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|
package cli
import (
"strings"
"testing"
"github.com/stretchr/testify/assert"
)
func newCommand() *Command {
return &Command{
MutuallyExclusiveFlags: []MutuallyExclusiveFlags{
{
Flags: [][]Flag{
{
&Int64Flag{
Name: "i",
},
&StringFlag{
Name: "s",
Sources: EnvVars("S_VAR"),
},
&BoolWithInverseFlag{
Name: "b",
},
},
{
&Int64Flag{
Name: "t",
Aliases: []string{"ai"},
Sources: EnvVars("T_VAR"),
},
},
},
},
},
}
}
func TestFlagMutuallyExclusiveFlags(t *testing.T) {
tests := []struct {
name string
args []string
errStr string
required bool
envs map[string]string
}{
{
name: "simple",
},
{
name: "set one flag",
args: []string{"--i", "10"},
},
{
name: "set both flags",
args: []string{"--i", "11", "--ai", "12"},
errStr: "option i cannot be set along with option ai",
},
{
name: "required none set",
required: true,
errStr: "one of these flags needs to be provided",
},
{
name: "required one set",
args: []string{"--i", "10"},
required: true,
},
{
name: "required both set",
args: []string{"--i", "11", "--ai", "12"},
errStr: "option i cannot be set along with option ai",
required: true,
},
{
name: "set env var",
required: true,
envs: map[string]string{
"S_VAR": "some",
},
},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
if test.envs != nil {
for k, v := range test.envs {
t.Setenv(k, v)
}
}
cmd := newCommand()
cmd.MutuallyExclusiveFlags[0].Required = test.required
err := cmd.Run(buildTestContext(t), append([]string{"foo"}, test.args...))
if test.errStr == "" {
assert.NoError(t, err)
return
}
if err == nil {
t.Error("Expected mutual exclusion error")
return
}
switch err.(type) {
case (*mutuallyExclusiveGroup), (*mutuallyExclusiveGroupRequiredFlag):
if !strings.Contains(err.Error(), test.errStr) {
t.Logf("Invalid error string %v", err)
}
default:
t.Errorf("got invalid error type %T", err)
}
})
}
}
|
