Function TestValidateFlagGroups

flag_groups_test.go:22–195

(t *testing.T)

)

func TestValidateFlagGroups(t *testing.T) {
	getCmd := func() *Command {
		c := &Command{
			Use: "testcmd",
			Run: func(cmd *Command, args []string) {
			}}
		// Define lots of flags to utilize for testing.
		for _, v := range []string{"a", "b", "c", "d"} {
			c.Flags().String(v, "", "")
		}
		for _, v := range []string{"e", "f", "g"} {
			c.PersistentFlags().String(v, "", "")
		}
		subC := &Command{
			Use: "subcmd",
			Run: func(cmd *Command, args []string) {
			}}
		subC.Flags().String("subonly", "", "")
		c.AddCommand(subC)
		return c
	}

	// Each test case uses a unique command from the function above.
	testcases := []struct {
		desc                        string
		flagGroupsRequired          []string
		flagGroupsOneRequired       []string
		flagGroupsExclusive         []string
		subCmdFlagGroupsRequired    []string
		subCmdFlagGroupsOneRequired []string
		subCmdFlagGroupsExclusive   []string
		args                        []string
		expectErr                   string
	}{
		{
			desc: "No flags no problem",
		}, {
			desc:                "No flags no problem even with conflicting groups",
			flagGroupsRequired:  []string{"a b"},
			flagGroupsExclusive: []string{"a b"},
		}, {
			desc:               "Required flag group not satisfied",
			flagGroupsRequired: []string{"a b c"},
			args:               []string{"--a=foo"},
			expectErr:          "if any flags in the group [a b c] are set they must all be set; missing [b c]",
		}, {
			desc:                  "One-required flag group not satisfied",
			flagGroupsOneRequired: []string{"a b"},
			args:                  []string{"--c=foo"},
			expectErr:             "at least one of the flags in the group [a b] is required",
		}, {
			desc:                "Exclusive flag group not satisfied",
			flagGroupsExclusive: []string{"a b c"},
			args:                []string{"--a=foo", "--b=foo"},
			expectErr:           "if any flags in the group [a b c] are set none of the others can be; [a b] were all set",
		}, {
			desc:               "Multiple required flag group not satisfied returns first error",
			flagGroupsRequired: []string{"a b c", "a d"},