chore: Added testcases for nil responses

Author: bahkauv70

internal/cmd/redis/credentials/create/create_test.go

@@ -216,6 +216,11 @@ func Test_outputResult(t *testing.T) {
 			args:    args{model: inputModel{GlobalFlagModel: &globalflags.GlobalFlagModel{}}, resp: &redis.CredentialsResponse{}},
 			wantErr: false,
 		},
+		{
+			name:    "nil response",
+			args:    args{model: inputModel{GlobalFlagModel: &globalflags.GlobalFlagModel{}}},
+			wantErr: true,
+		},
 	}
 	p := print.NewPrinter()
 	p.Cmd = NewCmd(p)

internal/cmd/redis/credentials/describe/describe_test.go

@@ -260,6 +260,11 @@ func Test_outputResult(t *testing.T) {
 			},
 			wantErr: false,
 		},
+		{
+			name:    "nil response",
+			args:    args{},
+			wantErr: true,
+		},
 	}
 	p := print.NewPrinter()
 	p.Cmd = NewCmd(p)

internal/cmd/redis/instance/create/create_test.go

@@ -485,6 +485,15 @@ func Test_outputResult(t *testing.T) {
 			},
 			wantErr: false,
 		},
+		{
+			name: "nil response",
+			args: args{
+				model:        &inputModel{GlobalFlagModel: &globalflags.GlobalFlagModel{}},
+				projectLabel: "",
+				instanceId:   testMonitoringInstanceId,
+			},
+			wantErr: true,
+		},
 	}
 	p := print.NewPrinter()
 	p.Cmd = NewCmd(p)

internal/cmd/redis/instance/describe/describe_test.go

@@ -233,6 +233,11 @@ func Test_outputResult(t *testing.T) {
 			},
 			wantErr: false,
 		},
+		{
+			name:    "nil response",
+			args:    args{},
+			wantErr: true,
+		},
 		{
 			name: "nil parameter",
 			args: args{