01: /* Copyright (C) 2004 - 2007 db4objects Inc. http://www.db4o.com
02:
03: This file is part of the db4o open source object database.
04:
05: db4o is free software; you can redistribute it and/or modify it under
06: the terms of version 2 of the GNU General Public License as published
07: by the Free Software Foundation and as clarified by db4objects' GPL
08: interpretation policy, available at
09: http://www.db4o.com/about/company/legalpolicies/gplinterpretation/
10: Alternatively you can write to db4objects, Inc., 1900 S Norfolk Street,
11: Suite 350, San Mateo, CA 94403, USA.
12:
13: db4o is distributed in the hope that it will be useful, but WITHOUT ANY
14: WARRANTY; without even the implied warranty of MERCHANTABILITY or
15: FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16: for more details.
17:
18: You should have received a copy of the GNU General Public License along
19: with this program; if not, write to the Free Software Foundation, Inc.,
20: 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21: package com.db4o.db4ounit.common.foundation;
22:
23: import com.db4o.foundation.*;
24:
25: import db4ounit.*;
26:
27: public class Stack4TestCase implements TestCase {
28:
29: public static void main(String[] args) {
30: new TestRunner(Stack4TestCase.class).run();
31: }
32:
33: public void testPushPop() {
34: final Stack4 stack = new Stack4();
35: assertEmpty(stack);
36: stack.push("a");
37: stack.push("b");
38: stack.push("c");
39: Assert.isFalse(stack.isEmpty());
40: Assert.areEqual("c", stack.peek());
41: Assert.areEqual("c", stack.peek());
42: Assert.areEqual("c", stack.pop());
43: Assert.areEqual("b", stack.pop());
44: Assert.areEqual("a", stack.peek());
45: Assert.areEqual("a", stack.pop());
46: assertEmpty(stack);
47: }
48:
49: private void assertEmpty(final Stack4 stack) {
50: Assert.isTrue(stack.isEmpty());
51: Assert.isNull(stack.peek());
52: Assert.expect(IllegalStateException.class, new CodeBlock() {
53: public void run() throws Throwable {
54: stack.pop();
55: }
56: });
57: }
58:
59: }
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