Fix coverage (#187)

Author: ilia-kebets-sonarsource

sonar-flex-plugin/src/test/java/org/sonar/plugins/flex/AnalysisWarningsWrapperTest.java

@@ -0,0 +1,48 @@
+/*
+ * SonarQube Flex Plugin
+ * Copyright (C) 2010-2024 SonarSource SA
+ * mailto:info AT sonarsource DOT com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+package org.sonar.plugins.flex;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.fail;
+
+import java.util.ArrayList;
+import java.util.List;
+import org.junit.jupiter.api.Test;
+
+class AnalysisWarningsWrapperTest {
+
+  @Test
+  void test() {
+    List<String> warnings = new ArrayList<>();
+    AnalysisWarningsWrapper wrapper = new AnalysisWarningsWrapper(warnings::add);
+    wrapper.addUnique("test");
+    assertThat(warnings).containsExactly("test");
+  }
+
+  @Test
+  void test_null() {
+    try {
+      AnalysisWarningsWrapper wrapper = new AnalysisWarningsWrapper(null);
+      wrapper.addUnique("test");
+    } catch (Exception e) {
+      fail("No exception should be thrown");
+    }
+  }
+}