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joplin/packages/renderer/htmlUtils.test.ts

100 lines
2.4 KiB
TypeScript

import htmlUtils, { extractHtmlBody, htmlDocIsImageOnly, removeWrappingParagraphAndTrailingEmptyElements } from './htmlUtils';
describe('htmlUtils', () => {
test('should strip off HTML', () => {
const testCases = [
[
'',
'',
],
[
'<b>test</b>',
'test',
],
[
'Joplin&circledR;',
'Joplin®',
],
[
'&lt;b&gttest&lt;/b&gt',
'&lt;b>test&lt;/b>',
],
];
for (const t of testCases) {
const [input, expected] = t;
const actual = htmlUtils.stripHtml(input);
expect(actual).toBe(expected);
}
});
test('should extract the HTML body', () => {
const testCases: [string, string][] = [
[
'Just <b>testing</b>',
'Just <b>testing</b>',
],
[
'',
'',
],
[
'<html><head></head><meta bla><body>Here is the body<img src="test.png"/></body></html>',
'Here is the body<img src="test.png"/>',
],
];
for (const [input, expected] of testCases) {
const actual = extractHtmlBody(input);
expect(actual).toBe(expected);
}
});
test('should tell if an HTML document is an image only', () => {
const testCases: [string, boolean][] = [
[
// This is the kind of HTML that's pasted when copying an image from Chrome
'<meta charset=\'utf-8\'>\n<img src="https://example.com/img.png"/>',
true,
],
[
'',
false,
],
[
'<img src="https://example.com/img.png"/>',
true,
],
[
'<img src="https://example.com/img.png"/><img src="https://example.com/img.png"/>',
false,
],
[
'<img src="https://example.com/img.png"/><p>Some text</p>',
false,
],
[
'<img src="https://example.com/img.png"/> Some text',
false,
],
];
for (const [input, expected] of testCases) {
const actual = htmlDocIsImageOnly(input);
expect(actual).toBe(expected);
}
});
it.each([
['<p>Test</p><div></div>', 'Test'],
['<p>Testing</p><p>A test</p>', '<p>Testing</p><p>A test</p>'],
['<p>Testing</p><hr/>', '<p>Testing</p><hr/>'],
['<p>Testing</p><div style="border: 2px solid red;"></div>', '<p>Testing</p><div style="border: 2px solid red;"></div>'],
['<p>Testing</p><style onload=""></style>', 'Testing'],
['<p>is</p>\n<style onload="console.log(\'test\')"></style>', 'is\n'],
])('should remove empty elements (case %#)', (before, expected) => {
expect(removeWrappingParagraphAndTrailingEmptyElements(before)).toBe(expected);
});
});