{testName: "root:latest", Input: "root:latest", Output: "root:latest"},
	} {
		t.Run(testCase.testName, func(t *testing.T) {
			image, err := applyDefaultImageTag(testCase.Input)
			if err != nil {
				t.Errorf("applyDefaultImageTag(%s) failed: %v", testCase.Input, err)
			} else if image != testCase.Output {
				t.Errorf("Expected image reference: %q, got %q", testCase.Output, image)
			}
		})
	}