| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package freemarker.core; |
| |
| import static org.hamcrest.Matchers.*; |
| import static org.junit.Assert.*; |
| |
| import java.io.IOException; |
| |
| import org.junit.Test; |
| |
| import com.google.common.collect.ImmutableSet; |
| |
| import freemarker.template.Configuration; |
| import freemarker.template.DefaultIterableAdapter; |
| import freemarker.template.DefaultNonListCollectionAdapter; |
| import freemarker.template.TemplateCollectionModelEx; |
| import freemarker.template.TemplateException; |
| import freemarker.template.TemplateModel; |
| import freemarker.template.TemplateSequenceModel; |
| import freemarker.template.utility.ObjectWrapperWithAPISupport; |
| import freemarker.test.TemplateTest; |
| |
| public class SequenceBuiltInTest extends TemplateTest { |
| |
| @Test |
| public void testWithCollection() throws TemplateException, IOException { |
| ObjectWrapperWithAPISupport ow = (ObjectWrapperWithAPISupport) getConfiguration().getObjectWrapper(); |
| |
| TemplateModel xs = DefaultIterableAdapter.adapt(ImmutableSet.of("a", "b"), ow); |
| assertThat(xs, not(instanceOf(TemplateCollectionModelEx.class))); |
| assertThat(xs, not(instanceOf(TemplateSequenceModel.class))); |
| addToDataModel("xs", xs); |
| |
| try { |
| assertOutput("${xs[1]}", "b"); |
| fail(); |
| } catch (TemplateException e) { |
| assertThat(e.getMessage(), containsString("?sequence")); // Contains tip to use ?sequence |
| } |
| assertOutput("${xs?sequence[1]}", "b"); |
| |
| try { |
| assertOutput("${xs?size}", "2"); |
| fail(); |
| } catch (TemplateException e) { |
| assertThat(e.getMessage(), containsString("?sequence")); // Contains tip to use ?sequence |
| } |
| assertOutput("${xs?sequence?size}", "2"); |
| } |
| |
| @Test |
| public void testWithCollectionEx() throws TemplateException, IOException { |
| ObjectWrapperWithAPISupport ow = (ObjectWrapperWithAPISupport) getConfiguration().getObjectWrapper(); |
| |
| TemplateModel xs = DefaultNonListCollectionAdapter.adapt(ImmutableSet.of("a", "b"), ow); |
| assertThat(xs, not(instanceOf(TemplateSequenceModel.class))); |
| assertThat(xs, instanceOf(TemplateCollectionModelEx.class)); |
| addToDataModel("xs", xs); |
| |
| try { |
| assertOutput("${xs[1]}", "b"); |
| fail(); |
| } catch (TemplateException e) { |
| assertThat(e.getMessage(), containsString("?sequence")); // Contains tip to use ?sequence |
| } |
| assertOutput("${xs?sequence[1]}", "b"); |
| |
| assertOutput("${xs?size}", "2"); // No need for ?sequence |
| } |
| |
| @Test |
| public void testWithSequence() throws TemplateException, IOException { |
| assertOutput("${[11, 12]?sequence[1]}", "12"); |
| |
| getConfiguration().setIncompatibleImprovements(Configuration.VERSION_2_3_23); |
| // As it returns the sequence as is, it works with an infinite sequence: |
| assertOutput("${(11..)?sequence[1]}", "12"); |
| } |
| |
| } |