package highlight

import "testing"

func TestGetSyntaxByFilename(t *testing.T) {
	var s *Syntax = nil

	t.Run("returns nil on empty filename", func(t *testing.T) {
		got := GetSyntaxByFilename("")
		want := s

		if got != want {
			t.Errorf("got %q want 'nil'", got.FileType)
		}
	})

	t.Run("returns nil on undefined file type", func(t *testing.T) {
		got := GetSyntaxByFilename("foo.bar")
		want := s

		if got != want {
			t.Errorf("got %q want 'nil'", got.FileType)
		}
	})

	t.Run("returns c on .c file", func(t *testing.T) {
		got := GetSyntaxByFilename("kilo.c")
		want := "c"

		if got.FileType != want {
			t.Errorf("got %q want %q", got.FileType, want)
		}
	})
}