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32 package jp.sourceforge.rpn_computer.test;
33
34 import jp.sourceforge.rpn_computer.RpnCommand;
35 import jp.sourceforge.rpn_computer.RpnCommandList;
36 import jp.sourceforge.rpn_computer.RpnCompiler;
37 import jp.sourceforge.rpn_computer.RpnNode;
38 import jp.sourceforge.rpn_computer.RpnParser;
39 import jp.sourceforge.rpn_computer.command.AddCommand;
40 import jp.sourceforge.rpn_computer.command.DivideCommand;
41 import jp.sourceforge.rpn_computer.command.MultiplyCommand;
42 import jp.sourceforge.rpn_computer.command.PushStackCommand;
43 import jp.sourceforge.rpn_computer.command.SubtractCommand;
44 import junit.framework.TestCase;
45
46 /**
47 * コンパイルのテストを行います。
48 *
49 * @author uguu@users.sourceforge.jp
50 */
51 public class RpnCompilerTest extends TestCase {
52
53 /**
54 * インスタンスを初期化します。
55 *
56 * @param name
57 * テストの名前。
58 */
59 public RpnCompilerTest(String name) {
60 super(name);
61 }
62
63 /**
64 * 正常系テスト1。
65 */
66 public void testNormal1() {
67 String exp = "(1.2 + 3.4) * (5.6 - 7.8 / (9.0 + 0.1))";
68
69 RpnParser parser = new RpnParser();
70 RpnNode node = parser.parse(exp);
71
72 RpnCompiler compiler = new RpnCompiler();
73 RpnCommandList cl = compiler.compile(node);
74 RpnCommand[] commands = cl.getCommands();
75
76 assertEquals(11, commands.length);
77
78 RpnCommand c = commands[0];
79 assertTrue(c instanceof PushStackCommand);
80 assertEquals("push_stack[1.2]", c.toString());
81
82 c = commands[1];
83 assertTrue(c instanceof PushStackCommand);
84 assertEquals("push_stack[3.4]", c.toString());
85
86 c = commands[2];
87 assertTrue(c instanceof AddCommand);
88 assertEquals("add", c.toString());
89
90 c = commands[3];
91 assertTrue(c instanceof PushStackCommand);
92 assertEquals("push_stack[5.6]", c.toString());
93
94 c = commands[4];
95 assertTrue(c instanceof PushStackCommand);
96 assertEquals("push_stack[7.8]", c.toString());
97
98 c = commands[5];
99 assertTrue(c instanceof PushStackCommand);
100 assertEquals("push_stack[9.0]", c.toString());
101
102 c = commands[6];
103 assertTrue(c instanceof PushStackCommand);
104 assertEquals("push_stack[0.1]", c.toString());
105
106 c = commands[7];
107 assertTrue(c instanceof AddCommand);
108 assertEquals("add", c.toString());
109
110 c = commands[8];
111 assertTrue(c instanceof DivideCommand);
112 assertEquals("divide", c.toString());
113
114 c = commands[9];
115 assertTrue(c instanceof SubtractCommand);
116 assertEquals("subtract", c.toString());
117
118 c = commands[10];
119 assertTrue(c instanceof MultiplyCommand);
120 assertEquals("multiply", c.toString());
121 }
122
123 /**
124 * 異常系テスト1。{@link RpnCompiler#compile(RpnNode)}メソッドのnodeがnullのとき、{@link NullPointerException}例外がスローされることを確認します。
125 */
126 public void testFail1() {
127 RpnCompiler compiler = new RpnCompiler();
128 try {
129 compiler.compile(null);
130 fail();
131 } catch (NullPointerException e) {
132 assertEquals("nodeがnullです。", e.getMessage());
133 }
134 }
135 }