[34/40] logging-log4j2 git commit: LOG4J2-1434 added unit test to verify that StringBuilder capacity is reset to at most MAX on each call to AbstractStringLayout.getStringBuilder()

[mi...@apache.org]

LOG4J2-1434 added unit test to verify that StringBuilder capacity is reset to at most MAX on each call to AbstractStringLayout.getStringBuilder()


Project: http://git-wip-us.apache.org/repos/asf/logging-log4j2/repo
Commit: http://git-wip-us.apache.org/repos/asf/logging-log4j2/commit/d953cbfa
Tree: http://git-wip-us.apache.org/repos/asf/logging-log4j2/tree/d953cbfa
Diff: http://git-wip-us.apache.org/repos/asf/logging-log4j2/diff/d953cbfa

Branch: refs/heads/LOG4J-1181
Commit: d953cbfa6a922061dbc4537f58d766debdc75b2e
Parents: 1a19f75
Author: rpopma <rp...@apache.org>
Authored: Sun Jun 19 13:56:53 2016 +0900
Committer: rpopma <rp...@apache.org>
Committed: Sun Jun 19 13:56:53 2016 +0900

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 .../core/layout/AbstractStringLayoutTest.java   | 61 ++++++++++++++++++++
 1 file changed, 61 insertions(+)
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http://git-wip-us.apache.org/repos/asf/logging-log4j2/blob/d953cbfa/log4j-core/src/test/java/org/apache/logging/log4j/core/layout/AbstractStringLayoutTest.java
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diff --git a/log4j-core/src/test/java/org/apache/logging/log4j/core/layout/AbstractStringLayoutTest.java b/log4j-core/src/test/java/org/apache/logging/log4j/core/layout/AbstractStringLayoutTest.java
new file mode 100644
index 0000000..f213a31
--- /dev/null
+++ b/log4j-core/src/test/java/org/apache/logging/log4j/core/layout/AbstractStringLayoutTest.java
@@ -0,0 +1,61 @@
+package org.apache.logging.log4j.core.layout;/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache license, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the license for the specific language governing permissions and
+ * limitations under the license.
+ */
+
+import java.nio.charset.Charset;
+
+import org.apache.logging.log4j.core.LogEvent;
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Tests AbstractStringLayout.
+ */
+public class AbstractStringLayoutTest {
+    static class ConcreteStringLayout extends AbstractStringLayout {
+        public static int DEFAULT_STRING_BUILDER_SIZE = AbstractStringLayout.DEFAULT_STRING_BUILDER_SIZE;
+        public static int MAX_STRING_BUILDER_SIZE = AbstractStringLayout.MAX_STRING_BUILDER_SIZE;
+
+        public ConcreteStringLayout() {
+            super(Charset.defaultCharset());
+        }
+
+        public static StringBuilder getStringBuilder() {
+            return AbstractStringLayout.getStringBuilder();
+        }
+
+        @Override
+        public String toSerializable(final LogEvent event) {
+            return null;
+        }
+    }
+
+    @Test
+    public void testGetStringBuilderCapacityRestrictedToMax() throws Exception {
+        final int LARGE = 4096;
+        final String largeMessage = new String(new char[LARGE]);
+        final StringBuilder sb = ConcreteStringLayout.getStringBuilder();
+        assertEquals("initial capacity", ConcreteStringLayout.DEFAULT_STRING_BUILDER_SIZE, sb.capacity());
+        sb.append(largeMessage);
+        assertEquals("capacity=msg length", LARGE, sb.capacity());
+        assertEquals("capacity=msg length", LARGE, sb.length());
+
+        final StringBuilder next = ConcreteStringLayout.getStringBuilder();
+        assertEquals("max capacity", ConcreteStringLayout.MAX_STRING_BUILDER_SIZE, next.capacity());
+        assertEquals("empty, ready for use", 0, sb.length());
+    }
+}
\ No newline at end of file