mirror of
https://github.com/danog/dart-sass.git
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475 lines
15 KiB
Dart
475 lines
15 KiB
Dart
// Copyright 2018 Google Inc. Use of this source code is governed by an
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// MIT-style license that can be found in the LICENSE file or at
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// https://opensource.org/licenses/MIT.
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import 'dart:math' as math;
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import 'package:test/test.dart';
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import 'package:sass/sass.dart';
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import 'utils.dart';
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void main() {
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group("a unitless integer", () {
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late SassNumber value;
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setUp(() => value = parseValue("123") as SassNumber);
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test("has the correct value", () {
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expect(value.value, equals(123));
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expect(value.value, const TypeMatcher<int>());
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});
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test("has no units", () {
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expect(value.numeratorUnits, isEmpty);
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expect(value.denominatorUnits, isEmpty);
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expect(value.hasUnits, isFalse);
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expect(value.hasUnit("px"), isFalse);
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expect(() => value.assertUnit("px"), throwsSassScriptException);
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value.assertNoUnits(); // Should not throw.
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});
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test("is an int", () {
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expect(value.isInt, isTrue);
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expect(value.asInt, equals(123));
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expect(value.assertInt(), equals(123));
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});
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test("can be coerced to unitless", () {
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expect(value.coerce([], []), equals(SassNumber.withUnits(123)));
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});
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test("can be coerced to any units", () {
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expect(
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value.coerce(["abc"], ["def"]),
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equals(SassNumber.withUnits(123,
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numeratorUnits: ["abc"], denominatorUnits: ["def"])));
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});
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test("can be converted to unitless", () {
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expect(value.convertToMatch(SassNumber(456)),
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equals(SassNumber.withUnits(123)));
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});
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test("can't be converted to a unit", () {
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expect(() => value.convertToMatch(SassNumber(456, "px")),
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throwsSassScriptException);
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});
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test("can coerce its value to unitless", () {
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expect(value.coerceValue([], []), equals(123));
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});
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test("can coerce its value to any units", () {
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expect(value.coerceValue(["abc"], ["def"]), equals(123));
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});
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test("can convert its value to unitless", () {
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expect(value.convertValueToMatch(SassNumber(456)), equals(123));
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});
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test("can't convert its value to any units", () {
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expect(() => value.convertValueToMatch(SassNumber(456, "px")),
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throwsSassScriptException);
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});
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test("is compatible with any unit", () {
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expect(value.compatibleWithUnit("px"), isTrue);
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});
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group("valueInRange()", () {
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test("returns its value within a given range", () {
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expect(value.valueInRange(0, 123), equals(123));
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expect(value.valueInRange(123, 123), equals(123));
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expect(value.valueInRange(123, 1000), equals(123));
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});
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test("rejects a value outside the range", () {
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expect(() => value.valueInRange(0, 122), throwsSassScriptException);
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expect(() => value.valueInRange(124, 1000), throwsSassScriptException);
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});
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});
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test("equals the same number", () {
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expect(value, equalsWithHash(SassNumber(123)));
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});
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test("equals the same number within precision tolerance", () {
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expect(
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value,
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equalsWithHash(
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SassNumber(123 + math.pow(10, -SassNumber.precision - 2))));
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expect(
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value,
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equalsWithHash(
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SassNumber(123 - math.pow(10, -SassNumber.precision - 2))));
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});
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test("doesn't equal a different number", () {
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expect(value, isNot(equals(SassNumber(124))));
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expect(value, isNot(equals(SassNumber(122))));
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expect(
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value,
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isNot(equals(
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SassNumber(123 + math.pow(10, -SassNumber.precision - 1)))));
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expect(
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value,
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isNot(equals(
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SassNumber(123 - math.pow(10, -SassNumber.precision - 1)))));
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});
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test("doesn't equal a number with units", () {
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expect(value, isNot(equals(SassNumber(123, "px"))));
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});
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test("is a number", () {
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expect(value.assertNumber(), equals(value));
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});
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test("isn't any other type", () {
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expect(value.assertBoolean, throwsSassScriptException);
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expect(value.assertColor, throwsSassScriptException);
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expect(value.assertFunction, throwsSassScriptException);
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expect(value.assertMap, throwsSassScriptException);
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expect(value.tryMap(), isNull);
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expect(value.assertString, throwsSassScriptException);
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});
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});
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group("a unitless double", () {
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late SassNumber value;
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setUp(() => value = parseValue("123.456") as SassNumber);
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test("has the correct value", () {
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expect(value.value, equals(123.456));
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});
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test("is not an int", () {
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expect(value.isInt, isFalse);
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expect(value.asInt, isNull);
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expect(value.assertInt, throwsSassScriptException);
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});
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});
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group("a unitless fuzzy integer", () {
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late SassNumber value;
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setUp(() => value = parseValue("123.000000000001") as SassNumber);
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test("has the correct value", () {
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expect(value.value, equals(123.000000000001));
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});
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test("is an int", () {
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expect(value.isInt, isTrue);
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expect(value.asInt, equals(123));
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expect(value.assertInt(), equals(123));
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});
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test("equals the same number", () {
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expect(
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value,
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equalsWithHash(
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SassNumber(123 + math.pow(10, -SassNumber.precision - 2))));
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});
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test("equals the same number within precision tolerance", () {
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expect(value, equalsWithHash(SassNumber(123)));
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expect(
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value,
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equalsWithHash(
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SassNumber(123 - math.pow(10, -SassNumber.precision - 2))));
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});
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group("valueInRange()", () {
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test("clamps within the given range", () {
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expect(value.valueInRange(0, 123), equals(123));
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expect(value.valueInRange(123, 123), equals(123));
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expect(value.valueInRange(123, 1000), equals(123));
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});
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test("rejects a value outside the range", () {
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expect(() => value.valueInRange(0, 122), throwsSassScriptException);
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expect(() => value.valueInRange(124, 1000), throwsSassScriptException);
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});
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});
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});
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group("an integer with a single numerator unit", () {
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late SassNumber value;
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setUp(() => value = parseValue("123px") as SassNumber);
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test("has that unit", () {
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expect(value.numeratorUnits, equals(["px"]));
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expect(value.hasUnits, isTrue);
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expect(value.hasUnit("px"), isTrue);
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value.assertUnit("px"); // Should not throw.
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expect(value.assertNoUnits, throwsSassScriptException);
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});
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test("has no other units", () {
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expect(value.denominatorUnits, isEmpty);
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expect(value.hasUnit("in"), isFalse);
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expect(() => value.assertUnit("in"), throwsSassScriptException);
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});
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test("can be coerced to unitless", () {
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expect(value.coerce([], []), equals(SassNumber(123)));
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});
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test("can be coerced to compatible units", () {
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expect(value.coerce(["px"], []), equals(value));
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expect(value.coerce(["in"], []), equals(SassNumber(1.28125, "in")));
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});
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test("can't be coerced to incompatible units", () {
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expect(() => value.coerce(["abc"], []), throwsSassScriptException);
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});
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test("can't be converted to unitless", () {
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expect(() => value.convertToMatch(SassNumber(456)),
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throwsSassScriptException);
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});
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test("can be converted to compatible units", () {
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expect(value.convertToMatch(SassNumber(456, "px")), equals(value));
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expect(value.convertToMatch(SassNumber(456, "in")),
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equals(SassNumber(1.28125, "in")));
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});
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test("can't be converted to incompatible units", () {
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expect(() => value.convertToMatch(SassNumber(456, "abc")),
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throwsSassScriptException);
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});
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test("can coerce its value to unitless", () {
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expect(value.coerceValue([], []), equals(123));
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});
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test("can coerce its value to compatible units", () {
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expect(value.coerceValue(["px"], []), equals(123));
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expect(value.coerceValue(["in"], []), equals(1.28125));
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});
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test("can't coerce its value to incompatible units", () {
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expect(() => value.coerceValue(["abc"], []), throwsSassScriptException);
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});
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test("can't convert its value to unitless", () {
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expect(() => value.convertValueToMatch(SassNumber(456)),
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throwsSassScriptException);
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});
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test("can convert its value to compatible units", () {
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expect(value.convertValueToMatch(SassNumber(456, "px")), equals(123));
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expect(value.convertValueToMatch(SassNumber(456, "in")), equals(1.28125));
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});
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test("can't convert its value to incompatible units", () {
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expect(() => value.convertValueToMatch(SassNumber(456, "abc")),
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throwsSassScriptException);
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});
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test("is compatible with the same unit", () {
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expect(value.compatibleWithUnit("px"), isTrue);
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});
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test("is compatible with a compatible unit", () {
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expect(value.compatibleWithUnit("in"), isTrue);
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});
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test("is incompatible with an incompatible unit", () {
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expect(value.compatibleWithUnit("abc"), isFalse);
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});
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test("equals the same number", () {
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expect(value, equalsWithHash(SassNumber(123, "px")));
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});
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test("equals an equivalent number", () {
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expect(value.hashCode, equals(SassNumber(1.28125, "in").hashCode));
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expect(value, equalsWithHash(SassNumber(1.28125, "in")));
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});
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test("doesn't equal a unitless number", () {
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expect(value, isNot(equals(SassNumber(123))));
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});
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test("doesn't equal a number with different units", () {
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expect(value, isNot(equals(SassNumber(123, "abc"))));
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expect(
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value,
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isNot(
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equals(SassNumber.withUnits(123, numeratorUnits: ["px", "px"]))));
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expect(
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value,
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isNot(equals(SassNumber.withUnits(123,
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numeratorUnits: ["px"], denominatorUnits: ["abc"]))));
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expect(value,
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isNot(equals(SassNumber.withUnits(123, denominatorUnits: ["px"]))));
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});
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});
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group("a number with numerator and denominator units", () {
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late SassNumber value;
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setUp(() => value = parseValue("math.div(123px, 5ms)") as SassNumber);
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test("has those units", () {
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expect(value.numeratorUnits, equals(["px"]));
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expect(value.denominatorUnits, equals(["ms"]));
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expect(value.hasUnits, isTrue);
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expect(value.assertNoUnits, throwsSassScriptException);
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});
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test("reports false for hasUnit()", () {
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// [hasUnit] and [assertUnit] only allow a single numerator unit.
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expect(value.hasUnit("px"), isFalse);
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expect(() => value.assertUnit("px"), throwsSassScriptException);
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});
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test("can be coerced to unitless", () {
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expect(value.coerce([], []), equals(SassNumber(24.6)));
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});
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test("can be coerced to compatible units", () {
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expect(value.coerce(["px"], ["ms"]), equals(value));
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expect(
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value.coerce(["in"], ["s"]),
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equals(SassNumber.withUnits(256.25,
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numeratorUnits: ["in"], denominatorUnits: ["s"])));
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});
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test("can coerce to match another number", () {
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expect(
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value.coerceToMatch(SassNumber.withUnits(456,
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numeratorUnits: ["in"], denominatorUnits: ["s"])),
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equals(SassNumber.withUnits(256.25,
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numeratorUnits: ["in"], denominatorUnits: ["s"])));
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});
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test("can't be coerced to incompatible units", () {
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expect(() => value.coerce(["abc"], []), throwsSassScriptException);
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});
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test("can't be converted to unitless", () {
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expect(() => value.convertToMatch(SassNumber(456)),
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throwsSassScriptException);
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});
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test("can be converted to compatible units", () {
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expect(
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value.convertToMatch(SassNumber.withUnits(456,
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numeratorUnits: ["px"], denominatorUnits: ["ms"])),
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equals(value));
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expect(
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value.convertToMatch(SassNumber.withUnits(456,
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numeratorUnits: ["in"], denominatorUnits: ["s"])),
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equals(SassNumber.withUnits(256.25,
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numeratorUnits: ["in"], denominatorUnits: ["s"])));
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});
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test("can coerce its value to unitless", () {
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expect(value.coerceValue([], []), equals(24.6));
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});
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test("can coerce its value to compatible units", () {
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expect(value.coerceValue(["px"], ["ms"]), equals(24.6));
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expect(value.coerceValue(["in"], ["s"]), equals(256.25));
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});
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test("can't coerce its value to incompatible units", () {
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expect(() => value.coerceValue(["abc"], []), throwsSassScriptException);
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});
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test("can't convert its value to unitless", () {
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expect(() => value.convertValueToMatch(SassNumber(456)),
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throwsSassScriptException);
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});
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test("can convert its value to compatible units", () {
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expect(
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value.convertValueToMatch(SassNumber.withUnits(456,
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numeratorUnits: ["px"], denominatorUnits: ["ms"])),
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equals(24.6));
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expect(
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value.convertValueToMatch(SassNumber.withUnits(456,
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numeratorUnits: ["in"], denominatorUnits: ["s"])),
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equals(256.25));
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});
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test("can't convert its value to incompatible units", () {
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expect(() => value.convertValueToMatch(SassNumber(456, "abc")),
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throwsSassScriptException);
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});
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test("is incompatible with the numerator unit", () {
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expect(value.compatibleWithUnit("px"), isFalse);
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});
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test("is incompatible with the denominator unit", () {
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expect(value.compatibleWithUnit("ms"), isFalse);
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});
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test("equals the same number", () {
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expect(
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value,
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equalsWithHash(SassNumber.withUnits(24.6,
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numeratorUnits: ["px"], denominatorUnits: ["ms"])));
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});
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test("equals an equivalent number", () {
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expect(
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value,
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equalsWithHash(SassNumber.withUnits(256.25,
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numeratorUnits: ["in"], denominatorUnits: ["s"])));
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});
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test("doesn't equal a unitless number", () {
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expect(value, isNot(equals(SassNumber(24.6))));
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});
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test("doesn't equal a number with different units", () {
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expect(value, isNot(equals(SassNumber(24.6, "px"))));
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expect(value,
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isNot(equals(SassNumber.withUnits(24.6, denominatorUnits: ["ms"]))));
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expect(
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value,
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isNot(equals(SassNumber.withUnits(24.6,
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numeratorUnits: ["ms"], denominatorUnits: ["px"]))));
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expect(
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value,
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isNot(equals(SassNumber.withUnits(24.6,
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numeratorUnits: ["in"], denominatorUnits: ["s"]))));
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});
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});
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group("new SassNumber()", () {
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test("can create a unitless number", () {
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var number = SassNumber(123.456);
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expect(number.value, equals(123.456));
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expect(number.hasUnits, isFalse);
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});
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test("can create a number with a numerator unit", () {
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var number = SassNumber(123.456, "px");
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expect(number.value, equals(123.456));
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expect(number.hasUnit('px'), isTrue);
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});
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});
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group("new SassNumber.withUnits()", () {
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test("can create a unitless number", () {
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var number = SassNumber.withUnits(123.456);
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expect(number.value, equals(123.456));
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expect(number.hasUnits, isFalse);
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});
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test("can create a number with units", () {
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var number = SassNumber.withUnits(123.456,
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numeratorUnits: ["px", "em"], denominatorUnits: ["ms", "kHz"]);
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expect(number.value, equals(123.456));
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expect(number.numeratorUnits, equals(["px", "em"]));
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expect(number.denominatorUnits, equals(["ms", "kHz"]));
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});
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});
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}
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