Add comments to GetCommonLabelName in fluid/pkg/ddc/base/validate_test.go.

Signed-off-by: mt <599155198@qq.com>

Author: github2134243

pkg/ddc/base/validate_test.go

@@ -84,6 +84,7 @@ func (m *mockRuntimeInfoForValidate) GetPersistentVolumeName() string  { return
 func (m *mockRuntimeInfoForValidate) GetLabelNameForMemory() string    { return "" }
 func (m *mockRuntimeInfoForValidate) GetLabelNameForDisk() string      { return "" }
 func (m *mockRuntimeInfoForValidate) GetLabelNameForTotal() string     { return "" }
+// GetCommonLabelName returns the common label name.
 func (m *mockRuntimeInfoForValidate) GetCommonLabelName() string       { return "" }
 func (m *mockRuntimeInfoForValidate) GetFuseLabelName() string         { return "" }
 func (m *mockRuntimeInfoForValidate) GetRuntimeLabelName() string      { return "" }