Giant blob of minor changes

[dotfiles/.git] / .config / coc / extensions / coc-go-data / tools / pkg / mod / golang.org / x / tools@v0.0.0-20201105173854-bc9fc8d8c4bc / go / analysis / multichecker / multichecker_test.go

diff --git a/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.0.0-20201105173854-bc9fc8d8c4bc/go/analysis/multichecker/multichecker_test.go b/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.0.0-20201105173854-bc9fc8d8c4bc/go/analysis/multichecker/multichecker_test.go
new file mode 100644 (file)
index 0000000..ca3dab5
--- /dev/null
+++ b/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.0.0-20201105173854-bc9fc8d8c4bc/go/analysis/multichecker/multichecker_test.go
@@ -0,0 +1,85 @@
+// +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)
+               }
+       }
+}