109 lines
2.5 KiB
Go
109 lines
2.5 KiB
Go
// Copyright 2018 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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// +build go1.12
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package unitchecker_test
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// This test depends on features such as
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// go vet's support for vetx files (1.11) and
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// the (*os.ProcessState).ExitCode method (1.12).
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import (
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"flag"
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"os"
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"os/exec"
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"runtime"
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"strings"
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"testing"
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"golang.org/x/tools/go/analysis/analysistest"
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"golang.org/x/tools/go/analysis/passes/findcall"
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"golang.org/x/tools/go/analysis/passes/printf"
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"golang.org/x/tools/go/analysis/unitchecker"
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)
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func TestMain(m *testing.M) {
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if os.Getenv("UNITCHECKER_CHILD") == "1" {
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// child process
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main()
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panic("unreachable")
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}
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// test
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flag.Parse()
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os.Exit(m.Run())
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}
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func main() {
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unitchecker.Main(
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findcall.Analyzer,
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printf.Analyzer,
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)
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}
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// This is a very basic integration test of modular
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// analysis with facts using unitchecker under "go vet".
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// It fork/execs the main function above.
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func TestIntegration(t *testing.T) {
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if runtime.GOOS != "linux" {
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t.Skipf("skipping fork/exec test on this platform")
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}
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testdata := analysistest.TestData()
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const wantA = `# a
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testdata/src/a/a.go:4:11: call of MyFunc123(...)
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`
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const wantB = `# b
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testdata/src/b/b.go:6:13: call of MyFunc123(...)
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testdata/src/b/b.go:7:11: call of MyFunc123(...)
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`
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const wantAJSON = `# a
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{
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"a": {
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"findcall": [
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{
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"posn": "$GOPATH/src/a/a.go:4:11",
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"message": "call of MyFunc123(...)"
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}
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]
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}
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}
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`
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for _, test := range []struct {
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args string
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wantOut string
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wantExit int
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}{
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{args: "a", wantOut: wantA, wantExit: 2},
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{args: "b", wantOut: wantB, wantExit: 2},
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{args: "a b", wantOut: wantA + wantB, wantExit: 2},
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{args: "-json a", wantOut: wantAJSON, wantExit: 0},
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{args: "-c=0 a", wantOut: wantA + "4 MyFunc123()\n", wantExit: 2},
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} {
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cmd := exec.Command("go", "vet", "-vettool="+os.Args[0], "-findcall.name=MyFunc123")
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cmd.Args = append(cmd.Args, strings.Fields(test.args)...)
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cmd.Env = append(os.Environ(),
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"UNITCHECKER_CHILD=1",
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"GOPATH="+testdata,
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)
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out, err := cmd.CombinedOutput()
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exitcode := 0
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if exitErr, ok := err.(*exec.ExitError); ok {
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exitcode = exitErr.ExitCode()
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}
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if exitcode != test.wantExit {
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t.Errorf("%s: got exit code %d, want %d", test.args, exitcode, test.wantExit)
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}
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got := strings.Replace(string(out), testdata, "$GOPATH", -1)
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if got != test.wantOut {
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t.Errorf("%s: got <<%s>>, want <<%s>>", test.args, got, test.wantOut)
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}
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}
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}
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