[15023] | 1 | /*
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| 2 | * The Apache Software License, Version 1.1
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| 3 | *
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| 4 | * Copyright (c) 2001-2002 The Apache Software Foundation. All rights
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| 5 | * reserved.
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| 6 | *
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| 7 | * Redistribution and use in source and binary forms, with or without
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| 8 | * modification, are permitted provided that the following conditions
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| 9 | * are met:
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| 10 | *
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| 11 | * 1. Redistributions of source code must retain the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer.
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| 13 | *
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| 14 | * 2. Redistributions in binary form must reproduce the above copyright
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| 15 | * notice, this list of conditions and the following disclaimer in
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| 16 | * the documentation and/or other materials provided with the
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| 17 | * distribution.
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| 18 | *
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| 19 | * 3. The end-user documentation included with the redistribution, if
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| 20 | * any, must include the following acknowlegement:
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| 21 | * "This product includes software developed by the
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| 22 | * Apache Software Foundation (http://www.apache.org/)."
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| 23 | * Alternately, this acknowlegement may appear in the software itself,
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| 24 | * if and wherever such third-party acknowlegements normally appear.
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| 25 | *
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| 26 | * 4. The names "The Jakarta Project", "Ant", and "Apache Software
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| 27 | * Foundation" must not be used to endorse or promote products derived
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| 28 | * from this software without prior written permission. For written
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| 29 | * permission, please contact [email protected].
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| 30 | *
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| 31 | * 5. Products derived from this software may not be called "Apache"
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| 32 | * nor may "Apache" appear in their names without prior written
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| 33 | * permission of the Apache Group.
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| 34 | *
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| 35 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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| 36 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 37 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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| 38 | * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
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| 39 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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| 40 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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| 41 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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| 42 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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| 43 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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| 44 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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| 45 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 46 | * SUCH DAMAGE.
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| 47 | * ====================================================================
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| 48 | *
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| 49 | * This software consists of voluntary contributions made by many
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| 50 | * individuals on behalf of the Apache Software Foundation. For more
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| 51 | * information on the Apache Software Foundation, please see
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| 52 | * <http://www.apache.org/>.
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| 53 | */
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| 54 | package ise.antelope.tasks;
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| 55 |
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| 56 |
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| 57 | import java.util.Enumeration;
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| 58 | import java.util.Vector;
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| 59 |
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| 60 | import org.apache.tools.ant.BuildException;
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| 61 | import org.apache.tools.ant.Project;
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| 62 | import org.apache.tools.ant.Task;
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| 63 | import org.apache.tools.ant.TaskContainer;
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| 64 | import org.apache.tools.ant.types.EnumeratedAttribute;
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| 65 |
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| 66 |
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| 67 | /**
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| 68 | * Based on the Sequential task. Similar to Java's 'assert' keyword, verifies
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| 69 | * that a given property has a given value. Throws a BuildException if the
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| 70 | * property value is not as expected or the property does not exist. <p>
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| 71 | *
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| 72 | * Also like Java's 'assert' keyword, the Assert task must be 'turned on' using
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| 73 | * the property "ant.enable.asserts". If not set, or is set to false, the Assert
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| 74 | * task works exactly like the Sequential task. <p>
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| 75 | *
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| 76 | * Can hold other tasks including Assert. Attributes:
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| 77 | * <ul>
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| 78 | * <li> name - the name of a property. Required.</li>
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| 79 | * <li> exists - boolean, if true, throws BuildException if the property does
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| 80 | * not exist. Optional, default is true.</li>
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| 81 | * <li> value - the expected value of a property. Implies 'exists'. Throws
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| 82 | * BuildException if the actual value is not the same as this value. Optional.
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| 83 | * </li>
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| 84 | * <li> execute - boolean, if true, execute any contained tasks. Optional,
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| 85 | * default is true. Can also be set globally by setting the value of
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| 86 | * "assert.execute" to true or false. The local setting overrides the global
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| 87 | * setting.</li> <p>
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| 88 | *
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| 89 | * The assert task supports a single nested BooleanCondition task, otherwise,
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| 90 | * the assert task does not support any nested elements apart from Ant tasks.
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| 91 | * Any valid Ant task may be embedded within the assert task.</p>
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| 92 | *
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| 93 | * @author Dale Anson, [email protected]
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| 94 | * @version $Revision: 1.5 $
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| 95 | * @since Ant 1.5
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| 96 | */
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| 97 | public class Assert extends Task implements TaskContainer {
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| 98 |
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| 99 | // attribute storage
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| 100 | private boolean failOnError = true;
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| 101 | private boolean failOnErrorSetByUser = false;
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| 102 | private String execute = null;
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| 103 | private boolean exists = true;
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| 104 | private String value = null;
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| 105 | private String name = null;
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| 106 | private String message = "";
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| 107 | private int level = AssertException.ERROR;
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| 108 |
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| 109 | // to hold optional nested boolean task
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| 110 | private Task condition_task = null;
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| 111 |
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| 112 | // vector to hold any nested tasks
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| 113 | private Vector tasks = new Vector();
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| 114 |
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| 115 | /**
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| 116 | * Set the name of the property to test. Required.
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| 117 | *
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| 118 | * @param name the name of the property to test.
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| 119 | */
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| 120 | public void setName(String name) {
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| 121 | this.name = name;
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| 122 | }
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| 123 |
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| 124 | /**
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| 125 | * Set the expected value of the property. Implies 'exists'. Throws
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| 126 | * BuildException if the actual value is not the same as this value.
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| 127 | * Optional.
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| 128 | *
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| 129 | * @param value the expected value of the property.
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| 130 | */
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| 131 | public void setValue(String value) {
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| 132 | this.value = value;
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| 133 | }
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| 134 |
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| 135 | /**
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| 136 | * Set a specific message to include in the output in the event this assert
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| 137 | * fails.
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| 138 | *
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| 139 | * @param msg the message to include
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| 140 | */
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| 141 | public void setMessage(String msg) {
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| 142 | if (msg == null)
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| 143 | return;
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| 144 | this.message = msg;
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| 145 | }
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| 146 |
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| 147 |
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| 148 | /**
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| 149 | * Set the 'exists' attribute. If true, throws BuildException if the
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| 150 | * property does not exist. Optional, default is true.
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| 151 | *
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| 152 | * @param exists Ant boolean, whether the value must exist.
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| 153 | */
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| 154 | public void setExists(String exists) {
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| 155 | this.exists = getProject().toBoolean(exists);
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| 156 | }
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| 157 |
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| 158 | /**
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| 159 | * Ant boolean, if true, execute any contained tasks. Optional, default is
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| 160 | * true. Can also be set globally by setting the value of "assert.execute"
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| 161 | * to true or false. The local setting overrides the global setting.
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| 162 | *
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| 163 | * @param execute Ant boolean, whether to execute contained tasks.
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| 164 | */
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| 165 | public void setExecute(String execute) {
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| 166 | this.execute = execute;
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| 167 | }
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| 168 |
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| 169 | /**
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| 170 | * Ant boolean, stop the build process if the assertion fails. Defaults to
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| 171 | * true. Setting this to false is contrary to the intented use of
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| 172 | * assertions, but may be useful in certain situations.
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| 173 | *
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| 174 | * @param fail Ant boolean, whether to stop the build on assertion error.
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| 175 | */
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| 176 | public void setFailonerror(boolean fail) {
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| 177 | failOnError = fail;
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| 178 | failOnErrorSetByUser = true;
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| 179 | }
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| 180 |
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| 181 | /**
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| 182 | * Sets the assertion level. This is like message level or debug level,
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| 183 | * valid values are "error" (the default), "warning", "info", and "debug".
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| 184 | * Setting the level to "warning", "info", or "debug" will force the
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| 185 | * fail on error setting to false.
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| 186 | * @param assertlevel one of "error", "warning", "info", or "debug" levels.
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| 187 | */
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| 188 | public void setLevel(AssertLevel assertlevel) {
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| 189 | level = assertlevel.indexOfValue(assertlevel.getValue());
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| 190 | }
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| 191 |
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| 192 | /**
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| 193 | * Override {@link org.apache.tools.ant.Task#maybeConfigure maybeConfigure}
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| 194 | * in a way that leaves the nested tasks unconfigured until they get
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| 195 | * executed.
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| 196 | *
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| 197 | * @exception BuildException Description of Exception
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| 198 | * @since Ant 1.5
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| 199 | */
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| 200 | public void maybeConfigure() throws BuildException {
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| 201 | if (isInvalid()) {
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| 202 | super.maybeConfigure();
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| 203 | }
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| 204 | else {
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| 205 | getRuntimeConfigurableWrapper().maybeConfigure(getProject(), false);
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| 206 | }
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| 207 | }
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| 208 |
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| 209 | /**
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| 210 | * Add a nested task to execute. <p>
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| 211 | *
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| 212 | * @param task Nested task to execute. <p>
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| 213 | */
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| 214 | public void addTask(Task task) {
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| 215 | if (task instanceof BooleanConditionTask) {
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| 216 | if (condition_task == null) {
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| 217 | condition_task = task;
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| 218 | return;
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| 219 | }
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| 220 | else {
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| 221 | throw new BuildException("Only one <bool> or <condition> allowed per Assert.");
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| 222 | }
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| 223 | }
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| 224 | tasks.addElement(task);
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| 225 | }
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| 226 |
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| 227 | /**
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| 228 | * Adds a feature to the Bool attribute of the Assert object
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| 229 | *
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| 230 | * @param boolTask The feature to be added to the Bool attribute
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| 231 | */
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| 232 | public void addBool(BooleanConditionTask boolTask) {
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| 233 | addTask(boolTask);
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| 234 | }
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| 235 |
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| 236 | /**
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| 237 | * Execute this task and all nested Tasks.
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| 238 | *
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| 239 | * @exception BuildException Description of Exception
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| 240 | */
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| 241 | public void execute() throws BuildException {
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| 242 | // adjust failOnError depending on level and user setting
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| 243 | if (!failOnErrorSetByUser) {
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| 244 | switch (level) {
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| 245 | default: // error
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| 246 | failOnError = true;
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| 247 | break;
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| 248 | case 2: // warning
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| 249 | case 3: // info
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| 250 | case 4: // debug
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| 251 | failOnError = false;
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| 252 | break;
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| 253 | }
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| 254 | }
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| 255 |
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| 256 | // check for global 'ant.enable.asserts' property -- if this isn't set or
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| 257 | // is set to false, just run the nested tasks and skip the assertion
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| 258 | // testing.
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| 259 | String use_asserts = getProject().getProperty("ant.enable.asserts");
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| 260 | if (use_asserts == null || !getProject().toBoolean(use_asserts)) {
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| 261 | executeNestedTasks();
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| 262 | return;
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| 263 | }
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| 264 |
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| 265 | if (condition_task == null) {
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| 266 | // check for the required name attribute
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| 267 | if (name == null || name.equals(""))
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| 268 | throw new BuildException("The 'name' attribute is required.");
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| 269 |
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| 270 | // get the property value from the project
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| 271 | String prop_value = getProject().getProperty(name);
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| 272 |
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| 273 | // check if the property exists
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| 274 | if (exists && prop_value == null) {
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| 275 | String msg = "Assertion failed: Property '" + name + "' doesn't exist in this project.\n" + message;
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| 276 | if (failOnError)
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| 277 | throw new BuildException(msg);
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| 278 | else
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| 279 | log(msg, Project.MSG_WARN);
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| 280 | }
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| 281 | else if (!exists && prop_value != null) {
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| 282 | String msg = "Assertion failed: Property '" + name + "' exists in this project, but shouldn't.\n" + message;
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| 283 | if (failOnError)
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| 284 | throw new BuildException(msg);
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| 285 | else
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| 286 | log(msg, Project.MSG_WARN);
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| 287 | }
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| 288 |
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| 289 | // do the actual assert checks...
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| 290 | // check that the property has the right value
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| 291 | if (value != null) {
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| 292 | if (prop_value == null) {
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| 293 | String msg = "Assertion failed: Expected '" + value + "', but was null\n" + message;
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| 294 | if (failOnError)
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| 295 | throw new AssertException(msg, level);
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| 296 | else
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| 297 | log(msg, Project.MSG_WARN);
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| 298 | }
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| 299 | else if (prop_value != null) {
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| 300 | // check if this is a boolean value
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| 301 | String b = prop_value.toLowerCase();
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| 302 | boolean have_boolean = false;
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| 303 | if (b.equals("on") || b.equals("yes") || b.equals("true") ||
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| 304 | b.equals("off") || b.equals("no") || b.equals("false"))
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| 305 | have_boolean = true;
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| 306 |
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| 307 | if (have_boolean) {
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| 308 | // convert 'value' to boolean and compare
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| 309 | boolean prop_bvalue = getProject().toBoolean(prop_value);
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| 310 | boolean bvalue = getProject().toBoolean(value);
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| 311 | if (prop_bvalue != bvalue) {
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| 312 | String msg = "Assertion failed: Expected '" + bvalue + "', but was '" + prop_bvalue + "'.\n" + message;
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| 313 | if (failOnError)
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| 314 | throw new AssertException(msg, level);
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| 315 | else
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| 316 | log(msg, Project.MSG_WARN);
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| 317 | }
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| 318 | }
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| 319 | else if (!prop_value.equals(value)) {
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| 320 | // property values are different
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| 321 | String msg = "Assertion failed: Expected '" + value + "', but was '" + prop_value + "'.\n" + message;
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| 322 | if (failOnError)
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| 323 | throw new AssertException(msg, level);
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| 324 | else
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| 325 | log(msg, Project.MSG_WARN);
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| 326 | }
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| 327 | }
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| 328 | }
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| 329 | }
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| 330 | else {
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| 331 | // have nested condition
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| 332 | if (!((BooleanConditionTask) condition_task).eval()) {
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| 333 | if (message == null)
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| 334 | message = "Assertion failed.";
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| 335 | if (failOnError)
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| 336 | throw new AssertException(message, level);
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| 337 | else
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| 338 | log(message, Project.MSG_WARN);
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| 339 | }
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| 340 | }
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| 341 |
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| 342 | // execute all nested tasks
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| 343 | boolean do_execute = true;
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| 344 | if (execute == null) {
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| 345 | execute = getProject().getProperty("assert.execute");
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| 346 | if (execute != null)
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| 347 | do_execute = getProject().toBoolean(execute);
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| 348 | }
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| 349 | else {
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| 350 | do_execute = getProject().toBoolean(execute);
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| 351 | }
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| 352 | if (do_execute) {
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| 353 | executeNestedTasks();
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| 354 | }
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| 355 | }
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| 356 |
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| 357 | /** Execute all nested tasks. */
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| 358 | private void executeNestedTasks() {
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| 359 | for (Enumeration e = tasks.elements(); e.hasMoreElements(); ) {
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| 360 | Task task = (Task) e.nextElement();
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| 361 | task.perform();
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| 362 | }
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| 363 | }
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| 364 |
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| 365 | // testing
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| 366 | /**
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| 367 | * Description of the Method
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| 368 | *
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| 369 | * @return Description of the Returned Value
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| 370 | */
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| 371 | public static int runTests() {
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| 372 | // set up a project
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| 373 | org.apache.tools.ant.Project p = new org.apache.tools.ant.Project();
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| 374 | Assert ass = new Assert();
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| 375 | ass.setProject(p);
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| 376 |
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| 377 | // set up a property
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| 378 | String test_property = "test_property";
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| 379 | String test_value = "test_value";
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| 380 |
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| 381 | // enable asserts so the tests can run
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| 382 | p.setProperty("ant.enable.asserts", "true");
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| 383 |
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| 384 | // count the number of tests ran
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| 385 | int num_tests = 0;
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| 386 |
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| 387 | // run some tests --
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| 388 | // 1. check that task fails if name is missing -- name is required
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| 389 | try {
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| 390 | ass.execute();
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| 391 | throw new RuntimeException("test 1 failed.");
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| 392 | }
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| 393 | catch (Exception e) {
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| 394 | ++num_tests;
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| 395 | }
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| 396 |
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| 397 | // 2. check that task fails if name is given but is not in project --
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| 398 | // this is one of the main uses of Assert, to verify that a property exists.
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| 399 | // The default setting of 'exists' is true so doesn't need to be set
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| 400 | // explicitly.
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| 401 | try {
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| 402 | ass.setName(test_property);
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| 403 | ass.execute();
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| 404 | throw new RuntimeException("test 2 test failed.");
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| 405 | }
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| 406 | catch (Exception e) {
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| 407 | ++num_tests;
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| 408 | }
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| 409 |
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| 410 | // 3. test that task passes if name is given and is in project -- again
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| 411 | // this is one of the main uses of Assert, to verify that a property exists.
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| 412 | // The default setting of 'exists' is true so doesn't need to be set
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| 413 | // explicitly.
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| 414 | try {
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| 415 | p.setProperty(test_property, test_value);
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| 416 | ass.setName(test_property);
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| 417 | ass.execute();
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| 418 | ++num_tests;
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| 419 | }
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| 420 | catch (Exception e) {
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| 421 | throw new RuntimeException("test 3 test failed:\n" + e.getMessage());
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| 422 | }
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| 423 |
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| 424 | // 4. test that task passes if name is given, the property doesn't exist in
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| 425 | // the project, and exists is false. This is another main use case --
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| 426 | // checking that a property is not set.
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| 427 | try {
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| 428 | ass.setExists("false");
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| 429 | ass.execute();
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| 430 | throw new RuntimeException("test 4 failed");
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| 431 | }
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| 432 | catch (Exception e) {
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| 433 | ++num_tests;
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| 434 | }
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| 435 |
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| 436 | // 5. test that task passes if property is set with the correct value --
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| 437 | // this is another main use case -- checking that a property exists with the
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| 438 | // right value.
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| 439 | try {
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| 440 | ass.setExists("true"); // true is default value
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| 441 | ass.setValue(test_value);
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| 442 | ass.execute();
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| 443 | ++num_tests;
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| 444 | }
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| 445 | catch (Exception e) {
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| 446 | throw new RuntimeException("test 5 failed\n" + e.getMessage());
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| 447 | }
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| 448 |
|
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| 449 | // 6. test that task failed if property is incorrect -- this is the inverse
|
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| 450 | // test of #5.
|
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| 451 | try {
|
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| 452 | ass.setValue("blah");
|
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| 453 | ass.execute();
|
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| 454 | throw new RuntimeException("test 6 failed");
|
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| 455 | }
|
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| 456 | catch (Exception e) {
|
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| 457 | ++num_tests;
|
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| 458 | }
|
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| 459 |
|
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| 460 | // 7, 8, 9. test that task passes if property is boolean -- make sure that
|
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| 461 | // the property can be set to 'true', 'on', or 'yes' and will evaluate
|
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| 462 | // correctly regardless.
|
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| 463 | try {
|
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| 464 | ass.setExists("true"); // true is default value
|
---|
| 465 |
|
---|
| 466 | // set project propert to "true"
|
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| 467 | p.setProperty("boolean prop", "true");
|
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| 468 | ass.setName("boolean prop");
|
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| 469 |
|
---|
| 470 | // test "true", "on", and "yes" all work. Ant doesn't care about case
|
---|
| 471 | // on these values
|
---|
| 472 | ass.setValue("tRue");
|
---|
| 473 | ass.execute();
|
---|
| 474 | ++num_tests;
|
---|
| 475 | ass.setValue("on");
|
---|
| 476 | ass.execute();
|
---|
| 477 | ++num_tests;
|
---|
| 478 | ass.setValue("Yes");
|
---|
| 479 | ass.execute();
|
---|
| 480 | ++num_tests;
|
---|
| 481 | }
|
---|
| 482 | catch (Exception e) {
|
---|
| 483 | throw new RuntimeException("test 7 failed\n" + e.getMessage());
|
---|
| 484 | }
|
---|
| 485 |
|
---|
| 486 | // 10. test that failonerror works when false.
|
---|
| 487 | try {
|
---|
| 488 | ass.setValue("blah");
|
---|
| 489 | ass.setFailonerror(false);
|
---|
| 490 | ass.execute();
|
---|
| 491 | ++num_tests;
|
---|
| 492 | }
|
---|
| 493 | catch (Exception e) {
|
---|
| 494 | throw new RuntimeException("test 10 failed");
|
---|
| 495 | }
|
---|
| 496 |
|
---|
| 497 | // 11. test that failonerror works when true.
|
---|
| 498 | try {
|
---|
| 499 | ass.setValue("blah");
|
---|
| 500 | ass.setFailonerror(true);
|
---|
| 501 | ass.execute();
|
---|
| 502 | throw new RuntimeException("test 11 failed");
|
---|
| 503 | }
|
---|
| 504 | catch (Exception e) {
|
---|
| 505 | ++num_tests;
|
---|
| 506 | }
|
---|
| 507 |
|
---|
| 508 | return num_tests;
|
---|
| 509 | }
|
---|
| 510 |
|
---|
| 511 | /**
|
---|
| 512 | * The main program for the Assert class
|
---|
| 513 | *
|
---|
| 514 | * @param args The command line arguments
|
---|
| 515 | */
|
---|
| 516 | public static void main(String[] args) {
|
---|
| 517 | int num_tests = Assert.runTests();
|
---|
| 518 | System.out.println("Ran " + num_tests + " tests, all passed.");
|
---|
| 519 | }
|
---|
| 520 | }
|
---|
| 521 |
|
---|