Add base and JUL tests to test logger hierarchy
authorAlexandre Montplaisir <alexmonthy@voxpopuli.im>
Thu, 2 Jun 2016 05:14:06 +0000 (01:14 -0400)
committerAlexandre Montplaisir <alexmonthy@voxpopuli.im>
Thu, 2 Jun 2016 21:52:44 +0000 (17:52 -0400)
Make sure "lttng list" correctly includes parent/child
loggers that may be visible by UST, even if they themselves
do not have LTTng log handlers attached.

Signed-off-by: Alexandre Montplaisir <alexmonthy@voxpopuli.im>
lttng-ust-java-tests-common/src/main/java/org/lttng/ust/agent/integration/events/LoggerHierachyListITBase.java [new file with mode: 0644]
lttng-ust-java-tests-jul/src/test/java/org/lttng/ust/agent/integration/events/JulLegacyApiLoggerHierarchyListIT.java [new file with mode: 0644]
lttng-ust-java-tests-jul/src/test/java/org/lttng/ust/agent/integration/events/JulLoggerHierarchyListIT.java [new file with mode: 0644]
pom.xml

diff --git a/lttng-ust-java-tests-common/src/main/java/org/lttng/ust/agent/integration/events/LoggerHierachyListITBase.java b/lttng-ust-java-tests-common/src/main/java/org/lttng/ust/agent/integration/events/LoggerHierachyListITBase.java
new file mode 100644 (file)
index 0000000..5e1af16
--- /dev/null
@@ -0,0 +1,186 @@
+/*
+ * Copyright (C) 2016, EfficiOS Inc., Alexandre Montplaisir <alexmonthy@efficios.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU 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.lttng.ust.agent.integration.events;
+
+import static org.junit.Assert.assertEquals;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runners.Parameterized.Parameters;
+import org.lttng.tools.ILttngSession;
+
+/**
+ * Base class testing the "lttng list" command when using loggers organized as a
+ * hierarchy.
+ *
+ * For example, if a "org.myapp" logger exists and has a LTTng handler attached,
+ * a "org.myapp.mycomponent" logger should show up in "lttng list", even if
+ * itself does not have a handler, because its parent's handler can catch the
+ * log events as UST tracepoints.
+ *
+ * @author Alexandre Montplaisir
+ */
+public abstract class LoggerHierachyListITBase {
+
+    protected static final String PARENT_LOGGER = "org.lttng";
+    protected static final String CHILD_LOGGER = "org.lttng.mycomponent";
+
+    protected final boolean parentLoggerActive;
+    protected final boolean parentLoggerHasHandler;
+    protected final boolean childLoggerActive;
+    protected final boolean childLoggerHasHandler;
+
+    private ILttngSession session;
+
+    // ------------------------------------------------------------------------
+    // Test parameter definition
+    // ------------------------------------------------------------------------
+
+    /**
+     * Generator for the test parameters.
+     *
+     * Generates all possible combinations of the 4 constructor parameters,
+     * except "parentActive" is necessarily true when "hasHandler" is true for a
+     * given logger.
+     *
+     * @return The test parameters
+     */
+    @Parameters(name = "{index}: parentActive={0}, parentHasHandler={1}, childActive={2}, childHasHandler={3}")
+    public static Iterable<Object[]> testCases() {
+        /*
+         * Kept the whole array for clarity, but some cases are commented out:
+         * it is impossible to attach an handler if the logger itself is not
+         * defined!
+         */
+        return Arrays.asList(new Object[][] {
+                { Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE },
+                { Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.FALSE },
+//                { Boolean.TRUE, Boolean.TRUE, Boolean.FALSE, Boolean.TRUE },
+                { Boolean.TRUE, Boolean.TRUE, Boolean.FALSE, Boolean.FALSE },
+
+                { Boolean.TRUE, Boolean.FALSE, Boolean.TRUE, Boolean.TRUE },
+                { Boolean.TRUE, Boolean.FALSE, Boolean.TRUE, Boolean.FALSE },
+//                { Boolean.TRUE, Boolean.FALSE, Boolean.FALSE, Boolean.TRUE },
+                { Boolean.TRUE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE },
+
+//                { Boolean.FALSE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE },
+//                { Boolean.FALSE, Boolean.TRUE, Boolean.TRUE, Boolean.FALSE },
+//                { Boolean.FALSE, Boolean.TRUE, Boolean.FALSE, Boolean.TRUE },
+//                { Boolean.FALSE, Boolean.TRUE, Boolean.FALSE, Boolean.FALSE },
+
+                { Boolean.FALSE, Boolean.FALSE, Boolean.TRUE, Boolean.TRUE },
+                { Boolean.FALSE, Boolean.FALSE, Boolean.TRUE, Boolean.FALSE },
+//                { Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.TRUE },
+                { Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE },
+        });
+    }
+
+    /**
+     * Test constructor
+     *
+     * @param parentLoggerActive
+     *            Parent logger has been instantiated
+     * @param parentLoggerHasHandler
+     *            Parent logger has a LTTng handler attached to it
+     * @param childLoggerActive
+     *            Child logger has been instantiated
+     * @param childLoggerHasHandler
+     *            Child logger has a LTTng handler attached to it
+     */
+    public LoggerHierachyListITBase(boolean parentLoggerActive,
+            boolean parentLoggerHasHandler,
+            boolean childLoggerActive,
+            boolean childLoggerHasHandler) {
+        this.parentLoggerActive = parentLoggerActive;
+        this.parentLoggerHasHandler = parentLoggerHasHandler;
+        this.childLoggerActive = childLoggerActive;
+        this.childLoggerHasHandler = childLoggerHasHandler;
+    }
+
+    protected ILttngSession getSession() {
+        return session;
+    }
+
+    // ------------------------------------------------------------------------
+    // Maintenance
+    // ------------------------------------------------------------------------
+
+    /**
+     * Common test setup
+     */
+    @Before
+    public void testSetup() {
+        session = ILttngSession.createSession(null, getDomain());
+    }
+
+    /**
+     * Common test teardown
+     */
+    @After
+    public void testTeardown() {
+        session.close();
+    }
+
+    // ------------------------------------------------------------------------
+    // Abstract methods
+    // ------------------------------------------------------------------------
+
+    protected abstract ILttngSession.Domain getDomain();
+
+    protected abstract void activateLoggers() throws IOException;
+
+    // ------------------------------------------------------------------------
+    // Common tests
+    // ------------------------------------------------------------------------
+
+    /**
+     * Test the output of the "lttng list" command.
+     *
+     * @throws IOException
+     *             Fails the test
+     */
+    @Test
+    public void testList() throws IOException {
+        activateLoggers();
+
+        List<String> enabledEvents = session.listEvents();
+        List<String> expectedEvents = new ArrayList<>();
+
+        /* Reminder: "hasHandler" implies "isActive" */
+
+        if (parentLoggerHasHandler) {
+            expectedEvents.add(PARENT_LOGGER);
+        }
+        if (childLoggerHasHandler ||
+                (childLoggerActive && parentLoggerHasHandler)) {
+            expectedEvents.add(CHILD_LOGGER);
+        }
+
+        Collections.sort(enabledEvents);
+        Collections.sort(expectedEvents);
+        assertEquals(expectedEvents, enabledEvents);
+    }
+}
diff --git a/lttng-ust-java-tests-jul/src/test/java/org/lttng/ust/agent/integration/events/JulLegacyApiLoggerHierarchyListIT.java b/lttng-ust-java-tests-jul/src/test/java/org/lttng/ust/agent/integration/events/JulLegacyApiLoggerHierarchyListIT.java
new file mode 100644 (file)
index 0000000..a9ecf8c
--- /dev/null
@@ -0,0 +1,184 @@
+/*
+ * Copyright (C) 2016, EfficiOS Inc., Alexandre Montplaisir <alexmonthy@efficios.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU 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.lttng.ust.agent.integration.events;
+
+import static org.junit.Assert.assertEquals;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.logging.LogManager;
+import java.util.logging.Logger;
+
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+import org.lttng.tools.ILttngSession.Domain;
+import org.lttng.ust.agent.LTTngAgent;
+import org.lttng.ust.agent.utils.JulTestUtils;
+
+/**
+ * Implementation of {@link LoggerHierachyListITBase} for the JUL part of the
+ * legacy LTTngAgent API.
+ *
+ * @author Alexandre Montplaisir
+ */
+@SuppressWarnings("deprecation")
+@RunWith(Parameterized.class)
+public class JulLegacyApiLoggerHierarchyListIT extends LoggerHierachyListITBase {
+
+    private LTTngAgent agent;
+    private Logger parentLogger;
+    private Logger childLogger;
+
+    /**
+     * Test constructor
+     *
+     * @param parentLoggerActive
+     *            Parent logger has been instantiated
+     * @param parentLoggerHasHandler
+     *            Parent logger has a LTTng handler attached to it
+     * @param childLoggerActive
+     *            Child logger has been instantiated
+     * @param childLoggerHasHandler
+     *            Child logger has a LTTng handler attached to it
+     */
+    public JulLegacyApiLoggerHierarchyListIT(boolean parentLoggerActive,
+            boolean parentLoggerHasHandler,
+            boolean childLoggerActive,
+            boolean childLoggerHasHandler) {
+        /* Set by parameters defined in the base class */
+        super(parentLoggerActive,
+                parentLoggerHasHandler,
+                childLoggerActive,
+                childLoggerHasHandler);
+    }
+
+    // ------------------------------------------------------------------------
+    // Maintenance
+    // ------------------------------------------------------------------------
+
+    /**
+     * Class setup
+     */
+    @BeforeClass
+    public static void julClassSetup() {
+        JulTestUtils.testClassSetup();
+    }
+
+    /**
+     * Class cleanup
+     */
+    @AfterClass
+    public static void julClassCleanup() {
+        JulTestUtils.testClassCleanup();
+    }
+
+    /**
+     * Test setup
+     */
+    @SuppressWarnings("static-method")
+    @Before
+    public void setup() {
+        LogManager.getLogManager().reset();
+        System.gc();
+    }
+
+    /**
+     * Test cleanup
+     */
+    @After
+    public void cleanup() {
+        agent.dispose();
+
+        if (parentLogger != null) {
+            parentLogger = null;
+        }
+
+        if (childLogger != null) {
+            childLogger = null;
+        }
+
+        LogManager.getLogManager().reset();
+        System.gc();
+    }
+
+    // ------------------------------------------------------------------------
+    // Abstract methods
+    // ------------------------------------------------------------------------
+
+    @Override
+    protected Domain getDomain() {
+        return Domain.JUL;
+    }
+
+    @Override
+    protected void activateLoggers() throws IOException {
+        agent = LTTngAgent.getLTTngAgent();
+
+        /*
+         * There is no notion of "hasHandler" for the legacy API: there is only
+         * one log handler attached to the root logger, so there are no handlers
+         * to specific events/loggers.
+         */
+
+        if (parentLoggerActive) {
+            parentLogger = Logger.getLogger(PARENT_LOGGER);
+        }
+
+        if (childLoggerActive) {
+            childLogger = Logger.getLogger(CHILD_LOGGER);
+        }
+    }
+
+    // ------------------------------------------------------------------------
+    // Overridden tests
+    // ------------------------------------------------------------------------
+
+    /**
+     * Due to how the legacy agent works, there is no notion of "hasHandler". If
+     * the logger exists, it will be visible in "lttng list" because the single
+     * log handler is attached to the root logger.
+     */
+    @Override
+    @Test
+    public void testList() throws IOException {
+        activateLoggers();
+
+        List<String> enabledEvents = getSession().listEvents();
+        List<String> expectedEvents = new ArrayList<>();
+
+        if (parentLoggerActive) {
+            expectedEvents.add(PARENT_LOGGER);
+        }
+        if (childLoggerActive) {
+            expectedEvents.add(CHILD_LOGGER);
+        }
+
+        Collections.sort(enabledEvents);
+        Collections.sort(expectedEvents);
+        assertEquals(expectedEvents, enabledEvents);
+    }
+
+}
diff --git a/lttng-ust-java-tests-jul/src/test/java/org/lttng/ust/agent/integration/events/JulLoggerHierarchyListIT.java b/lttng-ust-java-tests-jul/src/test/java/org/lttng/ust/agent/integration/events/JulLoggerHierarchyListIT.java
new file mode 100644 (file)
index 0000000..4254aaf
--- /dev/null
@@ -0,0 +1,153 @@
+/*
+ * Copyright (C) 2016, EfficiOS Inc., Alexandre Montplaisir <alexmonthy@efficios.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU 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.lttng.ust.agent.integration.events;
+
+import java.io.IOException;
+import java.util.logging.Handler;
+import java.util.logging.LogManager;
+import java.util.logging.Logger;
+
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+import org.lttng.tools.ILttngSession.Domain;
+import org.lttng.ust.agent.jul.LttngLogHandler;
+import org.lttng.ust.agent.utils.JulTestUtils;
+
+/**
+ * Implementation of {@link LoggerHierachyListITBase} for JUL log handlers.
+ *
+ * @author Alexandre Montplaisir
+ */
+@RunWith(Parameterized.class)
+public class JulLoggerHierarchyListIT extends LoggerHierachyListITBase {
+
+    private Logger parentLogger;
+    private Logger childLogger;
+
+    private Handler parentHandler;
+    private Handler childHandler;
+
+    /**
+     * Test constructor
+     *
+     * @param parentLoggerActive
+     *            Parent logger has been instantiated
+     * @param parentLoggerHasHandler
+     *            Parent logger has a LTTng handler attached to it
+     * @param childLoggerActive
+     *            Child logger has been instantiated
+     * @param childLoggerHasHandler
+     *            Child logger has a LTTng handler attached to it
+     */
+    public JulLoggerHierarchyListIT(boolean parentLoggerActive,
+            boolean parentLoggerHasHandler,
+            boolean childLoggerActive,
+            boolean childLoggerHasHandler) {
+        /* Set by parameters defined in the base class */
+        super(parentLoggerActive,
+                parentLoggerHasHandler,
+                childLoggerActive,
+                childLoggerHasHandler);
+    }
+
+    // ------------------------------------------------------------------------
+    // Maintenance
+    // ------------------------------------------------------------------------
+
+    /**
+     * Class setup
+     */
+    @BeforeClass
+    public static void julClassSetup() {
+        JulTestUtils.testClassSetup();
+    }
+
+    /**
+     * Class cleanup
+     */
+    @AfterClass
+    public static void julClassCleanup() {
+        JulTestUtils.testClassCleanup();
+    }
+
+    /**
+     *
+     */
+    @After
+    public void cleanup() {
+        if (parentLogger != null) {
+            if (parentHandler != null) {
+                parentLogger.removeHandler(parentHandler);
+                parentHandler.close();
+                parentHandler = null;
+            }
+            parentLogger = null;
+        }
+
+        if (childLogger != null) {
+            if (childHandler != null) {
+                childLogger.removeHandler(childHandler);
+                childHandler.close();
+                childHandler = null;
+            }
+            childLogger = null;
+        }
+
+        /*
+         * Kind of hackish, but it's the only way to ensure that loggers are
+         * really removed in-between tests, since LogManager does not provide a
+         * way to forcibly remove a logger, and it doesn't seem like it will any
+         * time soon, see http://bugs.java.com/view_bug.do?bug_id=4811930
+         */
+        LogManager.getLogManager().reset();
+        System.gc();
+    }
+
+    // ------------------------------------------------------------------------
+    // Abstract methods
+    // ------------------------------------------------------------------------
+
+    @Override
+    protected Domain getDomain() {
+        return Domain.JUL;
+    }
+
+    @Override
+    protected void activateLoggers() throws IOException {
+        if (parentLoggerActive) {
+            parentLogger = Logger.getLogger(PARENT_LOGGER);
+            if (parentLoggerHasHandler) {
+                parentHandler = new LttngLogHandler();
+                parentLogger.addHandler(parentHandler);
+            }
+        }
+
+        if (childLoggerActive) {
+            childLogger = Logger.getLogger(CHILD_LOGGER);
+            if (childLoggerHasHandler) {
+                childHandler = new LttngLogHandler();
+                childLogger.addHandler(childHandler);
+            }
+        }
+    }
+
+}
diff --git a/pom.xml b/pom.xml
index 786ed97e7e3f08907759a3159e083377abf1931d..642e7ebfe7bbfa99ffea64ea602f8fe4baddcc7a 100644 (file)
--- a/pom.xml
+++ b/pom.xml
     </plugins>
   </build>
 
+  <dependencies>
+    <dependency>
+      <groupId>com.google.guava</groupId>
+      <artifactId>guava</artifactId>
+      <version>19.0</version>
+    </dependency>
+  </dependencies>
+
   <dependencyManagement>
     <dependencies>
       <!-- System dependencies, should have been installed by UST -->
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