gitlab-org--gitlab-foss/spec/frontend/locale/sprintf_spec.js

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import sprintf from '~/locale/sprintf';
describe('locale', () => {
describe('sprintf', () => {
it('does not modify string without parameters', () => {
const input = 'No parameters';
const output = sprintf(input);
expect(output).toBe(input);
});
it('ignores extraneous parameters', () => {
const input = 'No parameters';
const output = sprintf(input, { ignore: 'this' });
expect(output).toBe(input);
});
it('ignores extraneous placeholders', () => {
const input = 'No %{parameters}';
const output = sprintf(input);
expect(output).toBe(input);
});
it('replaces parameters', () => {
const input = '%{name} has %{count} parameters';
const parameters = {
name: 'this',
count: 2,
};
const output = sprintf(input, parameters);
expect(output).toBe('this has 2 parameters');
});
it('replaces multiple occurrences', () => {
const input = 'to %{verb} or not to %{verb}';
const parameters = {
verb: 'be',
};
const output = sprintf(input, parameters);
expect(output).toBe('to be or not to be');
});
it('escapes parameters', () => {
const input = 'contains %{userContent}';
const parameters = {
userContent: '<script>alert("malicious!")</script>',
};
const output = sprintf(input, parameters);
expect(output).toBe('contains &lt;script&gt;alert(&quot;malicious!&quot;)&lt;/script&gt;');
});
it('does not escape parameters for escapeParameters = false', () => {
const input = 'contains %{safeContent}';
const parameters = {
safeContent: '<strong>bold attempt</strong>',
};
const output = sprintf(input, parameters, false);
expect(output).toBe('contains <strong>bold attempt</strong>');
});
});
});