ConstructorTest.java revision 89c1feb0a69a7707b271086e749975b3f7acacf7 
1/*
2 *  Licensed to the Apache Software Foundation (ASF) under one or more
3 *  contributor license agreements.  See the NOTICE file distributed with
4 *  this work for additional information regarding copyright ownership.
5 *  The ASF licenses this file to You under the Apache License, Version 2.0
6 *  (the "License"); you may not use this file except in compliance with
7 *  the License.  You may obtain a copy of the License at
8 *
9 *     http://www.apache.org/licenses/LICENSE-2.0
10 *
11 *  Unless required by applicable law or agreed to in writing, software
12 *  distributed under the License is distributed on an "AS IS" BASIS,
13 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 *  See the License for the specific language governing permissions and
15 *  limitations under the License.
16 */
17
18package tests.api.java.lang.reflect;
19
20import dalvik.annotation.TestInfo;
21import dalvik.annotation.TestLevel;
22import dalvik.annotation.TestTarget;
23import dalvik.annotation.TestTargetClass;
24
25import java.lang.reflect.Constructor;
26import java.lang.reflect.Modifier;
27
28@TestTargetClass(Constructor.class)
29public class ConstructorTest extends junit.framework.TestCase {
30
31    static class ConstructorTestHelper extends Object {
32        int cval;
33
34        public ConstructorTestHelper() throws IndexOutOfBoundsException {
35            cval = 99;
36        }
37
38        public ConstructorTestHelper(Object x) {
39        }
40
41        private ConstructorTestHelper(int a) {
42        }
43
44        protected ConstructorTestHelper(long a) {
45        }
46
47        public int check() {
48            return cval;
49        }
50    }
51
52    /**
53     * @tests java.lang.reflect.Constructor#equals(java.lang.Object)
54     */
55    @TestInfo(
56      level = TestLevel.COMPLETE,
57      purpose = "",
58      targets = {
59        @TestTarget(
60          methodName = "equals",
61          methodArgs = {java.lang.Object.class}
62        )
63    })
64    public void test_equalsLjava_lang_Object() {
65        // Test for method boolean
66        // java.lang.reflect.Constructor.equals(java.lang.Object)
67        Class[] types = null;
68        Constructor ctor1 = null, ctor2 = null;
69        try {
70            ctor1 = new ConstructorTestHelper().getClass().getConstructor(
71                    new Class[0]);
72
73            Class[] parms = null;
74            parms = new Class[1];
75            parms[0] = new Object().getClass();
76            ctor2 = new ConstructorTestHelper().getClass()
77                    .getConstructor(parms);
78        } catch (Exception e) {
79            fail("Exception during equals test : " + e.getMessage());
80        }
81        assertTrue("Different Contructors returned equal", !ctor1.equals(ctor2));
82    }
83
84    /**
85     * @tests java.lang.reflect.Constructor#getDeclaringClass()
86     */
87    @TestInfo(
88      level = TestLevel.COMPLETE,
89      purpose = "",
90      targets = {
91        @TestTarget(
92          methodName = "getDeclaringClass",
93          methodArgs = {}
94        )
95    })
96    public void test_getDeclaringClass() {
97        // Test for method java.lang.Class
98        // java.lang.reflect.Constructor.getDeclaringClass()
99        boolean val = false;
100        try {
101            Class pclass = new ConstructorTestHelper().getClass();
102            Constructor ctor = pclass.getConstructor(new Class[0]);
103            val = ctor.getDeclaringClass().equals(pclass);
104        } catch (Exception e) {
105            fail("Exception during test : " + e.getMessage());
106        }
107        assertTrue("Returned incorrect declaring class", val);
108    }
109
110    /**
111     * @tests java.lang.reflect.Constructor#getExceptionTypes()
112     */
113    @TestInfo(
114      level = TestLevel.COMPLETE,
115      purpose = "",
116      targets = {
117        @TestTarget(
118          methodName = "getExceptionTypes",
119          methodArgs = {}
120        )
121    })
122    public void test_getExceptionTypes() {
123        // Test for method java.lang.Class []
124        // java.lang.reflect.Constructor.getExceptionTypes()
125        Class[] exceptions = null;
126        Class ex = null;
127        try {
128            Constructor ctor = new ConstructorTestHelper().getClass()
129                    .getConstructor(new Class[0]);
130            exceptions = ctor.getExceptionTypes();
131            ex = new IndexOutOfBoundsException().getClass();
132        } catch (Exception e) {
133            fail("Exception during test : " + e.getMessage());
134        }
135        assertEquals("Returned exception list of incorrect length",
136                1, exceptions.length);
137        assertTrue("Returned incorrect exception", exceptions[0].equals(ex));
138    }
139
140    /**
141     * @tests java.lang.reflect.Constructor#getModifiers()
142     */
143    @TestInfo(
144      level = TestLevel.COMPLETE,
145      purpose = "",
146      targets = {
147        @TestTarget(
148          methodName = "getModifiers",
149          methodArgs = {}
150        )
151    })
152    public void test_getModifiers() {
153        // Test for method int java.lang.reflect.Constructor.getModifiers()
154        int mod = 0;
155        try {
156            Constructor ctor = new ConstructorTestHelper().getClass()
157                    .getConstructor(new Class[0]);
158            mod = ctor.getModifiers();
159            assertTrue("Returned incorrect modifers for public ctor",
160                    ((mod & Modifier.PUBLIC) == Modifier.PUBLIC)
161                            && ((mod & Modifier.PRIVATE) == 0));
162        } catch (NoSuchMethodException e) {
163            fail("Exception during test : " + e.getMessage());
164        }
165        try {
166            Class[] cl = { int.class };
167            Constructor ctor = new ConstructorTestHelper().getClass()
168                    .getDeclaredConstructor(cl);
169            mod = ctor.getModifiers();
170            assertTrue("Returned incorrect modifers for private ctor",
171                    ((mod & Modifier.PRIVATE) == Modifier.PRIVATE)
172                            && ((mod & Modifier.PUBLIC) == 0));
173        } catch (NoSuchMethodException e) {
174            fail("Exception during test : " + e.getMessage());
175        }
176        try {
177            Class[] cl = { long.class };
178            Constructor ctor = new ConstructorTestHelper().getClass()
179                    .getDeclaredConstructor(cl);
180            mod = ctor.getModifiers();
181            assertTrue("Returned incorrect modifers for private ctor",
182                    ((mod & Modifier.PROTECTED) == Modifier.PROTECTED)
183                            && ((mod & Modifier.PUBLIC) == 0));
184        } catch (NoSuchMethodException e) {
185            fail("NoSuchMethodException during test : " + e.getMessage());
186        }
187    }
188
189    /**
190     * @tests java.lang.reflect.Constructor#getName()
191     */
192    @TestInfo(
193      level = TestLevel.COMPLETE,
194      purpose = "",
195      targets = {
196        @TestTarget(
197          methodName = "getName",
198          methodArgs = {}
199        )
200    })
201    public void test_getName() {
202        // Test for method java.lang.String
203        // java.lang.reflect.Constructor.getName()
204        try {
205            Constructor ctor = new ConstructorTestHelper().getClass()
206                    .getConstructor(new Class[0]);
207            assertTrue(
208                    "Returned incorrect name: " + ctor.getName(),
209                    ctor
210                            .getName()
211                            .equals(
212                                    "tests.api.java.lang.reflect.ConstructorTest$ConstructorTestHelper"));
213        } catch (Exception e) {
214            fail("Exception obtaining contructor : " + e.getMessage());
215        }
216    }
217
218    /**
219     * @tests java.lang.reflect.Constructor#getParameterTypes()
220     */
221    @TestInfo(
222      level = TestLevel.COMPLETE,
223      purpose = "",
224      targets = {
225        @TestTarget(
226          methodName = "getParameterTypes",
227          methodArgs = {}
228        )
229    })
230    public void test_getParameterTypes() {
231        // Test for method java.lang.Class []
232        // java.lang.reflect.Constructor.getParameterTypes()
233        Class[] types = null;
234        try {
235            Constructor ctor = new ConstructorTestHelper().getClass()
236                    .getConstructor(new Class[0]);
237            types = ctor.getParameterTypes();
238        } catch (Exception e) {
239            fail("Exception during getParameterTypes test:"
240                    + e.toString());
241        }
242        assertEquals("Incorrect parameter returned", 0, types.length);
243
244        Class[] parms = null;
245        try {
246            parms = new Class[1];
247            parms[0] = new Object().getClass();
248            Constructor ctor = new ConstructorTestHelper().getClass()
249                    .getConstructor(parms);
250            types = ctor.getParameterTypes();
251        } catch (Exception e) {
252            fail("Exception during getParameterTypes test:"
253                    + e.toString());
254        }
255        assertTrue("Incorrect parameter returned", types[0].equals(parms[0]));
256    }
257
258    /**
259     * @tests java.lang.reflect.Constructor#newInstance(java.lang.Object[])
260     */
261    @TestInfo(
262      level = TestLevel.COMPLETE,
263      purpose = "",
264      targets = {
265        @TestTarget(
266          methodName = "newInstance",
267          methodArgs = {java.lang.Object[].class}
268        )
269    })
270    public void test_newInstance$Ljava_lang_Object() {
271        // Test for method java.lang.Object
272        // java.lang.reflect.Constructor.newInstance(java.lang.Object [])
273
274        ConstructorTestHelper test = null;
275        try {
276            Constructor ctor = new ConstructorTestHelper().getClass()
277                    .getConstructor(new Class[0]);
278            test = (ConstructorTestHelper) ctor.newInstance((Object[])null);
279        } catch (Exception e) {
280            fail("Failed to create instance : " + e.getMessage());
281        }
282        assertEquals("improper instance created", 99, test.check());
283    }
284
285    /**
286     * @tests java.lang.reflect.Constructor#toString()
287     */
288    @TestInfo(
289      level = TestLevel.COMPLETE,
290      purpose = "",
291      targets = {
292        @TestTarget(
293          methodName = "toString",
294          methodArgs = {}
295        )
296    })
297    public void test_toString() {
298        // Test for method java.lang.String
299        // java.lang.reflect.Constructor.toString()
300        Class[] parms = null;
301        Constructor ctor = null;
302        try {
303            parms = new Class[1];
304            parms[0] = new Object().getClass();
305            ctor = new ConstructorTestHelper().getClass().getConstructor(parms);
306        } catch (Exception e) {
307            fail("Exception during getParameterTypes test:"
308                    + e.toString());
309        }
310        assertTrue(
311                "Returned incorrect string representation: " + ctor.toString(),
312                ctor
313                        .toString()
314                        .equals(
315                                "public tests.api.java.lang.reflect.ConstructorTest$ConstructorTestHelper(java.lang.Object)"));
316    }
317
318    /**
319     * Sets up the fixture, for example, open a network connection. This method
320     * is called before a test is executed.
321     */
322    protected void setUp() {
323    }
324
325    /**
326     * Tears down the fixture, for example, close a network connection. This
327     * method is called after a test is executed.
328     */
329    protected void tearDown() {
330    }
331}
332