feat: add some tests

src/fetch.cjs

@@ -1,3 +1,3 @@
 module.exports = {
     fetch: fetch
-}
+};

test/unleash-action.test.js

@@ -1,6 +1,6 @@
 import { UnleashAction } from '../src/unleash-action';
 
-test('calls home', async () => {
+test('checks features', async () => {
     const unleash = {};
     unleash.isEnabled = () => {
         return true;
@@ -35,3 +35,71 @@ test('calls home', async () => {
     await action.run();
     expect(resultSet).toBe(true);
 });
+
+test('checks variants', async () => {
+    const unleash = {};
+    unleash.isEnabled = () => {
+        return true;
+    };
+    unleash.on = () => {};
+    unleash.start = () => {};
+    unleash.stop = () => {};
+    unleash.getVariant = () => {
+        return {
+            name: 'variant-1',
+            enabled: true,
+            payload: { value: 'red' },
+        };
+    };
+
+    const metrics = {};
+    metrics.count = () => {};
+    metrics.countVariant = () => {};
+    metrics.sendMetrics = () => {};
+    let resultSets = [];
+    const action = new UnleashAction({
+        client: unleash,
+        metrics,
+        url: 'http://localhost:3000',
+        clientKey: 'client-1',
+        appName: 'test-app',
+        environment: 'test',
+        context: {},
+        variants: ['variant-1'],
+        setResult: (name, value) => {
+            resultSets.push({ name, value });
+        },
+    });
+    await action.run();
+    expect(resultSets).toEqual(
+        expect.arrayContaining([
+            expect.objectContaining({ name: 'variant-1', value: true }),
+            expect.objectContaining({ name: 'variant-1_variant', value: 'red' }),
+        ])
+    );
+});
+
+test('end calls sendMetrics and stop', async () => { 
+    const unleash = {};
+    unleash.stop = jest.fn();
+    unleash.on = () => {};
+    const metrics = {};
+    metrics.sendMetrics = jest.fn();
+    const action = new UnleashAction({
+        client: unleash,
+        metrics,
+        url: 'http://localhost:3000',
+        clientKey: 'client-1',
+        appName: 'test-app',
+        environment: 'test',
+        context: {},
+        variants: ['variant-1'],
+        setResult: (name, value) => {
+            resultSets.push({ name, value });
+        },
+    });
+
+    await action.end();
+    expect(metrics.sendMetrics).toBeCalled();
+    expect(unleash.stop).toBeCalled();
+});