errors")
|
|
}
|
|
gotWordSize, _ := constantpkg.Int64Val(constant(initial[0], "WordSize").Val())
|
|
if gotWordSize != wantWordSize {
|
|
t.Errorf("for GOARCH=%s, got word size %d, want %d", arch, gotWordSize, wantWordSize)
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
// TestContains_FallbackSticks ensures that when there are both contains and non-contains queries
|
|
// the decision whether to fallback to the pre-1.11 go list sticks across both sets of calls to
|
|
// go list.
|
|
func TestContains_FallbackSticks(t *testing.T) { packagestest.TestAll(t, testContains_FallbackSticks) }
|
|
func testContains_FallbackSticks(t *testing.T, exporter packagestest.Exporter) {
|
|
exported := packagestest.Export(t, exporter, []packagestest.Module{{
|
|
Name: "golang.org/fake",
|
|
Files: map[string]interface{}{
|
|
"a/a.go": `package a; import "golang.org/fake/b"`,
|
|
"b/b.go": `package b; import "golang.org/fake/c"`,
|
|
"c/c.go": `package c`,
|
|
}}})
|
|
defer exported.Cleanup()
|
|
|
|
exported.Config.Mode = packages.LoadImports
|
|
bFile := exported.File("golang.org/fake", "b/b.go")
|
|
initial, err := packages.Load(exported.Config, "golang.org/fake/a", "file="+bFile)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
graph, _ := importGraph(initial)
|
|
wantGraph := `
|
|
* golang.org/fake/a
|
|
* golang.org/fake/b
|
|
golang.org/fake/c
|
|
golang.org/fake/a -> golang.org/fake/b
|
|
golang.org/fake/b -> golang.org/fake/c
|
|
`[1:]
|
|
if graph != wantGraph {
|
|
t.Errorf("wrong import graph: got <<%s>>, want <<%s>>", graph, wantGraph)
|
|
}
|
|
}
|
|
|
|
func TestName(t *testing.T) { packagestest.TestAll(t, testName) }
|
|
func testName(t *testing.T, exporter packagestest.Exporter) {
|
|
exported := packagestest.Export(t, exporter, []packagestest.Module{{
|
|
Name: "golang.org/fake",
|
|
Files: map[string]interface{}{
|
|
"a/needle/needle.go": `package needle; import "golang.org/fake/c"`,
|
|
"b/needle/needle.go": `package needle;`,
|
|
"c/c.go": `package c;`,
|
|
"irrelevant/irrelevant.go": `package irrelevant;`,
|
|
}}})
|
|
defer exported.Cleanup()
|
|
|
|
exported.Config.Mode = packages.LoadImports
|
|
initial, err := packages.Load(exported.Config, "name=needle")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
graph, _ := importGraph(initial)
|
|
wantGraph := `
|
|
* golang.org/fake/a/needle
|
|
* golang.org/fake/b/needle
|
|
golang.org/fake/c
|
|
golang.org/fake/a/needle -> golang.org/fake/c
|
|
`[1:]
|
|
if graph != wantGraph {
|
|
t.Errorf("wrong import graph: got <<%s>>, want <<%s>>", graph, wantGraph)
|
|
}
|
|
}
|
|
|
|
func TestName_Modules(t *testing.T) {
|
|
if usesOldGolist {
|
|
t.Skip("pre-modules version of Go")
|
|
}
|
|
|
|
exported := packagestest.Export(t, packagestest.Modules, []packagestest.Module{{
|
|
Name: "golang.org/fake",
|
|
Files: map[string]interface{}{
|
|
"pkg/pkg.go": `package pkg`,
|
|
}}})
|
|
defer exported.Cleanup()
|
|
|
|
wd, err := os.Getwd()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
// testdata/TestNamed_Modules contains:
|
|
// - pkg/mod/github.com/heschik/tools-testrepo@v1.0.0/pkg
|
|
// - pkg/mod/github.com/heschik/tools-testrepo/v2@v2.0.0/pkg
|
|
// - src/b/pkg
|
|
exported.Config.Mode = packages.LoadImports
|
|
exported.Config.Env = append(exported.Config.Env, "GOPATH="+wd+"/testdata/TestName_Modules")
|
|
initial, err := packages.Load(exported.Config, "name=pkg")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
graph, _ := importGraph(initial)
|
|
wantGraph := `
|
|
* github.com/heschik/tools-testrepo/pkg
|
|
* github.com/heschik/tools-testrepo/v2/pkg
|
|
* golang.org/fake/pkg
|
|
`[1:]
|
|
if graph != wantGraph {
|
|
t.Errorf("wrong import graph: got <<%s>>, want <<%s>>", graph, wantGraph)
|
|
}
|
|
}
|
|
|
|
func TestName_ModulesDedup(t *testing.T) {
|
|
if usesOldGolist {
|
|
t.Skip("pre-modules version of Go")
|
|
}
|
|
|
|
exported := packagestest.Export(t, packagestest.Modules, []packagestest.Module{{
|
|
Name: "golang.org/fake",
|
|
Files: map[string]interface{}{
|
|
"fake.go": `package fake`,
|
|
}}})
|
|
defer exported.Cleanup()
|
|
|
|
wd, err := os.Getwd()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
// testdata/TestNamed_ModulesDedup contains:
|
|
// - pkg/mod/github.com/heschik/tools-testrepo/v2@v2.0.2/pkg/pkg.go
|
|
// - pkg/mod/github.com/heschik/tools-testrepo/v2@v2.0.1/pkg/pkg.go
|
|
// - pkg/mod/github.com/heschik/tools-testrepo@v1.0.0/pkg/pkg.go
|
|
// but, inexplicably, not v2.0.0. Nobody knows why.
|
|
exported.Config.Mode = packages.LoadImports
|
|
exported.Config.Env = append(exported.Config.Env, "GOPATH="+wd+"/testdata/TestName_ModulesDedup")
|
|
initial, err := packages.Load(exported.Config, "name=pkg")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
for _, pkg := range initial {
|
|
if strings.Contains(pkg.PkgPath, "v2") {
|
|
if strings.Contains(pkg.GoFiles[0], "v2.0.2") {
|
|
return
|
|
}
|
|
}
|
|
}
|
|
t.Errorf("didn't find v2.0.2 of pkg in Load results: %v", initial)
|
|
}
|
|
|
|
func TestJSON(t *testing.T) { packagestest.TestAll(t, testJSON) }
|
|
func testJSON(t *testing.T, exporter packagestest.Exporter) {
|
|
//TODO: add in some errors
|
|
exported := packagestest.Export(t, exporter, []packagestest.Module{{
|
|
Name: "golang.org/fake",
|
|
Files: map[string]interface{}{
|
|
"a/a.go": `package a; const A = 1`,
|
|
"b/b.go": `package b; import "golang.org/fake/a"; var B = a.A`,
|
|
"c/c.go": `package c; import "golang.org/fake/b" ; var C = b.B`,
|
|
"d/d.go": `package d; import "golang.org/fake/b" ; var D = b.B`,
|
|
}}})
|
|
defer exported.Cleanup()
|
|
|
|
exported.Config.Mode = packages.LoadImports
|
|
initial, err := packages.Load(exported.Config, "golang.org/fake/c", "golang.org/fake/d")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
// Visit and print all packages.
|
|
buf := &bytes.Buffer{}
|
|
enc := json.NewEncoder(buf)
|
|
enc.SetIndent("", "\t")
|
|
packages.Visit(initial, nil, func(pkg *packages.Package) {
|
|
// trim the source lists for stable results
|
|
pkg.GoFiles = cleanPaths(pkg.GoFiles)
|
|
pkg.CompiledGoFiles = cleanPaths(pkg.CompiledGoFiles)
|
|
pkg.OtherFiles = cleanPaths(pkg.OtherFiles)
|
|
if err := enc.Encode(pkg); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
})
|
|
|
|
wantJSON := `
|
|
{
|
|
"ID": "golang.org/fake/a",
|
|
"Name": "a",
|
|
"PkgPath": "golang.org/fake/a",
|
|
"GoFiles": [
|
|
"a.go"
|
|
],
|
|
"CompiledGoFiles": [
|
|
"a.go"
|
|
]
|
|
}
|
|
{
|
|
"ID": "golang.org/fake/b",
|
|
"Name": "b",
|
|
"PkgPath": "golang.org/fake/b",
|
|
"GoFiles": [
|
|
"b.go"
|
|
],
|
|
"CompiledGoFiles": [
|
|
"b.go"
|
|
],
|
|
"Imports": {
|
|
"golang.org/fake/a": "golang.org/fake/a"
|
|
}
|
|
}
|
|
{
|
|
"ID": "golang.org/fake/c",
|
|
"Name": "c",
|
|
"PkgPath": "golang.org/fake/c",
|
|
"GoFiles": [
|
|
"c.go"
|
|
],
|
|
"CompiledGoFiles": [
|
|
"c.go"
|
|
],
|
|
"Imports": {
|
|
"golang.org/fake/b": "golang.org/fake/b"
|
|
}
|
|
}
|
|
{
|
|
"ID": "golang.org/fake/d",
|
|
"Name": "d",
|
|
"PkgPath": "golang.org/fake/d",
|
|
"GoFiles": [
|
|
"d.go"
|
|
],
|
|
"CompiledGoFiles": [
|
|
"d.go"
|
|
],
|
|
"Imports": {
|
|
"golang.org/fake/b": "golang.org/fake/b"
|
|
}
|
|
}
|
|
`[1:]
|
|
|
|
if buf.String() != wantJSON {
|
|
t.Errorf("wrong JSON: got <<%s>>, want <<%s>>", buf.String(), wantJSON)
|
|
}
|
|
// now decode it again
|
|
var decoded []*packages.Package
|
|
dec := json.NewDecoder(buf)
|
|
for dec.More() {
|
|
p := new(packages.Package)
|
|
if err := dec.Decode(p); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
decoded = append(decoded, p)
|
|
}
|
|
if len(decoded) != 4 {
|
|
t.Fatalf("got %d packages, want 4", len(decoded))
|
|
}
|
|
for i, want := range []*packages.Package{{
|
|
ID: "golang.org/fake/a",
|
|
Name: "a",
|
|
}, {
|
|
ID: "golang.org/fake/b",
|
|
Name: "b",
|
|
Imports: map[string]*packages.Package{
|
|
"golang.org/fake/a": &packages.Package{ID: "golang.org/fake/a"},
|
|
},
|
|
}, {
|
|
ID: "golang.org/fake/c",
|
|
Name: "c",
|
|
Imports: map[string]*packages.Package{
|
|
"golang.org/fake/b": &packages.Package{ID: "golang.org/fake/b"},
|
|
},
|
|
}, {
|
|
ID: "golang.org/fake/d",
|
|
Name: "d",
|
|
Imports: map[string]*packages.Package{
|
|
"golang.org/fake/b": &packages.Package{ID: "golang.org/fake/b"},
|
|
},
|
|
}} {
|
|
got := decoded[i]
|
|
if got.ID != want.ID {
|
|
t.Errorf("Package %d has ID %q want %q", i, got.ID, want.ID)
|
|
}
|
|
if got.Name != want.Name {
|
|
t.Errorf("Package %q has Name %q want %q", got.ID, got.Name, want.Name)
|
|
}
|
|
if len(got.Imports) != len(want.Imports) {
|
|
t.Errorf("Package %q has %d imports want %d", got.ID, len(got.Imports), len(want.Imports))
|
|
continue
|
|
}
|
|
for path, ipkg := range got.Imports {
|
|
if want.Imports[path] == nil {
|
|
t.Errorf("Package %q has unexpected import %q", got.ID, path)
|
|
continue
|
|
}
|
|
if want.Imports[path].ID != ipkg.ID {
|
|
t.Errorf("Package %q import %q is %q want %q", got.ID, path, ipkg.ID, want.Imports[path].ID)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestRejectInvalidQueries(t *testing.T) {
|
|
queries := []string{"key=", "key=value"}
|
|
cfg := &packages.Config{
|
|
Mode: packages.LoadImports,
|
|
Env: append(os.Environ(), "GO111MODULE=off"),
|
|
}
|
|
for _, q := range queries {
|
|
if _, err := packages.Load(cfg, q); err == nil {
|
|
t.Errorf("packages.Load(%q) succeeded. Expected \"invalid query type\" error", q)
|
|
} else if !strings.Contains(err.Error(), "invalid query type") {
|
|
t.Errorf("packages.Load(%q): got error %v, want \"invalid query type\" error", q, err)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestPatternPassthrough(t *testing.T) { packagestest.TestAll(t, testPatternPassthrough) }
|
|
func testPatternPassthrough(t *testing.T, exporter packagestest.Exporter) {
|
|
exported := packagestest.Export(t, exporter, []packagestest.Module{{
|
|
Name: "golang.org/fake",
|
|
Files: map[string]interface{}{
|
|
"a/a.go": `package a;`,
|
|
}}})
|
|
defer exported.Cleanup()
|
|
|
|
initial, err := packages.Load(exported.Config, "pattern=a")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
graph, _ := importGraph(initial)
|
|
wantGraph := `
|
|
* a
|
|
`[1:]
|
|
if graph != wantGraph {
|
|
t.Errorf("wrong import graph: got <<%s>>, want <<%s>>", graph, wantGraph)
|
|
}
|
|
|
|
}
|
|
|
|
func TestConfigDefaultEnv(t *testing.T) { packagestest.TestAll(t, testConfigDefaultEnv) }
|
|
func testConfigDefaultEnv(t *testing.T, exporter packagestest.Exporter) {
|
|
if runtime.GOOS == "windows" {
|
|
// TODO(jayconrod): write an equivalent batch script for windows.
|
|
// Hint: "type" can be used to read a file to stdout.
|
|
t.Skip("test requires sh")
|
|
}
|
|
exported := packagestest.Export(t, exporter, []packagestest.Module{{
|
|
Name: "golang.org/fake",
|
|
Files: map[string]interface{}{
|
|
"bin/gopackagesdriver": packagestest.Script(`#!/bin/sh
|
|
|
|
cat - <<'EOF'
|
|
{
|
|
"Roots": ["gopackagesdriver"],
|
|
"Packages": [{"ID": "gopackagesdriver", "Name": "gopackagesdriver"}]
|
|
}
|
|
EOF
|
|
`),
|
|
"golist/golist.go": "package golist",
|
|
}}})
|
|
defer exported.Cleanup()
|
|
driver := exported.File("golang.org/fake", "bin/gopackagesdriver")
|
|
binDir := filepath.Dir(driver)
|
|
if err := os.Chmod(driver, 0755); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
path, ok := os.LookupEnv("PATH")
|
|
var pathWithDriver string
|
|
if ok {
|
|
pathWithDriver = binDir + string(os.PathListSeparator) + path
|
|
} else {
|
|
pathWithDriver = binDir
|
|
}
|
|
coreEnv := exported.Config.Env
|
|
for _, test := range []struct {
|
|
desc string
|
|
path string
|
|
driver string
|
|
wantIDs string
|
|
}{
|
|
{
|
|
desc: "driver_off",
|
|
path: pathWithDriver,
|
|
driver: "off",
|
|
wantIDs: "[golist]",
|
|
}, {
|
|
desc: "driver_unset",
|
|
path: pathWithDriver,
|
|
driver: "",
|
|
wantIDs: "[gopackagesdriver]",
|
|
}, {
|
|
desc: "driver_set",
|
|
path: "",
|
|
driver: driver,
|
|
wantIDs: "[gopackagesdriver]",
|
|
},
|
|
} {
|
|
t.Run(test.desc, func(t *testing.T) {
|
|
oldPath := os.Getenv("PATH")
|
|
os.Setenv("PATH", test.path)
|
|
defer os.Setenv("PATH", oldPath)
|
|
exported.Config.Env = append(coreEnv, "GOPACKAGESDRIVER="+test.driver)
|
|
pkgs, err := packages.Load(exported.Config, "golist")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
gotIds := make([]string, len(pkgs))
|
|
for i, pkg := range pkgs {
|
|
gotIds[i] = pkg.ID
|
|
}
|
|
if fmt.Sprint(pkgs) != test.wantIDs {
|
|
t.Errorf("got %v; want %v", gotIds, test.wantIDs)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func errorMessages(errors []packages.Error) []string {
|
|
var msgs []string
|
|
for _, err := range errors {
|
|
msgs = append(msgs, err.Msg)
|
|
}
|
|
return msgs
|
|
}
|
|
|
|
func srcs(p *packages.Package) []string {
|
|
return cleanPaths(append(p.GoFiles, p.OtherFiles...))
|
|
}
|
|
|
|
// cleanPaths attempts to reduce path names to stable forms
|
|
func cleanPaths(paths []string) []string {
|
|
result := make([]string, len(paths))
|
|
for i, src := range paths {
|
|
// The default location for cache data is a subdirectory named go-build
|
|
// in the standard user cache directory for the current operating system.
|
|
if strings.Contains(filepath.ToSlash(src), "/go-build/") {
|
|
result[i] = fmt.Sprintf("%d.go", i) // make cache names predictable
|
|
} else {
|
|
result[i] = filepath.Base(src)
|
|
}
|
|
}
|
|
return result
|
|
}
|
|
|
|
// importGraph returns the import graph as a user-friendly string,
|
|
// and a map containing all packages keyed by ID.
|
|
func importGraph(initial []*packages.Package) (string, map[string]*packages.Package) {
|
|
out := new(bytes.Buffer)
|
|
|
|
initialSet := make(map[*packages.Package]bool)
|
|
for _, p := range initial {
|
|
initialSet[p] = true
|
|
}
|
|
|
|
// We can't use Visit because we need to prune
|
|
// the traversal of specific edges, not just nodes.
|
|
var nodes, edges []string
|
|
res := make(map[string]*packages.Package)
|
|
seen := make(map[*packages.Package]bool)
|
|
var visit func(p *packages.Package)
|
|
visit = func(p *packages.Package) {
|
|
if !seen[p] {
|
|
seen[p] = true
|
|
if res[p.ID] != nil {
|
|
panic("duplicate ID: " + p.ID)
|
|
}
|
|
res[p.ID] = p
|
|
|
|
star := ' ' // mark initial packages with a star
|
|
if initialSet[p] {
|
|
star = '*'
|
|
}
|
|
nodes = append(nodes, fmt.Sprintf("%c %s", star, p.ID))
|
|
|
|
// To avoid a lot of noise,
|
|
// we prune uninteresting dependencies of testmain packages,
|
|
// which we identify by this import:
|
|
isTestMain := p.Imports["testing/internal/testdeps"] != nil
|
|
|
|
for _, imp := range p.Imports {
|
|
if isTestMain {
|
|
switch imp.ID {
|
|
case "os", "testing", "testing/internal/testdeps":
|
|
edges = append(edges, fmt.Sprintf("%s -> %s (pruned)", p, imp))
|
|
continue
|
|
}
|
|
}
|
|
edges = append(edges, fmt.Sprintf("%s -> %s", p, imp))
|
|
visit(imp)
|
|
}
|
|
}
|
|
}
|
|
for _, p := range initial {
|
|
visit(p)
|
|
}
|
|
|
|
// Sort, ignoring leading optional star prefix.
|
|
sort.Slice(nodes, func(i, j int) bool { return nodes[i][2:] < nodes[j][2:] })
|
|
for _, node := range nodes {
|
|
fmt.Fprintf(out, "%s\n", node)
|
|
}
|
|
|
|
sort.Strings(edges)
|
|
for _, edge := range edges {
|
|
fmt.Fprintf(out, " %s\n", edge)
|
|
}
|
|
|
|
return out.String(), res
|
|
}
|
|
|
|
func constant(p *packages.Package, name string) *types.Const {
|
|
if p == nil || p.Types == nil {
|
|
return nil
|
|
}
|
|
c := p.Types.Scope().Lookup(name)
|
|
if c == nil {
|
|
return nil
|
|
}
|
|
return c.(*types.Const)
|
|
}
|