| /* |
| * 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.template; |
| |
| import static org.hamcrest.Matchers.*; |
| import static org.junit.Assert.*; |
| |
| import java.io.IOException; |
| import java.io.StringWriter; |
| import java.util.List; |
| |
| import org.junit.Test; |
| |
| import freemarker.cache.StringTemplateLoader; |
| import freemarker.core.Environment; |
| import freemarker.core.Environment.Namespace; |
| import freemarker.core.InvalidReferenceException; |
| import freemarker.core.LibraryLoad; |
| import freemarker.template.utility.NullWriter; |
| |
| /** |
| * These are things that users shouldn't do, but we shouldn't break backward compatibility without knowing about it. |
| */ |
| public class MistakenlyPublicImportAPIsTest { |
| |
| @Test |
| public void testImportCopying() throws IOException, TemplateException { |
| Configuration cfg = new Configuration(Configuration.VERSION_2_3_22); |
| StringTemplateLoader tl = new StringTemplateLoader(); |
| tl.putTemplate("imp1", "<#macro m>1</#macro>"); |
| tl.putTemplate("imp2", "<#assign x = 2><#macro m>${x}</#macro>"); |
| cfg.setTemplateLoader(tl); |
| |
| Template t1 = new Template(null, "<#import 'imp1' as i1><#import 'imp2' as i2>", cfg); |
| List<LibraryLoad> imports = t1.getImports(); |
| assertEquals(2, imports.size()); |
| |
| { |
| Template t2 = new Template(null, "<@i1.m/><@i2.m/>", cfg); |
| for (LibraryLoad libLoad : imports) { |
| t2.addImport(libLoad); |
| } |
| |
| try { |
| t2.process(null, NullWriter.INSTANCE); |
| fail(); |
| } catch (InvalidReferenceException e) { |
| // Apparenly, it has never worked like this... |
| assertEquals("i1", e.getBlamedExpressionString()); |
| } |
| } |
| |
| // It works this way, though it has nothing to do with the problematic API-s: |
| Environment env = t1.createProcessingEnvironment(null, NullWriter.INSTANCE); |
| env.process(); |
| TemplateModel i1 = env.getVariable("i1"); |
| assertThat(i1, instanceOf(Namespace.class)); |
| TemplateModel i2 = env.getVariable("i2"); |
| assertThat(i2, instanceOf(Namespace.class)); |
| |
| { |
| Template t2 = new Template(null, "<@i1.m/>", cfg); |
| |
| StringWriter sw = new StringWriter(); |
| env = t2.createProcessingEnvironment(null, sw); |
| env.setVariable("i1", i1); |
| |
| env.process(); |
| assertEquals("1", sw.toString()); |
| } |
| |
| { |
| Template t2 = new Template(null, "<@i2.m/>", cfg); |
| |
| StringWriter sw = new StringWriter(); |
| env = t2.createProcessingEnvironment(null, sw); |
| env.setVariable("i2", i2); |
| |
| try { |
| env.process(); |
| assertEquals("2", sw.toString()); |
| } catch (NullPointerException e) { |
| // Expected on 2.3.x, because it won't find the namespace for the macro |
| // [2.4] Fix this "bug" |
| } |
| } |
| } |
| |
| } |