Use same structure for tests as src

tests/parsers/abstract-template.parser.spec.ts

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+import { expect } from 'chai';
+
+import { AbstractTemplateParser } from '../../src/parsers/abstract-template.parser';
+
+class TestTemplateParser extends AbstractTemplateParser {
+
+	public isAngularComponent(filePath: string): boolean {
+		return this._isAngularComponent(filePath);
+	}
+
+	public normalizeTemplateAttributes(template: string): string {
+		return this._normalizeTemplateAttributes(template);
+	}
+
+	public extractInlineTemplate(contents: string): string {
+		return this._extractInlineTemplate(contents);
+	}
+
+}
+
+describe('AbstractTemplateParser', () => {
+
+	let parser: TestTemplateParser;
+
+	beforeEach(() => {
+		parser = new TestTemplateParser();
+	});
+
+	it('should recognize js extension as angular component', () => {
+		const result = parser.isAngularComponent('test.js');
+		expect(result).to.equal(true);
+	});
+
+	it('should recognize ts extension as angular component', () => {
+		const result = parser.isAngularComponent('test.ts');
+		expect(result).to.equal(true);
+	});
+
+	it('should not recognize html extension as angular component', () => {
+		const result = parser.isAngularComponent('test.html');
+		expect(result).to.equal(false);
+	});
+
+	it('should extract inline template', () => {
+		const contents = `
+			@Component({
+				selector: 'test',
+				template: '<p translate>Hello World</p>'
+			})
+			export class TestComponent { }
+		`;
+		const template = parser.extractInlineTemplate(contents);
+		expect(template).to.equal('<p translate>Hello World</p>');
+	});
+
+	it('should normalize bound attributes', () => {
+		const contents = `<p [translate]="'KEY'">Hello World</p>`;
+		const template = parser.normalizeTemplateAttributes(contents);
+		expect(template).to.equal('<p translate="KEY">Hello World</p>');
+	});
+
+});

tests/parsers/directive.parser.spec.ts

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+import { expect } from 'chai';
+
+import { DirectiveParser } from '../../src/parsers/directive.parser';
+
+describe('DirectiveParser', () => {
+
+	const templateFilename: string = 'test.template.html';
+	const componentFilename: string = 'test.component.ts';
+
+	let parser: DirectiveParser;
+
+	beforeEach(() => {
+		parser = new DirectiveParser();
+	});
+
+	it('should extract contents when no translate attribute value is provided', () => {
+		const contents = '<div translate>Hello World</div>';
+		const messages = parser.process(templateFilename, contents);
+		expect(messages).to.deep.equal(['Hello World']);
+	});
+
+	it('should extract translate attribute if provided', () => {
+		const contents = '<div translate="KEY">Hello World<div>';
+		const messages = parser.process(templateFilename, contents);
+		expect(messages).to.deep.equal(['KEY']);
+	});
+
+	it('should extract bound translate attribute as key if provided', () => {
+		const contents = `<div [translate]="'KEY'">Hello World<div>`;
+		const messages = parser.process(templateFilename, contents);
+		expect(messages).to.deep.equal(['KEY']);
+	});
+
+	it('should extract direct text nodes when no translate attribute value is provided', () => {
+		const contents = `
+			<div translate>
+				<span>&#10003;</span>
+				Hello <strong>World</strong>
+				Hi <em>there</em>
+			</div>
+		`;
+		const messages = parser.process(templateFilename, contents);
+		expect(messages).to.deep.equal(['Hello', 'Hi']);
+	});
+
+	it('should extract direct text nodes of tags with a translate attribute', () => {
+		const contents = `
+			<div translate>
+				<span>&#10003;</span>
+				Hello World
+				<div translate>Hi there</div>
+			</div>
+		`;
+		const messages = parser.process(templateFilename, contents);
+		expect(messages).to.deep.equal(['Hello World', 'Hi there']);
+	});
+
+	it('should extract translate attribute if provided or direct text nodes if not', () => {
+		const contents = `
+			<div translate="KEY">
+				<span>&#10003;</span>
+				Hello World
+				<p translate>Hi there</p>
+				<p [translate]="'OTHER_KEY'">Lorem Ipsum</p>
+			</div>
+		`;
+		const messages = parser.process(templateFilename, contents);
+		expect(messages).to.deep.equal(['KEY', 'Hi there', 'OTHER_KEY']);
+	});
+
+	it('should extract and parse inline template', () => {
+		const contents = `
+			@Component({
+				selector: 'test',
+				template: '<p translate>Hello World</p>'
+			})
+			export class TestComponent { }
+		`;
+		const messages = parser.process(componentFilename, contents);
+		expect(messages).to.deep.equal(['Hello World']);
+	});
+
+});

tests/parsers/pipe.parser.spec.ts

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+import { expect } from 'chai';
+
+import { PipeParser } from '../../src/parsers/pipe.parser';
+
+describe('PipeParser', () => {
+
+	const templateFilename: string = 'test.template.html';
+
+	let parser: PipeParser;
+
+	beforeEach(() => {
+		parser = new PipeParser();
+	});
+
+	it('should extract interpolated strings using translate pipe', () => {
+		const contents = `Hello {{ 'World' | translate }}`;
+		const messages = parser.process(templateFilename, contents);
+		expect(messages).to.deep.equal(['World']);
+	});
+
+	it('should extract interpolated strings using translate pipe in attributes', () => {
+		const contents = `<span attr="{{ 'Hello World' | translate }}"></span>`;
+		const messages = parser.process(templateFilename, contents);
+		expect(messages).to.deep.equal(['Hello World']);
+	});
+
+	it('should extract bound strings using translate pipe in attributes', () => {
+		const contents = `<span [attr]="'Hello World' | translate"></span>`;
+		const messages = parser.process(templateFilename, contents);
+		expect(messages).to.deep.equal(['Hello World']);
+	});
+
+});

tests/parsers/service.parser.spec.ts

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+import { expect } from 'chai';
+
+import { ServiceParser } from '../../src/parsers/service.parser';
+
+class TestServiceParser extends ServiceParser {
+
+	public extractTranslateServiceVar(contents: string): string {
+		return this._extractTranslateServiceVar(contents);
+	}
+
+}
+
+describe('ServiceParser', () => {
+
+	const componentFilename: string = 'test.component.ts';
+
+	let parser: TestServiceParser;
+
+	beforeEach(() => {
+		parser = new TestServiceParser();
+	});
+
+	it('should extract variable used for TranslateService', () => {
+		const contents = `
+			@Component({ })
+			export class AppComponent {
+				public constructor(
+					_serviceA: ServiceA,
+					public _serviceB: ServiceB,
+					protected _translateService: TranslateService
+			) { }
+		`;
+		const messages = parser.extractTranslateServiceVar(contents);
+		expect(messages).to.equal('_translateService');
+	});
+
+	it('should extract string passed to translateService.get()', () => {
+		const contents = `
+			@Component({ })
+			export class AppComponent {
+				public constructor(protected _translateService: TranslateService) { }
+				public test() {
+					this._translateService.get('Hello World');
+				}
+		`;
+		const messages = parser.process(componentFilename, contents);
+		expect(messages).to.deep.equal(['Hello World']);
+	});
+
+	it('should extract string passed to translateService.instant()', () => {
+		const contents = `
+			@Component({ })
+			export class AppComponent {
+				public constructor(protected _translateService: TranslateService) { }
+				public test() {
+					this._translateService.instant('Hello World');
+				}
+		`;
+		const messages = parser.process(componentFilename, contents);
+		expect(messages).to.deep.equal(['Hello World']);
+	});
+
+	it('should not extract string passed to get() or instant() methods of other services', () => {
+		const contents = `
+			@Component({ })
+			export class AppComponent {
+				public constructor(
+					protected _translateService: TranslateService,
+					protected _otherService: OtherService
+				) { }
+				public test() {
+					this._otherService.get('Hello World');
+					this._otherService.instant('Hi there');
+				}
+		`;
+		const messages = parser.process(componentFilename, contents);
+		expect(messages).to.deep.equal([]);
+	});
+
+});