package cli

import (
	"context"
	"io"
	"testing"
)

func TestCancelEventForContext_DeadlineMapsToTimeout(t *testing.T) {
	ctx, cancel := context.WithTimeout(context.Background(), 0)
	defer cancel()
	<-ctx.Done()
	got := cancelEventForContext(ctx.Err())
	if got != "timeout" {
		t.Fatalf("expected 'timeout', got %q", got)
	}
}

func TestCancelEventForContext_CanceledMapsToUserCancel(t *testing.T) {
	ctx, cancel := context.WithCancel(context.Background())
	cancel()
	<-ctx.Done()
	got := cancelEventForContext(ctx.Err())
	if got != "user-cancel" {
		t.Fatalf("expected 'user-cancel', got %q", got)
	}
}

func TestCancelEventForContext_NilError(t *testing.T) {
	got := cancelEventForContext(nil)
	if got != "context-done" {
		t.Fatalf("expected 'context-done', got %q", got)
	}
}

func TestCancelEventForContext_SiblingError(t *testing.T) {
	type customErr struct{ error }
	got := cancelEventForContext(customErr{io.EOF})
	if got != "context-done" {
		t.Fatalf("expected 'context-done', got %q", got)
	}
}