| <!doctype html> |
| <meta charset="utf-8"> |
| <title>Adding Two Numeric Types</title> |
| <link rel="help" href="https://drafts.css-houdini.org/css-typed-om-1/#add-two-types"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="resources/testhelper.js"></script> |
| <body> |
| <div id="log"> |
| <script> |
| 'use strict'; |
| |
| test(() => { |
| const a = new CSSUnitValue(0, 'number'); |
| const b = new CSSUnitValue(0, 'px'); |
| assert_throws_js(TypeError, () => new CSSMathSum(a, b)); |
| }, 'Adding two types with different non-null percent hints throws TypeError'); |
| |
| test(() => { |
| const a = new CSSUnitValue(0, 'px'); |
| const b = new CSSUnitValue(0, 'px'); |
| const result = new CSSMathSum(a, b); |
| assert_numeric_type_equals(result.type(), { length: 1 }); |
| }, 'Adding two types with the same nonzero values returns same type'); |
| |
| test(() => { |
| const a = new CSSUnitValue(0, 'number'); |
| const b = new CSSUnitValue(0, 'number'); |
| const result = new CSSMathSum(a, b); |
| assert_numeric_type_equals(result.type(), { }); |
| }, 'Adding two types with empty maps with returns empty map'); |
| |
| test(() => { |
| const a = new CSSUnitValue(0, 'px'); |
| const b = new CSSUnitValue(0, 'percent'); |
| const result = new CSSMathSum(a, b); |
| assert_numeric_type_equals(result.type(), { length: 1, percentHint: 'length' }); |
| }, 'Adding a type with percent returns type with percent hint'); |
| |
| test(() => { |
| const a = new CSSMathProduct(new CSSUnitValue(0, 'px'), new CSSUnitValue(0, 'px')); |
| const b = new CSSUnitValue(0, 'percent'); |
| assert_throws_js(TypeError, () => new CSSMathSum(a, b)); |
| }, 'Adding a type with percent 2 returns type with percent hint throws TypeError'); |
| |
| test(() => { |
| const a = new CSSMathSum(new CSSUnitValue(0, 'px'), new CSSUnitValue(0, 'percent')); |
| const b = new CSSUnitValue(0, 'px'); |
| const result = new CSSMathSum(a, b); |
| assert_numeric_type_equals(result.type(), { length: 1, percentHint: 'length' }); |
| }, 'Adding a type with a percent hint returns a type with the percent hint'); |
| |
| test(() => { |
| const a = new CSSMathSum(new CSSUnitValue(0, 'px'), new CSSUnitValue(0, 'percent')); |
| const b = new CSSMathSum(new CSSUnitValue(0, 'px'), new CSSUnitValue(0, 'percent')); |
| const result = new CSSMathSum(a, b); |
| assert_numeric_type_equals(result.type(), { length: 1, percentHint: 'length' }); |
| }, 'Adding two types with the same percent hint returns a type with the percent hint'); |
| |
| </script> |
