Initial commit

node_modules/server/error/index.test.js

@@ -0,0 +1,85 @@
+const ErrorFactory = require('./index.js');
+
+describe('server/error', () => {
+  it('is a function', () => {
+    expect(ErrorFactory instanceof Function).toBe(true);
+  });
+
+  it('canNOT do simple errors', () => {
+    expect(new ErrorFactory('Hello world').message).not.toBe('Hello world');
+    expect(new ErrorFactory('Hello world') instanceof Error).not.toBe(true);
+  });
+
+  it('does not create a plain error', () => {
+    expect(ErrorFactory().message).toBe(undefined);
+    expect(ErrorFactory() instanceof Function).toBe(true);
+    expect(ErrorFactory('Hello world').message).toBe(undefined);
+    expect(ErrorFactory('Hello world') instanceof Function).toBe(true);
+    expect(ErrorFactory('Hello world', {}).message).toBe(undefined);
+    expect(ErrorFactory('Hello world', {}) instanceof Function).toBe(true);
+  });
+
+  it('can create errors from within the factory', () => {
+    expect(ErrorFactory('/server/')('test') instanceof Error).toBe(true);
+    expect(ErrorFactory('/server/')('test').code).toBe('/server/test');
+    expect(ErrorFactory('/server/')('test', { status: 500 }).status).toBe(500);
+  });
+
+  it('can create errors from within the factory', () => {
+    expect(ErrorFactory('/server/')('test') instanceof Error).toBe(true);
+    expect(ErrorFactory('/server/')('test').code).toBe('/server/test');
+    expect(ErrorFactory('/server/')('test').namespace).toBe('/server/');
+    expect(ErrorFactory('/server/')('test', { status: 500 }).status).toBe(500);
+  });
+
+  describe('Namespaces', () => {
+    const TestError = ErrorFactory('/server/', { status: 500 });
+
+    it('has the correct defaults', () => {
+      expect(TestError().status).toBe(500);
+      expect(TestError().code).toBe('/server');
+      expect(TestError().id).toBe('server');
+    });
+
+    it('can extend the errors', () => {
+      const err = TestError('demo', { status: 501 });
+      expect(err.status).toBe(501);
+      expect(err.code).toBe('/server/demo');
+      expect(err.id).toBe('server-demo');
+    });
+
+    it('is the same as with the instance', () => {
+      const err = TestError('demo', { status: 501 });
+      const err2 = new TestError('demo', { status: 501 });
+      expect(err).toMatchObject(err2);
+    });
+  });
+
+  describe('Define errors', () => {
+    const TestError = ErrorFactory('/server/', { status: 500 });
+    TestError.aaa = 'First error';
+
+    it('has the correct message', () => {
+      expect(TestError('aaa').message).toBe('First error');
+    });
+
+    it('can define an error with a function', () => {
+      TestError.bbb = () => `Function error`;
+      expect(TestError('bbb').message).toBe('Function error');
+    });
+
+    it('defines errors globally', () => {
+      expect(TestError('bbb').message).toBe('Function error');
+    });
+
+    it('errors are namespaced', () => {
+      const TestError = ErrorFactory('/server/');
+      expect(TestError('bbb').message).toBe(undefined);
+    });
+
+    it('gets the options in the interpolation', () => {
+      TestError.ccc = ({ status }) => `Function error ${status}`;
+      expect(TestError('ccc', { status: 505 }).message).toBe('Function error 505');
+    });
+  });
+});