use reflow to migrate from flow to typescript

scm-ui/ui-extensions/src/binder.test.ts

@@ -0,0 +1,65 @@
+import { Binder } from './binder';
+
+describe('binder tests', () => {
+  let binder;
+
+  beforeEach(() => {
+    binder = new Binder();
+  });
+
+  it('should return an empty array for non existing extension points', () => {
+    const extensions = binder.getExtensions('hitchhiker');
+    expect(extensions).toEqual([]);
+  });
+
+  it('should return the binded extensions', () => {
+    binder.bind('hitchhicker.trillian', 'heartOfGold');
+    binder.bind('hitchhicker.trillian', 'earth');
+
+    const extensions = binder.getExtensions('hitchhicker.trillian');
+    expect(extensions).toEqual(['heartOfGold', 'earth']);
+  });
+
+  it('should return the first bound extension', () => {
+    binder.bind('hitchhicker.trillian', 'heartOfGold');
+    binder.bind('hitchhicker.trillian', 'earth');
+
+    expect(binder.getExtension('hitchhicker.trillian')).toBe('heartOfGold');
+  });
+
+  it('should return null if no extension was bound', () => {
+    expect(binder.getExtension('hitchhicker.trillian')).toBe(null);
+  });
+
+  it('should return true, if an extension is bound', () => {
+    binder.bind('hitchhicker.trillian', 'heartOfGold');
+    expect(binder.hasExtension('hitchhicker.trillian')).toBe(true);
+  });
+
+  it('should return false, if no extension is bound', () => {
+    expect(binder.hasExtension('hitchhicker.trillian')).toBe(false);
+  });
+
+  it('should return only extensions which predicates matches', () => {
+    binder.bind(
+      'hitchhicker.trillian',
+      'heartOfGold',
+      (props: object) => props.category === 'a',
+    );
+    binder.bind(
+      'hitchhicker.trillian',
+      'earth',
+      (props: object) => props.category === 'b',
+    );
+    binder.bind(
+      'hitchhicker.trillian',
+      'earth2',
+      (props: object) => props.category === 'a',
+    );
+
+    const extensions = binder.getExtensions('hitchhicker.trillian', {
+      category: 'b',
+    });
+    expect(extensions).toEqual(['earth']);
+  });
+});