debian-mirror-gitlab/spec/frontend/notebook/cells/output/latex_spec.js

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2021-03-08 18:12:59 +05:30
import { shallowMount } from '@vue/test-utils';
import LatexOutput from '~/notebook/cells/output/latex.vue';
import Prompt from '~/notebook/cells/prompt.vue';
describe('LaTeX output cell', () => {
beforeEach(() => {
window.MathJax = {
tex2svg: jest.fn((code) => ({ outerHTML: code })),
};
});
const inlineLatex = '$$F(k) = \\int_{-\\infty}^{\\infty} f(x) e^{2\\pi i k} dx$$';
const count = 12345;
const createComponent = (rawCode, index) =>
shallowMount(LatexOutput, {
propsData: {
count,
index,
rawCode,
},
});
it.each`
index | expectation
${0} | ${true}
${1} | ${false}
`('sets `Prompt.show-output` to $expectation when index is $index', ({ index, expectation }) => {
const wrapper = createComponent(inlineLatex, index);
const prompt = wrapper.find(Prompt);
expect(prompt.props().count).toEqual(count);
expect(prompt.props().showOutput).toEqual(expectation);
});
it('strips the `$$` delimter from LaTeX', () => {
createComponent(inlineLatex, 0);
expect(window.MathJax.tex2svg).toHaveBeenCalledWith(expect.not.stringContaining('$$'));
});
});