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usage_test.go
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package main
import (
"os"
"testing"
"github.com/stretchr/testify/assert"
)
func TestUsage_EmptyCommands(t *testing.T) {
u := usageFixture()
u.commands = [][]string{}
expected := `
test
this is a fixture
USAGE
ilc config.yaml subcommand [inputs]
INPUTS
-c c input
-d d input
`
assert.Equal(t, expected, u.String(), "Usage.String() should not include entrypoint")
}
func TestUsage_EmptyInputs(t *testing.T) {
u := usageFixture()
u.inputs = [][]string{}
expected := `
test
this is a fixture
USAGE
ilc config.yaml subcommand <commands>
COMMANDS
a, aa a subcommand
b b subcommand
`
assert.Equal(t, expected, u.String(), "Usage.String() should not include entrypoint")
}
func TestUsage_Entrypoint_Empty(t *testing.T) {
u := usageFixture()
u.Entrypoint = []string{}
expected := `
test
this is a fixture
USAGE
<config> <commands> [inputs]
COMMANDS
a, aa a subcommand
b b subcommand
INPUTS
-c c input
-d d input
`
assert.Equal(t, expected, u.String(), "Usage.String() should not include entrypoint")
}
func TestUsage_Entrypoint_One(t *testing.T) {
u := usageFixture()
u.Entrypoint = []string{"ilc"}
expected := `
test
this is a fixture
USAGE
ilc <config> <commands> [inputs]
COMMANDS
a, aa a subcommand
b b subcommand
INPUTS
-c c input
-d d input
`
assert.Equal(t, expected, u.String(), "Usage.String() should not include entrypoint")
}
func TestUsage_Entrypoint_Two(t *testing.T) {
u := usageFixture()
u.Entrypoint = []string{"ilc", "config.yaml"}
expected := `
test
this is a fixture
USAGE
ilc config.yaml <commands> [inputs]
COMMANDS
a, aa a subcommand
b b subcommand
INPUTS
-c c input
-d d input
`
assert.Equal(t, expected, u.String(), "Usage.String() should not include entrypoint")
}
func TestUsage_Entrypoint_Many(t *testing.T) {
u := usageFixture()
u.Entrypoint = []string{"ilc", "config.yaml", "command", "subcommand"}
expected := `
test
this is a fixture
USAGE
ilc config.yaml command subcommand <commands> [inputs]
COMMANDS
a, aa a subcommand
b b subcommand
INPUTS
-c c input
-d d input
`
assert.Equal(t, expected, u.String(), "Usage.String() should not include entrypoint")
}
func TestUsage_Title_Blank(t *testing.T) {
u := usageFixture()
u.Title = ""
expected := `
this is a fixture
USAGE
ilc config.yaml subcommand <commands> [inputs]
COMMANDS
a, aa a subcommand
b b subcommand
INPUTS
-c c input
-d d input
`
assert.Equal(t, expected, u.String(), "Usage.String() should not include entrypoint")
}
func TestUsage_Description_Blank(t *testing.T) {
u := usageFixture()
u.Description = ""
expected := `
test
USAGE
ilc config.yaml subcommand <commands> [inputs]
COMMANDS
a, aa a subcommand
b b subcommand
INPUTS
-c c input
-d d input
`
assert.Equal(t, expected, u.String(), "Usage.String() should not include entrypoint")
}
func usageFixture() Usage {
commands := []ConfigCommand{
{Name: "a", Description: "a subcommand", Aliases: []string{"aa"}},
{Name: "b", Description: "b subcommand"},
}
inputs := []ConfigInput{
{Name: "c", Description: "c input"},
{Name: "d", Description: "d input"},
}
u := NewUsage(os.Stdout).ImportCommands(commands).ImportInputs(inputs)
u.Entrypoint = []string{"ilc", "config.yaml", "subcommand"}
u.Title = "test"
u.Description = "this is a fixture"
return u
}