feat: add unit tests for sanity check

jogerj · jogerj · commit 57f74a4021ef · 2025-06-28T02:33:39.000+02:00
Signed-off-by: jogerj &lt;30559735+jogerj@users.noreply.github.com&gt;
diff --git a/minify-html-java/pom.xml b/minify-html-java/pom.xml
@@ -46,6 +46,7 @@
 
     <properties>
         <java.version>1.8</java.version>
+        <junit.version>5.9.3</junit.version>
         <lombok.version>1.18.38</lombok.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
@@ -58,6 +59,12 @@
             <version>${lombok.version}</version>
             <scope>provided</scope>
         </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter</artifactId>
+            <version>${junit.version}</version>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <build>
@@ -110,6 +117,12 @@
                 </executions>
             </plugin>
 
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>3.5.2</version>
+            </plugin>
+
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-gpg-plugin</artifactId>
diff --git a/minify-html-java/src/test/java/in/wilsonl/minifyhtml/MinifyHtmlTest.java b/minify-html-java/src/test/java/in/wilsonl/minifyhtml/MinifyHtmlTest.java
@@ -0,0 +1,26 @@
+package in.wilsonl.minifyhtml;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+class MinifyHtmlTest {
+
+  static final Configuration DEFAULT_CONFIG = new Configuration.Builder().build();
+
+  @Test
+  void testMinifyHtmlCallsNativeFunction() {
+    final String input = "<html>   <body>   Hello   World!   </body>   </html>";
+    final String expected = "<body>Hello World!";
+    assertEquals(expected, MinifyHtml.minify(input, DEFAULT_CONFIG), "Basic HTML minification failed");
+    assertEquals("", MinifyHtml.minify("", DEFAULT_CONFIG));
+  }
+
+  @Test
+  void testNullParametersHandled() {
+    assertThrows(IllegalArgumentException.class, () -> MinifyHtml.minify(null, DEFAULT_CONFIG));
+    assertThrows(IllegalArgumentException.class, () -> MinifyHtml.minify("<html></html>", null));
+    assertThrows(IllegalArgumentException.class, () -> MinifyHtml.minify(null, null));
+  }
+}
