content: /*
   * 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 org.apache.camel.language.wasm;
  
  import org.apache.camel.CamelContext;
  import org.apache.camel.Exchange;
  import org.apache.camel.FluentProducerTemplate;
  import org.apache.camel.builder.RouteBuilder;
  import org.apache.camel.impl.DefaultCamelContext;
  import org.apache.camel.util.StringHelper;
  import org.assertj.core.api.InstanceOfAssertFactories;
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.params.ParameterizedTest;
  import org.junit.jupiter.params.provider.ValueSource;
  
  import static org.assertj.core.api.Assertions.as;
  import static org.assertj.core.api.Assertions.assertThat;
  
  public class WasmLanguageTest {
  
      @ParameterizedTest
      @ValueSource(strings = {
              "transform@functions.wasm",
              "transform@file:{{wasm.resources.path}}/functions.wasm"
      })
      public void testLanguage(String expression) throws Exception {
          try (CamelContext cc = new DefaultCamelContext()) {
  
              FluentProducerTemplate pt = cc.createFluentProducerTemplate();
  
              cc.addRoutes(new RouteBuilder() {
                  @Override
                  public void configure() throws Exception {
                      from("direct:in")
                              .transform()
                              .wasm(
                                      StringHelper.before(expression, "@"),
                                      StringHelper.after(expression, "@"));
                  }
              });
              cc.start();
  
              Exchange out = pt.to("direct:in")
                      .withHeader("foo", "bar")
                      .withBody("hello")
                      .request(Exchange.class);
  
              assertThat(out.getMessage().getHeaders())
                      .containsEntry("foo", "bar");
              assertThat(out.getMessage().getBody(String.class))
                      .isEqualTo("HELLO");
  
          }
      }
  
      @Test
      public void testLanguageFailure() throws Exception {
          try (CamelContext cc = new DefaultCamelContext()) {
  
              FluentProducerTemplate pt = cc.createFluentProducerTemplate();
  
              cc.addRoutes(new RouteBuilder() {
                  @Override
                  public void configure() throws Exception {
                      from("direct:in")
                              .transform()
                              .wasm("transform_err", "functions.wasm");
                  }
              });
              cc.start();
  
              Exchange out = pt.to("direct:in")
                      .withHeader("foo", "bar")
                      .withBody("hello")
                      .request(Exchange.class);
  
              assertThat(out.getException())
                      .isNotNull()
                      .hasCauseInstanceOf(RuntimeException.class)
                      .extracting(Throwable::getCause, as(InstanceOfAssertFactories.THROWABLE))
                      .hasMessage("this is an error");
          }
      }
  }
  