Added more tests.

codan/org.eclipse.cdt.codan.core.test/src/org/eclipse/cdt/codan/internal/checkers/externaltool/CppcheckOutputParserTest.java

@@ -0,0 +1,111 @@
+/*******************************************************************************
+ * Copyright (c) 2012 Google, Inc.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Alex Ruiz  - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.cdt.codan.internal.checkers.externaltool;
+
+import org.eclipse.cdt.codan.core.externaltool.IProblemDisplay;
+import org.eclipse.cdt.codan.core.externaltool.InvocationParameters;
+import org.eclipse.cdt.codan.core.model.IProblemLocation;
+import org.eclipse.cdt.codan.core.test.CodanTestCase;
+import org.eclipse.core.resources.IResource;
+
+/**
+ * Tests for <code>{@link CppcheckOutputParser}</code>.
+ *
+ * @author alruiz@google.com (Alex Ruiz)
+ */
+@SuppressWarnings("nls")
+public class CppcheckOutputParserTest extends CodanTestCase {
+	private static final String MATCHING_LINE_FORMAT = "[%s:%d]: (%s) %s";
+
+	private ProblemDisplayStub problemDisplay;
+
+	private CppcheckOutputParser parser;
+
+	@Override
+	public void setUp() throws Exception {
+		super.setUp();
+		problemDisplay = new ProblemDisplayStub();
+		loadcode("void f(int x) {}", "test.cpp");
+		InvocationParameters parameters = new InvocationParameters(currentIFile, currentIFile,
+				actualFilePath(), null);
+		parser = new CppcheckOutputParser(parameters, problemDisplay);
+	}
+
+	public void testProblemIsReportedWhenParsingMatchingLine() {
+		int lineNumber = 2;
+		String severity = "warning";
+		String description = "The scope of the variable 'i' can be reduced";
+		boolean parsed = parser.parse(createMatchingLine(lineNumber, severity, description));
+		assertTrue(parsed);
+		problemDisplay.assertThatLocationHasFile(currentIFile);
+		problemDisplay.assertThatLocationHasLineNumber(lineNumber);
+		problemDisplay.assertThatLocationHasNoStartingAndEndingChars();
+		problemDisplay.assertThatReceivedDescription(description);
+		problemDisplay.assertThatReceivedSeverity(severity);
+	}
+
+	private String createMatchingLine(int lineNumber, String severity, String description) {
+		return String.format(MATCHING_LINE_FORMAT, actualFilePath(), lineNumber, severity, description);
+	}
+
+	private String actualFilePath() {
+		return currentIFile.getLocation().toOSString();
+	}
+
+	public void testProblemIsNotReportedWhenLineDoesNotMatch() {
+		boolean parsed = parser.parse("Checking usage of global functions..");
+		assertFalse(parsed);
+		problemDisplay.assertThatProblemWasNotReported();
+	}
+
+	private static class ProblemDisplayStub implements IProblemDisplay {
+		private boolean problemReported;
+		private IProblemLocation location;
+		private String description;
+		private String severity;
+
+		public void reportProblem(IProblemLocation location, String description) {
+			throw new UnsupportedOperationException();
+		}
+
+		public void reportProblem(IProblemLocation location, String description, String severity) {
+			problemReported = true;
+			this.location = location;
+			this.description = description;
+			this.severity = severity;
+		}
+
+		void assertThatLocationHasFile(IResource expected) {
+			assertSame(expected, location.getFile());
+		}
+
+		void assertThatLocationHasLineNumber(int expected) {
+			assertEquals(expected, location.getLineNumber());
+		}
+
+		void assertThatLocationHasNoStartingAndEndingChars() {
+			assertEquals(-1, location.getStartingChar());
+			assertEquals(-1, location.getEndingChar());
+		}
+
+		void assertThatReceivedDescription(String expected) {
+			assertEquals(expected, description);
+		}
+
+		void assertThatReceivedSeverity(String expected) {
+			assertEquals(expected, severity);
+		}
+
+		void assertThatProblemWasNotReported() {
+			assertFalse(problemReported);
+		}
+	}
+}

codan/org.eclipse.cdt.codan.core.test/src/org/eclipse/cdt/codan/internal/core/externaltool/ExternalToolInvokerTest.java

@@ -101,7 +101,9 @@ public class ExternalToolInvokerTest extends CodanTestCase {
 	// class C {
 	// };
 	public void testInvokesProcessCorrectly() throws Throwable {
-		loadcode(getAboveComment());
+		String aboveComment = getAboveComment();
+		System.out.println(aboveComment);
+		loadcode(aboveComment);
 		String expectedCommand = expectedCommand();
 		InvocationParameters parameters = new InvocationParameters(currentIFile, currentIFile,
 				actualFilePath(), workingDirectory);

codan/org.eclipse.cdt.codan.core/src/org/eclipse/cdt/codan/internal/core/externaltool/ExternalToolInvoker.java

@@ -49,7 +49,7 @@ public class ExternalToolInvoker {
 	}
 
 	/**
-	 * Constructor.
+	 * Constructor, for testing purposes only.
 	 * @param consolePrinterProvider creates an Eclipse console that uses the name of an external
 	 *        tool as its own.
 	 * @param processInvoker executes a command in a separate process.
@@ -72,8 +72,8 @@ public class ExternalToolInvoker {
 	 * @throws Throwable if the external tool cannot be launched.
 	 */
 	public void invoke(InvocationParameters parameters, ConfigurationSettings configurationSettings,
-			IArgsSeparator argsSeparator,
-			List<AbstractOutputParser> parsers) throws InvocationFailure, Throwable {
+			IArgsSeparator argsSeparator, List<AbstractOutputParser> parsers)
+					throws InvocationFailure, Throwable {
 		IPath executablePath = executablePath(configurationSettings);
 		String[] args = argsToPass(parameters, configurationSettings, argsSeparator);
 		boolean shouldDisplayOutput = configurationSettings.getShouldDisplayOutput().getValue();
@@ -92,9 +92,9 @@ public class ExternalToolInvoker {
 
 	private String[] argsToPass(InvocationParameters parameters,
 			ConfigurationSettings configurationSettings, IArgsSeparator argsSeparator) {
-		String[] configuredArgs = configuredArgs(configurationSettings, argsSeparator);
 		String actualFilePath = parameters.getActualFilePath();
-		return addFilePathToArgs(actualFilePath, configuredArgs);
+		String[] args = configuredArgs(configurationSettings, argsSeparator);
+		return addFilePathToArgs(actualFilePath, args);
 	}
 
 	private String[] configuredArgs(ConfigurationSettings configurationSettings,
@@ -168,6 +168,7 @@ public class ExternalToolInvoker {
 			}
 		}
 	}
+
 	private void reset(List<AbstractOutputParser> parsers) {
 		for (AbstractOutputParser parser : parsers) {
 			parser.reset();