Add UT and upgrade this test suite with go sub-test

pkg/controller/deployment/util/deployment_util_test.go

@@ -246,7 +246,7 @@ func TestGetNewRS(t *testing.T) {
 	newRC := generateRS(newDeployment)
 
 	tests := []struct {
-		test     string
+		Name     string
 		objs     []runtime.Object
 		expected *extensions.ReplicaSet
 	}{
@@ -282,6 +282,7 @@ func TestGetNewRS(t *testing.T) {
 	}
 
 	for _, test := range tests {
+		t.Run(test.Name, func(t *testing.T) {
 			fakeClient := &fake.Clientset{}
 			fakeClient = addListPodsReactor(fakeClient, test.objs[0])
 			fakeClient = addListRSReactor(fakeClient, test.objs[1])
@@ -289,11 +290,12 @@ func TestGetNewRS(t *testing.T) {
 			fakeClient = addUpdateRSReactor(fakeClient)
 			rs, err := GetNewReplicaSet(&newDeployment, fakeClient)
 			if err != nil {
-			t.Errorf("In test case %s, got unexpected error %v", test.test, err)
+				t.Errorf("In test case %s, got unexpected error %v", test.Name, err)
 			}
 			if !apiequality.Semantic.DeepEqual(rs, test.expected) {
-			t.Errorf("In test case %s, expected %#v, got %#v", test.test, test.expected, rs)
+				t.Errorf("In test case %s, expected %#v, got %#v", test.Name, test.expected, rs)
 			}
+		})
 	}
 }
 
@@ -318,7 +320,7 @@ func TestGetOldRSs(t *testing.T) {
 	existedRS.Status.FullyLabeledReplicas = *(existedRS.Spec.Replicas)
 
 	tests := []struct {
-		test     string
+		Name     string
 		objs     []runtime.Object
 		expected []*extensions.ReplicaSet
 	}{
@@ -354,24 +356,26 @@ func TestGetOldRSs(t *testing.T) {
 	}
 
 	for _, test := range tests {
+		t.Run(test.Name, func(t *testing.T) {
 			fakeClient := &fake.Clientset{}
 			fakeClient = addListRSReactor(fakeClient, test.objs[0])
 			fakeClient = addGetRSReactor(fakeClient, test.objs[0])
 			fakeClient = addUpdateRSReactor(fakeClient)
 			_, rss, err := GetOldReplicaSets(&newDeployment, fakeClient)
 			if err != nil {
-			t.Errorf("In test case %s, got unexpected error %v", test.test, err)
+				t.Errorf("In test case %s, got unexpected error %v", test.Name, err)
 			}
 			if !equal(rss, test.expected) {
-			t.Errorf("In test case %q, expected:", test.test)
+				t.Errorf("In test case %q, expected:", test.Name)
 				for _, rs := range test.expected {
 					t.Errorf("rs = %#v", rs)
 				}
-			t.Errorf("In test case %q, got:", test.test)
+				t.Errorf("In test case %q, got:", test.Name)
 				for _, rs := range rss {
 					t.Errorf("rs = %#v", rs)
 				}
 			}
+		})
 	}
 }
 
@@ -390,7 +394,7 @@ func generatePodTemplateSpec(name, nodeName string, annotations, labels map[stri
 
 func TestEqualIgnoreHash(t *testing.T) {
 	tests := []struct {
-		test           string
+		Name           string
 		former, latter v1.PodTemplateSpec
 		expected       bool
 	}{
@@ -445,6 +449,7 @@ func TestEqualIgnoreHash(t *testing.T) {
 	}
 
 	for _, test := range tests {
+		t.Run(test.Name, func(t *testing.T) {
 			runTest := func(t1, t2 *v1.PodTemplateSpec, reversed bool) {
 				reverseString := ""
 				if reversed {
@@ -453,20 +458,22 @@ func TestEqualIgnoreHash(t *testing.T) {
 				// Run
 				equal, err := EqualIgnoreHash(t1, t2)
 				if err != nil {
-				t.Errorf("%s: unexpected error: %v", err, test.test)
+					t.Errorf("%s: unexpected error: %v", err, test.Name)
 					return
 				}
 				if equal != test.expected {
-				t.Errorf("%q%s: expected %v", test.test, reverseString, test.expected)
+					t.Errorf("%q%s: expected %v", test.Name, reverseString, test.expected)
 					return
 				}
 				if t1.Labels == nil || t2.Labels == nil {
-				t.Errorf("%q%s: unexpected labels becomes nil", test.test, reverseString)
+					t.Errorf("%q%s: unexpected labels becomes nil", test.Name, reverseString)
 				}
 			}
+
 			runTest(&test.former, &test.latter, false)
 			// Test the same case in reverse order
 			runTest(&test.latter, &test.former, true)
+		})
 	}
 }
 
@@ -489,25 +496,25 @@ func TestFindNewReplicaSet(t *testing.T) {
 	oldRS.Status.FullyLabeledReplicas = *(oldRS.Spec.Replicas)
 
 	tests := []struct {
-		test       string
+		Name       string
 		deployment extensions.Deployment
 		rsList     []*extensions.ReplicaSet
 		expected   *extensions.ReplicaSet
 	}{
 		{
-			test:       "Get new ReplicaSet with the same template as Deployment spec but different pod-template-hash value",
+			Name:       "Get new ReplicaSet with the same template as Deployment spec but different pod-template-hash value",
 			deployment: deployment,
 			rsList:     []*extensions.ReplicaSet{&newRS, &oldRS},
 			expected:   &newRS,
 		},
 		{
-			test:       "Get the oldest new ReplicaSet when there are more than one ReplicaSet with the same template",
+			Name:       "Get the oldest new ReplicaSet when there are more than one ReplicaSet with the same template",
 			deployment: deployment,
 			rsList:     []*extensions.ReplicaSet{&newRS, &oldRS, &newRSDup},
 			expected:   &newRSDup,
 		},
 		{
-			test:       "Get nil new ReplicaSet",
+			Name:       "Get nil new ReplicaSet",
 			deployment: deployment,
 			rsList:     []*extensions.ReplicaSet{&oldRS},
 			expected:   nil,
@@ -515,9 +522,11 @@ func TestFindNewReplicaSet(t *testing.T) {
 	}
 
 	for _, test := range tests {
+		t.Run(test.Name, func(t *testing.T) {
 			if rs, err := FindNewReplicaSet(&test.deployment, test.rsList); !reflect.DeepEqual(rs, test.expected) || err != nil {
-			t.Errorf("In test case %q, expected %#v, got %#v: %v", test.test, test.expected, rs, err)
+				t.Errorf("In test case %q, expected %#v, got %#v: %v", test.Name, test.expected, rs, err)
 			}
+		})
 	}
 }
 
@@ -543,7 +552,7 @@ func TestFindOldReplicaSets(t *testing.T) {
 	oldRS.CreationTimestamp = before
 
 	tests := []struct {
-		test            string
+		Name            string
 		deployment      extensions.Deployment
 		rsList          []*extensions.ReplicaSet
 		podList         *v1.PodList
@@ -551,28 +560,28 @@ func TestFindOldReplicaSets(t *testing.T) {
 		expectedRequire []*extensions.ReplicaSet
 	}{
 		{
-			test:            "Get old ReplicaSets",
+			Name:            "Get old ReplicaSets",
 			deployment:      deployment,
 			rsList:          []*extensions.ReplicaSet{&newRS, &oldRS},
 			expected:        []*extensions.ReplicaSet{&oldRS},
 			expectedRequire: nil,
 		},
 		{
-			test:            "Get old ReplicaSets with no new ReplicaSet",
+			Name:            "Get old ReplicaSets with no new ReplicaSet",
 			deployment:      deployment,
 			rsList:          []*extensions.ReplicaSet{&oldRS},
 			expected:        []*extensions.ReplicaSet{&oldRS},
 			expectedRequire: nil,
 		},
 		{
-			test:            "Get old ReplicaSets with two new ReplicaSets, only the oldest new ReplicaSet is seen as new ReplicaSet",
+			Name:            "Get old ReplicaSets with two new ReplicaSets, only the oldest new ReplicaSet is seen as new ReplicaSet",
 			deployment:      deployment,
 			rsList:          []*extensions.ReplicaSet{&oldRS, &newRS, &newRSDup},
 			expected:        []*extensions.ReplicaSet{&oldRS, &newRS},
 			expectedRequire: []*extensions.ReplicaSet{&newRS},
 		},
 		{
-			test:            "Get empty old ReplicaSets",
+			Name:            "Get empty old ReplicaSets",
 			deployment:      deployment,
 			rsList:          []*extensions.ReplicaSet{&newRS},
 			expected:        nil,
@@ -581,16 +590,18 @@ func TestFindOldReplicaSets(t *testing.T) {
 	}
 
 	for _, test := range tests {
+		t.Run(test.Name, func(t *testing.T) {
 			requireRS, allRS, err := FindOldReplicaSets(&test.deployment, test.rsList)
 			sort.Sort(controller.ReplicaSetsByCreationTimestamp(allRS))
 			sort.Sort(controller.ReplicaSetsByCreationTimestamp(test.expected))
 			if !reflect.DeepEqual(allRS, test.expected) || err != nil {
-			t.Errorf("In test case %q, expected %#v, got %#v: %v", test.test, test.expected, allRS, err)
+				t.Errorf("In test case %q, expected %#v, got %#v: %v", test.Name, test.expected, allRS, err)
 			}
 			// RSs are getting filtered correctly by rs.spec.replicas
 			if !reflect.DeepEqual(requireRS, test.expectedRequire) || err != nil {
-			t.Errorf("In test case %q, expected %#v, got %#v: %v", test.test, test.expectedRequire, requireRS, err)
+				t.Errorf("In test case %q, expected %#v, got %#v: %v", test.Name, test.expectedRequire, requireRS, err)
 			}
+		})
 	}
 }
 
@@ -623,7 +634,7 @@ func TestGetReplicaCountForReplicaSets(t *testing.T) {
 	rs2.Status.Replicas = 3
 
 	tests := []struct {
-		test           string
+		Name           string
 		sets           []*extensions.ReplicaSet
 		expectedCount  int32
 		expectedActual int32
@@ -643,14 +654,16 @@ func TestGetReplicaCountForReplicaSets(t *testing.T) {
 	}
 
 	for _, test := range tests {
+		t.Run(test.Name, func(t *testing.T) {
 			rs := GetReplicaCountForReplicaSets(test.sets)
 			if rs != test.expectedCount {
-			t.Errorf("In test case %s, expectedCount %+v, got %+v", test.test, test.expectedCount, rs)
+				t.Errorf("In test case %s, expectedCount %+v, got %+v", test.Name, test.expectedCount, rs)
 			}
 			rs = GetActualReplicaCountForReplicaSets(test.sets)
 			if rs != test.expectedActual {
-			t.Errorf("In test case %s, expectedActual %+v, got %+v", test.test, test.expectedActual, rs)
+				t.Errorf("In test case %s, expectedActual %+v, got %+v", test.Name, test.expectedActual, rs)
 			}
+		})
 	}
 }
 
@@ -698,6 +711,7 @@ func TestResolveFenceposts(t *testing.T) {
 	}
 
 	for num, test := range tests {
+		t.Run("maxSurge="+test.maxSurge, func(t *testing.T) {
 			maxSurge := intstr.FromString(test.maxSurge)
 			maxUnavail := intstr.FromString(test.maxUnavailable)
 			surge, unavail, err := ResolveFenceposts(&maxSurge, &maxUnavail, test.desired)
@@ -710,12 +724,13 @@ func TestResolveFenceposts(t *testing.T) {
 			if surge != test.expectSurge || unavail != test.expectUnavailable {
 				t.Errorf("#%v got %v:%v, want %v:%v", num, surge, unavail, test.expectSurge, test.expectUnavailable)
 			}
+		})
 	}
 }
 
 func TestNewRSNewReplicas(t *testing.T) {
 	tests := []struct {
-		test          string
+		Name          string
 		strategyType  extensions.DeploymentStrategyType
 		depReplicas   int32
 		newRSReplicas int32
@@ -744,20 +759,28 @@ func TestNewRSNewReplicas(t *testing.T) {
 	*(rs5.Spec.Replicas) = 5
 
 	for _, test := range tests {
+		t.Run(test.Name, func(t *testing.T) {
 			*(newDeployment.Spec.Replicas) = test.depReplicas
 			newDeployment.Spec.Strategy = extensions.DeploymentStrategy{Type: test.strategyType}
 			newDeployment.Spec.Strategy.RollingUpdate = &extensions.RollingUpdateDeployment{
-			MaxUnavailable: func(i int) *intstr.IntOrString { x := intstr.FromInt(i); return &x }(1),
-			MaxSurge:       func(i int) *intstr.IntOrString { x := intstr.FromInt(i); return &x }(test.maxSurge),
+				MaxUnavailable: func(i int) *intstr.IntOrString {
+					x := intstr.FromInt(i)
+					return &x
+				}(1),
+				MaxSurge: func(i int) *intstr.IntOrString {
+					x := intstr.FromInt(i)
+					return &x
+				}(test.maxSurge),
 			}
 			*(newRC.Spec.Replicas) = test.newRSReplicas
 			rs, err := NewRSNewReplicas(&newDeployment, []*extensions.ReplicaSet{&rs5}, &newRC)
 			if err != nil {
-			t.Errorf("In test case %s, got unexpected error %v", test.test, err)
+				t.Errorf("In test case %s, got unexpected error %v", test.Name, err)
 			}
 			if rs != test.expected {
-			t.Errorf("In test case %s, expected %+v, got %+v", test.test, test.expected, rs)
+				t.Errorf("In test case %s, expected %+v, got %+v", test.Name, test.expected, rs)
 			}
+		})
 	}
 }
 
@@ -825,11 +848,13 @@ func TestGetCondition(t *testing.T) {
 	}
 
 	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
 			cond := GetDeploymentCondition(test.status, test.condType)
 			exists := cond != nil
 			if exists != test.expected {
 				t.Errorf("%s: expected condition to exist: %t, got: %t", test.name, test.expected, exists)
 			}
+		})
 	}
 }
 
@@ -869,10 +894,12 @@ func TestSetCondition(t *testing.T) {
 	}
 
 	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
 			SetDeploymentCondition(test.status, test.cond)
 			if !reflect.DeepEqual(test.status, test.expectedStatus) {
 				t.Errorf("%s: expected status: %v, got: %v", test.name, test.expectedStatus, test.status)
 			}
+		})
 	}
 }
 
@@ -912,10 +939,12 @@ func TestRemoveCondition(t *testing.T) {
 	}
 
 	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
 			RemoveDeploymentCondition(test.status, test.condType)
 			if !reflect.DeepEqual(test.status, test.expectedStatus) {
 				t.Errorf("%s: expected status: %v, got: %v", test.name, test.expectedStatus, test.status)
 			}
+		})
 	}
 }
 
@@ -988,11 +1017,11 @@ func TestDeploymentComplete(t *testing.T) {
 	}
 
 	for _, test := range tests {
-		t.Log(test.name)
-
+		t.Run(test.name, func(t *testing.T) {
 			if got, exp := DeploymentComplete(test.d, &test.d.Status), test.expected; got != exp {
 				t.Errorf("expected complete: %t, got: %t", exp, got)
 			}
+		})
 	}
 }
 
@@ -1083,11 +1112,11 @@ func TestDeploymentProgressing(t *testing.T) {
 	}
 
 	for _, test := range tests {
-		t.Log(test.name)
-
+		t.Run(test.name, func(t *testing.T) {
 			if got, exp := DeploymentProgressing(test.d, &test.newStatus), test.expected; got != exp {
 				t.Errorf("expected progressing: %t, got: %t", exp, got)
 			}
+		})
 	}
 }
 
@@ -1149,12 +1178,12 @@ func TestDeploymentTimedOut(t *testing.T) {
 	}
 
 	for _, test := range tests {
-		t.Log(test.name)
-
+		t.Run(test.name, func(t *testing.T) {
 			nowFn = test.nowFn
 			if got, exp := DeploymentTimedOut(&test.d, &test.d.Status), test.expected; got != exp {
 				t.Errorf("expected timeout: %t, got: %t", exp, got)
 			}
+		})
 	}
 }
 
@@ -1228,9 +1257,70 @@ func TestMaxUnavailable(t *testing.T) {
 
 	for _, test := range tests {
 		t.Log(test.name)
+		t.Run(test.name, func(t *testing.T) {
 			maxUnavailable := MaxUnavailable(test.deployment)
 			if test.expected != maxUnavailable {
 				t.Fatalf("expected:%v, got:%v", test.expected, maxUnavailable)
 			}
+		})
 	}
 }
+
+//Set of simple tests for annotation related util functions
+func TestAnnotationUtils(t *testing.T) {
+
+	//Setup
+	tDeployment := generateDeployment("nginx")
+	tRS := generateRS(tDeployment)
+	tDeployment.Annotations[RevisionAnnotation] = "1"
+
+	//Test Case 1: Check if anotations are copied properly from deployment to RS
+	t.Run("SetNewReplicaSetAnnotations", func(t *testing.T) {
+		//Try to set the increment revision from 1 through 20
+		for i := 0; i < 20; i++ {
+
+			nextRevision := fmt.Sprintf("%d", i+1)
+			SetNewReplicaSetAnnotations(&tDeployment, &tRS, nextRevision, true)
+			//Now the ReplicaSets Revision Annotation should be i+1
+
+			if tRS.Annotations[RevisionAnnotation] != nextRevision {
+				t.Errorf("Revision Expected=%s Obtained=%s", nextRevision, tRS.Annotations[RevisionAnnotation])
+			}
+		}
+	})
+
+	//Test Case 2:  Check if annotations are set properly
+	t.Run("SetReplicasAnnotations", func(t *testing.T) {
+		updated := SetReplicasAnnotations(&tRS, 10, 11)
+		if !updated {
+			t.Errorf("SetReplicasAnnotations() failed")
+		}
+		value, ok := tRS.Annotations[DesiredReplicasAnnotation]
+		if !ok {
+			t.Errorf("SetReplicasAnnotations did not set DesiredReplicasAnnotation")
+		}
+		if value != "10" {
+			t.Errorf("SetReplicasAnnotations did not set DesiredReplicasAnnotation correctly value=%s", value)
+		}
+		if value, ok = tRS.Annotations[MaxReplicasAnnotation]; !ok {
+			t.Errorf("SetReplicasAnnotations did not set DesiredReplicasAnnotation")
+		}
+		if value != "11" {
+			t.Errorf("SetReplicasAnnotations did not set MaxReplicasAnnotation correctly value=%s", value)
+		}
+	})
+
+	//Test Case 3:  Check if annotations reflect deployments state
+	tRS.Annotations[DesiredReplicasAnnotation] = "1"
+	tRS.Status.AvailableReplicas = 1
+	tRS.Spec.Replicas = new(int32)
+	*tRS.Spec.Replicas = 1
+
+	t.Run("IsSaturated", func(t *testing.T) {
+		saturated := IsSaturated(&tDeployment, &tRS)
+		if !saturated {
+			t.Errorf("SetReplicasAnnotations Expected=true Obtained=false")
+		}
+	})
+	//Tear Down
+}