svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.library / org.gvsig.expressionevaluator / org.gvsig.expressionevaluator.lib / org.gvsig.expressionevaluator.lib.impl / src / test / java / org / gvsig / expresionevaluator / impl / TestExpression.java @ 45213
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1 | 43983 | jjdelcerro | package org.gvsig.expresionevaluator.impl; |
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2 | |||
3 | import junit.framework.TestCase; |
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4 | 44619 | jjdelcerro | import org.apache.commons.lang3.Range; |
5 | 43983 | jjdelcerro | import org.gvsig.expressionevaluator.Expression; |
6 | 44614 | jjdelcerro | import org.gvsig.expressionevaluator.ExpressionEvaluatorLocator; |
7 | import org.gvsig.expressionevaluator.ExpressionEvaluatorManager; |
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8 | 44619 | jjdelcerro | import org.gvsig.expressionevaluator.Interpreter; |
9 | 44614 | jjdelcerro | import org.gvsig.expressionevaluator.MutableSymbolTable; |
10 | 45153 | jjdelcerro | import org.gvsig.expressionevaluator.impl.DefaultSymbolTable; |
11 | 44619 | jjdelcerro | import org.gvsig.expressionevaluator.spi.AbstractFunction; |
12 | 43983 | jjdelcerro | import org.gvsig.tools.library.impl.DefaultLibrariesInitializer; |
13 | |||
14 | 44619 | jjdelcerro | public class TestExpression extends TestCase { |
15 | 43983 | jjdelcerro | |
16 | 45153 | jjdelcerro | private static class MyValueSymbolTable extends DefaultSymbolTable { |
17 | 44619 | jjdelcerro | |
18 | private class MyValueFunction extends AbstractFunction { |
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19 | |||
20 | public MyValueFunction() {
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21 | super("Numeric", "MyValue", Range.is(0)); |
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22 | } |
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23 | |||
24 | @Override
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25 | public Object call(Interpreter interpreter, Object[] args) { |
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26 | return value;
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27 | } |
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28 | |||
29 | @Override
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30 | public boolean allowConstantFolding() { |
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31 | return false; |
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32 | } |
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33 | } |
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34 | private int value; |
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35 | |||
36 | @SuppressWarnings("OverridableMethodCallInConstructor") |
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37 | public MyValueSymbolTable(String name) { |
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38 | super(name);
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39 | this.addFunction(new MyValueFunction()); |
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40 | } |
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41 | |||
42 | public void setValue(int value) { |
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43 | this.value = value;
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44 | } |
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45 | } |
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46 | |||
47 | 44614 | jjdelcerro | public TestExpression(String testName) { |
48 | 43983 | jjdelcerro | super(testName);
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49 | } |
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50 | 44619 | jjdelcerro | |
51 | 43983 | jjdelcerro | @Override
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52 | protected void setUp() throws Exception { |
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53 | super.setUp();
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54 | new DefaultLibrariesInitializer().fullInitialize();
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55 | } |
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56 | 44619 | jjdelcerro | |
57 | 43983 | jjdelcerro | @Override
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58 | protected void tearDown() throws Exception { |
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59 | super.tearDown();
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60 | } |
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61 | |||
62 | 44614 | jjdelcerro | private MutableSymbolTable createMutableSymbolTable() {
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63 | ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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64 | MutableSymbolTable t = manager.createSymbolTable(); |
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65 | 44619 | jjdelcerro | return t;
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66 | 44614 | jjdelcerro | } |
67 | 44619 | jjdelcerro | |
68 | 44614 | jjdelcerro | private Expression createExpression() { |
69 | ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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70 | Expression e = manager.createExpression();
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71 | 44619 | jjdelcerro | return e;
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72 | 44614 | jjdelcerro | } |
73 | 44619 | jjdelcerro | |
74 | 43983 | jjdelcerro | // TODO add test methods here. The name must begin with 'test'. For example:
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75 | // public void testHello() {}
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76 | |||
77 | 44614 | jjdelcerro | public void testToJSON1() { |
78 | 43983 | jjdelcerro | String source = "precio + 10"; |
79 | |||
80 | 44614 | jjdelcerro | Expression expression = createExpression();
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81 | 43983 | jjdelcerro | expression.setPhrase(source); |
82 | 44619 | jjdelcerro | |
83 | 43983 | jjdelcerro | assertEquals( |
84 | 44619 | jjdelcerro | "{\"phrase\":\"precio + 10\"}",
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85 | 43984 | jjdelcerro | expression.toJSON() |
86 | 43983 | jjdelcerro | ); |
87 | } |
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88 | 44619 | jjdelcerro | |
89 | 44614 | jjdelcerro | public void testA() { |
90 | 44619 | jjdelcerro | |
91 | 44614 | jjdelcerro | Expression expression = createExpression();
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92 | expression.setPhrase("precio * 10");
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93 | 44619 | jjdelcerro | |
94 | 44614 | jjdelcerro | MutableSymbolTable t1 = createMutableSymbolTable(); |
95 | t1.setVar("precio", 2); |
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96 | Object v1 = expression.execute(t1);
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97 | 44619 | jjdelcerro | assertEquals(20, (int) v1); |
98 | |||
99 | 44614 | jjdelcerro | t1.setVar("precio", 3); |
100 | v1 = expression.execute(t1); |
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101 | 44619 | jjdelcerro | assertEquals(30, (int) v1); |
102 | |||
103 | 44614 | jjdelcerro | MutableSymbolTable t2 = createMutableSymbolTable(); |
104 | t2.setVar("precio", 4); |
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105 | v1 = expression.execute(t2); |
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106 | 44619 | jjdelcerro | assertEquals(40, (int) v1); |
107 | |||
108 | 44614 | jjdelcerro | } |
109 | 44619 | jjdelcerro | |
110 | public void testB() { |
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111 | |||
112 | Expression expression = createExpression();
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113 | 44622 | jjdelcerro | expression.setPhrase("MYVALUE()*10");
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114 | 44619 | jjdelcerro | |
115 | MyValueSymbolTable t1 = new MyValueSymbolTable("MyValueSymbolTable1"); |
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116 | t1.setValue(2);
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117 | Object v1 = expression.execute(t1);
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118 | 44622 | jjdelcerro | assertEquals(20, (int) v1); |
119 | 44619 | jjdelcerro | |
120 | t1.setValue(3);
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121 | v1 = expression.execute(t1); |
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122 | 44622 | jjdelcerro | assertEquals(30, (int) v1); |
123 | 44619 | jjdelcerro | |
124 | MyValueSymbolTable t2 = new MyValueSymbolTable("MyValueSymbolTable2"); |
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125 | t2.setValue(4);
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126 | v1 = expression.execute(t2); |
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127 | 44622 | jjdelcerro | assertEquals(40, (int) v1); |
128 | 44619 | jjdelcerro | |
129 | } |
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130 | |||
131 | 45153 | jjdelcerro | public void testAs() { |
132 | 44619 | jjdelcerro | |
133 | 45153 | jjdelcerro | Expression expression = createExpression();
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134 | expression.setPhrase("MYVALUE()*10 as n");
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135 | |||
136 | MyValueSymbolTable t1 = new MyValueSymbolTable("MyValueSymbolTable1"); |
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137 | t1.setValue(2);
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138 | Object v1 = expression.execute(t1);
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139 | assertEquals(20, (int) v1); |
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140 | assertEquals(20, (int) expression.getSymbolTable().value("n")); |
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141 | |||
142 | t1.setValue(3);
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143 | v1 = expression.execute(t1); |
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144 | assertEquals(30, (int) v1); |
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145 | assertEquals(30, (int) expression.getSymbolTable().value("n")); |
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146 | |||
147 | MyValueSymbolTable t2 = new MyValueSymbolTable("MyValueSymbolTable2"); |
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148 | t2.setValue(4);
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149 | v1 = expression.execute(t2); |
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150 | assertEquals(40, (int) v1); |
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151 | assertEquals(40, (int) expression.getSymbolTable().value("n")); |
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152 | |||
153 | } |
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154 | |||
155 | public void testCast1() { |
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156 | |||
157 | Expression expression = createExpression();
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158 | expression.setPhrase("CAST 10.1 AS INTEGER");
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159 | |||
160 | Object v1 = expression.execute(null); |
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161 | assertEquals("Integer", v1.getClass().getSimpleName());
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162 | assertEquals(10, (int) v1); |
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163 | } |
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164 | |||
165 | public void testCast2() { |
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166 | |||
167 | Expression expression = createExpression();
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168 | expression.setPhrase("CAST(10.1 AS INTEGER)");
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169 | |||
170 | Object v1 = expression.execute(null); |
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171 | assertEquals("Integer", v1.getClass().getSimpleName());
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172 | assertEquals(10, (int) v1); |
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173 | } |
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174 | |||
175 | public void testCastAndAs() { |
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176 | |||
177 | Expression expression = createExpression();
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178 | expression.setPhrase("CAST 10.1 AS INTEGER AS N");
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179 | |||
180 | Object v1 = expression.execute(null); |
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181 | assertEquals("Integer", v1.getClass().getSimpleName());
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182 | assertEquals(10, (int) v1); |
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183 | |||
184 | Object n = expression.getSymbolTable().value("n"); |
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185 | assertEquals("Integer", n.getClass().getSimpleName());
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186 | assertEquals(10, (int) n); |
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187 | } |
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188 | 43983 | jjdelcerro | } |