Add unit test for Apex command line tools

THere was no unit test for the command line tools. This
review adds unit test and also fixes a few small bugs that
showed up when uit test was run.

Issue-ID: POLICY-1034
Change-Id: Ic19aacdb168fb5a6faa0cd83ed22ccfcedaa51f5
Signed-off-by: liamfallon <liam.fallon@ericsson.com>

4 files changed, 622 insertions, 0 deletions

diff --git a/tools/model-generator/src/test/java/org/onap/policy/apex/tools/model/generator/KeyInfoGetterTest.java b/tools/model-generator/src/test/java/org/onap/policy/apex/tools/model/generator/KeyInfoGetterTest.java
new file mode 100644
index 000000000..e6ecefd12
--- /dev/null
+++ b/tools/model-generator/src/test/java/org/onap/policy/apex/tools/model/generator/KeyInfoGetterTest.java
@@ -0,0 +1,72 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed 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.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.apex.tools.model.generator;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNull;
+
+import org.junit.Test;
+import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey;
+import org.onap.policy.apex.model.policymodel.concepts.AxPolicyModel;
+import org.onap.policy.apex.model.policymodel.concepts.AxState;
+import org.onap.policy.apex.testsuites.integration.common.model.SampleDomainModelFactory;
+
+/**
+ * Test the Key Info Getter.
+ */
+public class KeyInfoGetterTest {
+
+    @Test
+    public void testKeyInfoGetter() {
+        AxPolicyModel sampleModel = new SampleDomainModelFactory().getSamplePolicyModel("JAVASCRIPT");
+
+        KeyInfoGetter kiGetter = new KeyInfoGetter(sampleModel);
+
+        assertNull(kiGetter.getName(null));
+        assertEquals("SamplePolicyModelJAVASCRIPT", kiGetter.getName(sampleModel.getKey()));
+
+        assertNull(kiGetter.getUuid(null));
+        assertNull(kiGetter.getUuid(new AxArtifactKey()));
+        assertEquals(36, kiGetter.getUuid(sampleModel.getKey()).length());
+
+        assertNull(kiGetter.getDesc(null));
+        assertNull(kiGetter.getDesc(new AxArtifactKey()));
+        assertEquals("Generated description for concept referred to by key " + "\"SamplePolicyModelJAVASCRIPT:0.0.1\"",
+                        kiGetter.getDesc(sampleModel.getKey()));
+        
+        assertNull(kiGetter.getVersion(null));
+        assertEquals("0.0.1", kiGetter.getVersion(sampleModel.getKey()));
+        
+        AxState matchState = sampleModel.getPolicies().get("Policy0").getStateMap().get("Match");
+        
+        assertNull(kiGetter.getLName(null));
+        assertEquals("Match", kiGetter.getLName(matchState.getKey()));
+        
+        assertNull(kiGetter.getPName(null));
+        assertEquals("Policy0", kiGetter.getPName(matchState.getKey()));
+        
+        assertNull(kiGetter.getPVersion(null));
+        assertEquals("0.0.1", kiGetter.getPVersion(matchState.getKey()));
+        
+        assertNull(kiGetter.getPlName(null));
+        assertEquals("NULL", kiGetter.getPlName(matchState.getKey()));
+    }
+}
diff --git a/tools/model-generator/src/test/java/org/onap/policy/apex/tools/model/generator/SchemaUtilsTest.java b/tools/model-generator/src/test/java/org/onap/policy/apex/tools/model/generator/SchemaUtilsTest.java
new file mode 100644
index 000000000..164f187cc
--- /dev/null
+++ b/tools/model-generator/src/test/java/org/onap/policy/apex/tools/model/generator/SchemaUtilsTest.java
@@ -0,0 +1,192 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed 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.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.apex.tools.model.generator;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.fail;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.avro.Schema;
+import org.apache.avro.Schema.Field;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.onap.policy.apex.context.impl.schema.SchemaHelperFactory;
+import org.onap.policy.apex.context.impl.schema.java.JavaSchemaHelperParameters;
+import org.onap.policy.apex.context.parameters.ContextParameterConstants;
+import org.onap.policy.apex.context.parameters.SchemaParameters;
+import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey;
+import org.onap.policy.apex.model.basicmodel.concepts.AxModel;
+import org.onap.policy.apex.model.basicmodel.concepts.AxReferenceKey;
+import org.onap.policy.apex.model.basicmodel.handling.ApexModelException;
+import org.onap.policy.apex.model.basicmodel.handling.ApexModelReader;
+import org.onap.policy.apex.model.basicmodel.service.ModelService;
+import org.onap.policy.apex.model.contextmodel.concepts.AxContextSchema;
+import org.onap.policy.apex.model.contextmodel.concepts.AxContextSchemas;
+import org.onap.policy.apex.model.eventmodel.concepts.AxEvent;
+import org.onap.policy.apex.model.eventmodel.concepts.AxInputField;
+import org.onap.policy.apex.model.policymodel.concepts.AxPolicyModel;
+import org.onap.policy.apex.model.utilities.TextFileUtils;
+import org.onap.policy.apex.plugins.context.schema.avro.AvroSchemaHelper;
+import org.onap.policy.apex.plugins.context.schema.avro.AvroSchemaHelperParameters;
+import org.onap.policy.apex.service.engine.event.ApexEventException;
+import org.onap.policy.common.parameters.ParameterService;
+
+/**
+ * Test the Key Info Getter.
+ */
+public class SchemaUtilsTest {
+    private static AxPolicyModel avroModel;
+
+    /**
+     * Read the models into strings.
+     * 
+     * @throws IOException on model reading errors
+     * @throws ApexModelException on model reading exceptions
+     */
+    @BeforeClass
+    public static void readSimpleModel() throws IOException, ApexModelException {
+        String avroModelString = TextFileUtils.getTextFileAsString("src/test/resources/models/AvroModel.json");
+
+        final ApexModelReader<AxPolicyModel> modelReader = new ApexModelReader<>(AxPolicyModel.class);
+        avroModel = modelReader.read(new ByteArrayInputStream(avroModelString.getBytes()));
+    }
+
+    @Test
+    public void testSchemaUtilsErrors() throws ApexEventException {
+        AxEvent event = avroModel.getEvents().get("CustomerContextEventIn");
+        AxContextSchema avroCtxtSchema = avroModel.getSchemas().get("ctxtTopologyNodesDecl");
+
+        AxArtifactKey topoNodesKey = new AxArtifactKey("albumTopoNodes", "0.0.1");
+        try {
+            SchemaUtils.getEventSchema(event);
+            fail("test should throw an exception");
+        } catch (Exception apEx) {
+            assertEquals("Model for org.onap.policy.apex.model.contextmodel.concepts.AxContextSchemas"
+                            + " not found in model service", apEx.getMessage());
+        }
+
+        try {
+            Map<String, Schema> preexistingParamSchemas = new LinkedHashMap<>();
+            SchemaUtils.getEventParameterSchema(event.getParameterMap().get("links"), preexistingParamSchemas);
+            fail("test should throw an exception");
+        } catch (Exception apEx) {
+            assertEquals("Model for org.onap.policy.apex.model.contextmodel.concepts.AxContextSchemas"
+                            + " not found in model service", apEx.getMessage());
+        }
+
+        List<Field> skeletonFields = SchemaUtils.getSkeletonEventSchemaFields();
+        assertEquals(5, skeletonFields.size());
+
+        try {
+            AvroSchemaHelper schemaHelper = (AvroSchemaHelper) new SchemaHelperFactory()
+                            .createSchemaHelper(topoNodesKey, avroCtxtSchema.getKey());
+
+            Map<String, Schema> schemaMap = new LinkedHashMap<>();
+            SchemaUtils.processSubSchemas(schemaHelper.getAvroSchema(), schemaMap);
+            fail("test should throw an exception");
+        } catch (Exception apEx) {
+            assertEquals("Model for org.onap.policy.apex.model.contextmodel.concepts.AxContextSchemas"
+                            + " not found in model service", apEx.getMessage());
+        }
+    }
+
+    @Test
+    public void testSchemaUtils() throws ApexEventException {
+        ParameterService.clear();
+        final SchemaParameters schemaParameters = new SchemaParameters();
+        schemaParameters.setName(ContextParameterConstants.SCHEMA_GROUP_NAME);
+        ParameterService.register(schemaParameters);
+
+        ModelService.registerModel(AxModel.class, avroModel);
+        ModelService.registerModel(AxContextSchemas.class, avroModel.getSchemas());
+
+        AxEvent event = avroModel.getEvents().get("CustomerContextEventIn");
+        AxContextSchema avroCtxtSchema = avroModel.getSchemas().get("ctxtTopologyNodesDecl");
+        AxArtifactKey topoNodesKey = new AxArtifactKey("albumTopoNodes", "0.0.1");
+
+        Schema eventSchema = SchemaUtils.getEventSchema(event);
+        assertEquals("{\"type\":\"record\",\"name\":\"CustomerContextEventIn\"",
+                        eventSchema.toString().substring(0, 48));
+
+        Map<String, Schema> preexistingParamSchemas = new LinkedHashMap<>();
+        Schema epSchema = SchemaUtils.getEventParameterSchema(event.getParameterMap().get("links"),
+                        preexistingParamSchemas);
+        assertEquals("\"string\"", epSchema.toString());
+
+        List<Field> skeletonFields = SchemaUtils.getSkeletonEventSchemaFields();
+        assertEquals(5, skeletonFields.size());
+
+        try {
+            AvroSchemaHelper schemaHelper = (AvroSchemaHelper) new SchemaHelperFactory()
+                            .createSchemaHelper(topoNodesKey, avroCtxtSchema.getKey());
+
+            Map<String, Schema> schemaMap = new LinkedHashMap<>();
+            SchemaUtils.processSubSchemas(schemaHelper.getAvroSchema(), schemaMap);
+            fail("test should throw an exception");
+        } catch (Exception apEx) {
+            assertEquals("context schema helper parameters not found for context schema  \"Avro\"", apEx.getMessage());
+        }
+
+        schemaParameters.getSchemaHelperParameterMap().put("Avro", new AvroSchemaHelperParameters());
+
+        AvroSchemaHelper schemaHelper = (AvroSchemaHelper) new SchemaHelperFactory().createSchemaHelper(topoNodesKey,
+                        avroCtxtSchema.getKey());
+
+        Map<String, Schema> schemaMap = new LinkedHashMap<>();
+        try {
+            SchemaUtils.processSubSchemas(schemaHelper.getAvroSchema(), schemaMap);
+        } catch (Exception exc) {
+            fail("test should not throw an exception");
+        }
+
+        eventSchema = SchemaUtils.getEventSchema(event);
+        assertEquals("{\"type\":\"record\",\"name\":\"CustomerContextEventIn\"",
+                        eventSchema.toString().substring(0, 48));
+
+        epSchema = SchemaUtils.getEventParameterSchema(event.getParameterMap().get("links"), preexistingParamSchemas);
+        assertEquals("\"string\"", epSchema.toString());
+
+        AxInputField inField = new AxInputField(new AxReferenceKey("FieldParent", "0.0.1", "Field"),
+                        avroCtxtSchema.getKey(), false);
+
+        Schema ep2Schema = SchemaUtils.getEventParameterSchema(inField, preexistingParamSchemas);
+        assertEquals("{\"type\":\"record\",\"name\":\"TopologyNodes\"", ep2Schema.toString().substring(0, 39));
+
+        skeletonFields = SchemaUtils.getSkeletonEventSchemaFields();
+        assertEquals(5, skeletonFields.size());
+
+        schemaParameters.getSchemaHelperParameterMap().put("Avro", new JavaSchemaHelperParameters());
+        try {
+            ep2Schema = SchemaUtils.getEventParameterSchema(inField, preexistingParamSchemas);
+            fail("test should throw an exception");
+        } catch (Exception apEx) {
+            assertEquals("FieldParent:0.0.1:NULL:Field: class/type", apEx.getMessage().substring(0, 40));
+        }
+
+        ParameterService.deregister(ContextParameterConstants.SCHEMA_GROUP_NAME);
+        ModelService.clear();
+    }
+}
diff --git a/tools/model-generator/src/test/java/org/onap/policy/apex/tools/model/generator/model2cli/Model2CliTest.java b/tools/model-generator/src/test/java/org/onap/policy/apex/tools/model/generator/model2cli/Model2CliTest.java
new file mode 100644
index 000000000..170004e7c
--- /dev/null
+++ b/tools/model-generator/src/test/java/org/onap/policy/apex/tools/model/generator/model2cli/Model2CliTest.java
@@ -0,0 +1,176 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed 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.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.apex.tools.model.generator.model2cli;
+
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.IOException;
+import java.io.PrintStream;
+
+import org.junit.Test;
+
+/**
+ * Test the Model2Cli utility.
+ */
+public class Model2CliTest {
+    @Test
+    public void testModel2Cli() {
+        try {
+            final String[] cliArgs =
+                { "-h" };
+
+            Model2CliMain.main(cliArgs);
+        } catch (Exception exc) {
+            fail("test should not throw an exception");
+        }
+    }
+
+    @Test
+    public void testModel2CliNoOptions() {
+        final String[] cliArgs = new String[]
+            {};
+
+        final String outputString = runModel2Cli(cliArgs);
+
+        assertTrue(outputString
+                        .contains("gen-model2cli: no '-m' model file given, cannot proceed (try -h for help)\n"));
+    }
+
+    @Test
+    public void testModel2CliBadOptions() {
+        final String[] cliArgs =
+            { "-zabbu" };
+
+        final String outputString = runModel2Cli(cliArgs);
+
+        assertTrue(outputString.contains("usage: gen-model2cli"));
+    }
+
+    @Test
+    public void testModel2CliHelp() {
+        final String[] cliArgs =
+            { "-h" };
+
+        final String outputString = runModel2Cli(cliArgs);
+
+        assertTrue(outputString.contains("usage: gen-model2cli"));
+    }
+
+    @Test
+    public void testModel2CliVersion() {
+        final String[] cliArgs =
+            { "-v" };
+
+        final String outputString = runModel2Cli(cliArgs);
+
+        assertTrue(outputString.contains("gen-model2cli"));
+    }
+
+    @Test
+    public void testModel2CliOverwrite() throws IOException {
+        File tempFile = File.createTempFile("AvroModel", ".apex");
+        tempFile.deleteOnExit();
+
+        final String[] cliArgs =
+            { "-m", "src/test/resources/models/AvroModel.json", "-o", tempFile.getCanonicalPath() };
+
+        final String outputString = runModel2Cli(cliArgs);
+
+        assertTrue(outputString.contains("gen-model2cli: error with '-o' option: \"file already exists\""));
+    }
+
+    @Test
+    public void testModel2CliAvro() throws IOException {
+        testModel2CliModel("AvroModel");
+    }
+
+    @Test
+    public void testModel2CliAadm() throws IOException {
+        testModel2CliModel("AADMPolicyModel");
+    }
+
+    @Test
+    public void testModel2CliAnomaly() {
+        testModel2CliModel("AnomalyDetectionPolicyModel");
+    }
+
+    @Test
+    public void testModel2CliAutoLearn() {
+        testModel2CliModel("AutoLearnPolicyModel");
+    }
+
+    @Test
+    public void testModel2CliJms() {
+        testModel2CliModel("JMSSamplePolicyModel");
+    }
+
+    @Test
+    public void testModel2CliMfp() {
+        testModel2CliModel("MyFirstPolicyModel");
+    }
+
+    @Test
+    public void testModel2CliSample() {
+        testModel2CliModel("SamplePolicyModelJAVASCRIPT");
+    }
+
+    /**
+     * Run the application.
+     * 
+     * @param cliArgs the command arguments
+     * @return a string containing the command output
+     */
+    private String runModel2Cli(final String[] cliArgs) {
+        final ByteArrayOutputStream baosOut = new ByteArrayOutputStream();
+        final ByteArrayOutputStream baosErr = new ByteArrayOutputStream();
+
+        new Model2CliMain(cliArgs, new PrintStream(baosOut, true), new PrintStream(baosErr, true));
+
+        String outString = baosOut.toString();
+        String errString = baosErr.toString();
+
+        return "*** StdOut ***\n" + outString + "\n*** StdErr ***\n" + errString;
+    }
+
+    /**
+     * Test CLI generation.
+     * 
+     * @param modelName the name of the model file
+     */
+    private void testModel2CliModel(String modelName) {
+        try {
+            File tempFile = File.createTempFile(modelName, ".apex");
+            tempFile.deleteOnExit();
+
+            final String[] cliArgs =
+                { "-m", "src/test/resources/models/" + modelName + ".json", "-o", tempFile.getCanonicalPath(), "-ow" };
+            runModel2Cli(cliArgs);
+
+            assertTrue(tempFile.isFile());
+            assertTrue(tempFile.length() > 0);
+        } catch (Exception e) {
+            fail("test should not throw an exception");
+        }
+    }
+}
diff --git a/tools/model-generator/src/test/java/org/onap/policy/apex/tools/model/generator/model2event/Model2EventTest.java b/tools/model-generator/src/test/java/org/onap/policy/apex/tools/model/generator/model2event/Model2EventTest.java
new file mode 100644
index 000000000..1804aca30
--- /dev/null
+++ b/tools/model-generator/src/test/java/org/onap/policy/apex/tools/model/generator/model2event/Model2EventTest.java
@@ -0,0 +1,182 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed 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.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.apex.tools.model.generator.model2event;
+
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.IOException;
+import java.io.PrintStream;
+
+import org.junit.Test;
+import org.onap.policy.apex.model.basicmodel.concepts.ApexRuntimeException;
+
+/**
+ * Test the Model2Event utility.
+ */
+public class Model2EventTest {
+    @Test
+    public void testModel2Event() {
+        try {
+            final String[] EventArgs =
+                { "-h" };
+
+            Model2EventMain.main(EventArgs);
+        } catch (Exception exc) {
+            fail("test should not throw an exception");
+        }
+    }
+
+    @Test
+    public void testModel2EventNoOptions() {
+        final String[] EventArgs = new String[]
+            {};
+
+        final String outputString = runModel2Event(EventArgs);
+
+        assertTrue(outputString.contains("gen-model2event: no model file given, cannot proceed (try -h for help)"));
+    }
+
+    @Test
+    public void testModel2EventBadOptions() {
+        final String[] EventArgs =
+            { "-zabbu" };
+
+        final String outputString = runModel2Event(EventArgs);
+
+        assertTrue(outputString.contains("usage: gen-model2event"));
+    }
+
+    @Test
+    public void testModel2EventHelp() {
+        final String[] EventArgs =
+            { "-h" };
+
+        final String outputString = runModel2Event(EventArgs);
+
+        assertTrue(outputString.contains("usage: gen-model2event"));
+    }
+
+    @Test
+    public void testModel2EventVersion() {
+        final String[] EventArgs =
+            { "-v" };
+
+        final String outputString = runModel2Event(EventArgs);
+
+        assertTrue(outputString.contains("gen-model2event"));
+    }
+
+    @Test
+    public void testModel2EventNoType() {
+        final String[] EventArgs =
+            { "-m", "src/test/resources/models/AvroModel.json" };
+
+        final String outputString = runModel2Event(EventArgs);
+
+        assertTrue(outputString.contains("gen-model2event: no event type given, cannot proceed (try -h for help)"));
+    }
+
+    @Test
+    public void testModel2EventBadType() {
+        final String[] EventArgs =
+            { "-m", "src/test/resources/models/AvroModel.json", "-t", "Zooby" };
+
+        final String outputString = runModel2Event(EventArgs);
+
+        assertTrue(outputString.contains("gen-model2event: unknown type <Zooby>, cannot proceed (try -h for help)"));
+    }
+
+    @Test
+    public void testModel2EventAadm() throws IOException {
+        testModel2EventModel("AADMPolicyModel");
+    }
+
+    @Test
+    public void testModel2EventAnomaly() {
+        testModel2EventModel("AnomalyDetectionPolicyModel");
+    }
+
+    @Test
+    public void testModel2EventAutoLearn() {
+        testModel2EventModel("AutoLearnPolicyModel");
+    }
+
+    @Test
+    public void testModel2EventMfp() {
+        testModel2EventModel("MyFirstPolicyModel");
+    }
+
+    @Test
+    public void testModel2EventSample() {
+        testModel2EventModel("SamplePolicyModelJAVASCRIPT");
+    }
+
+    /**
+     * Run the application.
+     * 
+     * @param eventArgs the command arguments
+     * @return a string containing the command output
+     */
+    private String runModel2Event(final String[] eventArgs) {
+        final ByteArrayOutputStream baosOut = new ByteArrayOutputStream();
+        final ByteArrayOutputStream baosErr = new ByteArrayOutputStream();
+
+        new Model2EventMain(eventArgs, new PrintStream(baosOut, true));
+
+        String outString = baosOut.toString();
+        String errString = baosErr.toString();
+
+        return "*** StdOut ***\n" + outString + "\n*** StdErr ***\n" + errString;
+    }
+
+    /**
+     * Test Event generation.
+     * 
+     * @param modelName the name of the model file
+     */
+    private void testModel2EventModel(String modelName) {
+        try {
+            File tempFile = File.createTempFile(modelName, ".apex");
+            tempFile.deleteOnExit();
+
+            final String[] eventArgs0 =
+                { "-m", "src/test/resources/models/" + modelName + ".json", "-t", "stimuli" };
+            final String outputString0 = runModel2Event(eventArgs0);
+
+            assertTrue(outputString0.contains("type: stimuli"));
+
+            final String[] eventArgs1 = {"-m", "src/test/resources/models/" + modelName + ".json", "-t", "response" };
+            final String outputString1 = runModel2Event(eventArgs1);
+
+            assertTrue(outputString1.contains("type: response"));
+
+            final String[] eventArgs2 = {"-m", "src/test/resources/models/" + modelName + ".json", "-t", "internal" };
+            final String outputString2 = runModel2Event(eventArgs2);
+
+            assertTrue(outputString2.contains("type: internal"));
+        } catch (Exception e) {
+            throw new ApexRuntimeException("test should not throw an exception", e);
+        }
+    }
+}