diff --git a/internal/common/common_test.go b/internal/common/common_test.go
index 2c61f6b..0973a08 100644
--- a/internal/common/common_test.go
+++ b/internal/common/common_test.go
@@ -43,6 +43,15 @@ func Test_Run(t *testing.T) {
 		"no global id": func(*testing.T) (string, map[string]string, bool) {
 			return "testdata/no-global-id.yaml", nil, true
 		},
+		"empty arrays": func(*testing.T) (string, map[string]string, bool) {
+			return "testdata/empty-array.yaml", map[string]string{common.EnvThrottlingRateLimit: "abc"}, false
+		},
+		"nil array entry": func(*testing.T) (string, map[string]string, bool) {
+			return "testdata/nil-array.yaml", nil, true
+		},
+		"invalid client creation": func(*testing.T) (string, map[string]string, bool) {
+			return "testdata/invalid-client.yaml", nil, true
+		},
 	}
 
 	for name, test := range tests {
@@ -56,16 +65,29 @@ func Test_Run(t *testing.T) {
 
 			arrays, mapper, defaultArray, err := common.GetPowerStoreArrays(filePath, logger)
 
-			if expectError {
-				assert.Nil(t, arrays)
-				assert.Nil(t, mapper)
+			switch name {
+			case "empty arrays":
+				assert.Equal(t, 0, len(arrays))
+				assert.Nil(t, defaultArray)
+			case "nil array entry":
+				assert.Empty(t, arrays)
+				assert.Empty(t, mapper)
 				assert.Nil(t, defaultArray)
-				assert.NotNil(t, err)
-			} else {
-				assert.NotNil(t, arrays)
-				assert.NotNil(t, mapper)
-				assert.NotNil(t, defaultArray)
 				assert.Nil(t, err)
+				return
+			// Other cases...
+			default:
+				if expectError {
+					assert.Nil(t, arrays)
+					assert.Nil(t, mapper)
+					assert.Nil(t, defaultArray)
+					assert.NotNil(t, err)
+				} else {
+					assert.NotNil(t, arrays)
+					assert.NotNil(t, mapper)
+					assert.NotNil(t, defaultArray)
+					assert.Nil(t, err)
+				}
 			}
 		})
 	}
diff --git a/internal/common/testdata/empty-array.yaml b/internal/common/testdata/empty-array.yaml
new file mode 100644
index 0000000..5501ca5
--- /dev/null
+++ b/internal/common/testdata/empty-array.yaml
@@ -0,0 +1 @@
+arrays: []
diff --git a/internal/common/testdata/invalid-client.yaml b/internal/common/testdata/invalid-client.yaml
new file mode 100644
index 0000000..4b82dd3
--- /dev/null
+++ b/internal/common/testdata/invalid-client.yaml
@@ -0,0 +1,6 @@
+arrays:
+  - endpoint: "https://invalid_endpoint"
+    globalID: "array1"
+    username: "user"
+    password: "password"
+    skipCertificateValidation: true
diff --git a/internal/common/testdata/nil-array.yaml b/internal/common/testdata/nil-array.yaml
new file mode 100644
index 0000000..6e6b7d6
--- /dev/null
+++ b/internal/common/testdata/nil-array.yaml
@@ -0,0 +1,2 @@
+arrays:
+  -
diff --git a/internal/entrypoint/run_test.go b/internal/entrypoint/run_test.go
index 2393d5c..854d6a7 100644
--- a/internal/entrypoint/run_test.go
+++ b/internal/entrypoint/run_test.go
@@ -275,3 +275,27 @@ func Test_Run(t *testing.T) {
 func noCheckConfig(_ *entrypoint.Config) error {
 	return nil
 }
+
+func Test_ValidateConfig(t *testing.T) {
+	tests := []struct {
+		name    string
+		config  *entrypoint.Config
+		wantErr bool
+	}{
+		{"valid config", &entrypoint.Config{VolumeTickInterval: 10 * time.Second, SpaceTickInterval: 10 * time.Second, ArrayTickInterval: 10 * time.Second, FileSystemTickInterval: 10 * time.Second}, false},
+		{"nil config", nil, true},
+		{"invalid volume tick interval", &entrypoint.Config{VolumeTickInterval: 1 * time.Second}, true},
+		{"invalid space tick interval", &entrypoint.Config{SpaceTickInterval: 1 * time.Second}, true},
+		{"invalid array tick interval", &entrypoint.Config{ArrayTickInterval: 1 * time.Second}, true},
+		{"invalid filesystem tick interval", &entrypoint.Config{FileSystemTickInterval: 1 * time.Second}, true},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			err := entrypoint.ValidateConfig(tt.config)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("ValidateConfig() error = %v, wantErr %v", err, tt.wantErr)
+			}
+		})
+	}
+}
diff --git a/internal/k8s/k8sapi_test.go b/internal/k8s/k8sapi_test.go
index f9e1b7b..808c03c 100644
--- a/internal/k8s/k8sapi_test.go
+++ b/internal/k8s/k8sapi_test.go
@@ -136,4 +136,21 @@ func Test_NewForConfigError(t *testing.T) {
 	if err != nil {
 		assert.Equal(t, expected, err.Error())
 	}
+	mockClientset := &kubernetes.Clientset{}
+	k8s.NewConfigFn = func(_ *rest.Config) (*kubernetes.Clientset, error) {
+		return mockClientset, nil
+	}
+
+	err = k8s.ConnectFn(k8sapi)
+	assert.NoError(t, err, "ConnectFn should succeed with no error")
+	assert.Equal(t, mockClientset, k8sapi.Client, "Client should be initialized with the mock clientset")
+}
+
+func Test_NewConfigFn(t *testing.T) {
+	t.Run("success", func(t *testing.T) {
+		config := &rest.Config{}
+		clientset, err := k8s.NewConfigFn(config)
+		assert.NoError(t, err, "NewConfigFn should succeed")
+		assert.NotNil(t, clientset, "Clientset should not be nil")
+	})
 }