Add comments to TestParseReportSummary in pkg/ddc/alluxio/report_test.go.

[Scj752]

Which function do you want to add comments to?

TestParseReportSummary in pkg/ddc/alluxio/report_test.go

What comments do you want to add?

// TestParseReportSummary tests the parseReportSummary method of AlluxioEngine.
// It verifies that the method correctly parses the Alluxio report summary string
// and extracts the cache capacity and cached size information.
//
// The test case includes:
// - A mock Alluxio report summary string (mockAlluxioReportSummaryForParseReport)
// - Expected cacheStates output with cacheCapacity and cached values
//
// The test compares the parsed output with expected values and reports any discrepancies.
// This ensures the parsing logic handles the Alluxio report summary format correctly.