125 lines
3.0 KiB
Go
125 lines
3.0 KiB
Go
// Copyright 2014 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package ssa_test
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// Tests of FindTests. CreateTestMainPackage is tested via the interpreter.
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// TODO(adonovan): test the 'pkgs' result from FindTests.
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import (
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"fmt"
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"sort"
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"testing"
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"golang.org/x/tools/go/loader"
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"golang.org/x/tools/go/ssa"
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"golang.org/x/tools/go/ssa/ssautil"
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)
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func create(t *testing.T, content string) *ssa.Package {
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var conf loader.Config
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f, err := conf.ParseFile("foo_test.go", content)
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if err != nil {
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t.Fatal(err)
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}
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conf.CreateFromFiles("foo", f)
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lprog, err := conf.Load()
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if err != nil {
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t.Fatal(err)
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}
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// We needn't call Build.
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foo := lprog.Package("foo").Pkg
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return ssautil.CreateProgram(lprog, ssa.SanityCheckFunctions).Package(foo)
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}
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func TestFindTests(t *testing.T) {
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test := `
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package foo
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import "testing"
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type T int
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// Tests:
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func Test(t *testing.T) {}
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func TestA(t *testing.T) {}
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func TestB(t *testing.T) {}
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// Not tests:
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func testC(t *testing.T) {}
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func TestD() {}
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func testE(t *testing.T) int { return 0 }
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func (T) Test(t *testing.T) {}
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// Benchmarks:
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func Benchmark(*testing.B) {}
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func BenchmarkA(b *testing.B) {}
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func BenchmarkB(*testing.B) {}
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// Not benchmarks:
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func benchmarkC(t *testing.T) {}
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func BenchmarkD() {}
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func benchmarkE(t *testing.T) int { return 0 }
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func (T) Benchmark(t *testing.T) {}
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// Examples:
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func Example() {}
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func ExampleA() {}
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// Not examples:
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func exampleC() {}
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func ExampleD(t *testing.T) {}
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func exampleE() int { return 0 }
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func (T) Example() {}
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`
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pkg := create(t, test)
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tests, benchmarks, examples, _ := ssa.FindTests(pkg)
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sort.Sort(funcsByPos(tests))
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if got, want := fmt.Sprint(tests), "[foo.Test foo.TestA foo.TestB]"; got != want {
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t.Errorf("FindTests.tests = %s, want %s", got, want)
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}
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sort.Sort(funcsByPos(benchmarks))
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if got, want := fmt.Sprint(benchmarks), "[foo.Benchmark foo.BenchmarkA foo.BenchmarkB]"; got != want {
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t.Errorf("FindTests.benchmarks = %s, want %s", got, want)
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}
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sort.Sort(funcsByPos(examples))
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if got, want := fmt.Sprint(examples), "[foo.Example foo.ExampleA]"; got != want {
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t.Errorf("FindTests examples = %s, want %s", got, want)
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}
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}
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func TestFindTestsTesting(t *testing.T) {
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test := `
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package foo
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// foo does not import "testing", but defines Examples.
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func Example() {}
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func ExampleA() {}
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`
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pkg := create(t, test)
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tests, benchmarks, examples, _ := ssa.FindTests(pkg)
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if len(tests) > 0 {
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t.Errorf("FindTests.tests = %s, want none", tests)
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}
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if len(benchmarks) > 0 {
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t.Errorf("FindTests.benchmarks = %s, want none", benchmarks)
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}
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sort.Sort(funcsByPos(examples))
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if got, want := fmt.Sprint(examples), "[foo.Example foo.ExampleA]"; got != want {
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t.Errorf("FindTests examples = %s, want %s", got, want)
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}
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}
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type funcsByPos []*ssa.Function
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func (p funcsByPos) Len() int { return len(p) }
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func (p funcsByPos) Less(i, j int) bool { return p[i].Pos() < p[j].Pos() }
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func (p funcsByPos) Swap(i, j int) { p[i], p[j] = p[j], p[i] }
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