Add JavaTest

src/test/java/app/model/languages/JavaTest.java

@@ -0,0 +1,89 @@
+package app.model.languages;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+import app.model.ProgrammingLanguage;
+
+public class JavaTest {
+
+  private ProgrammingLanguage lang = new Java();
+  
+  @Test
+  @DisplayName("Test commentLine")
+  public void testCommentLine() {
+    String line = "test";
+
+    assertEquals("// test", lang.commentLine(line));
+    assertEquals("// // test", lang.commentLine(lang.commentLine(line)));
+  }
+
+  @Test
+  @DisplayName("Test unCommentLine")
+  public void testUnCommentLine() {
+    String line = "// // test";
+
+    assertEquals("// test", lang.unCommentLine(line));
+    assertEquals("test", lang.unCommentLine(lang.unCommentLine(line)));
+    assertEquals("test", lang.unCommentLine("test"));
+  }
+
+  @Test
+  @DisplayName("Test combination of commentLine and unCommentLine")
+  public void testCommentUnCommentLine() {
+    String line = "test";
+    String wrapped1 = lang.unCommentLine(lang.commentLine(line));
+    String wrapped2 = lang.unCommentLine(lang.commentLine(wrapped1));
+
+    assertEquals(line, wrapped1);
+    assertEquals(line, wrapped2);
+  }
+
+
+  @Test
+  @DisplayName("Test commentSelection")
+  public void testCommentSelection() {
+    String selection = "This\nis a multiline\nstring";
+
+    assertEquals("/* \n * This\n * is a multiline\n * string\n */", lang.commentSelection(selection));
+    assertEquals(
+      "/* \n * /* \n *  * This\n *  * is a multiline\n *  * string\n *  */\n */",
+      lang.commentSelection(lang.commentSelection(selection))
+    );
+  }
+
+  @Test
+  @DisplayName("Test unCommentSelection")
+  public void testUnCommentSelection() {
+    String selection =  "/* \n * /* \n *  * This\n *  * is a multiline\n *  * string\n *  */\n */";
+
+    assertEquals("/* \n * This\n * is a multiline\n * string\n */", lang.unCommentSelection(selection));
+    assertEquals("This\nis a multiline\nstring", lang.unCommentSelection(lang.unCommentSelection(selection)));
+    assertEquals("This\nis a multiline\nstring", lang.unCommentLine("This\nis a multiline\nstring"));
+  }
+
+  @Test
+  @DisplayName("Test isCommentedLine")
+  public void testIsCommentedLine() {
+    String commentedLine = "// test";
+    String unCommentedLine = "test";
+
+    assertTrue(lang.isCommentedLine(commentedLine));
+    assertFalse(lang.isCommentedLine(unCommentedLine));
+  }
+
+  @Test
+  @DisplayName("Test isCommentedSelection")
+  public void testIsCommentedSelection() {
+    String commentedSelection = "/* \n * test\n */";
+    String unCommentedSelection = "test";
+
+    assertTrue(lang.isCommentedSelection(commentedSelection));
+    assertFalse(lang.isCommentedSelection(unCommentedSelection));
+  }
+
+}