[logging-log4j2] 02/06: Test for JEP223 detection

[rg...@apache.org]

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rgoers pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/logging-log4j2.git

commit a56448a13021a6fc108f7842f1aba76c020ade49
Author: ulrichenslin <ul...@gmail.com>
AuthorDate: Sat Mar 2 08:43:55 2019 +0200

    Test for JEP223 detection
---
 .../log4j/core/layout/AbstractStringLayoutTest.java | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

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
index 04505d4..f0b3d69 100644
--- 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
@@ -15,7 +15,10 @@ package org.apache.logging.log4j.core.layout;/*
  * limitations under the license.
  */
 
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
 import java.nio.charset.Charset;
+import java.util.Properties;
 
 import org.apache.logging.log4j.core.LogEvent;
 import org.junit.Test;
@@ -74,4 +77,22 @@ public class AbstractStringLayoutTest {
         assertEquals("capacity, trimmed to MAX_STRING_BUILDER_SIZE", ConcreteStringLayout.MAX_STRING_BUILDER_SIZE, sb3.capacity());
         assertEquals("empty, ready for use", 0, sb3.length());
     }
+
+    @Test
+    public void testJdkVersionDetection() throws NoSuchMethodException, InvocationTargetException, IllegalAccessException {
+
+        Properties properties120 = new Properties();
+        properties120.put("java.version","1.2.0");
+        System.setProperties(properties120);
+
+        Method method = AbstractStringLayout.class.getDeclaredMethod("isPreJava8",null);
+        method.setAccessible(true);
+        assertTrue ((Boolean) method.invoke("isPreJava8"));
+
+        Properties properties900 = new Properties();
+        properties120.put("java.version","9.1.0");
+        System.setProperties(properties120);
+
+        assertFalse ((Boolean) method.invoke("isPreJava8"));
+    }
 }
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