commit e120bf15b6cbd2062592a37cb39f6d8b15cd4fd9
author Stefano Cianciulli <scianciulli@google.com> Thu Jun 29 15:34:20 2023 +0000
committer Stefano Cianciulli <scianciulli@google.com> Fri Jun 30 10:43:49 2023 +0000
tree ee2b6e4ac4c891ed3f60c91094aa1ff9cdb2e6ab
parent 060b08a84e03f03af26bc63b9f44391aad175542

Added tests for javax.xml.xpath.XPathException

Bug: 283962413
Test: atest --experimental-coverage CtsLibcoreTestCases:libcore.javax.xml.xpath.XPathExceptionTest
Change-Id: Ic2f1bb738a72b515c19f6fd3a4308604be40fd5c

luni/src/test/java/libcore/javax/xml/xpath/XPathExceptionTest.java

diff --git a/luni/src/test/java/libcore/javax/xml/xpath/XPathExceptionTest.java b/luni/src/test/java/libcore/javax/xml/xpath/XPathExceptionTest.java
index 79e4707..13c8252 100644
--- a/luni/src/test/java/libcore/javax/xml/xpath/XPathExceptionTest.java
+++ b/luni/src/test/java/libcore/javax/xml/xpath/XPathExceptionTest.java
@@ -17,12 +17,18 @@
 package libcore.javax.xml.xpath;
 
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotEquals;
 import static org.junit.Assert.assertNull;
+import static org.junit.Assert.fail;
 
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.junit.runners.JUnit4;
 
+import java.io.ByteArrayOutputStream;
+import java.io.PrintStream;
+import java.io.PrintWriter;
+
 import javax.xml.xpath.XPathException;
 
 @RunWith(JUnit4.class)
@@ -35,10 +41,85 @@
     }
 
     @Test
+    public void constructorWithStringNull() {
+        try {
+            XPathException unused = new XPathException((String) null);
+            fail("Expected NullPointerException with null String");
+        } catch (NullPointerException ex) {
+            // Expected
+        }
+    }
+
+    @Test
     public void constructorWithThrowable() {
         Throwable t = new Throwable();
         XPathException e = new XPathException(t);
         assertEquals("java.lang.Throwable", e.getMessage());
         assertEquals(t, e.getCause());
     }
+
+    @Test
+    public void constructorWithThrowableNull() {
+        try {
+            XPathException unused = new XPathException((Throwable) null);
+            fail("Expected NullPointerException with null Throwable");
+        } catch (NullPointerException ex) {
+            // Expected
+        }
+    }
+
+    @Test
+    public void printStackTrace_noArgs() {
+        XPathException e = new XPathException("message");
+        e.printStackTrace();
+    }
+
+    @Test
+    public void printStackTraceWithPrintStream_nullCause() {
+        XPathException e = new XPathException("message");
+
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        PrintStream ps = new PrintStream(baos, true);
+        e.printStackTrace(ps);
+
+        assertNotEquals(-1, baos.toString().indexOf("javax.xml.xpath.XPathException"));
+    }
+
+    @Test
+    public void printStackTraceWithPrintStream_nonNullCause() {
+        XPathException e = new XPathException(new TestCauseException());
+
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        PrintStream ps = new PrintStream(baos, true);
+        e.printStackTrace(ps);
+
+        assertNotEquals(-1, baos.toString().indexOf("TestCauseException"));
+        assertNotEquals(-1, baos.toString().indexOf("javax.xml.xpath.XPathException"));
+    }
+
+    @Test
+    public void printStackTraceWithPrintWriter_nullCause() {
+        XPathException e = new XPathException("message");
+
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        PrintWriter pw = new PrintWriter(baos, true);
+        e.printStackTrace(pw);
+
+        assertNotEquals(-1, baos.toString().indexOf("javax.xml.xpath.XPathException"));
+    }
+
+    @Test
+    public void printStackTraceWithPrintWriter_nonNullCause() {
+        XPathException e = new XPathException(new TestCauseException());
+
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        PrintWriter pw = new PrintWriter(baos, true);
+        e.printStackTrace(pw);
+
+        assertNotEquals(-1, baos.toString().indexOf("TestCauseException"));
+        assertNotEquals(-1, baos.toString().indexOf("javax.xml.xpath.XPathException"));
+    }
+
+    // Defining a new exception to be used as cause in printStackTrace tests
+    private static class TestCauseException extends Throwable {}
 }