Add tests to normalize-url

Author: mxstbr

shared/test/normalize-url.test.js

@@ -0,0 +1,30 @@
+// @flow
+import normalizeUrl from '../normalize-url';
+
+type Input = string;
+type Output = string;
+
+// If only Input is provided it tests for input === output
+type TestCase = [Input, Output];
+
+type TestCases = {
+  [testName: string]: TestCase,
+};
+
+const testCases: TestCases = {
+  'should do nothing to https URLs': [
+    'https://github.com',
+    'https://github.com',
+  ],
+  'should do nothing to http URLs': ['http://github.com', 'http://github.com'],
+  'should add https:// in front of URLs without protocol': [
+    'github.com',
+    'https://github.com',
+  ],
+};
+
+Object.keys(testCases).forEach(name => {
+  it(name, () => {
+    expect(normalizeUrl(testCases[name][0])).toEqual(testCases[name][1]);
+  });
+});