Add emptyTest

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

@@ -0,0 +1,77 @@
+package app.model.languages;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+import app.model.ProgrammingLanguage;
+
+public class EmptyTest {
+
+  private ProgrammingLanguage lang = new Empty();
+  
+  @Test
+  @DisplayName("Test commentLine")
+  public void testCommentLine() {
+    String line = "test";
+
+    assertEquals(line, lang.commentLine(line));
+  }
+
+  @Test
+  @DisplayName("Test unCommentLine")
+  public void testUnCommentLine() {
+    String line = "test";
+
+    assertEquals(line, 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(selection, lang.commentSelection(selection));
+    assertEquals(selection, lang.commentSelection(lang.commentSelection(selection)));
+  }
+
+  @Test
+  @DisplayName("Test unCommentSelection")
+  public void testUnCommentSelection() {
+    String selection = "This\nis a multiline\nstring";
+
+    assertEquals(selection, lang.unCommentSelection(selection));
+    assertEquals(selection, lang.unCommentSelection(lang.unCommentSelection(selection)));
+  }
+
+  @Test
+  @DisplayName("Test isCommentedLine")
+  public void testIsCommentedLine() {
+    String line = "test";
+
+    assertFalse(lang.isCommentedLine(line));
+  }
+
+  @Test
+  @DisplayName("Test isCommentedSelection")
+  public void testIsCommentedSelection() {
+    String selection = "test";
+
+    assertFalse(lang.isCommentedSelection(selection));
+  }
+  
+}