mirror of
https://github.com/spf13/cobra
synced 2024-05-04 03:49:02 +00:00
542 lines
14 KiB
Go
542 lines
14 KiB
Go
// Copyright 2013-2023 The Cobra Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package cobra
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import (
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"fmt"
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"strings"
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"testing"
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)
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func getCommand(args PositionalArgs, withValid bool) *Command {
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c := &Command{
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Use: "c",
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Args: args,
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Run: emptyRun,
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}
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if withValid {
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c.ValidArgs = []string{"one", "two", "three"}
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}
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return c
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}
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func expectSuccess(output string, err error, t *testing.T) {
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if output != "" {
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t.Errorf("Unexpected output: %v", output)
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}
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if err != nil {
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t.Fatalf("Unexpected error: %v", err)
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}
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}
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func validOnlyWithInvalidArgs(err error, t *testing.T) {
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if err == nil {
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t.Fatal("Expected an error")
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}
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got := err.Error()
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expected := `invalid argument "a" for "c"`
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if got != expected {
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t.Errorf("Expected: %q, got: %q", expected, got)
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}
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}
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func noArgsWithArgs(err error, t *testing.T, arg string) {
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if err == nil {
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t.Fatal("Expected an error")
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}
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got := err.Error()
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expected := `unknown command "` + arg + `" for "c"`
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if got != expected {
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t.Errorf("Expected: %q, got: %q", expected, got)
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}
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}
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func minimumNArgsWithLessArgs(err error, t *testing.T) {
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if err == nil {
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t.Fatal("Expected an error")
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}
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got := err.Error()
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expected := "requires at least 2 arg(s), only received 1"
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if got != expected {
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t.Fatalf("Expected %q, got %q", expected, got)
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}
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}
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func maximumNArgsWithMoreArgs(err error, t *testing.T) {
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if err == nil {
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t.Fatal("Expected an error")
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}
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got := err.Error()
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expected := "accepts at most 2 arg(s), received 3"
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if got != expected {
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t.Fatalf("Expected %q, got %q", expected, got)
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}
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}
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func exactArgsWithInvalidCount(err error, t *testing.T) {
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if err == nil {
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t.Fatal("Expected an error")
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}
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got := err.Error()
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expected := "accepts 2 arg(s), received 3"
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if got != expected {
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t.Fatalf("Expected %q, got %q", expected, got)
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}
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}
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func rangeArgsWithInvalidCount(err error, t *testing.T) {
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if err == nil {
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t.Fatal("Expected an error")
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}
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got := err.Error()
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expected := "accepts between 2 and 4 arg(s), received 1"
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if got != expected {
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t.Fatalf("Expected %q, got %q", expected, got)
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}
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}
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// NoArgs
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func TestNoArgs(t *testing.T) {
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c := getCommand(NoArgs, false)
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output, err := executeCommand(c)
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expectSuccess(output, err, t)
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}
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func TestNoArgs_WithArgs(t *testing.T) {
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c := getCommand(NoArgs, false)
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_, err := executeCommand(c, "one")
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noArgsWithArgs(err, t, "one")
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}
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func TestNoArgs_WithValid_WithArgs(t *testing.T) {
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c := getCommand(NoArgs, true)
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_, err := executeCommand(c, "one")
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noArgsWithArgs(err, t, "one")
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}
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func TestNoArgs_WithValid_WithInvalidArgs(t *testing.T) {
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c := getCommand(NoArgs, true)
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_, err := executeCommand(c, "a")
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noArgsWithArgs(err, t, "a")
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}
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func TestNoArgs_WithValidOnly_WithInvalidArgs(t *testing.T) {
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c := getCommand(MatchAll(OnlyValidArgs, NoArgs), true)
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_, err := executeCommand(c, "a")
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validOnlyWithInvalidArgs(err, t)
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}
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// OnlyValidArgs
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func TestOnlyValidArgs(t *testing.T) {
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c := getCommand(OnlyValidArgs, true)
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output, err := executeCommand(c, "one", "two")
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expectSuccess(output, err, t)
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}
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func TestOnlyValidArgs_WithInvalidArgs(t *testing.T) {
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c := getCommand(OnlyValidArgs, true)
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_, err := executeCommand(c, "a")
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validOnlyWithInvalidArgs(err, t)
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}
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// ArbitraryArgs
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func TestArbitraryArgs(t *testing.T) {
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c := getCommand(ArbitraryArgs, false)
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output, err := executeCommand(c, "a", "b")
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expectSuccess(output, err, t)
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}
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func TestArbitraryArgs_WithValid(t *testing.T) {
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c := getCommand(ArbitraryArgs, true)
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output, err := executeCommand(c, "one", "two")
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expectSuccess(output, err, t)
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}
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func TestArbitraryArgs_WithValid_WithInvalidArgs(t *testing.T) {
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c := getCommand(ArbitraryArgs, true)
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output, err := executeCommand(c, "a")
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expectSuccess(output, err, t)
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}
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func TestArbitraryArgs_WithValidOnly_WithInvalidArgs(t *testing.T) {
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c := getCommand(MatchAll(OnlyValidArgs, ArbitraryArgs), true)
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_, err := executeCommand(c, "a")
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validOnlyWithInvalidArgs(err, t)
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}
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// MinimumNArgs
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func TestMinimumNArgs(t *testing.T) {
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c := getCommand(MinimumNArgs(2), false)
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output, err := executeCommand(c, "a", "b", "c")
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expectSuccess(output, err, t)
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}
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func TestMinimumNArgs_WithValid(t *testing.T) {
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c := getCommand(MinimumNArgs(2), true)
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output, err := executeCommand(c, "one", "three")
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expectSuccess(output, err, t)
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}
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func TestMinimumNArgs_WithValid__WithInvalidArgs(t *testing.T) {
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c := getCommand(MinimumNArgs(2), true)
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output, err := executeCommand(c, "a", "b")
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expectSuccess(output, err, t)
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}
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func TestMinimumNArgs_WithValidOnly_WithInvalidArgs(t *testing.T) {
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c := getCommand(MatchAll(OnlyValidArgs, MinimumNArgs(2)), true)
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_, err := executeCommand(c, "a", "b")
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validOnlyWithInvalidArgs(err, t)
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}
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func TestMinimumNArgs_WithLessArgs(t *testing.T) {
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c := getCommand(MinimumNArgs(2), false)
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_, err := executeCommand(c, "a")
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minimumNArgsWithLessArgs(err, t)
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}
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func TestMinimumNArgs_WithLessArgs_WithValid(t *testing.T) {
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c := getCommand(MinimumNArgs(2), true)
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_, err := executeCommand(c, "one")
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minimumNArgsWithLessArgs(err, t)
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}
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func TestMinimumNArgs_WithLessArgs_WithValid_WithInvalidArgs(t *testing.T) {
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c := getCommand(MinimumNArgs(2), true)
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_, err := executeCommand(c, "a")
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minimumNArgsWithLessArgs(err, t)
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}
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func TestMinimumNArgs_WithLessArgs_WithValidOnly_WithInvalidArgs(t *testing.T) {
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c := getCommand(MatchAll(OnlyValidArgs, MinimumNArgs(2)), true)
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_, err := executeCommand(c, "a")
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validOnlyWithInvalidArgs(err, t)
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}
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// MaximumNArgs
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func TestMaximumNArgs(t *testing.T) {
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c := getCommand(MaximumNArgs(3), false)
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output, err := executeCommand(c, "a", "b")
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expectSuccess(output, err, t)
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}
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func TestMaximumNArgs_WithValid(t *testing.T) {
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c := getCommand(MaximumNArgs(2), true)
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output, err := executeCommand(c, "one", "three")
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expectSuccess(output, err, t)
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}
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func TestMaximumNArgs_WithValid_WithInvalidArgs(t *testing.T) {
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c := getCommand(MaximumNArgs(2), true)
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output, err := executeCommand(c, "a", "b")
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expectSuccess(output, err, t)
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}
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func TestMaximumNArgs_WithValidOnly_WithInvalidArgs(t *testing.T) {
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c := getCommand(MatchAll(OnlyValidArgs, MaximumNArgs(2)), true)
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_, err := executeCommand(c, "a", "b")
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validOnlyWithInvalidArgs(err, t)
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}
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func TestMaximumNArgs_WithMoreArgs(t *testing.T) {
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c := getCommand(MaximumNArgs(2), false)
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_, err := executeCommand(c, "a", "b", "c")
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maximumNArgsWithMoreArgs(err, t)
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}
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func TestMaximumNArgs_WithMoreArgs_WithValid(t *testing.T) {
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c := getCommand(MaximumNArgs(2), true)
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_, err := executeCommand(c, "one", "three", "two")
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maximumNArgsWithMoreArgs(err, t)
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}
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func TestMaximumNArgs_WithMoreArgs_WithValid_WithInvalidArgs(t *testing.T) {
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c := getCommand(MaximumNArgs(2), true)
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_, err := executeCommand(c, "a", "b", "c")
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maximumNArgsWithMoreArgs(err, t)
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}
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func TestMaximumNArgs_WithMoreArgs_WithValidOnly_WithInvalidArgs(t *testing.T) {
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c := getCommand(MatchAll(OnlyValidArgs, MaximumNArgs(2)), true)
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_, err := executeCommand(c, "a", "b", "c")
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validOnlyWithInvalidArgs(err, t)
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}
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// ExactArgs
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func TestExactArgs(t *testing.T) {
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c := getCommand(ExactArgs(3), false)
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output, err := executeCommand(c, "a", "b", "c")
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expectSuccess(output, err, t)
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}
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func TestExactArgs_WithValid(t *testing.T) {
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c := getCommand(ExactArgs(3), true)
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output, err := executeCommand(c, "three", "one", "two")
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expectSuccess(output, err, t)
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}
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func TestExactArgs_WithValid_WithInvalidArgs(t *testing.T) {
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c := getCommand(ExactArgs(3), true)
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output, err := executeCommand(c, "three", "a", "two")
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expectSuccess(output, err, t)
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}
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func TestExactArgs_WithValidOnly_WithInvalidArgs(t *testing.T) {
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c := getCommand(MatchAll(OnlyValidArgs, ExactArgs(3)), true)
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_, err := executeCommand(c, "three", "a", "two")
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validOnlyWithInvalidArgs(err, t)
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}
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func TestExactArgs_WithInvalidCount(t *testing.T) {
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c := getCommand(ExactArgs(2), false)
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_, err := executeCommand(c, "a", "b", "c")
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exactArgsWithInvalidCount(err, t)
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}
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func TestExactArgs_WithInvalidCount_WithValid(t *testing.T) {
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c := getCommand(ExactArgs(2), true)
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_, err := executeCommand(c, "three", "one", "two")
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exactArgsWithInvalidCount(err, t)
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}
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func TestExactArgs_WithInvalidCount_WithValid_WithInvalidArgs(t *testing.T) {
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c := getCommand(ExactArgs(2), true)
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_, err := executeCommand(c, "three", "a", "two")
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exactArgsWithInvalidCount(err, t)
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}
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func TestExactArgs_WithInvalidCount_WithValidOnly_WithInvalidArgs(t *testing.T) {
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c := getCommand(MatchAll(OnlyValidArgs, ExactArgs(2)), true)
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_, err := executeCommand(c, "three", "a", "two")
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validOnlyWithInvalidArgs(err, t)
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}
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// RangeArgs
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func TestRangeArgs(t *testing.T) {
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c := getCommand(RangeArgs(2, 4), false)
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output, err := executeCommand(c, "a", "b", "c")
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expectSuccess(output, err, t)
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}
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func TestRangeArgs_WithValid(t *testing.T) {
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c := getCommand(RangeArgs(2, 4), true)
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output, err := executeCommand(c, "three", "one", "two")
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expectSuccess(output, err, t)
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}
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func TestRangeArgs_WithValid_WithInvalidArgs(t *testing.T) {
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c := getCommand(RangeArgs(2, 4), true)
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output, err := executeCommand(c, "three", "a", "two")
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expectSuccess(output, err, t)
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}
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func TestRangeArgs_WithValidOnly_WithInvalidArgs(t *testing.T) {
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c := getCommand(MatchAll(OnlyValidArgs, RangeArgs(2, 4)), true)
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_, err := executeCommand(c, "three", "a", "two")
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validOnlyWithInvalidArgs(err, t)
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}
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func TestRangeArgs_WithInvalidCount(t *testing.T) {
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c := getCommand(RangeArgs(2, 4), false)
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_, err := executeCommand(c, "a")
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rangeArgsWithInvalidCount(err, t)
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}
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func TestRangeArgs_WithInvalidCount_WithValid(t *testing.T) {
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c := getCommand(RangeArgs(2, 4), true)
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_, err := executeCommand(c, "two")
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rangeArgsWithInvalidCount(err, t)
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}
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func TestRangeArgs_WithInvalidCount_WithValid_WithInvalidArgs(t *testing.T) {
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c := getCommand(RangeArgs(2, 4), true)
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_, err := executeCommand(c, "a")
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rangeArgsWithInvalidCount(err, t)
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}
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func TestRangeArgs_WithInvalidCount_WithValidOnly_WithInvalidArgs(t *testing.T) {
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c := getCommand(MatchAll(OnlyValidArgs, RangeArgs(2, 4)), true)
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_, err := executeCommand(c, "a")
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validOnlyWithInvalidArgs(err, t)
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}
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// Takes(No)Args
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func TestRootTakesNoArgs(t *testing.T) {
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rootCmd := &Command{Use: "root", Run: emptyRun}
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childCmd := &Command{Use: "child", Run: emptyRun}
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rootCmd.AddCommand(childCmd)
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_, err := executeCommand(rootCmd, "illegal", "args")
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if err == nil {
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t.Fatal("Expected an error")
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}
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got := err.Error()
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expected := `unknown command "illegal" for "root"`
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if !strings.Contains(got, expected) {
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t.Errorf("expected %q, got %q", expected, got)
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}
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}
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func TestRootTakesArgs(t *testing.T) {
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rootCmd := &Command{Use: "root", Args: ArbitraryArgs, Run: emptyRun}
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childCmd := &Command{Use: "child", Run: emptyRun}
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rootCmd.AddCommand(childCmd)
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_, err := executeCommand(rootCmd, "legal", "args")
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if err != nil {
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t.Errorf("Unexpected error: %v", err)
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}
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}
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func TestChildTakesNoArgs(t *testing.T) {
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rootCmd := &Command{Use: "root", Run: emptyRun}
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childCmd := &Command{Use: "child", Args: NoArgs, Run: emptyRun}
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rootCmd.AddCommand(childCmd)
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_, err := executeCommand(rootCmd, "child", "illegal", "args")
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if err == nil {
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t.Fatal("Expected an error")
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}
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got := err.Error()
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expected := `unknown command "illegal" for "root child"`
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if !strings.Contains(got, expected) {
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t.Errorf("expected %q, got %q", expected, got)
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}
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}
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func TestChildTakesArgs(t *testing.T) {
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rootCmd := &Command{Use: "root", Run: emptyRun}
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childCmd := &Command{Use: "child", Args: ArbitraryArgs, Run: emptyRun}
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rootCmd.AddCommand(childCmd)
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_, err := executeCommand(rootCmd, "child", "legal", "args")
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if err != nil {
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t.Fatalf("Unexpected error: %v", err)
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}
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}
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func TestMatchAll(t *testing.T) {
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// Somewhat contrived example check that ensures there are exactly 3
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// arguments, and each argument is exactly 2 bytes long.
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pargs := MatchAll(
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ExactArgs(3),
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func(cmd *Command, args []string) error {
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for _, arg := range args {
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if len([]byte(arg)) != 2 {
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return fmt.Errorf("expected to be exactly 2 bytes long")
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}
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}
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return nil
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},
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)
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testCases := map[string]struct {
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args []string
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fail bool
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}{
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"happy path": {
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[]string{"aa", "bb", "cc"},
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false,
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},
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"incorrect number of args": {
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[]string{"aa", "bb", "cc", "dd"},
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true,
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},
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"incorrect number of bytes in one arg": {
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[]string{"aa", "bb", "abc"},
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true,
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},
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}
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rootCmd := &Command{Use: "root", Args: pargs, Run: emptyRun}
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for name, tc := range testCases {
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t.Run(name, func(t *testing.T) {
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_, err := executeCommand(rootCmd, tc.args...)
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if err != nil && !tc.fail {
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t.Errorf("unexpected: %v\n", err)
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}
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if err == nil && tc.fail {
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t.Errorf("expected error")
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}
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})
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}
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}
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// DEPRECATED
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func TestExactValidArgs(t *testing.T) {
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c := getCommand(ExactValidArgs(3), true)
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output, err := executeCommand(c, "three", "one", "two")
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expectSuccess(output, err, t)
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}
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func TestExactValidArgs_WithInvalidCount(t *testing.T) {
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c := getCommand(ExactValidArgs(2), false)
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_, err := executeCommand(c, "three", "one", "two")
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exactArgsWithInvalidCount(err, t)
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}
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func TestExactValidArgs_WithInvalidCount_WithInvalidArgs(t *testing.T) {
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c := getCommand(ExactValidArgs(2), true)
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_, err := executeCommand(c, "three", "a", "two")
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exactArgsWithInvalidCount(err, t)
|
|
}
|
|
|
|
func TestExactValidArgs_WithInvalidArgs(t *testing.T) {
|
|
c := getCommand(ExactValidArgs(2), true)
|
|
_, err := executeCommand(c, "three", "a")
|
|
validOnlyWithInvalidArgs(err, t)
|
|
}
|
|
|
|
// This test make sure we keep backwards-compatibility with respect
|
|
// to the legacyArgs() function.
|
|
// It makes sure the root command accepts arguments if it does not have
|
|
// sub-commands.
|
|
func TestLegacyArgsRootAcceptsArgs(t *testing.T) {
|
|
rootCmd := &Command{Use: "root", Args: nil, Run: emptyRun}
|
|
|
|
_, err := executeCommand(rootCmd, "somearg")
|
|
if err != nil {
|
|
t.Fatalf("Unexpected error: %v", err)
|
|
}
|
|
}
|
|
|
|
// This test make sure we keep backwards-compatibility with respect
|
|
// to the legacyArgs() function.
|
|
// It makes sure a sub-command accepts arguments and further sub-commands
|
|
func TestLegacyArgsSubcmdAcceptsArgs(t *testing.T) {
|
|
rootCmd := &Command{Use: "root", Args: nil, Run: emptyRun}
|
|
childCmd := &Command{Use: "child", Args: nil, Run: emptyRun}
|
|
grandchildCmd := &Command{Use: "grandchild", Args: nil, Run: emptyRun}
|
|
rootCmd.AddCommand(childCmd)
|
|
childCmd.AddCommand(grandchildCmd)
|
|
|
|
_, err := executeCommand(rootCmd, "child", "somearg")
|
|
if err != nil {
|
|
t.Fatalf("Unexpected error: %v", err)
|
|
}
|
|
}
|