1.9.10/src/test/org/codehaus/jackson/map/deser/TestJdkTypes.java

package org.codehaus.jackson.map.deser;

import java.io.*;
import java.net.*;
import java.nio.charset.Charset;
import java.util.Currency;
import java.util.List;
import java.util.Locale;
import java.util.regex.Pattern;

import org.codehaus.jackson.annotate.JsonCreator;
import org.codehaus.jackson.annotate.JsonProperty;
import org.codehaus.jackson.map.*;

public class TestJdkTypes
    extends org.codehaus.jackson.map.BaseMapTest
{
    static class PrimitivesBean
    {
        public boolean booleanValue = true;
        public byte byteValue = 3;
        public char charValue = 'a';
        public short shortValue = 37;
        public int intValue = 1;
        public long longValue = 100L;
        public float floatValue = 0.25f;
        public double doubleValue = -1.0;
    }

    // for [JACKSON-616]
    static class WrappersBean
    {
        public Boolean booleanValue;
        public Byte byteValue;
        public Character charValue;
        public Short shortValue;
        public Integer intValue;
        public Long longValue;
        public Float floatValue;
        public Double doubleValue;
    }

    
    static class ParamClassBean
    {
         public String name = "bar";
         public Class<String> clazz ;

         public ParamClassBean() { }
         public ParamClassBean(String name) {
             this.name = name;
             clazz = String.class;
         }
    }

    static class BooleanBean {
        public Boolean wrapper;
        public boolean primitive;
        
        protected Boolean ctor;
        
        @JsonCreator
        public BooleanBean(@JsonProperty("ctor") Boolean foo) {
            ctor = foo;
        }
    }
    
    /*
    /**********************************************************
    /* Test methods
    /**********************************************************
     */
    
    private final ObjectMapper mapper = new ObjectMapper();

    /**
     * Related to issue [JACKSON-155].
     */
    public void testFile() throws Exception
    {
        // Not portable etc... has to do:
        File src = new File("/test").getAbsoluteFile();
        File result = mapper.readValue("\""+src.getAbsolutePath()+"\"", File.class);
        assertEquals(src.getAbsolutePath(), result.getAbsolutePath());
    }

    public void testRegexps() throws IOException
    {
        final String PATTERN_STR = "abc:\\s?(\\d+)";
        Pattern exp = Pattern.compile(PATTERN_STR);
        /* Ok: easiest way is to just serialize first; problem
         * is the backslash
         */
        String json = mapper.writeValueAsString(exp);
        Pattern result = mapper.readValue(json, Pattern.class);
        assertEquals(exp.pattern(), result.pattern());
    }

    public void testCurrency() throws IOException
    {
        Currency usd = Currency.getInstance("USD");
        assertEquals(usd, new ObjectMapper().readValue(quote("USD"), Currency.class));
    }

    /**
     * Test for [JACKSON-419]
     * 
     * @since 1.7
     */
    public void testLocale() throws IOException
    {
        assertEquals(new Locale("en"), mapper.readValue(quote("en"), Locale.class));
        assertEquals(new Locale("es", "ES"), mapper.readValue(quote("es_ES"), Locale.class));
        assertEquals(new Locale("FI", "fi", "savo"), mapper.readValue(quote("fi_FI_savo"), Locale.class));
    }

    /**
     * Test for [JACKSON-420] (add DeserializationConfig.FAIL_ON_NULL_FOR_PRIMITIVES)
     * 
     * @since 1.7
     */
    public void testNullForPrimitives() throws IOException
    {
        // by default, ok to rely on defaults
        PrimitivesBean bean = mapper.readValue("{\"intValue\":null, \"booleanValue\":null, \"doubleValue\":null}",
                PrimitivesBean.class);
        assertNotNull(bean);
        assertEquals(0, bean.intValue);
        assertEquals(false, bean.booleanValue);
        assertEquals(0.0, bean.doubleValue);

        bean = mapper.readValue("{\"byteValue\":null, \"longValue\":null, \"floatValue\":null}",
                PrimitivesBean.class);
        assertNotNull(bean);
        assertEquals((byte) 0, bean.byteValue);
        assertEquals(0L, bean.longValue);
        assertEquals(0.0f, bean.floatValue);
        
        // but not when enabled
        final ObjectMapper mapper2 = new ObjectMapper();
        mapper2.configure(DeserializationConfig.Feature.FAIL_ON_NULL_FOR_PRIMITIVES, true);

        // boolean
        try {
            mapper2.readValue("{\"booleanValue\":null}", PrimitivesBean.class);
            fail("Expected failure for boolean + null");
        } catch (JsonMappingException e) {
            verifyException(e, "Can not map JSON null into type boolean");
        }
        // byte/char/short/int/long
        try {
            mapper2.readValue("{\"byteValue\":null}", PrimitivesBean.class);
            fail("Expected failure for byte + null");
        } catch (JsonMappingException e) {
            verifyException(e, "Can not map JSON null into type byte");
        }
        try {
            mapper2.readValue("{\"charValue\":null}", PrimitivesBean.class);
            fail("Expected failure for char + null");
        } catch (JsonMappingException e) {
            verifyException(e, "Can not map JSON null into type char");
        }
        try {
            mapper2.readValue("{\"shortValue\":null}", PrimitivesBean.class);
            fail("Expected failure for short + null");
        } catch (JsonMappingException e) {
            verifyException(e, "Can not map JSON null into type short");
        }
        try {
            mapper2.readValue("{\"intValue\":null}", PrimitivesBean.class);
            fail("Expected failure for int + null");
        } catch (JsonMappingException e) {
            verifyException(e, "Can not map JSON null into type int");
        }
        try {
            mapper2.readValue("{\"longValue\":null}", PrimitivesBean.class);
            fail("Expected failure for long + null");
        } catch (JsonMappingException e) {
            verifyException(e, "Can not map JSON null into type long");
        }

        // float/double
        try {
            mapper2.readValue("{\"floatValue\":null}", PrimitivesBean.class);
            fail("Expected failure for float + null");
        } catch (JsonMappingException e) {
            verifyException(e, "Can not map JSON null into type float");
        }
        try {
            mapper2.readValue("{\"doubleValue\":null}", PrimitivesBean.class);
            fail("Expected failure for double + null");
        } catch (JsonMappingException e) {
            verifyException(e, "Can not map JSON null into type double");
        }
    }
    
    /**
     * Test for [JACKSON-483], allow handling of CharSequence
     */
    public void testCharSequence() throws IOException
    {
        CharSequence cs = mapper.readValue("\"abc\"", CharSequence.class);
        assertEquals(String.class, cs.getClass());
        assertEquals("abc", cs.toString());
    }
    
    // [JACKSON-484]
    public void testInetAddress() throws IOException
    {
        InetAddress address = mapper.readValue(quote("127.0.0.1"), InetAddress.class);
        assertEquals("127.0.0.1", address.getHostAddress());

        // should we try resolving host names? That requires connectivity... 
        final String HOST = "www.ning.com";
        address = mapper.readValue(quote(HOST), InetAddress.class);
        assertEquals(HOST, address.getHostName());
    }

    // [JACKSON-597]
    public void testClass() throws IOException
    {
        ObjectMapper mapper = new ObjectMapper();
        assertSame(String.class, mapper.readValue(quote("java.lang.String"), Class.class));

        // then primitive types
        assertSame(Boolean.TYPE, mapper.readValue(quote("boolean"), Class.class));
        assertSame(Byte.TYPE, mapper.readValue(quote("byte"), Class.class));
        assertSame(Short.TYPE, mapper.readValue(quote("short"), Class.class));
        assertSame(Character.TYPE, mapper.readValue(quote("char"), Class.class));
        assertSame(Integer.TYPE, mapper.readValue(quote("int"), Class.class));
        assertSame(Long.TYPE, mapper.readValue(quote("long"), Class.class));
        assertSame(Float.TYPE, mapper.readValue(quote("float"), Class.class));
        assertSame(Double.TYPE, mapper.readValue(quote("double"), Class.class));
        assertSame(Void.TYPE, mapper.readValue(quote("void"), Class.class));
    }

    // [JACKSON-605]
    public void testClassWithParams() throws IOException
    {
        String json = mapper.writeValueAsString(new ParamClassBean("Foobar"));

        ParamClassBean result = mapper.readValue(json, ParamClassBean.class);
        assertEquals("Foobar", result.name);
        assertSame(String.class, result.clazz);
    }

    // by default, should return nulls, n'est pas?
    public void testEmptyStringForWrappers() throws IOException
    {
        WrappersBean bean;

        // by default, ok to rely on defaults
        bean = mapper.readValue("{\"booleanValue\":\"\"}", WrappersBean.class);
        assertNull(bean.booleanValue);
        bean = mapper.readValue("{\"byteValue\":\"\"}", WrappersBean.class);
        assertNull(bean.byteValue);

        // char/Character is different... not sure if this should work or not:
        bean = mapper.readValue("{\"charValue\":\"\"}", WrappersBean.class);
        assertNull(bean.charValue);

        bean = mapper.readValue("{\"shortValue\":\"\"}", WrappersBean.class);
        assertNull(bean.shortValue);
        bean = mapper.readValue("{\"intValue\":\"\"}", WrappersBean.class);
        assertNull(bean.intValue);
        bean = mapper.readValue("{\"longValue\":\"\"}", WrappersBean.class);
        assertNull(bean.longValue);
        bean = mapper.readValue("{\"floatValue\":\"\"}", WrappersBean.class);
        assertNull(bean.floatValue);
        bean = mapper.readValue("{\"doubleValue\":\"\"}", WrappersBean.class);
        assertNull(bean.doubleValue);
    }

    // for [JACKSON-616]
    // @since 1.9
    public void testEmptyStringForPrimitives() throws IOException
    {
        PrimitivesBean bean;
        bean = mapper.readValue("{\"booleanValue\":\"\"}", PrimitivesBean.class);
        assertFalse(bean.booleanValue);
        bean = mapper.readValue("{\"byteValue\":\"\"}", PrimitivesBean.class);
        assertEquals((byte) 0, bean.byteValue);
        bean = mapper.readValue("{\"charValue\":\"\"}", PrimitivesBean.class);
        assertEquals((char) 0, bean.charValue);
        bean = mapper.readValue("{\"shortValue\":\"\"}", PrimitivesBean.class);
        assertEquals((short) 0, bean.shortValue);
        bean = mapper.readValue("{\"intValue\":\"\"}", PrimitivesBean.class);
        assertEquals(0, bean.intValue);
        bean = mapper.readValue("{\"longValue\":\"\"}", PrimitivesBean.class);
        assertEquals(0L, bean.longValue);
        bean = mapper.readValue("{\"floatValue\":\"\"}", PrimitivesBean.class);
        assertEquals(0.0f, bean.floatValue);
        bean = mapper.readValue("{\"doubleValue\":\"\"}", PrimitivesBean.class);
        assertEquals(0.0, bean.doubleValue);
    }

    // for [JACKSON-652]
    // @since 1.9
    public void testUntypedWithJsonArrays() throws Exception
    {
        // by default we get:
        Object ob = mapper.readValue("[1]", Object.class);
        assertTrue(ob instanceof List<?>);

        // but can change to produce Object[]:
        mapper.configure(DeserializationConfig.Feature.USE_JAVA_ARRAY_FOR_JSON_ARRAY, true);
        ob = mapper.readValue("[1]", Object.class);
        assertEquals(Object[].class, ob.getClass());
    }

    // Test for verifying that Long values are coerced to boolean correctly as well
    public void testLongToBoolean() throws Exception
    {
        long value = 1L + Integer.MAX_VALUE;
        BooleanBean b = mapper.readValue("{\"primitive\" : "+value+", \"wrapper\":"+value+", \"ctor\":"+value+"}",
                    BooleanBean.class);
        assertEquals(Boolean.TRUE, b.wrapper);
        assertTrue(b.primitive);
        assertEquals(Boolean.TRUE, b.ctor);
    }

    // [JACKSON-789]
    public void testCharset() throws Exception
    {
        Charset UTF8 = Charset.forName("UTF-8");
        assertSame(UTF8, mapper.readValue(quote("UTF-8"), Charset.class));
    }
}