Add tests for the scheme mapper

Author: axelrindle

test/test-scheme-mapper.js

@@ -0,0 +1,83 @@
+// require modules
+const test = require('ava');
+const schemeMapper = require('../lib/scheme-mapper');
+
+// define some test objects
+const validReleaseObject = {
+	name: 'axelrindle/github-version-checker',
+	tag_name: 'v2.0.0',
+	prerelease: false,
+	published_at: '1. May 2018',
+	html_url: 'https://github.com/axelrindle/github-version-checker/releases/tag/v2.0.0'
+};
+const validReleaseObject2 = {
+	name: 'axelrindle/github-version-checker',
+	tag_name: 'v2.0.0',
+	prerelease: false,
+	published_at: '1. May 2018',
+	html_url: 'https://github.com/axelrindle/github-version-checker/releases/tag/v2.0.0',
+	lorem: 'ipsum',
+	dolor: 'sit',
+	amet: 'test'
+};
+
+test('scheme-mapper#release maps correctly', t => {
+	const mapped = schemeMapper.release(validReleaseObject);
+	t.deepEqual(mapped, {
+		name: 'axelrindle/github-version-checker',
+		tag: {
+			name: 'v2.0.0'
+		},
+		isPrerelease: false,
+		publishedAt: '1. May 2018',
+		url: 'https://github.com/axelrindle/github-version-checker/releases/tag/v2.0.0'
+	});
+
+
+	const mapped2 = schemeMapper.release(validReleaseObject2);
+	t.deepEqual(mapped2, {
+		name: 'axelrindle/github-version-checker',
+		tag: {
+			name: 'v2.0.0'
+		},
+		isPrerelease: false,
+		publishedAt: '1. May 2018',
+		url: 'https://github.com/axelrindle/github-version-checker/releases/tag/v2.0.0'
+	});
+});
+
+test('scheme-mapper#release fails with invalid object', t => {
+	const error = t.throws(() => {
+		return schemeMapper.release(null);
+	});
+	t.is(error.message, 'Cannot read property \'name\' of null');
+
+	const error2 = t.throws(() => {
+		return schemeMapper.release(undefined);
+	});
+	t.is(error2.message, 'Cannot read property \'name\' of undefined');
+});
+
+test('scheme-mapper#tag maps correctly', t => {
+	const mapped = schemeMapper.tag(validReleaseObject);
+	t.deepEqual(mapped, {
+		name: 'axelrindle/github-version-checker'
+	});
+
+	const mapped2 = schemeMapper.tag(validReleaseObject2);
+	t.deepEqual(mapped2, {
+		name: 'axelrindle/github-version-checker'
+	});
+});
+
+test('scheme-mapper#tag fails with invalid object', t => {
+	const error = t.throws(() => {
+		return schemeMapper.tag(null);
+	});
+	t.is(error.message, 'Cannot read property \'name\' of null');
+
+	const error2 = t.throws(() => {
+		return schemeMapper.tag(undefined);
+	});
+	t.is(error2.message, 'Cannot read property \'name\' of undefined');
+});