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21 package com.db4o.test.soda;
22
23 import com.db4o.query.*;
24 import com.db4o.test.*;
25
26 public class SodaNumberCoercion {
27 private static final String  DOUBLEFIELD = "_doubleValue";
28 private static final String FLOATFIELD = "_floatValue";
29 private static final String LONGFIELD = "_longValue";
30 private static final String INTFIELD = "_intValue";
31 private static final String SHORTFIELD = "_shortValue";
32 private static final String BYTEFIELD = "_byteValue";
33 private static final Float ROUNDFLOATVALUE = new Float (100);
34 private static final Double ROUNDDOUBLEVALUE = new Double (100);
35 private static final Long LONGVALUE = new Long (100);
36 private static final Integer INTVALUE = new Integer (100);
37 private static final Short SHORTVALUE = new Short ((short)100);
38 private static final Byte BYTEVALUE = new Byte ((byte)100);
39
40 public static class Thing {
41 public byte _byteValue;
42 public short _shortValue;
43 public int _intValue;
44 public long _longValue;
45 public float _floatValue;
46 public double _doubleValue;
47
48 public Thing(byte byteValue,short shortValue,int intValue,long longValue,float floatValue,double doubleValue) {
49 _byteValue=byteValue;
50 _shortValue=shortValue;
51 _intValue=intValue;
52 _longValue=longValue;
53 _floatValue=floatValue;
54 _doubleValue=doubleValue;
55 }
56 }
57
58 public void store() {
59 Test.deleteAllInstances(Thing.class);
60 Test.store(new Thing((byte)10,(short)10,10,10L,10f,10d));
61 Test.store(new Thing((byte)100,(short)100,100,100L,100f,100d));
62 Test.store(new Thing((byte)42,(short)42,42,42L,42f,42d));
63 Test.store(new Thing((byte)111,(short)111,111,111L,111.11f,111.11d));
64 }
65
66 public void testIntegerTypes() {
67 assertSingleCoercionResult(BYTEFIELD,SHORTVALUE);
68 assertSingleCoercionResult(BYTEFIELD,INTVALUE);
69 assertSingleCoercionResult(BYTEFIELD,LONGVALUE);
70
71 assertSingleCoercionResult(SHORTFIELD,BYTEVALUE);
72 assertSingleCoercionResult(SHORTFIELD,INTVALUE);
73 assertSingleCoercionResult(SHORTFIELD,LONGVALUE);
74
75 assertSingleCoercionResult(INTFIELD,BYTEVALUE);
76 assertSingleCoercionResult(INTFIELD,SHORTVALUE);
77 assertSingleCoercionResult(INTFIELD,LONGVALUE);
78
79 assertSingleCoercionResult(LONGFIELD,BYTEVALUE);
80 assertSingleCoercionResult(LONGFIELD,SHORTVALUE);
81 assertSingleCoercionResult(LONGFIELD,INTVALUE);
82 }
83
84 public void testFloatingPointTypes() {
85 assertSingleCoercionResult(FLOATFIELD,ROUNDDOUBLEVALUE);
86 assertSingleCoercionResult(DOUBLEFIELD,ROUNDFLOATVALUE);
87 }
88
89 public void testMixed() {
90 assertSingleCoercionResult(BYTEFIELD, ROUNDFLOATVALUE);
91 assertSingleCoercionResult(BYTEFIELD, ROUNDDOUBLEVALUE);
92 assertSingleCoercionResult(SHORTFIELD, ROUNDFLOATVALUE);
93 assertSingleCoercionResult(SHORTFIELD, ROUNDDOUBLEVALUE);
94 assertSingleCoercionResult(INTFIELD, ROUNDFLOATVALUE);
95 assertSingleCoercionResult(INTFIELD, ROUNDDOUBLEVALUE);
96 assertSingleCoercionResult(LONGFIELD, ROUNDFLOATVALUE);
97 assertSingleCoercionResult(LONGFIELD, ROUNDDOUBLEVALUE);
98 assertSingleCoercionResult(FLOATFIELD, BYTEVALUE);
99 assertSingleCoercionResult(FLOATFIELD, SHORTVALUE);
100 assertSingleCoercionResult(FLOATFIELD, INTVALUE);
101 assertSingleCoercionResult(FLOATFIELD, LONGVALUE);
102 assertSingleCoercionResult(DOUBLEFIELD, BYTEVALUE);
103 assertSingleCoercionResult(DOUBLEFIELD, SHORTVALUE);
104 assertSingleCoercionResult(DOUBLEFIELD, INTVALUE);
105 assertSingleCoercionResult(DOUBLEFIELD, LONGVALUE);
106 }
107
108 public void testRounding() {
109 assertCoercionResult(FLOATFIELD, new Double (111.11), 0); assertCoercionResult(FLOATFIELD, new Integer (111), 0);
111 assertCoercionResult(INTFIELD, new Float (111.11), 0);
112 }
113
114 public void testOverflow() {
115 long cmpval=((long)Integer.MAX_VALUE)-Integer.MIN_VALUE+1+INTVALUE.intValue();
116 assertCoercionResult(INTFIELD, new Long (cmpval), 0);
117 }
118
119 private void assertSingleCoercionResult(String fieldName,Number value) {
120 assertCoercionResult(fieldName,value,1);
121 }
122
123 private void assertCoercionResult(String fieldName,Number value,int expCount) {
124 Query q = Test.query();
125 q.constrain(Thing.class);
126 Constraint constr=q.descend(fieldName).constrain(value);
127 Test.ensure(constr!=null);
128 Test.ensureEquals(expCount, q.execute().size());
129 }
130 }
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