dart-sass/test/dart_api/value/function_test.dart
Natalie Weizenbaum 028b2f6a01 Add a map.deep-merge() function (#1077) (#1080)
This also adds a Value.tryMap() function, which was useful for
implementing this and may be more generally useful to users as well.

See sass/sass#2836
See sass/sass-spec#1560
2020-09-15 16:25:49 -07:00

51 lines
1.5 KiB
Dart

// Copyright 2018 Google Inc. Use of this source code is governed by an
// MIT-style license that can be found in the LICENSE file or at
// https://opensource.org/licenses/MIT.
@TestOn("vm")
import 'package:test/test.dart';
import 'package:sass/sass.dart';
import 'utils.dart';
void main() {
group("a function value", () {
SassFunction value;
setUp(() => value = parseValue("get-function('red')") as SassFunction);
test("has a callable with the given name", () {
expect(value.callable.name, equals("red"));
});
test("is a function", () {
expect(value.assertFunction(), equals(value));
});
test("equals the same function", () {
expect(value, equalsWithHash(parseValue("get-function('red')")));
});
test("isn't any other type", () {
expect(value.assertBoolean, throwsSassScriptException);
expect(value.assertColor, throwsSassScriptException);
expect(value.assertMap, throwsSassScriptException);
expect(value.tryMap(), isNull);
expect(value.assertNumber, throwsSassScriptException);
expect(value.assertString, throwsSassScriptException);
});
});
test("can return a new function", () {
var css = compileString("a {b: call(foo(), 12)}", functions: [
Callable("foo", "", (_) {
return SassFunction(Callable("bar", r"$arg",
(arguments) => SassNumber(arguments[0].assertNumber().value + 1)));
})
]);
expect(css, equalsIgnoringWhitespace("a { b: 13; }"));
});
}