Unit tests for API examples.

4 files changed, 224 insertions, 0 deletions

diff --git a/org.jacoco.examples.test/src/org/jacoco/examples/ClassInfoTest.java b/org.jacoco.examples.test/src/org/jacoco/examples/ClassInfoTest.java
new file mode 100644
index 00000000..bd4c200e
--- /dev/null
+++ b/org.jacoco.examples.test/src/org/jacoco/examples/ClassInfoTest.java
@@ -0,0 +1,57 @@
+/*******************************************************************************
+ * Copyright (c) 2009, 2013 Mountainminds GmbH & Co. KG and Contributors
+ * 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:
+ *    Marc R. Hoffmann - initial API and implementation
+ *    
+ *******************************************************************************/
+package org.jacoco.examples;
+
+import static org.jacoco.examples.ConsoleOutput.containsLine;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+
+import org.junit.Rule;
+import org.junit.Test;
+
+/**
+ * Tests for {@link ClassInfo}.
+ */
+public class ClassInfoTest {
+
+	@Rule
+	public ConsoleOutput console = new ConsoleOutput();
+
+	@Test
+	public void testRunExample() throws Exception {
+
+		final String[] args = new String[] { createClassFile() };
+		new ClassInfo(console.stream).execute(args);
+
+		console.expect(containsLine("class name:   org/jacoco/examples/ClassInfoTest"));
+		console.expect(containsLine("methods:      3"));
+		console.expect(containsLine("branches:     2"));
+		console.expect(containsLine("complexity:   4"));
+	}
+
+	private String createClassFile() throws IOException {
+		InputStream in = getClass().getResource(
+				getClass().getSimpleName() + ".class").openStream();
+		File f = File.createTempFile("Example", ".class");
+		FileOutputStream out = new FileOutputStream(f);
+		int b;
+		while ((b = in.read()) != -1) {
+			out.write(b);
+		}
+		in.close();
+		out.close();
+		return f.getPath();
+	}
+}
diff --git a/org.jacoco.examples.test/src/org/jacoco/examples/ConsoleOutput.java b/org.jacoco.examples.test/src/org/jacoco/examples/ConsoleOutput.java
new file mode 100644
index 00000000..40ab3d8e
--- /dev/null
+++ b/org.jacoco.examples.test/src/org/jacoco/examples/ConsoleOutput.java
@@ -0,0 +1,70 @@
+/*******************************************************************************
+ * Copyright (c) 2009, 2013 Mountainminds GmbH & Co. KG and Contributors
+ * 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:
+ *    Marc R. Hoffmann - initial API and implementation
+ *    
+ *******************************************************************************/
+package org.jacoco.examples;
+
+import static org.hamcrest.core.Is.is;
+import static org.junit.Assert.assertThat;
+import static org.junit.Assert.fail;
+import static org.junit.matchers.JUnitMatchers.containsString;
+
+import java.io.ByteArrayOutputStream;
+import java.io.PrintStream;
+import java.io.UnsupportedEncodingException;
+
+import org.hamcrest.Matcher;
+import org.junit.rules.ExternalResource;
+
+/**
+ * In-Memory buffer to assert console output.
+ */
+public class ConsoleOutput extends ExternalResource {
+
+	private final ByteArrayOutputStream buffer;
+
+	public final PrintStream stream;
+
+	public ConsoleOutput() {
+		this.buffer = new ByteArrayOutputStream();
+		try {
+			this.stream = new PrintStream(buffer, true, "UTF-8");
+		} catch (UnsupportedEncodingException e) {
+			throw new AssertionError(e.getMessage());
+		}
+	}
+
+	@Override
+	protected void after() {
+		buffer.reset();
+	}
+
+	public static Matcher<String> containsLine(String line) {
+		return containsString(String.format("%s\n", line));
+	}
+
+	public static Matcher<String> isEmpty() {
+		return is("");
+	}
+
+	public String getContents() {
+		try {
+			return new String(buffer.toByteArray(), "UTF-8");
+		} catch (UnsupportedEncodingException e) {
+			fail(e.getMessage());
+			return "";
+		}
+	}
+
+	public void expect(Matcher<String> matcher) {
+		assertThat(getContents(), matcher);
+	}
+
+}
diff --git a/org.jacoco.examples.test/src/org/jacoco/examples/CoreTutorialTest.java b/org.jacoco.examples.test/src/org/jacoco/examples/CoreTutorialTest.java
new file mode 100644
index 00000000..7fea0e4f
--- /dev/null
+++ b/org.jacoco.examples.test/src/org/jacoco/examples/CoreTutorialTest.java
@@ -0,0 +1,38 @@
+/*******************************************************************************
+ * Copyright (c) 2009, 2013 Mountainminds GmbH & Co. KG and Contributors
+ * 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:
+ *    Marc R. Hoffmann - initial API and implementation
+ *    
+ *******************************************************************************/
+package org.jacoco.examples;
+
+import static org.jacoco.examples.ConsoleOutput.containsLine;
+
+import org.junit.Rule;
+import org.junit.Test;
+
+/**
+ * Tests for {@link CoreTutorial}.
+ */
+public class CoreTutorialTest {
+
+	@Rule
+	public ConsoleOutput console = new ConsoleOutput();
+
+	@Test
+	public void testRunExample() throws Exception {
+		new CoreTutorial(console.stream).execute();
+
+		console.expect(containsLine("0 of 3 methods missed"));
+		console.expect(containsLine("1 of 5 complexity missed"));
+		console.expect(containsLine("Line 46: "));
+		console.expect(containsLine("Line 47: green"));
+		console.expect(containsLine("Line 48: yellow"));
+		console.expect(containsLine("Line 49: red"));
+	}
+}
diff --git a/org.jacoco.examples.test/src/org/jacoco/examples/ExecDumpTest.java b/org.jacoco.examples.test/src/org/jacoco/examples/ExecDumpTest.java
new file mode 100644
index 00000000..f35bf89b
--- /dev/null
+++ b/org.jacoco.examples.test/src/org/jacoco/examples/ExecDumpTest.java
@@ -0,0 +1,59 @@
+/*******************************************************************************
+ * Copyright (c) 2009, 2013 Mountainminds GmbH & Co. KG and Contributors
+ * 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:
+ *    Marc R. Hoffmann - initial API and implementation
+ *    
+ *******************************************************************************/
+package org.jacoco.examples;
+
+import static org.jacoco.examples.ConsoleOutput.containsLine;
+import static org.junit.matchers.JUnitMatchers.containsString;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+
+import org.jacoco.core.data.ExecutionData;
+import org.jacoco.core.data.ExecutionDataWriter;
+import org.jacoco.core.data.SessionInfo;
+import org.junit.Rule;
+import org.junit.Test;
+
+/**
+ * Tests for {@link ExecDump}.
+ */
+public class ExecDumpTest {
+
+	@Rule
+	public ConsoleOutput console = new ConsoleOutput();
+
+	@Test
+	public void testRunExample() throws Exception {
+
+		final String file = createExecFile();
+		final String[] args = new String[] { file };
+		new ExecDump(console.stream).execute(args);
+
+		console.expect(containsLine("exec file: " + file));
+		console.expect(containsLine("CLASS ID         HITS/PROBES   CLASS NAME"));
+		console.expect(containsString("Session \"testid\":"));
+		console.expect(containsLine("0000000000001234    2 of   3   foo/MyClass"));
+	}
+
+	private String createExecFile() throws IOException {
+		File f = File.createTempFile("jacoco", ".exec");
+		final FileOutputStream out = new FileOutputStream(f);
+		final ExecutionDataWriter writer = new ExecutionDataWriter(out);
+		writer.visitSessionInfo(new SessionInfo("testid", 1, 2));
+		writer.visitClassExecution(new ExecutionData(0x1234, "foo/MyClass",
+				new boolean[] { false, true, true }));
+		writer.flush();
+		out.close();
+		return f.getPath();
+	}
+}