forked from ebhomengo/niki
77 lines
2.1 KiB
Go
77 lines
2.1 KiB
Go
package pflag
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import (
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"strings"
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"testing"
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)
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func TestBoolFunc(t *testing.T) {
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var count int
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fn := func(_ string) error {
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count++
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return nil
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}
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fset := NewFlagSet("test", ContinueOnError)
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fset.BoolFunc("func", "Callback function", fn)
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err := fset.Parse([]string{"--func", "--func=1", "--func=false"})
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if err != nil {
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t.Fatal("expected no error; got", err)
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}
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if count != 3 {
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t.Fatalf("expected 3 calls to the callback, got %d calls", count)
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}
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}
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func TestBoolFuncP(t *testing.T) {
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var count int
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fn := func(_ string) error {
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count++
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return nil
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}
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fset := NewFlagSet("test", ContinueOnError)
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fset.BoolFuncP("bfunc", "b", "Callback function", fn)
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err := fset.Parse([]string{"--bfunc", "--bfunc=0", "--bfunc=false", "-b", "-b=0"})
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if err != nil {
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t.Fatal("expected no error; got", err)
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}
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if count != 5 {
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t.Fatalf("expected 5 calls to the callback, got %d calls", count)
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}
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}
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func TestBoolFuncUsage(t *testing.T) {
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t.Run("regular func flag", func(t *testing.T) {
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// regular boolfunc flag:
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// expect to see '--flag1' followed by the usageMessage, and no mention of a default value
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fset := NewFlagSet("unittest", ContinueOnError)
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fset.BoolFunc("flag1", "usage message", func(s string) error { return nil })
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usage := fset.FlagUsagesWrapped(80)
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usage = strings.TrimSpace(usage)
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expected := "--flag1 usage message"
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if usage != expected {
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t.Fatalf("unexpected generated usage message\n expected: %s\n got: %s", expected, usage)
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}
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})
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t.Run("func flag with placeholder name", func(t *testing.T) {
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// func flag, with a placeholder name:
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// if usageMesage contains a placeholder, expect '--flag2 {placeholder}'; still expect no mention of a default value
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fset := NewFlagSet("unittest", ContinueOnError)
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fset.BoolFunc("flag2", "usage message with `name` placeholder", func(s string) error { return nil })
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usage := fset.FlagUsagesWrapped(80)
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usage = strings.TrimSpace(usage)
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expected := "--flag2 name usage message with name placeholder"
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if usage != expected {
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t.Fatalf("unexpected generated usage message\n expected: %s\n got: %s", expected, usage)
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}
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})
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}
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