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https://github.com/spf13/cobra
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args_test: add helper functions (#1426)
* args_test: add helper function expectSuccess * args_test: add helper function getCommand * args_test: add additional helper functions * noArgsWithArgs * validWithInvalidArgs * minimumNArgsWithLessArgs * maximumNArgsWithMoreArgs * exactArgsWithInvalidCount * rangeArgsWithInvalidCount
This commit is contained in:
Unai Martinez-Corral
GitHub
parent
62a72cdd0f
commit
9e1d6f1c2a
290
args_test.go
290
args_test.go
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@ -5,26 +5,42 @@ import (
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"testing"
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)
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func TestNoArgs(t *testing.T) {
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c := &Command{Use: "c", Args: NoArgs, Run: emptyRun}
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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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output, err := executeCommand(c)
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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 string: %v", 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 TestNoArgsWithArgs(t *testing.T) {
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c := &Command{Use: "c", Args: NoArgs, Run: emptyRun}
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_, err := executeCommand(c, "illegal")
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func validWithInvalidArgs(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) {
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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 "c"`
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if got != expected {
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@ -32,73 +48,10 @@ func TestNoArgsWithArgs(t *testing.T) {
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}
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}
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func TestOnlyValidArgs(t *testing.T) {
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c := &Command{
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Use: "c",
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Args: OnlyValidArgs,
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ValidArgs: []string{"one", "two"},
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Run: emptyRun,
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}
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output, err := executeCommand(c, "one", "two")
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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 TestOnlyValidArgsWithInvalidArgs(t *testing.T) {
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c := &Command{
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Use: "c",
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Args: OnlyValidArgs,
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ValidArgs: []string{"one", "two"},
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Run: emptyRun,
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}
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_, err := executeCommand(c, "three")
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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 := `invalid argument "three" 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 TestArbitraryArgs(t *testing.T) {
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c := &Command{Use: "c", Args: ArbitraryArgs, Run: emptyRun}
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output, err := executeCommand(c, "a", "b")
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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.Errorf("Unexpected error: %v", err)
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}
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}
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func TestMinimumNArgs(t *testing.T) {
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c := &Command{Use: "c", Args: MinimumNArgs(2), Run: emptyRun}
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output, err := executeCommand(c, "a", "b", "c")
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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.Errorf("Unexpected error: %v", err)
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}
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}
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func TestMinimumNArgsWithLessArgs(t *testing.T) {
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c := &Command{Use: "c", Args: MinimumNArgs(2), Run: emptyRun}
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_, err := executeCommand(c, "a")
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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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@ -106,25 +59,10 @@ func TestMinimumNArgsWithLessArgs(t *testing.T) {
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}
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}
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func TestMaximumNArgs(t *testing.T) {
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c := &Command{Use: "c", Args: MaximumNArgs(3), Run: emptyRun}
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output, err := executeCommand(c, "a", "b")
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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.Errorf("Unexpected error: %v", err)
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}
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}
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func TestMaximumNArgsWithMoreArgs(t *testing.T) {
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c := &Command{Use: "c", Args: MaximumNArgs(2), Run: emptyRun}
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_, err := executeCommand(c, "a", "b", "c")
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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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@ -132,25 +70,10 @@ func TestMaximumNArgsWithMoreArgs(t *testing.T) {
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}
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}
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func TestExactArgs(t *testing.T) {
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c := &Command{Use: "c", Args: ExactArgs(3), Run: emptyRun}
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output, err := executeCommand(c, "a", "b", "c")
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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.Errorf("Unexpected error: %v", err)
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}
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}
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func TestExactArgsWithInvalidCount(t *testing.T) {
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c := &Command{Use: "c", Args: ExactArgs(2), Run: emptyRun}
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_, err := executeCommand(c, "a", "b", "c")
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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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@ -158,71 +81,10 @@ func TestExactArgsWithInvalidCount(t *testing.T) {
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}
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}
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func TestExactValidArgs(t *testing.T) {
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c := &Command{Use: "c", Args: ExactValidArgs(3), ValidArgs: []string{"a", "b", "c"}, Run: emptyRun}
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output, err := executeCommand(c, "a", "b", "c")
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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.Errorf("Unexpected error: %v", err)
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}
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}
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func TestExactValidArgsWithInvalidCount(t *testing.T) {
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c := &Command{Use: "c", Args: ExactValidArgs(2), Run: emptyRun}
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_, err := executeCommand(c, "a", "b", "c")
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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 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 TestExactValidArgsWithInvalidArgs(t *testing.T) {
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c := &Command{
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Use: "c",
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Args: ExactValidArgs(1),
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ValidArgs: []string{"one", "two"},
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Run: emptyRun,
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}
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_, err := executeCommand(c, "three")
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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 "three" 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 TestRangeArgs(t *testing.T) {
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c := &Command{Use: "c", Args: RangeArgs(2, 4), Run: emptyRun}
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output, err := executeCommand(c, "a", "b", "c")
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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.Errorf("Unexpected error: %v", err)
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}
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}
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func TestRangeArgsWithInvalidCount(t *testing.T) {
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c := &Command{Use: "c", Args: RangeArgs(2, 4), Run: emptyRun}
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_, err := executeCommand(c, "a")
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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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@ -230,6 +92,102 @@ func TestRangeArgsWithInvalidCount(t *testing.T) {
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}
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}
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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 TestNoArgsWithArgs(t *testing.T) {
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c := getCommand(NoArgs, false)
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_, err := executeCommand(c, "illegal")
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noArgsWithArgs(err, t)
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}
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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 TestOnlyValidArgsWithInvalidArgs(t *testing.T) {
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c := getCommand(OnlyValidArgs, true)
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_, err := executeCommand(c, "a")
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validWithInvalidArgs(err, t)
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}
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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 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 TestMinimumNArgsWithLessArgs(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 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 TestMaximumNArgsWithMoreArgs(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 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 TestExactArgsWithInvalidCount(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 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 TestExactValidArgsWithInvalidCount(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 TestExactValidArgsWithInvalidArgs(t *testing.T) {
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c := getCommand(ExactValidArgs(3), true)
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_, err := executeCommand(c, "three", "a", "two")
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validWithInvalidArgs(err, t)
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}
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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 TestRangeArgsWithInvalidCount(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 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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