001/*
002 * ModeShape (http://www.modeshape.org)
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *       http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package org.modeshape.schematic.internal.schema;
017
018import static org.hamcrest.core.Is.is;
019import static org.junit.Assert.assertThat;
020import org.junit.Before;
021import org.junit.Test;
022import org.modeshape.schematic.internal.schema.DocumentTransformer.SystemPropertyAccessor;
023
024/**
025 * Test property variable syntax options
026 * <ul>
027 * <li>${variable}</li>
028 * <li>${variable [,variable,..] }</li>
029 * <li>${variable [:defaultvalue] }</li>
030 * </ul>
031 * 
032 * @author Van Halbert
033 */
034public class SystemPropertyFactoryTest {
035
036    private static final String TESTPROP = "test.prop";
037    private static final String TESTPROPVALUE = "test.prop.value";
038
039    private static final String TESTPROP2 = "test.prop2";
040    private static final String TESTPROPVALUE2 = "test.prop.value2";
041
042    /**
043     * @throws java.lang.Exception
044     */
045    @Before
046    public void setUp() throws Exception {
047        System.setProperty(TESTPROP, TESTPROPVALUE);
048        System.setProperty(TESTPROP2, TESTPROPVALUE2);
049    }
050
051    protected void assertSystemPropertySubstituted( String input,
052                                                    String expected ) {
053        assertThat(DocumentTransformer.getSubstitutedProperty(input, SystemPropertyAccessor.INSTANCE), is(expected));
054    }
055
056    @Test
057    public void shouldSubstituteSingleVariable() {
058
059        assertSystemPropertySubstituted("${" + TESTPROP + "}", TESTPROPVALUE);
060        assertSystemPropertySubstituted("find.the.property." + "${" + TESTPROP + "}", "find.the.property." + TESTPROPVALUE);
061        assertSystemPropertySubstituted("${" + TESTPROP + "}.find.the.property", TESTPROPVALUE + ".find.the.property");
062        assertSystemPropertySubstituted("find.the.property.${" + TESTPROP + "}.find.the.property", "find.the.property."
063                                                                                                   + TESTPROPVALUE
064                                                                                                   + ".find.the.property");
065        String pathEnvironmentValue = System.getenv("PATH");
066        if (pathEnvironmentValue != null) {
067            //test variable substitution for environment values
068            assertSystemPropertySubstituted("${PATH}", pathEnvironmentValue);
069        }
070    }
071
072    @Test
073    public void shouldSubstituteFirstFoundMultipleVariables() {
074
075        assertSystemPropertySubstituted("${any.prop," + TESTPROP + "}", TESTPROPVALUE);
076        assertSystemPropertySubstituted("find.the.property.${any.prop," + TESTPROP + "}", "find.the.property." + TESTPROPVALUE);
077        assertSystemPropertySubstituted("${any.prop," + TESTPROP + "}.find.the.property", TESTPROPVALUE + ".find.the.property");
078        assertSystemPropertySubstituted("find.the.property.${any.prop," + TESTPROP + "}.find.the.property",
079                                        "find.the.property." + TESTPROPVALUE + ".find.the.property");
080
081        // this test verifies that the first property is used even though there are 2 properties that can be found
082        assertSystemPropertySubstituted("${any.prop," + TESTPROP + "," + TESTPROP2 + "}.find.the.property",
083                                        TESTPROPVALUE + ".find.the.property");
084
085    }
086
087    @Test
088    public void shouldSubstituteMultipleVariablesWithDefault() {
089
090        assertSystemPropertySubstituted("${any.prop1,any.prop2:" + TESTPROPVALUE + "}", TESTPROPVALUE);
091        assertSystemPropertySubstituted("find.the.property.${any.prop1:" + TESTPROPVALUE + "}", "find.the.property."
092                                                                                                + TESTPROPVALUE);
093        assertSystemPropertySubstituted("${any.prop1,any.prop2:" + TESTPROPVALUE + "}.find.the.property", TESTPROPVALUE
094                                                                                                          + ".find.the.property");
095        assertSystemPropertySubstituted("find.the.property.${any.prop:" + TESTPROPVALUE + "}.find.the.property",
096                                        "find.the.property." + TESTPROPVALUE + ".find.the.property");
097    }
098
099    @Test
100    public void shouldSubstituteMultipleVariableGroups() {
101
102        assertSystemPropertySubstituted("${" + TESTPROP + "}.double.${" + TESTPROP + "}", TESTPROPVALUE + ".double."
103                                                                                          + TESTPROPVALUE);
104        assertSystemPropertySubstituted("${any.prop," + TESTPROP + "}.double.${any.prop," + TESTPROP + "}", TESTPROPVALUE
105                                                                                                            + ".double."
106                                                                                                            + TESTPROPVALUE);
107        assertSystemPropertySubstituted("${any.prop:" + TESTPROPVALUE + "}.double.${any.prop:" + TESTPROPVALUE + "}",
108                                        TESTPROPVALUE + ".double." + TESTPROPVALUE);
109
110    }
111
112}