8159126: Add test to validate DriverManager.println output when DriverManager is initially loaded
authorlancea
Thu, 15 Sep 2016 14:59:20 -0400
changeset 40978 3d4aebec46ee
parent 40977 a4b2763babdf
child 40979 df846f0570fc
8159126: Add test to validate DriverManager.println output when DriverManager is initially loaded Reviewed-by: psandoz, joehw
jdk/test/java/sql/testng/TEST.properties
jdk/test/java/sql/testng/test/sql/othervm/DriverManagerInitTests.java
--- a/jdk/test/java/sql/testng/TEST.properties	Thu Sep 15 11:07:20 2016 -0700
+++ b/jdk/test/java/sql/testng/TEST.properties	Thu Sep 15 14:59:20 2016 -0400
@@ -1,3 +1,4 @@
 # JDBC unit tests uses TestNG
 TestNG.dirs = .
+othervm.dirs = test/sql/othervm
 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/sql/testng/test/sql/othervm/DriverManagerInitTests.java	Thu Sep 15 14:59:20 2016 -0400
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package test.sql.othervm;
+
+import java.io.BufferedReader;
+import java.io.CharArrayReader;
+import java.io.CharArrayWriter;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.sql.Driver;
+import java.sql.DriverManager;
+import java.util.Enumeration;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import static org.testng.Assert.*;
+import org.testng.annotations.Test;
+
+public class DriverManagerInitTests {
+
+    /**
+     * Validate that when DriverManager loads the initial JDBC drivers, that the
+     * output from DriverManager.println is available by verifying that the
+     * String "JDBC DriverManager initialized" is found
+     */
+    @Test
+    public void test() {
+
+        CharArrayWriter cw = new CharArrayWriter();
+        PrintWriter pw = new PrintWriter(cw);
+        DriverManager.setLogWriter(pw);
+        Enumeration<Driver> drivers = DriverManager.getDrivers();
+
+        try (BufferedReader reader = new BufferedReader(new CharArrayReader(cw.toCharArray()))) {
+            boolean result
+                    = reader.lines().anyMatch(
+                            line -> line.matches(".*JDBC DriverManager initialized.*"));
+            assertTrue(result);
+
+        } catch (IOException ex) {
+            Logger.getLogger(DriverManagerInitTests.class.getName()).log(Level.SEVERE, null, ex);
+            fail();
+        }
+
+        // Check to verify that we are not initializing a 2nd time
+        cw = new CharArrayWriter();
+        pw = new PrintWriter(cw);
+        DriverManager.setLogWriter(pw);
+        drivers = DriverManager.getDrivers();
+
+        try (BufferedReader reader = new BufferedReader(new CharArrayReader(cw.toCharArray()))) {
+            boolean result
+                    = reader.lines().noneMatch(
+                            line -> line.matches(".*JDBC DriverManager initialized.*"));
+            assertTrue(result);
+
+        } catch (IOException ex) {
+            Logger.getLogger(DriverManagerInitTests.class.getName()).log(Level.SEVERE, null, ex);
+            fail();
+        }
+
+    }
+
+}