test(lib): add test for e-net without global config

src/__tests__/unit/lib/e-net/index.test.ts

@@ -67,3 +67,36 @@ describe('lib/e-net', () => {
     });
   });
 });
+
+describe('execute() without global config: ', () => {
+  it('calculates energy for each input.', async () => {
+    const globalConfig = {};
+    const eNet = ENet(globalConfig);
+    const inputs = [
+      {
+        'network/data-in': 10,
+        'network/data-out': 5,
+        duration: 3600,
+        timestamp: '2022-01-01T01:00:00Z',
+      },
+      {
+        'network/data-in': 20,
+        'network/data-out': 15,
+        duration: 3600,
+        timestamp: '2022-01-01T01:00:00Z',
+      },
+    ];
+
+    expect.assertions(3);
+
+    const result = await eNet.execute(inputs);
+
+    expect(result).toHaveLength(inputs.length);
+    result.forEach((output, index) => {
+      expect(output['network/energy']).toBeCloseTo(
+        (inputs[index]['network/data-in'] + inputs[index]['network/data-out']) *
+          0.001
+      );
+    });
+  });
+});