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https://github.com/marcin-szczepanski/jFuzzyLogic.git
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204 lines
7.6 KiB
Java
204 lines
7.6 KiB
Java
/*
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[The "BSD licence"]
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Copyright (c) 2005-2006 Terence Parr
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. The name of the author may not be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package org.antlr.test;
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import org.antlr.runtime.CommonToken;
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import org.antlr.runtime.Token;
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import org.antlr.runtime.tree.CommonTree;
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import org.antlr.runtime.tree.CommonTreeNodeStream;
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import org.antlr.runtime.tree.Tree;
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/** Tests specific to CommonTreeNodeStream */
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public class TestCommonTreeNodeStream extends TestTreeNodeStream {
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public void testPushPop() throws Exception {
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// ^(101 ^(102 103) ^(104 105) ^(106 107) 108 109)
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// stream has 9 real + 8 nav nodes
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// Sequence of types: 101 DN 102 DN 103 UP 104 DN 105 UP 106 DN 107 UP 108 109 UP
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Tree r0 = new CommonTree(new CommonToken(101));
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Tree r1 = new CommonTree(new CommonToken(102));
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r1.addChild(new CommonTree(new CommonToken(103)));
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r0.addChild(r1);
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Tree r2 = new CommonTree(new CommonToken(104));
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r2.addChild(new CommonTree(new CommonToken(105)));
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r0.addChild(r2);
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Tree r3 = new CommonTree(new CommonToken(106));
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r3.addChild(new CommonTree(new CommonToken(107)));
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r0.addChild(r3);
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r0.addChild(new CommonTree(new CommonToken(108)));
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r0.addChild(new CommonTree(new CommonToken(109)));
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CommonTreeNodeStream stream = new CommonTreeNodeStream(r0);
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String expecting = " 101 2 102 2 103 3 104 2 105 3 106 2 107 3 108 109 3";
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String found = stream.toString();
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assertEquals(expecting, found);
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// Assume we want to hit node 107 and then "call 102" then return
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int indexOf102 = 2;
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int indexOf107 = 12;
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for (int k=1; k<=indexOf107; k++) { // consume til 107 node
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stream.consume();
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}
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// CALL 102
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assertEquals(107, ((Tree)stream.LT(1)).getType());
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stream.push(indexOf102);
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assertEquals(102, ((Tree)stream.LT(1)).getType());
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stream.consume(); // consume 102
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assertEquals(Token.DOWN, ((Tree)stream.LT(1)).getType());
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stream.consume(); // consume DN
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assertEquals(103, ((Tree)stream.LT(1)).getType());
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stream.consume(); // consume 103
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assertEquals(Token.UP, ((Tree)stream.LT(1)).getType());
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// RETURN
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stream.pop();
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assertEquals(107, ((Tree)stream.LT(1)).getType());
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}
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public void testNestedPushPop() throws Exception {
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// ^(101 ^(102 103) ^(104 105) ^(106 107) 108 109)
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// stream has 9 real + 8 nav nodes
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// Sequence of types: 101 DN 102 DN 103 UP 104 DN 105 UP 106 DN 107 UP 108 109 UP
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Tree r0 = new CommonTree(new CommonToken(101));
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Tree r1 = new CommonTree(new CommonToken(102));
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r1.addChild(new CommonTree(new CommonToken(103)));
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r0.addChild(r1);
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Tree r2 = new CommonTree(new CommonToken(104));
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r2.addChild(new CommonTree(new CommonToken(105)));
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r0.addChild(r2);
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Tree r3 = new CommonTree(new CommonToken(106));
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r3.addChild(new CommonTree(new CommonToken(107)));
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r0.addChild(r3);
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r0.addChild(new CommonTree(new CommonToken(108)));
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r0.addChild(new CommonTree(new CommonToken(109)));
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CommonTreeNodeStream stream = new CommonTreeNodeStream(r0);
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// Assume we want to hit node 107 and then "call 102", which
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// calls 104, then return
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int indexOf102 = 2;
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int indexOf107 = 12;
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for (int k=1; k<=indexOf107; k++) { // consume til 107 node
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stream.consume();
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}
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assertEquals(107, ((Tree)stream.LT(1)).getType());
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// CALL 102
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stream.push(indexOf102);
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assertEquals(102, ((Tree)stream.LT(1)).getType());
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stream.consume(); // consume 102
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assertEquals(Token.DOWN, ((Tree)stream.LT(1)).getType());
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stream.consume(); // consume DN
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assertEquals(103, ((Tree)stream.LT(1)).getType());
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stream.consume(); // consume 103
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// CALL 104
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int indexOf104 = 6;
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stream.push(indexOf104);
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assertEquals(104, ((Tree)stream.LT(1)).getType());
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stream.consume(); // consume 102
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assertEquals(Token.DOWN, ((Tree)stream.LT(1)).getType());
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stream.consume(); // consume DN
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assertEquals(105, ((Tree)stream.LT(1)).getType());
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stream.consume(); // consume 103
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assertEquals(Token.UP, ((Tree)stream.LT(1)).getType());
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// RETURN (to UP node in 102 subtree)
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stream.pop();
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assertEquals(Token.UP, ((Tree)stream.LT(1)).getType());
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// RETURN (to empty stack)
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stream.pop();
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assertEquals(107, ((Tree)stream.LT(1)).getType());
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}
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public void testPushPopFromEOF() throws Exception {
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// ^(101 ^(102 103) ^(104 105) ^(106 107) 108 109)
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// stream has 9 real + 8 nav nodes
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// Sequence of types: 101 DN 102 DN 103 UP 104 DN 105 UP 106 DN 107 UP 108 109 UP
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Tree r0 = new CommonTree(new CommonToken(101));
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Tree r1 = new CommonTree(new CommonToken(102));
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r1.addChild(new CommonTree(new CommonToken(103)));
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r0.addChild(r1);
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Tree r2 = new CommonTree(new CommonToken(104));
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r2.addChild(new CommonTree(new CommonToken(105)));
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r0.addChild(r2);
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Tree r3 = new CommonTree(new CommonToken(106));
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r3.addChild(new CommonTree(new CommonToken(107)));
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r0.addChild(r3);
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r0.addChild(new CommonTree(new CommonToken(108)));
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r0.addChild(new CommonTree(new CommonToken(109)));
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CommonTreeNodeStream stream = new CommonTreeNodeStream(r0);
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while ( stream.LA(1)!=Token.EOF ) {
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stream.consume();
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}
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int indexOf102 = 2;
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int indexOf104 = 6;
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assertEquals(Token.EOF, ((Tree)stream.LT(1)).getType());
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// CALL 102
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stream.push(indexOf102);
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assertEquals(102, ((Tree)stream.LT(1)).getType());
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stream.consume(); // consume 102
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assertEquals(Token.DOWN, ((Tree)stream.LT(1)).getType());
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stream.consume(); // consume DN
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assertEquals(103, ((Tree)stream.LT(1)).getType());
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stream.consume(); // consume 103
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assertEquals(Token.UP, ((Tree)stream.LT(1)).getType());
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// RETURN (to empty stack)
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stream.pop();
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assertEquals(Token.EOF, ((Tree)stream.LT(1)).getType());
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// CALL 104
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stream.push(indexOf104);
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assertEquals(104, ((Tree)stream.LT(1)).getType());
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stream.consume(); // consume 102
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assertEquals(Token.DOWN, ((Tree)stream.LT(1)).getType());
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stream.consume(); // consume DN
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assertEquals(105, ((Tree)stream.LT(1)).getType());
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stream.consume(); // consume 103
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assertEquals(Token.UP, ((Tree)stream.LT(1)).getType());
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// RETURN (to empty stack)
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stream.pop();
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assertEquals(Token.EOF, ((Tree)stream.LT(1)).getType());
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}
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public void testStackStretch() throws Exception {
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// make more than INITIAL_CALL_STACK_SIZE pushes
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Tree r0 = new CommonTree(new CommonToken(101));
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CommonTreeNodeStream stream = new CommonTreeNodeStream(r0);
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// go 1 over initial size
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for (int i=1; i<=CommonTreeNodeStream.INITIAL_CALL_STACK_SIZE+1; i++) {
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stream.push(i);
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}
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assertEquals(10, stream.pop());
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assertEquals(9, stream.pop());
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}
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}
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