testmaputils.java

iBATIS似乎已远离众说纷纭的OR框架之列

        final Map map = new TreeMap();  // treeMap guarantees order across JDKs for test
        map.put( new Integer(2) , "B" );
        map.put( new Integer(3) , "C" );
        map.put( new Integer(4) , null );

        outPrint.println("{");
        outPrint.println(INDENT + "2 = B");
        outPrint.println(INDENT + "3 = C");
        outPrint.println(INDENT + "4 = null");
        outPrint.println("}");
        final String EXPECTED_OUT = out.toString();
        out.reset();

        MapUtils.verbosePrint(outPrint, null, map);
        assertEquals(EXPECTED_OUT, out.toString());
    }

    public void testDebugPrintNullLabel() {
        final ByteArrayOutputStream out = new ByteArrayOutputStream();
        final PrintStream outPrint = new PrintStream(out);

        final String INDENT = "    ";

        final Map map = new TreeMap();  // treeMap guarantees order across JDKs for test
        map.put( new Integer(2) , "B" );
        map.put( new Integer(3) , "C" );
        map.put( new Integer(4) , null );

        outPrint.println("{");
        outPrint.println(INDENT + "2 = B " + String.class.getName());
        outPrint.println(INDENT + "3 = C " + String.class.getName());
        outPrint.println(INDENT + "4 = null");
        outPrint.println("} " + TreeMap.class.getName());
        final String EXPECTED_OUT = out.toString();
        out.reset();

        MapUtils.debugPrint(outPrint, null, map);
        assertEquals(EXPECTED_OUT, out.toString());
    }

    public void testVerbosePrintNullLabelAndMap() {
        final ByteArrayOutputStream out = new ByteArrayOutputStream();
        final PrintStream outPrint = new PrintStream(out);

        outPrint.println("null");
        final String EXPECTED_OUT = out.toString();
        out.reset();

        MapUtils.verbosePrint(outPrint, null, null);
        assertEquals(EXPECTED_OUT, out.toString());
    }

    public void testDebugPrintNullLabelAndMap() {
        final ByteArrayOutputStream out = new ByteArrayOutputStream();
        final PrintStream outPrint = new PrintStream(out);

        outPrint.println("null");
        final String EXPECTED_OUT = out.toString();
        out.reset();

        MapUtils.debugPrint(outPrint, null, null);
        assertEquals(EXPECTED_OUT, out.toString());
    }

    public void testVerbosePrintNullStream() {
        try {
            MapUtils.verbosePrint(null, "Map", new HashMap());
            fail("Should generate NullPointerException");
        } catch (NullPointerException expected) {
        }
    }

    public void testDebugPrintNullStream() {
        try {
            MapUtils.debugPrint(null, "Map", new HashMap());
            fail("Should generate NullPointerException");
        } catch (NullPointerException expected) {
        }
    }

    public void testDebugPrintNullKey() {
        final ByteArrayOutputStream out = new ByteArrayOutputStream();
        final PrintStream outPrint = new PrintStream(out);

        final String INDENT = "    ";

        final Map map = new HashMap();
        map.put( null , "A" );

        outPrint.println("{");
        outPrint.println(INDENT + "null = A " + String.class.getName());
        outPrint.println("} " + HashMap.class.getName());
        final String EXPECTED_OUT = out.toString();
        out.reset();

        MapUtils.debugPrint(outPrint, null, map);
        assertEquals(EXPECTED_OUT, out.toString());
    }

    public void testVerbosePrintNullKey() {
        final ByteArrayOutputStream out = new ByteArrayOutputStream();
        final PrintStream outPrint = new PrintStream(out);

        final String INDENT = "    ";

        final Map map = new HashMap();
        map.put( null , "A" );

        outPrint.println("{");
        outPrint.println(INDENT + "null = A");
        outPrint.println("}");
        final String EXPECTED_OUT = out.toString();
        out.reset();

        MapUtils.verbosePrint(outPrint, null, map);
        assertEquals(EXPECTED_OUT, out.toString());
    }

    public void testDebugPrintNullKeyToMap1() {
        final ByteArrayOutputStream out = new ByteArrayOutputStream();
        final PrintStream outPrint = new PrintStream(out);

        final String INDENT = "    ";

        final Map map = new HashMap();
        map.put( null , map );

        outPrint.println("{");
        outPrint.println(INDENT + "null = (this Map) " + HashMap.class.getName());
        outPrint.println("} " + HashMap.class.getName());
        final String EXPECTED_OUT = out.toString();
        out.reset();

        MapUtils.debugPrint(outPrint, null, map);
        assertEquals(EXPECTED_OUT, out.toString());
    }

    public void testVerbosePrintNullKeyToMap1() {
        final ByteArrayOutputStream out = new ByteArrayOutputStream();
        final PrintStream outPrint = new PrintStream(out);

        final String INDENT = "    ";

        final Map map = new HashMap();
        map.put( null , map );

        outPrint.println("{");
        outPrint.println(INDENT + "null = (this Map)");
        outPrint.println("}");
        final String EXPECTED_OUT = out.toString();
        out.reset();

        MapUtils.verbosePrint(outPrint, null, map);
        assertEquals(EXPECTED_OUT, out.toString());
    }

    public void testDebugPrintNullKeyToMap2() {
        final ByteArrayOutputStream out = new ByteArrayOutputStream();
        final PrintStream outPrint = new PrintStream(out);

        final String INDENT = "    ";

        final Map map = new HashMap();
        final Map map2= new HashMap();
        map.put( null , map2 );
        map2.put( "2", "B" );

        outPrint.println("{");
        outPrint.println(INDENT + "null = ");
        outPrint.println(INDENT + "{");
        outPrint.println(INDENT + INDENT + "2 = B " + String.class.getName());
        outPrint.println(INDENT + "} " + HashMap.class.getName());
        outPrint.println("} " + HashMap.class.getName());
        final String EXPECTED_OUT = out.toString();
        out.reset();

        MapUtils.debugPrint(outPrint, null, map);
        assertEquals(EXPECTED_OUT, out.toString());
    }

    public void testVerbosePrintNullKeyToMap2() {
        final ByteArrayOutputStream out = new ByteArrayOutputStream();
        final PrintStream outPrint = new PrintStream(out);

        final String INDENT = "    ";

        final Map map = new HashMap();
        final Map map2= new HashMap();
        map.put( null , map2 );
        map2.put( "2", "B" );

        outPrint.println("{");
        outPrint.println(INDENT + "null = ");
        outPrint.println(INDENT + "{");
        outPrint.println(INDENT + INDENT + "2 = B");
        outPrint.println(INDENT + "}");
        outPrint.println("}");
        final String EXPECTED_OUT = out.toString();
        out.reset();

        MapUtils.verbosePrint(outPrint, null, map);
        assertEquals(EXPECTED_OUT, out.toString());
    }

    public void testVerbosePrint() {
        final ByteArrayOutputStream out = new ByteArrayOutputStream();
        final PrintStream outPrint = new PrintStream(out);

        final String LABEL = "Print Map";
        final String INDENT = "    ";

        outPrint.println(LABEL + " = ");
        outPrint.println("{");
        outPrint.println(INDENT + "0 = A");
        outPrint.println(INDENT + "1 = ");
        outPrint.println(INDENT + "{");
        outPrint.println(INDENT + INDENT + "2 = B");
        outPrint.println(INDENT + INDENT + "3 = C");
        outPrint.println(INDENT + "}");
        outPrint.println(INDENT + "7 = (this Map)");
        outPrint.println("}");

        final String EXPECTED_OUT = out.toString();

        out.reset();

        final Map inner = new TreeMap();  // treeMap guarantees order across JDKs for test
        inner.put( new Integer(2) , "B" );
        inner.put( new Integer(3) , "C" );

        final Map outer = new TreeMap();
        outer.put( new Integer(1) , inner );
        outer.put( new Integer(0) , "A");
        outer.put( new Integer(7) , outer);

        MapUtils.verbosePrint(outPrint, "Print Map", outer);
        assertEquals(EXPECTED_OUT, out.toString());
    }

    public void testDebugPrint() {
        final ByteArrayOutputStream out = new ByteArrayOutputStream();
        final PrintStream outPrint = new PrintStream(out);

        final String LABEL = "Print Map";
        final String INDENT = "    ";

        outPrint.println(LABEL + " = ");
        outPrint.println("{");
        outPrint.println(INDENT + "0 = A " + String.class.getName());
        outPrint.println(INDENT + "1 = ");
        outPrint.println(INDENT + "{");
        outPrint.println(INDENT + INDENT + "2 = B " + String.class.getName());
        outPrint.println(INDENT + INDENT + "3 = C " + String.class.getName());
        outPrint.println(INDENT + "} " + TreeMap.class.getName());
        outPrint.println(INDENT + "7 = (this Map) " + TreeMap.class.getName());
        outPrint.println("} " + TreeMap.class.getName());

        final String EXPECTED_OUT = out.toString();

        out.reset();

        final Map inner = new TreeMap();  // treeMap guarantees order across JDKs for test
        inner.put( new Integer(2) , "B" );
        inner.put( new Integer(3) , "C" );

        final Map outer = new TreeMap();
        outer.put( new Integer(1) , inner );
        outer.put( new Integer(0) , "A");
        outer.put( new Integer(7) , outer);

        MapUtils.debugPrint(outPrint, "Print Map", outer);
        assertEquals(EXPECTED_OUT, out.toString());
    }

    public void testVerbosePrintSelfReference() {
        final ByteArrayOutputStream out = new ByteArrayOutputStream();
        final PrintStream outPrint = new PrintStream(out);

        final String LABEL = "Print Map";
        final String INDENT = "    ";


        final Map grandfather = new TreeMap();// treeMap guarantees order across JDKs for test
        final Map father = new TreeMap();
        final Map son    = new TreeMap();

        grandfather.put( new Integer(0), "A" );
        grandfather.put( new Integer(1), father );

        father.put( new Integer(2), "B" );
        father.put( new Integer(3), grandfather);
        father.put( new Integer(4), son);

        son.put( new Integer(5), "C");
        son.put( new Integer(6), grandfather);
        son.put( new Integer(7), father);

        outPrint.println(LABEL + " = ");
        outPrint.println("{");
        outPrint.println(INDENT + "0 = A");
        outPrint.println(INDENT + "1 = ");
        outPrint.println(INDENT + "{");
        outPrint.println(INDENT + INDENT + "2 = B");
        outPrint.println(INDENT + INDENT + "3 = (ancestor[0] Map)");
        outPrint.println(INDENT + INDENT + "4 = ");
        outPrint.println(INDENT + INDENT + "{");
        outPrint.println(INDENT + INDENT + INDENT + "5 = C");
        outPrint.println(INDENT + INDENT + INDENT + "6 = (ancestor[1] Map)");
        outPrint.println(INDENT + INDENT + INDENT + "7 = (ancestor[0] Map)");
        outPrint.println(INDENT + INDENT + "}");
        outPrint.println(INDENT + "}");
        outPrint.println("}");

        final String EXPECTED_OUT = out.toString();

        out.reset();
        MapUtils.verbosePrint(outPrint, "Print Map", grandfather);

        assertEquals(EXPECTED_OUT, out.toString());
    }

    public void testDebugPrintSelfReference() {
        final ByteArrayOutputStream out = new ByteArrayOutputStream();
        final PrintStream outPrint = new PrintStream(out);

        final String LABEL = "Print Map";
        final String INDENT = "    ";


        final Map grandfather = new TreeMap();// treeMap guarantees order across JDKs for test
        final Map father = new TreeMap();
        final Map son    = new TreeMap();

        grandfather.put( new Integer(0), "A" );
        grandfather.put( new Integer(1), father );

        father.put( new Integer(2), "B" );
        father.put( new Integer(3), grandfather);
        father.put( new Integer(4), son);

        son.put( new Integer(5), "C");
        son.put( new Integer(6), grandfather);
        son.put( new Integer(7), father);

        outPrint.println(LABEL + " = ");
        outPrint.println("{");
        outPrint.println(INDENT + "0 = A " + String.class.getName());
        outPrint.println(INDENT + "1 = ");
        outPrint.println(INDENT + "{");
        outPrint.println(INDENT + INDENT + "2 = B " + String.class.getName());
        outPrint.println(INDENT + INDENT + "3 = (ancestor[0] Map) " + TreeMap.class.getName());
        outPrint.println(INDENT + INDENT + "4 = ");
        outPrint.println(INDENT + INDENT + "{");
        outPrint.println(INDENT + INDENT + INDENT + "5 = C " + String.class.getName());
        outPrint.println(INDENT + INDENT + INDENT + "6 = (ancestor[1] Map) " + TreeMap.class.getName());
        outPrint.println(INDENT + INDENT + INDENT + "7 = (ancestor[0] Map) " + TreeMap.class.getName());
        outPrint.println(INDENT + INDENT + "} " + TreeMap.class.getName());
        outPrint.println(INDENT + "} " + TreeMap.class.getName());
        outPrint.println("} " + TreeMap.class.getName());

        final String EXPECTED_OUT = out.toString();

        out.reset();
        MapUtils.debugPrint(outPrint, "Print Map", grandfather);

        assertEquals(EXPECTED_OUT, out.toString());
    }

    //-----------------------------------------------------------------------
    public void testIsEmptyWithEmptyMap() {
        Map map = new HashMap();
        assertEquals(true, MapUtils.isEmpty(map));
    }

    public void testIsEmptyWithNonEmptyMap() {
        Map map = new HashMap();
        map.put("item", "value");
        assertEquals(false, MapUtils.isEmpty(map));
    }

    public void testIsEmptyWithNull() {
        Map map = null;
        assertEquals(true, MapUtils.isEmpty(map));
    }

    public void testIsNotEmptyWithEmptyMap() {
        Map map = new HashMap();
        assertEquals(false, MapUtils.isNotEmpty(map));
    }

    public void testIsNotEmptyWithNonEmptyMap() {
        Map map = new HashMap();
        map.put("item", "value");
        assertEquals(true, MapUtils.isNotEmpty(map));
    }

    public void testIsNotEmptyWithNull() {
        Map map = null;
        assertEquals(false, MapUtils.isNotEmpty(map));
    }

}