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// Copyright 2013 Canonical Ltd.
// Licensed under the LGPLv3, see LICENSE file for details.
package cmd_test
import (
"fmt"
"io/ioutil"
"github.com/juju/gnuflag"
"github.com/juju/testing"
gc "gopkg.in/check.v1"
"github.com/juju/cmd/v3"
)
type ArgsSuite struct {
testing.LoggingSuite
}
var _ = gc.Suite(&ArgsSuite{})
func (*ArgsSuite) TestFlagsUsage(c *gc.C) {
for i, test := range []struct {
message string
defaultValue []string
args []string
expectedValue []string
}{{
message: "nil default and no arg",
}, {
message: "default value and not set by args",
defaultValue: []string{"foo", "bar"},
expectedValue: []string{"foo", "bar"},
}, {
message: "no value set by args",
args: []string{"--value", "foo,bar"},
expectedValue: []string{"foo", "bar"},
}, {
message: "default value and set by args",
defaultValue: []string{"omg"},
args: []string{"--value", "foo,bar"},
expectedValue: []string{"foo", "bar"},
}} {
c.Log(fmt.Sprintf("%v: %s", i, test.message))
f := gnuflag.NewFlagSet("test", gnuflag.ContinueOnError)
f.SetOutput(ioutil.Discard)
var value []string
f.Var(cmd.NewStringsValue(test.defaultValue, &value), "value", "help")
err := f.Parse(false, test.args)
c.Check(err, gc.IsNil)
c.Check(value, gc.DeepEquals, test.expectedValue)
}
}
func (*ArgsSuite) TestNewStringsValue(c *gc.C) {
for i, test := range []struct {
message string
defaultValue []string
}{{
message: "null default",
}, {
message: "empty default",
defaultValue: []string{},
}, {
message: "single value",
defaultValue: []string{"foo"},
}, {
message: "multiple values",
defaultValue: []string{"foo", "bar", "baz"},
}} {
c.Log(fmt.Sprintf("%v: %s", i, test.message))
var underlyingValue []string
_ = cmd.NewStringsValue(test.defaultValue, &underlyingValue)
c.Assert(underlyingValue, gc.DeepEquals, test.defaultValue)
}
}
func (*ArgsSuite) TestSet(c *gc.C) {
for i, test := range []struct {
message string
arg string
expected []string
}{{
message: "empty",
expected: []string{""},
}, {
message: "just whitespace",
arg: " ",
expected: []string{" "},
}, {
message: "whitespace and comma",
arg: " , ",
expected: []string{" ", " "},
}, {
message: "single value",
arg: "foo",
expected: []string{"foo"},
}, {
message: "single value with comma",
arg: "foo,",
expected: []string{"foo", ""},
}, {
message: "single value with whitespace",
arg: " foo ",
expected: []string{" foo "},
}, {
message: "multiple values",
arg: "foo,bar,baz",
expected: []string{"foo", "bar", "baz"},
}, {
message: "multiple values with spaces",
arg: "foo, bar, baz",
expected: []string{"foo", " bar", " baz"},
}} {
c.Log(fmt.Sprintf("%v: %s", i, test.message))
var result []string
value := cmd.NewStringsValue(nil, &result)
error := value.Set(test.arg)
c.Check(error, gc.IsNil)
c.Check(result, gc.DeepEquals, test.expected)
}
}
func (*ArgsSuite) TestString(c *gc.C) {
for i, test := range []struct {
message string
target []string
expected string
}{{
message: "null",
expected: "",
}, {
message: "empty",
target: []string{},
expected: "",
}, {
message: "single value",
target: []string{"foo"},
expected: "foo",
}, {
message: "multiple values",
target: []string{"foo", "bar", "baz"},
expected: "foo,bar,baz",
}} {
c.Log(fmt.Sprintf("%v: %s", i, test.message))
var temp []string
value := cmd.NewStringsValue(test.target, &temp)
c.Assert(value.String(), gc.Equals, test.expected)
}
}
func (*ArgsSuite) TestAppendStringsUsage(c *gc.C) {
for i, test := range []struct {
message string
args []string
expectedValue []string
}{{
message: "no args",
}, {
message: "value set by args",
args: []string{"--value", "foo", "--value=bar"},
expectedValue: []string{"foo", "bar"},
}} {
c.Log(fmt.Sprintf("%v: %s", i, test.message))
f := gnuflag.NewFlagSet("test", gnuflag.ContinueOnError)
f.SetOutput(ioutil.Discard)
var value []string
f.Var(cmd.NewAppendStringsValue(&value), "value", "help")
err := f.Parse(false, test.args)
c.Check(err, gc.IsNil)
c.Check(value, gc.DeepEquals, test.expectedValue)
}
}
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