Fix #1414

1 files changed, 139 insertions, 0 deletions

diff --git a/src/test/java/com/fasterxml/jackson/databind/exc/DeserExceptionTypeTest.java b/src/test/java/com/fasterxml/jackson/databind/exc/DeserExceptionTypeTest.java
new file mode 100644
index 000000000..6b5f79aff
--- /dev/null
+++ b/src/test/java/com/fasterxml/jackson/databind/exc/DeserExceptionTypeTest.java
@@ -0,0 +1,139 @@
+package com.fasterxml.jackson.databind.exc;
+
+import java.io.*;
+
+import com.fasterxml.jackson.core.*;
+import com.fasterxml.jackson.databind.*;
+import com.fasterxml.jackson.databind.exc.InputMismatchException;
+import com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException;
+
+/**
+ * Unit test for verifying that exceptions are properly handled (caught,
+ * re-thrown or wrapped, depending) with Object deserialization,
+ * including using concrete subtypes of {@link JsonMappingException}
+ * (or, for low-level parsing, {@link JsonParseException}).
+ */
+public class DeserExceptionTypeTest
+    extends BaseMapTest
+{
+    static class Bean {
+        public String propX;
+    }
+
+    // Class that has no applicable creators and thus can not be instantiated;
+    // definition problem
+    static class NoCreatorsBean {
+        public int x;
+
+        // Constructor that is not detectable as Creator
+        public NoCreatorsBean(boolean foo, int foo2) { }
+    }
+    
+    /*
+    /**********************************************************
+    /* Test methods
+    /**********************************************************
+     */
+
+    private final ObjectMapper MAPPER = new ObjectMapper();
+    
+    public void testHandlingOfUnrecognized() throws Exception
+    {
+        UnrecognizedPropertyException exc = null;
+        try {
+            MAPPER.readValue("{\"bar\":3}", Bean.class);
+        } catch (UnrecognizedPropertyException e) {
+            exc = e;
+        }
+        if (exc == null) {
+            fail("Should have failed binding");
+        }
+        assertEquals("bar", exc.getPropertyName());
+        assertEquals(Bean.class, exc.getReferringClass());
+        // also: should get list of known properties
+        verifyException(exc, "propX");
+    }
+
+    /**
+     * Simple test to check behavior when end-of-stream is encountered
+     * without content. Used to expect EOFException (Jackson 1.x); but
+     * nowadays ought to be JsonMappingException
+     */
+    public void testExceptionWithEmpty() throws Exception
+    {
+        try {
+            Object result = MAPPER.readValue("    ", Object.class);
+            fail("Expected an exception, but got result value: "+result);
+        } catch (Exception e) {
+            verifyException(e, InputMismatchException.class, "No content");
+        }
+    }
+
+    @SuppressWarnings("resource")
+    public void testExceptionWithIncomplete()
+        throws Exception
+    {
+        BrokenStringReader r = new BrokenStringReader("[ 1, ", "TEST");
+        JsonParser p = MAPPER.getFactory().createParser(r);
+        try {
+            @SuppressWarnings("unused")
+            Object ob = MAPPER.readValue(p, Object.class);
+            fail("Should have gotten an exception");
+        } catch (IOException e) {
+            /* For "bona fide" IO problems (due to low-level problem,
+             * thrown by reader/stream), IOException must be thrown
+             */
+            verifyException(e, IOException.class, "TEST");
+        }
+    }
+
+    public void testExceptionWithEOF() throws Exception
+    {
+        JsonParser p = MAPPER.getFactory().createParser("  3");
+
+        Integer I = MAPPER.readValue(p, Integer.class);
+        assertEquals(3, I.intValue());
+
+        // and then end-of-input...
+        try {
+            I = MAPPER.readValue(p, Integer.class);
+            fail("Should have gotten an exception");
+        } catch (IOException e) {
+            verifyException(e, InputMismatchException.class, "No content");
+        }
+        // also: should have no current token after end-of-input
+        JsonToken t = p.getCurrentToken();
+        if (t != null) {
+            fail("Expected current token to be null after end-of-stream, was: "+t);
+        }
+        p.close();
+    }
+
+    // [databind#1414]
+    public void testExceptionForNoCreators() throws Exception
+    {
+        try {
+            NoCreatorsBean b = MAPPER.readValue("{}", NoCreatorsBean.class);
+            fail("Should not succeed, got: "+b);
+        } catch (JsonMappingException e) {
+            verifyException(e, InvalidDefinitionException.class, "no Creators");
+        }
+    }
+
+    /*
+    /**********************************************************
+    /* Helper methods
+    /**********************************************************
+     */
+
+    void verifyException(Exception e, Class<?> expType, String expMsg)
+        throws Exception
+    {
+        if (e.getClass() != expType) {
+            fail("Expected exception of type "+expType.getName()+", got "+e.getClass().getName());
+        }
+        if (expMsg != null) {
+            verifyException(e, expMsg);
+        }
+    }
+}