fix confusing matching test

Signed-off-by: Sylwester Piskozub <sylwesterpiskozub@gmail.com>

Author: Piskoo

pkg/policies/engine/rego/rego_test.go

@@ -341,18 +341,18 @@ func TestRego_MatchesParameters(t *testing.T) {
 		Source: regoContent,
 	}
 
-	t.Run("high severity matches medium expectation", func(t *testing.T) {
+	t.Run("high expectation matches low severity", func(t *testing.T) {
 		matches, err := r.MatchesParameters(context.TODO(), policy,
-			map[string]string{"severity": "high"},
-			map[string]string{"severity": "medium"})
+			map[string]string{"severity": "low"},
+			map[string]string{"severity": "high"})
 		require.NoError(t, err)
 		assert.True(t, matches)
 	})
 
-	t.Run("low severity does not match high expectation", func(t *testing.T) {
+	t.Run("medium expectation does not match high severity", func(t *testing.T) {
 		matches, err := r.MatchesParameters(context.TODO(), policy,
-			map[string]string{"severity": "low"},
-			map[string]string{"severity": "high"})
+			map[string]string{"severity": "high"},
+			map[string]string{"severity": "medium"})
 		require.NoError(t, err)
 		assert.False(t, matches)
 	})

pkg/policies/engine/rego/testfiles/matches_parameters.rego

@@ -15,6 +15,6 @@ matches_parameters := result {
     eval_idx := severity_index(eval_severity)
     expected_idx := severity_index(expected_severity)
 
-    # Evaluation severity must be >= expected severity
-    result := eval_idx >= expected_idx
+    # Expected severity must be >= evaluation severity
+    result := expected_idx >= eval_idx
 }