increase codecov

Author: MaksymMalicki

rpc/v10/response_flags_test.go

@@ -56,3 +56,57 @@ func TestResponseFlags_UnmarshalJSON(t *testing.T) {
 		})
 	}
 }
+
+func TestSubscriptionTags_UnmarshalJSON(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		name          string
+		json          string
+		expected      rpcv10.SubscriptionTags
+		expectedError string
+	}{
+		{
+			name:     "empty array",
+			json:     `[]`,
+			expected: rpcv10.SubscriptionTags{IncludeProofFacts: false},
+		},
+		{
+			name:     "array with INCLUDE_PROOF_FACTS",
+			json:     `["INCLUDE_PROOF_FACTS"]`,
+			expected: rpcv10.SubscriptionTags{IncludeProofFacts: true},
+		},
+		{
+			name:          "array with unknown flag and valid flag",
+			json:          `["INCLUDE_PROOF_FACTS", "UNKNOWN_FLAG"]`,
+			expectedError: "unknown flag: UNKNOWN_FLAG",
+		},
+		{
+			name:          "case sensitive",
+			json:          `["include_proof_facts"]`,
+			expectedError: "unknown flag: include_proof_facts",
+		},
+		{
+			name:          "invalid JSON",
+			json:          `{"not": "an array"}`,
+			expectedError: "cannot unmarshal",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+			var tags rpcv10.SubscriptionTags
+			err := json.Unmarshal([]byte(tt.json), &tags)
+
+			if tt.expectedError != "" {
+				require.Error(t, err)
+				require.Contains(t, err.Error(), tt.expectedError)
+				return
+			}
+
+			require.NoError(t, err)
+			require.Equal(t, tt.expected, tags)
+		})
+	}
+}