diff options
Diffstat (limited to 'vendor/github.com/spf13/cobra/cobra/cmd/golden_test.go')
-rw-r--r-- | vendor/github.com/spf13/cobra/cobra/cmd/golden_test.go | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/vendor/github.com/spf13/cobra/cobra/cmd/golden_test.go b/vendor/github.com/spf13/cobra/cobra/cmd/golden_test.go new file mode 100644 index 000000000..0ac7e8935 --- /dev/null +++ b/vendor/github.com/spf13/cobra/cobra/cmd/golden_test.go @@ -0,0 +1,77 @@ +package cmd + +import ( + "bytes" + "errors" + "flag" + "fmt" + "io/ioutil" + "os/exec" +) + +var update = flag.Bool("update", false, "update .golden files") + +func init() { + // Mute commands. + addCmd.SetOutput(new(bytes.Buffer)) + initCmd.SetOutput(new(bytes.Buffer)) +} + +// compareFiles compares the content of files with pathA and pathB. +// If contents are equal, it returns nil. +// If not, it returns which files are not equal +// and diff (if system has diff command) between these files. +func compareFiles(pathA, pathB string) error { + contentA, err := ioutil.ReadFile(pathA) + if err != nil { + return err + } + contentB, err := ioutil.ReadFile(pathB) + if err != nil { + return err + } + if !bytes.Equal(contentA, contentB) { + output := new(bytes.Buffer) + output.WriteString(fmt.Sprintf("%q and %q are not equal!\n\n", pathA, pathB)) + + diffPath, err := exec.LookPath("diff") + if err != nil { + // Don't execute diff if it can't be found. + return nil + } + diffCmd := exec.Command(diffPath, pathA, pathB) + diffCmd.Stdout = output + diffCmd.Stderr = output + + output.WriteString("$ diff " + pathA + " " + pathB + "\n") + if err := diffCmd.Run(); err != nil { + output.WriteString("\n" + err.Error()) + } + return errors.New(output.String()) + } + return nil +} + +// checkLackFiles checks if all elements of expected are in got. +func checkLackFiles(expected, got []string) error { + lacks := make([]string, 0, len(expected)) + for _, ev := range expected { + if !stringInStringSlice(ev, got) { + lacks = append(lacks, ev) + } + } + if len(lacks) > 0 { + return fmt.Errorf("Lack %v file(s): %v", len(lacks), lacks) + } + return nil +} + +// stringInStringSlice checks if s is an element of slice. +func stringInStringSlice(s string, slice []string) bool { + for _, v := range slice { + if s == v { + return true + } + } + return false +} |