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responsive-image.test.js
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responsive-image.test.js
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const resp_img = require('./responsive-image.html.js');
const fs = require('fs');
const assert = require('assert');
const path = require('path');
// Check if any of the test files already exist if so - delete them
beforeEach(function() {
['200w', '300w'].forEach(suffix => {
const file_path = path.resolve(
__dirname,
`../../../public/assets/test-img-02f66078${suffix}.jpg`
);
try {
fs.accessSync(file_path, fs.constants.F_OK);
fs.unlinkSync(
path.resolve(
__dirname,
`../../../public/assets/test-img-02f66078-${suffix}.jpg`
),
err => {
if (err) throw new Error(err);
}
);
} catch {
return;
}
});
});
//After test delete the test files
after(function() {
['200w', '300w'].forEach(suffix => {
fs.unlinkSync(
path.resolve(
__dirname,
`../../../public/assets/test-img-02f66078-${suffix}.jpg`
),
err => {
if (err) throw err;
}
);
});
});
describe('responsive-image-creator', function() {
it('Should create images with given resolutions', async function() {
const file_path = path.resolve(__dirname, './test-img.jpg');
const resolutions = [200, 300];
const resize_data = {
image_path: file_path,
resolutions,
quality: 80,
sizes_attr: '100px',
alt_tag: 'alt_tag',
};
await resp_img(resize_data).then(function() {
resolutions.forEach(resolution => {
fs.accessSync(
path.resolve(
__dirname,
`../../../public/assets/test-img-02f66078-${resolution}w.jpg`
),
fs.constants.F_OK,
err => {
assert(!err);
}
);
});
});
});
it('Should resolve a valid responsive html img tag', async function() {
const file_path = path.resolve(__dirname, './test-img.jpg');
const resolutions = [200, 300];
const resize_data = {
image_path: file_path,
resolutions,
quality: 80,
sizes_attr: '100px',
alt_tag: 'alt_tag',
};
const result = await resp_img(resize_data);
assert(
result,
/* HTML */
`
<img
src="${file_path}"
srcset="/assets/test-img-02f66078-200w.jpg,\n/assets/test-img-02f66078-300w.jpg"
sizes="100px"
alt="alt_tag"
/>
`
);
});
});

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responsive-image.test.js (2 KB)

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