Add syntax highlighting for strings and comments (#43)

2 files changed, 114 insertions, 3 deletions

diff --git a/sonar-css-plugin/src/test/java/org/sonar/css/plugin/CssPluginTest.java b/sonar-css-plugin/src/test/java/org/sonar/css/plugin/CssPluginTest.java
index 3da86ca..33bd4dd 100644
--- a/sonar-css-plugin/src/test/java/org/sonar/css/plugin/CssPluginTest.java
+++ b/sonar-css-plugin/src/test/java/org/sonar/css/plugin/CssPluginTest.java
@@ -28,15 +28,14 @@ import org.sonar.api.utils.Version;
 
 import static org.assertj.core.api.Assertions.assertThat;
 
-
 public class CssPluginTest {
 
   @Test
-  public void count_extensions() throws Exception {
+  public void count_extensions() {
     SonarRuntime runtime = SonarRuntimeImpl.forSonarQube(Version.create(6, 7), SonarQubeSide.SCANNER);
     Plugin.Context context = new Plugin.Context(runtime);
     Plugin underTest = new CssPlugin();
     underTest.define(context);
-    assertThat(context.getExtensions()).hasSize(3);
+    assertThat(context.getExtensions()).hasSize(4);
   }
 }
diff --git a/sonar-css-plugin/src/test/java/org/sonar/css/plugin/MetricSensorTest.java b/sonar-css-plugin/src/test/java/org/sonar/css/plugin/MetricSensorTest.java
new file mode 100644
index 0000000..c93c16a
--- /dev/null
+++ b/sonar-css-plugin/src/test/java/org/sonar/css/plugin/MetricSensorTest.java
@@ -0,0 +1,112 @@
+/*
+ * SonarCSS
+ * Copyright (C) 2018-2018 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.css.plugin;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.List;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
+import org.sonar.api.batch.fs.internal.DefaultInputFile;
+import org.sonar.api.batch.fs.internal.TestInputFileBuilder;
+import org.sonar.api.batch.sensor.highlighting.TypeOfText;
+import org.sonar.api.batch.sensor.internal.DefaultSensorDescriptor;
+import org.sonar.api.batch.sensor.internal.SensorContextTester;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class MetricSensorTest {
+
+  private DefaultInputFile inputFile;
+  private SensorContextTester sensorContext;
+
+  @Rule
+  public TemporaryFolder tempFolder = new TemporaryFolder();
+
+  @Before
+  public void setUp() {
+    sensorContext = SensorContextTester.create(tempFolder.getRoot());
+  }
+
+  @Test
+  public void should_describe() {
+    DefaultSensorDescriptor desc = new DefaultSensorDescriptor();
+    new MetricSensor().describe(desc);
+
+    assertThat(desc.languages()).containsOnly("css");
+  }
+
+  @Test
+  public void empty_input() throws Exception {
+    highlight("foo");
+
+    assertThat(sensorContext.highlightingTypeAt(inputFile.key(), 1, 0)).isEmpty();
+    assertThat(sensorContext.highlightingTypeAt(inputFile.key(), 1, 1)).isEmpty();
+  }
+
+  @Test
+  public void singleline_multiline_comment() throws IOException {
+    highlight("/* some comment */");
+
+    assertHighlighting(1, 1, 17, TypeOfText.COMMENT);
+  }
+
+  @Test
+  public void multiline_comment() throws IOException {
+    String content = "/* some comment\nmultiline */";
+    highlight(content);
+
+    assertHighlighting(1, 1, 15, TypeOfText.COMMENT);
+    assertHighlighting(2, 1, 11, TypeOfText.COMMENT);
+  }
+
+  @Test
+  public void string() throws IOException {
+    String content = "\"foo\"";
+    highlight(content);
+
+    assertHighlighting(1, 1, content.length() - 1, TypeOfText.STRING);
+  }
+
+  private void highlight(String content) throws IOException {
+    File file = tempFolder.newFile();
+    inputFile = new TestInputFileBuilder("moduleKey", file.getName())
+      .setLanguage("css")
+      .setContents(content)
+      .build();
+
+    sensorContext.fileSystem().add(inputFile);
+
+    new MetricSensor().execute(sensorContext);
+  }
+
+  private void assertHighlighting(int line, int column, int length, TypeOfText type) {
+    if (column < 1) {
+      throw new IllegalStateException("Column should be greater than or equal to 1");
+    }
+
+    for (int i = column; i < column + length; i++) {
+      List<TypeOfText> typeOfTexts = sensorContext.highlightingTypeAt(inputFile.key(), line, i);
+      assertThat(typeOfTexts).containsOnly(type);
+    }
+  }
+}