fix codecov

pkg/daemon/criruntime/imageruntime/docker_test.go

@@ -0,0 +1,47 @@
+package imageruntime
+
+import (
+	"testing"
+
+	dockerapi "github.com/docker/docker/client"
+)
+
+func TestCreateRuntimeClientIfNecessary(t *testing.T) {
+	tests := []struct {
+		name          string
+		clientExists  bool
+		expectedError error
+	}{
+		{
+			name:          "ClientAlreadyExists",
+			clientExists:  true,
+			expectedError: nil,
+		},
+		{
+			name:          "ClientDoesNotExist",
+			clientExists:  false,
+			expectedError: nil, // Assuming that dockerapi.NewClientWithOpts does not return an error in this test environment
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			d := &dockerImageService{
+				runtimeURI: "unix:///hostvarrun/docker.sock",
+			}
+			if tt.clientExists {
+				d.client = &dockerapi.Client{}
+			}
+
+			err := d.createRuntimeClientIfNecessary()
+
+			if err != tt.expectedError {
+				t.Errorf("createRuntimeClientIfNecessary() error = %v, expectedError %v", err, tt.expectedError)
+			}
+
+			if !tt.clientExists && d.client == nil {
+				t.Errorf("createRuntimeClientIfNecessary() client was not created")
+			}
+		})
+	}
+}