{
					command:   []string{"install", "--dry-run", "--revision", ""},
					errString: InvalidRevision,
				},
				{
					command:   []string{"install", "--dry-run", "--revision", "1.8.0"},
					errString: InvalidRevision,
				},
				{
					command:   []string{"install", "--dry-run", "--set", "values.global.network=network1"},
					errString: "",
				},
			}
			for _, test := range testCases {

	}

	errString := "there are files need roll back"
	originalErr := errors.New(errString)
	err = rollbackFiles(filesToRollBack, originalErr)
	if err == nil {
		t.Fatalf("Expected error contains %q, got nil", errString)
	}
	if !strings.Contains(err.Error(), errString) {
		t.Fatalf("Expected error contains %q, got %v", errString, err)
	}
}

	start := time.Now()
	body := bytesOrLength(req)
	resp, err := c.roundtrip(h, req)
	end := time.Now()
	status := http.StatusOK
	errString := ""
	if err != nil {
		errString = err.Error()
		if IsRemoteErr(err) == nil {
			status = http.StatusInternalServerError
		} else {
			status = http.StatusBadRequest
		}
	}

	prefix := t.Prefix

        def listener = listener()

        when:
        listener.started(startedNotification(ErroringDetails))

        then:
        def e = thrown(RuntimeException)
        e.message == "Failed to invoke erroring() of $ErroringDetails.name"
        e.cause instanceof RuntimeException
        e.cause.message == "!"
    }

    BuildOperationNotificationListener listener() {

                automatically cancel the request and send the client an error.

                If `auto_error` is set to `False`, when the query parameter is not
                available, instead of erroring out, the dependency result will be
                `None`.

                This is useful when you want to have optional authentication.

                It is also useful when you want to have authentication that can be

                and send the client an error.

                If `auto_error` is set to `False`, when the HTTP Authorization header
                is not available, instead of erroring out, the dependency result will
                be `None`.

                This is useful when you want to have optional authentication.

                It is also useful when you want to have authentication that can be

	if _, err := r.Read(buf[:]); err != io.EOF {
		t.Fatalf("control pipe read get err %v want io.EOF", err)
	}

	// 💥
	if err := cmd.Process.Signal(os.Signal(syscall.SIGABRT)); err != nil {
		t.Fatalf("erroring signaling child: %v", err)
	}

	err = cmd.Wait()
	t.Logf("child output:\n%s", output.String())
	if err == nil {
		t.Fatalf("Wait succeeded, want SIGABRT")
	}
	ee, ok := err.(*exec.ExitError)