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https://github.com/chartjs/Chart.js.git
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090196c07c
The title plugin and scale title now accept lineHeight specified using unitless value (1.4), length ('1.4em' or '12px'), percentage ('200%') or keyword ('normal' === 1.2). The line height parsing has been refactored under the 'Chart.helpers.options' namespace. Also fix incorrect text positioning in the title plugin.
https://developer.mozilla.org/en-US/docs/Web/CSS/line-height
28 lines
1000 B
JavaScript
28 lines
1000 B
JavaScript
'use strict';
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describe('Chart.helpers.options', function() {
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var options = Chart.helpers.options;
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describe('toLineHeight', function() {
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it ('should support keyword values', function() {
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expect(options.toLineHeight('normal', 16)).toBe(16 * 1.2);
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});
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it ('should support unitless values', function() {
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expect(options.toLineHeight(1.4, 16)).toBe(16 * 1.4);
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expect(options.toLineHeight('1.4', 16)).toBe(16 * 1.4);
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});
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it ('should support length values', function() {
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expect(options.toLineHeight('42px', 16)).toBe(42);
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expect(options.toLineHeight('1.4em', 16)).toBe(16 * 1.4);
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});
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it ('should support percentage values', function() {
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expect(options.toLineHeight('140%', 16)).toBe(16 * 1.4);
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});
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it ('should fallback to default (1.2) for invalid values', function() {
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expect(options.toLineHeight(null, 16)).toBe(16 * 1.2);
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expect(options.toLineHeight(undefined, 16)).toBe(16 * 1.2);
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expect(options.toLineHeight('foobar', 16)).toBe(16 * 1.2);
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});
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});
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});
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