+++ /dev/null
-// +build go1.12
-
-package multichecker_test
-
-import (
- "fmt"
- "os"
- "os/exec"
- "runtime"
- "testing"
-
- "golang.org/x/tools/go/analysis"
- "golang.org/x/tools/go/analysis/multichecker"
- "golang.org/x/tools/go/analysis/passes/findcall"
- "golang.org/x/tools/internal/testenv"
-)
-
-func main() {
- fail := &analysis.Analyzer{
- Name: "fail",
- Doc: "always fail on a package 'sort'",
- Run: func(pass *analysis.Pass) (interface{}, error) {
- if pass.Pkg.Path() == "sort" {
- return nil, fmt.Errorf("failed")
- }
- return nil, nil
- },
- }
- multichecker.Main(findcall.Analyzer, fail)
-}
-
-// TestExitCode ensures that analysis failures are reported correctly.
-// This test fork/execs the main function above.
-func TestExitCode(t *testing.T) {
- if runtime.GOOS != "linux" {
- t.Skipf("skipping fork/exec test on this platform")
- }
-
- if os.Getenv("MULTICHECKER_CHILD") == "1" {
- // child process
-
- // replace [progname -test.run=TestExitCode -- ...]
- // by [progname ...]
- os.Args = os.Args[2:]
- os.Args[0] = "vet"
- main()
- panic("unreachable")
- }
-
- testenv.NeedsTool(t, "go")
-
- for _, test := range []struct {
- args []string
- want int
- }{
- {[]string{"nosuchdir/..."}, 1}, // matched no packages
- {[]string{"nosuchpkg"}, 1}, // matched no packages
- {[]string{"-unknownflag"}, 2}, // flag error
- {[]string{"-findcall.name=panic", "io"}, 3}, // finds diagnostics
- {[]string{"-findcall=0", "io"}, 0}, // no checkers
- {[]string{"-findcall.name=nosuchfunc", "io"}, 0}, // no diagnostics
- {[]string{"-findcall.name=panic", "sort", "io"}, 1}, // 'fail' failed on 'sort'
-
- // -json: exits zero even in face of diagnostics or package errors.
- {[]string{"-findcall.name=panic", "-json", "io"}, 0},
- {[]string{"-findcall.name=panic", "-json", "io"}, 0},
- {[]string{"-findcall.name=panic", "-json", "sort", "io"}, 0},
- } {
- args := []string{"-test.run=TestExitCode", "--"}
- args = append(args, test.args...)
- cmd := exec.Command(os.Args[0], args...)
- cmd.Env = append(os.Environ(), "MULTICHECKER_CHILD=1")
- out, err := cmd.CombinedOutput()
- if len(out) > 0 {
- t.Logf("%s: out=<<%s>>", test.args, out)
- }
- var exitcode int
- if err, ok := err.(*exec.ExitError); ok {
- exitcode = err.ExitCode() // requires go1.12
- }
- if exitcode != test.want {
- t.Errorf("%s: exited %d, want %d", test.args, exitcode, test.want)
- }
- }
-}