taverna-scufl2-cwl/src/test/java/org/apache/taverna/scufl2/cwl/TestWorkflowNesting.java

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 * 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
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 * Unless required by applicable law or agreed to in writing,
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package org.apache.taverna.scufl2.cwl;


import java.io.File;
import java.io.IOException;
import java.util.Set;
import java.util.HashSet;
import java.util.Map;
import java.util.HashMap;

import org.junit.Test;
import static org.junit.Assert.assertEquals;

import org.yaml.snakeyaml.Yaml;

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.dataformat.yaml.YAMLMapper;

import com.fasterxml.jackson.core.JsonProcessingException;

import org.apache.taverna.scufl2.api.core.Workflow;

import org.apache.taverna.scufl2.api.port.InputWorkflowPort;
import org.apache.taverna.scufl2.api.port.OutputWorkflowPort;

import org.apache.taverna.scufl2.api.io.WorkflowBundleIO;
import org.apache.taverna.scufl2.api.io.WriterException;

import org.apache.taverna.scufl2.api.container.WorkflowBundle;

public class TestWorkflowNesting {
    private static final String HELLO_WORLD_CWL = "/hello_world.cwl";
    private static final String WORKFLOW_WITH_COMMAND = "/workflow_with_command.cwl";
    private static final String WORKFLOW_WITH_WORKFLOW = "/workflow_with_workflow.cwl";

    private static JsonNode cwlFile;

    public JsonNode loadYamlFile(String filename) {

        Yaml reader = new Yaml();
        ObjectMapper mapper = new ObjectMapper();
        JsonNode node = mapper.valueToTree(reader.load(TestWorkflowProcess.class.getResourceAsStream(filename)));

        return node;
    }

    @Test
    public void testWorkflowWithProcessor() {
        JsonNode cwlFile = loadYamlFile(WORKFLOW_WITH_COMMAND);

        WorkflowProcess workflow = (WorkflowProcess) ProcessFactory.createProcess(cwlFile);
        Set<Process> processes = workflow.getProcesses();
        assertEquals(processes.size(), 1);
        Process child = processes.iterator().next();
        assert(child instanceof CommandLineTool);
        assertEquals(((CommandLineTool) child).getBaseCommand(), "echo");
    }

    @Test
    public void testWorkflowWithWorkflow() {
        JsonNode cwlFile = loadYamlFile(WORKFLOW_WITH_WORKFLOW);

        WorkflowProcess workflow = (WorkflowProcess) ProcessFactory.createProcess(cwlFile);
        Set<Process> processes = workflow.getProcesses();
        assert(processes.size() == 1);
        Process child = processes.iterator().next();
        assert(child instanceof WorkflowProcess);
        WorkflowProcess childWorkflow = (WorkflowProcess) child;
        assertEquals(childWorkflow.getProcesses().size(), 1);

        Process reference = childWorkflow.getProcesses().iterator().next();

        assert(reference instanceof Reference);
        assertEquals(((Reference) reference).toString(), "example.cwl");
    }
}