.gitignore added
[dotfiles/.git] / .config / coc / extensions / coc-go-data / tools / pkg / mod / golang.org / x / tools@v0.1.0 / go / analysis / internal / analysisflags / flags_test.go
diff --git a/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.1.0/go/analysis/internal/analysisflags/flags_test.go b/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.1.0/go/analysis/internal/analysisflags/flags_test.go
new file mode 100644 (file)
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@@ -0,0 +1,67 @@
+// 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 analysisflags_test
+
+import (
+       "fmt"
+       "os"
+       "os/exec"
+       "runtime"
+       "strings"
+       "testing"
+
+       "golang.org/x/tools/go/analysis"
+       "golang.org/x/tools/go/analysis/internal/analysisflags"
+)
+
+func main() {
+       fmt.Println(analysisflags.Parse([]*analysis.Analyzer{
+               {Name: "a1", Doc: "a1"},
+               {Name: "a2", Doc: "a2"},
+               {Name: "a3", Doc: "a3"},
+       }, true))
+       os.Exit(0)
+}
+
+// This test fork/execs the main function above.
+func TestExec(t *testing.T) {
+       if runtime.GOOS != "linux" {
+               t.Skipf("skipping fork/exec test on this platform")
+       }
+
+       progname := os.Args[0]
+
+       if os.Getenv("ANALYSISFLAGS_CHILD") == "1" {
+               // child process
+               os.Args = strings.Fields(progname + " " + os.Getenv("FLAGS"))
+               main()
+               panic("unreachable")
+       }
+
+       for _, test := range []struct {
+               flags string
+               want  string
+       }{
+               {"", "[a1 a2 a3]"},
+               {"-a1=0", "[a2 a3]"},
+               {"-a1=1", "[a1]"},
+               {"-a1", "[a1]"},
+               {"-a1=1 -a3=1", "[a1 a3]"},
+               {"-a1=1 -a3=0", "[a1]"},
+       } {
+               cmd := exec.Command(progname, "-test.run=TestExec")
+               cmd.Env = append(os.Environ(), "ANALYSISFLAGS_CHILD=1", "FLAGS="+test.flags)
+
+               output, err := cmd.CombinedOutput()
+               if err != nil {
+                       t.Fatalf("exec failed: %v; output=<<%s>>", err, output)
+               }
+
+               got := strings.TrimSpace(string(output))
+               if got != test.want {
+                       t.Errorf("got %s, want %s", got, test.want)
+               }
+       }
+}