291c97ed0b
- pkg/output/formatter.go: Formatter interface, Options, Registry with Register/Get/Names, ErrUnknownFormat sentinel - pkg/output/colors.go: IsTTY + ColorsEnabled honoring NO_COLOR - Promote github.com/mattn/go-isatty to direct dependency - Unit tests cover registry round-trip, unknown lookup, sorted Names, non-TTY buffer, NO_COLOR override Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
38 lines
968 B
Go
38 lines
968 B
Go
package output
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import (
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"bytes"
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"testing"
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"github.com/stretchr/testify/assert"
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)
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func TestColorsEnabled_BufferIsNotTTY(t *testing.T) {
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t.Setenv("NO_COLOR", "")
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// Explicitly unset NO_COLOR so the non-TTY branch is exercised.
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t.Setenv("NO_COLOR", "")
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assert.False(t, ColorsEnabled(&bytes.Buffer{}), "bytes.Buffer must never be considered a TTY")
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}
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func TestColorsEnabled_NoColorEnvForcesOff(t *testing.T) {
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t.Setenv("NO_COLOR", "1")
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assert.False(t, ColorsEnabled(&bytes.Buffer{}))
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}
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func TestColorsEnabled_NilWriterSafe(t *testing.T) {
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t.Setenv("NO_COLOR", "")
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// A nil *os.File should return false, not panic.
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var f *nilWriter
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assert.False(t, ColorsEnabled(f))
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}
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// nilWriter is a typed-nil io.Writer used to verify ColorsEnabled does not
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// panic when passed a non-*os.File writer.
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type nilWriter struct{}
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func (*nilWriter) Write(p []byte) (int, error) { return len(p), nil }
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func TestIsTTY_NilFile(t *testing.T) {
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assert.False(t, IsTTY(nil))
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}
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