ngx-translate-extract/tests/post-processors/null-as-default-value.post-processor.spec.ts

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import { expect } from 'chai';
import { PostProcessorInterface } from '../../src/post-processors/post-processor.interface';
import { NullAsDefaultValuePostProcessor } from '../../src/post-processors/null-as-default-value.post-processor';
import { TranslationCollection } from '../../src/utils/translation.collection';
describe('NullAsDefaultValuePostProcessor', () => {
let processor: PostProcessorInterface;
beforeEach(() => {
processor = new NullAsDefaultValuePostProcessor();
});
it('should use null as default value', () => {
const draft = new TranslationCollection({ 'String A': '' });
const extracted = new TranslationCollection({ 'String A': '' });
const existing = new TranslationCollection();
expect(processor.process(draft, extracted, existing).values).to.deep.equal({
'String A': null
});
});
it('should keep existing value even if it is an empty string', () => {
const draft = new TranslationCollection({ 'String A': '' });
const extracted = new TranslationCollection({ 'String A': '' });
const existing = new TranslationCollection({ 'String A': '' });
expect(processor.process(draft, extracted, existing).values).to.deep.equal({
'String A': ''
});
});
it('should keep existing value', () => {
const draft = new TranslationCollection({ 'String A': 'Streng A' });
const extracted = new TranslationCollection({ 'String A': 'Streng A' });
const existing = new TranslationCollection({ 'String A': 'Streng A' });
expect(processor.process(draft, extracted, existing).values).to.deep.equal({
'String A': 'Streng A'
});
});
});