Add test case to improve the test coverage.

Author: KobayashiD27

pkg/scheduler/framework/plugins/helper/normalize_score_test.go

@@ -55,6 +55,11 @@ func TestDefaultNormalizeScore(t *testing.T) {
 			scores:         []int64{1000, 1, 1, 1},
 			expectedScores: []int64{100, 0, 0, 0},
 		},
+		{
+			reverse:        true,
+			scores:         []int64{0, 1, 1, 1},
+			expectedScores: []int64{100, 0, 0, 0},
+		},
 	}
 
 	for i, test := range tests {