unit tests for logging utility

unit tests for logging utility

src/test/java/com/salesforce/dataloader/util/LoggingUtilTest.java

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+/*
+ * Copyright (c) 2015, salesforce.com, inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ *    Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *    following disclaimer.
+ *
+ *    Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *    the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ *    Neither the name of salesforce.com, inc. nor the names of its contributors may be used to endorse or
+ *    promote products derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+package com.salesforce.dataloader.util;
+import org.apache.logging.log4j.Level; 
+import org.apache.logging.log4j.LogManager; 
+import org.apache.logging.log4j.Logger; 
+import org.junit.Assert; import org.junit.Test;
+import java.io.File; 
+import java.io.FileInputStream; 
+import java.io.IOException; 
+import java.util.Properties;
+import java.io.FileOutputStream;
+
+public class LoggingUtilTest {
+    @Test
+    public void testInitializeLog() throws IOException {
+        // Setup
+        File tempFile = File.createTempFile("log4j2", ".properties");
+        tempFile.deleteOnExit();
+        Properties props = new Properties();
+        props.setProperty("rootLogger.level", "DEBUG");
+        props.store(new FileOutputStream(tempFile), null);
+        System.setProperty(LoggingUtil.SYS_PROP_LOG4J2_CONFIG_FILE, tempFile.getAbsolutePath());
+
+        // Test
+        LoggingUtil.initializeLog(null);
+
+        // Verify
+        Logger logger = LogManager.getLogger(LoggingUtil.class);
+        Assert.assertNotNull(logger);
+        Assert.assertEquals(Level.DEBUG, logger.getLevel());
+    }
+
+    @Test
+    public void testSetLoggingLevel() {
+        Logger logger = LogManager.getLogger(LoggingUtil.class);
+        LoggingUtil.setLoggingLevel("INFO");
+        Assert.assertEquals(Level.INFO, logger.getLevel());
+    }
+
+    @Test
+    public void testSetLoggingLevelInPropertiesFile() throws IOException {
+        // Setup
+        File tempFile = File.createTempFile("log4j2", ".properties");
+        tempFile.deleteOnExit();
+        Properties props = new Properties();
+        props.setProperty("rootLogger.level", "DEBUG");
+        props.store(new FileOutputStream(tempFile), null);
+        System.setProperty(LoggingUtil.SYS_PROP_LOG4J2_CONFIG_FILE, tempFile.getAbsolutePath());
+
+        // Test
+        LoggingUtil.setLoggingLevel("INFO");
+
+        // Verify
+        Properties updatedProps = new Properties();
+        updatedProps.load(new FileInputStream(tempFile));
+        Assert.assertEquals("INFO", updatedProps.getProperty("rootLogger.level"));
+    }
+
+    @Test
+    public void testGetLoggingConfigFile() {
+        System.setProperty(LoggingUtil.SYS_PROP_LOG4J2_CONFIG_FILE, "junk.properties");
+        String configFile = LoggingUtil.getLoggingConfigFile();
+        Assert.assertNotNull(configFile);
+    }
+
+    @Test
+    public void testGetLoggingLevel() {
+        LoggingUtil.setLoggingLevel("WARN");
+        String level = LoggingUtil.getLoggingLevel();
+        Assert.assertEquals("WARN", level);
+    }
+
+    @Test
+    public void testGetLoggingFilePattern() {
+        String pattern = LoggingUtil.getLoggingFilePattern();
+        Assert.assertNotNull(pattern);
+    }
+
+    @Test
+    public void testGetLatestLoggingFile() {
+        String latestFile = LoggingUtil.getLatestLoggingFile();
+        Assert.assertNotNull(latestFile);
+    }
+}