add another test for the update functionality

Author: Hweinstock

src/test/ec2/explorer/ec2InstanceNode.test.ts

@@ -21,7 +21,7 @@ describe('ec2InstanceNode', function () {
 
     before(function () {
         testInstance = {
-            InstanceId: 'running-testId',
+            InstanceId: 'testId',
             Tags: [
                 {
                     Key: 'Name',
@@ -35,6 +35,10 @@ describe('ec2InstanceNode', function () {
         testNode = new Ec2InstanceNode(testParentNode, testClient, 'testRegion', 'testPartition', testInstance)
     })
 
+    this.beforeEach(function () {
+        testNode.updateInstance(testInstance)
+    })
+
     it('instantiates without issue', async function () {
         assert.ok(testNode)
     })
@@ -78,4 +82,10 @@ describe('ec2InstanceNode', function () {
         testNode.updateInstance(pendingInstance)
         assert.strictEqual(testNode.contextValue, Ec2InstancePendingContext)
     })
+
+    it('updates label with new instance', async function () {
+        const newIdInstance = { ...testInstance, InstanceId: 'testId2' }
+        testNode.updateInstance(newIdInstance)
+        assert.strictEqual(testNode.label, `${getNameOfInstance(newIdInstance)} (${newIdInstance.InstanceId})`)
+    })
 })