PDPX Healthcheck/Statistic RESTful API entry point

Includes:
- Basic code structure modeled after policy distribution
- Code implementation to support Healthcheck/Statistics RESTful API entry point
- JUnits
- Fixed Checkstyles issues and added some missing statistics classes and
Junits
- Made changes per Jim's comments
- Made more changes per Jim's comments
	> made gson field static
	> using AssertThatThrownBy() mechanic from AssertJ
	> added setup and teardown to correctly terminate activator in
	Junit
- Made corrections to the statitics endpoint and junits

Change-Id: Iad40272beceff8a0f99966440e96a84fc2043b12
Issue-ID: POLICY-1436
Signed-off-by: Michael Mokry <michael.mokry@att.com>

17 files changed, 812 insertions, 0 deletions

diff --git a/main/src/test/java/org/onap/policy/pdpx/main/parameters/CommonTestData.java b/main/src/test/java/org/onap/policy/pdpx/main/parameters/CommonTestData.java
new file mode 100644
index 00000000..f50871ec
--- /dev/null
+++ b/main/src/test/java/org/onap/policy/pdpx/main/parameters/CommonTestData.java
@@ -0,0 +1,52 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2019 AT&T Intellectual Property. 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.pdpx.main.parameters;
+
+/**
+ * Class to hold/create all parameters for test cases.
+ *
+ */
+public class CommonTestData {
+
+    private static final String REST_SERVER_PASSWORD = "zb!XztG34";
+    private static final String REST_SERVER_USER = "healthcheck";
+    private static final int REST_SERVER_PORT = 6969;
+    private static final String REST_SERVER_HOST = "0.0.0.0";
+    public static final String PDPX_GROUP_NAME = "XacmlPdpGroup";
+
+    /**
+     * Returns an instance of RestServerParameters for test cases.
+     *
+     * @param isEmpty boolean value to represent that object created should be empty or not
+     * @return the restServerParameters object
+     */
+    public RestServerParameters getRestServerParameters(final boolean isEmpty) {
+        final RestServerParameters restServerParameters;
+        if (!isEmpty) {
+            restServerParameters = new RestServerParameters(REST_SERVER_HOST, REST_SERVER_PORT, REST_SERVER_USER,
+                    REST_SERVER_PASSWORD);
+        } else {
+            restServerParameters = new RestServerParameters(null, 0, null, null);
+        }
+        return restServerParameters;
+    }
+
+}
diff --git a/main/src/test/java/org/onap/policy/pdpx/main/parameters/TestXacmlPdpParameterGroup.java b/main/src/test/java/org/onap/policy/pdpx/main/parameters/TestXacmlPdpParameterGroup.java
new file mode 100644
index 00000000..4b9db99d
--- /dev/null
+++ b/main/src/test/java/org/onap/policy/pdpx/main/parameters/TestXacmlPdpParameterGroup.java
@@ -0,0 +1,87 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2019 AT&T Intellectual Property. 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.pdpx.main.parameters;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+import org.onap.policy.common.parameters.GroupValidationResult;
+
+/**
+ * Class to perform unit test of XacmlPdpParameterGroup.
+ *
+ */
+public class TestXacmlPdpParameterGroup {
+    CommonTestData commonTestData = new CommonTestData();
+
+    @Test
+    public void testXacmlPdpParameterGroup() {
+        final RestServerParameters restServerParameters = commonTestData.getRestServerParameters(false);
+        final XacmlPdpParameterGroup pdpxParameters =
+                new XacmlPdpParameterGroup(CommonTestData.PDPX_GROUP_NAME, restServerParameters);
+        final GroupValidationResult validationResult = pdpxParameters.validate();
+        assertTrue(validationResult.isValid());
+        assertEquals(restServerParameters.getHost(), pdpxParameters.getRestServerParameters().getHost());
+        assertEquals(restServerParameters.getPort(), pdpxParameters.getRestServerParameters().getPort());
+        assertEquals(restServerParameters.getUserName(), pdpxParameters.getRestServerParameters().getUserName());
+        assertEquals(restServerParameters.getPassword(), pdpxParameters.getRestServerParameters().getPassword());
+        assertEquals(CommonTestData.PDPX_GROUP_NAME, pdpxParameters.getName());
+    }
+
+    @Test
+    public void testXacmlPdpParameterGroup_NullName() {
+        final RestServerParameters restServerParameters = commonTestData.getRestServerParameters(false);
+        final XacmlPdpParameterGroup pdpxParameters = new XacmlPdpParameterGroup(null, restServerParameters);
+        final GroupValidationResult validationResult = pdpxParameters.validate();
+        assertFalse(validationResult.isValid());
+        assertEquals(null, pdpxParameters.getName());
+        assertTrue(validationResult.getResult().contains(
+                "field \"name\" type \"java.lang.String\" value \"null\" INVALID, " + "must be a non-blank string"));
+    }
+
+    @Test
+    public void testXacmlPdpParameterGroup_EmptyName() {
+        final RestServerParameters restServerParameters = commonTestData.getRestServerParameters(false);
+
+        final XacmlPdpParameterGroup pdpxParameters = new XacmlPdpParameterGroup("", restServerParameters);
+        final GroupValidationResult validationResult = pdpxParameters.validate();
+        assertFalse(validationResult.isValid());
+        assertEquals("", pdpxParameters.getName());
+        assertTrue(validationResult.getResult().contains(
+                "field \"name\" type \"java.lang.String\" value \"\" INVALID, " + "must be a non-blank string"));
+    }
+
+    @Test
+    public void testXacmlPdpParameterGroup_EmptyRestServerParameters() {
+        final RestServerParameters restServerParameters = commonTestData.getRestServerParameters(true);
+
+        final XacmlPdpParameterGroup pdpxParameters =
+                new XacmlPdpParameterGroup(CommonTestData.PDPX_GROUP_NAME, restServerParameters);
+        final GroupValidationResult validationResult = pdpxParameters.validate();
+        assertFalse(validationResult.isValid());
+        assertTrue(validationResult.getResult()
+                .contains("\"org.onap.policy.pdpx.main.parameters.RestServerParameters\" INVALID, "
+                        + "parameter group has status INVALID"));
+    }
+}
diff --git a/main/src/test/java/org/onap/policy/pdpx/main/parameters/TestXacmlPdpParameterHandler.java b/main/src/test/java/org/onap/policy/pdpx/main/parameters/TestXacmlPdpParameterHandler.java
new file mode 100644
index 00000000..3955031a
--- /dev/null
+++ b/main/src/test/java/org/onap/policy/pdpx/main/parameters/TestXacmlPdpParameterHandler.java
@@ -0,0 +1,179 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2019 AT&T Intellectual Property. 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.pdpx.main.parameters;
+
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import org.junit.Test;
+import org.onap.policy.pdpx.main.PolicyXacmlPdpException;
+import org.onap.policy.pdpx.main.startstop.XacmlPdpCommandLineArguments;
+
+/**
+ * Class to perform unit test of XacmlPdpParameterHandler.
+ *
+ */
+public class TestXacmlPdpParameterHandler {
+    @Test
+    public void testParameterHandlerNoParameterFile() throws PolicyXacmlPdpException {
+        final String[] noArgumentString = {"-c", "parameters/NoParameterFile.json"};
+
+        final XacmlPdpCommandLineArguments noArguments = new XacmlPdpCommandLineArguments();
+        noArguments.parse(noArgumentString);
+
+        assertThatThrownBy(() -> new XacmlPdpParameterHandler().getParameters(noArguments))
+                .isInstanceOf(PolicyXacmlPdpException.class);
+    }
+
+    @Test
+    public void testParameterHandlerEmptyParameters() throws PolicyXacmlPdpException {
+        final String[] emptyArgumentString = {"-c", "parameters/EmptyParameters.json"};
+
+        final XacmlPdpCommandLineArguments emptyArguments = new XacmlPdpCommandLineArguments();
+        emptyArguments.parse(emptyArgumentString);
+
+        assertThatThrownBy(() -> new XacmlPdpParameterHandler().getParameters(emptyArguments))
+                .hasMessage("no parameters found in \"parameters/EmptyParameters.json\"");
+    }
+
+    @Test
+    public void testParameterHandlerBadParameters() throws PolicyXacmlPdpException {
+        final String[] badArgumentString = {"-c", "parameters/BadParameters.json"};
+
+        final XacmlPdpCommandLineArguments badArguments = new XacmlPdpCommandLineArguments();
+        badArguments.parse(badArgumentString);
+
+        assertThatThrownBy(() -> new XacmlPdpParameterHandler().getParameters(badArguments))
+                .hasMessage("error reading parameters from \"parameters/BadParameters.json\"\n"
+                        + "(JsonSyntaxException):java.lang.IllegalStateException: "
+                        + "Expected a string but was BEGIN_ARRAY at line 2 column 14 path $.name");
+
+    }
+
+    @Test
+    public void testParameterHandlerInvalidParameters() throws PolicyXacmlPdpException {
+        final String[] invalidArgumentString = {"-c", "parameters/InvalidParameters.json"};
+
+        final XacmlPdpCommandLineArguments invalidArguments = new XacmlPdpCommandLineArguments();
+        invalidArguments.parse(invalidArgumentString);
+
+        assertThatThrownBy(() -> new XacmlPdpParameterHandler().getParameters(invalidArguments))
+                .hasMessage("error reading parameters from \"parameters/InvalidParameters.json\"\n"
+                        + "(JsonSyntaxException):java.lang.IllegalStateException: "
+                        + "Expected a string but was BEGIN_ARRAY at line 2 column 14 path $.name");
+    }
+
+    @Test
+    public void testParameterHandlerNoParameters() throws PolicyXacmlPdpException {
+        final String[] noArgumentString = {"-c", "parameters/NoParameters.json"};
+
+        final XacmlPdpCommandLineArguments noArguments = new XacmlPdpCommandLineArguments();
+        noArguments.parse(noArgumentString);
+
+        assertThatThrownBy(() -> new XacmlPdpParameterHandler().getParameters(noArguments))
+                .hasMessage("validation error(s) on parameters from \"parameters/NoParameters.json\"\nparameter group "
+                        + "\"null\" type \"org.onap.policy.pdpx.main.parameters.XacmlPdpParameterGroup\" INVALID, "
+                        + "parameter group has status INVALID\n"
+                        + "  field \"name\" type \"java.lang.String\" value \"null\" "
+                        + "INVALID, must be a non-blank string\n");
+    }
+
+    @Test
+    public void testParameterHandlerMinumumParameters() throws PolicyXacmlPdpException {
+        final String[] minArgumentString = {"-c", "parameters/MinimumParameters.json"};
+
+        final XacmlPdpCommandLineArguments minArguments = new XacmlPdpCommandLineArguments();
+        minArguments.parse(minArgumentString);
+
+        final XacmlPdpParameterGroup parGroup = new XacmlPdpParameterHandler().getParameters(minArguments);
+        assertEquals(CommonTestData.PDPX_GROUP_NAME, parGroup.getName());
+    }
+
+    @Test
+    public void testXacmlPdpParameterGroup() throws PolicyXacmlPdpException {
+        final String[] xacmlPdpConfigParameters = {"-c", "parameters/XacmlPdpConfigParameters.json"};
+
+        final XacmlPdpCommandLineArguments arguments = new XacmlPdpCommandLineArguments();
+        arguments.parse(xacmlPdpConfigParameters);
+
+        final XacmlPdpParameterGroup parGroup = new XacmlPdpParameterHandler().getParameters(arguments);
+        assertTrue(arguments.checkSetConfigurationFilePath());
+        assertEquals(CommonTestData.PDPX_GROUP_NAME, parGroup.getName());
+    }
+
+    @Test
+    public void testXacmlPdpParameterGroup_InvalidName() throws PolicyXacmlPdpException {
+        final String[] xacmlPdpConfigParameters = {"-c", "parameters/XacmlPdpConfigParameters_InvalidName.json"};
+
+        final XacmlPdpCommandLineArguments arguments = new XacmlPdpCommandLineArguments();
+        arguments.parse(xacmlPdpConfigParameters);
+
+        assertThatThrownBy(() -> new XacmlPdpParameterHandler().getParameters(arguments)).hasMessageContaining(
+                "field \"name\" type \"java.lang.String\" value \" \" INVALID, must be a non-blank string");
+    }
+
+    @Test
+    public void testXacmlPdpParameterGroup_InvalidRestServerParameters() throws PolicyXacmlPdpException, IOException {
+        final String[] xacmlPdpConfigParameters =
+            {"-c", "parameters/XacmlPdpConfigParameters_InvalidRestServerParameters.json"};
+
+        final XacmlPdpCommandLineArguments arguments = new XacmlPdpCommandLineArguments();
+        arguments.parse(xacmlPdpConfigParameters);
+
+        final String expectedResult = new String(Files.readAllBytes(
+                Paths.get("src/test/resources/expectedValidationResults/InvalidRestServerParameters.txt")));
+
+        assertThatThrownBy(() -> new XacmlPdpParameterHandler().getParameters(arguments))
+                .hasMessageContaining("validation error(s) on parameters from "
+                        + "\"parameters/XacmlPdpConfigParameters_InvalidRestServerParameters.json\"");
+    }
+
+    @Test
+    public void testXacmlPdpVersion() throws PolicyXacmlPdpException {
+        final String[] xacmlPdpConfigParameters = {"-v"};
+        final XacmlPdpCommandLineArguments arguments = new XacmlPdpCommandLineArguments();
+        final String version = arguments.parse(xacmlPdpConfigParameters);
+        assertTrue(version.startsWith("ONAP Policy Framework Xacml PDP Service"));
+    }
+
+    @Test
+    public void testXacmlPdpHelp() throws PolicyXacmlPdpException {
+        final String[] xacmlPdpConfigParameters = {"-h"};
+        final XacmlPdpCommandLineArguments arguments = new XacmlPdpCommandLineArguments();
+        final String help = arguments.parse(xacmlPdpConfigParameters);
+        assertTrue(help.startsWith("usage:"));
+    }
+
+    @Test
+    public void testXacmlPdpInvalidOption() throws PolicyXacmlPdpException {
+        final String[] xacmlPdpConfigParameters = {"-d"};
+        final XacmlPdpCommandLineArguments arguments = new XacmlPdpCommandLineArguments();
+        try {
+            arguments.parse(xacmlPdpConfigParameters);
+        } catch (final Exception exp) {
+            assertTrue(exp.getMessage().startsWith("invalid command line arguments specified"));
+        }
+    }
+}
diff --git a/main/src/test/java/org/onap/policy/pdpx/main/rest/TestStatisticsReport.java b/main/src/test/java/org/onap/policy/pdpx/main/rest/TestStatisticsReport.java
new file mode 100644
index 00000000..a116a154
--- /dev/null
+++ b/main/src/test/java/org/onap/policy/pdpx/main/rest/TestStatisticsReport.java
@@ -0,0 +1,46 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2019 AT&T Intellectual Property. 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.pdpx.main.rest;
+
+import com.openpojo.reflection.filters.FilterClassName;
+import com.openpojo.validation.Validator;
+import com.openpojo.validation.ValidatorBuilder;
+import com.openpojo.validation.rule.impl.SetterMustExistRule;
+import com.openpojo.validation.test.impl.GetterTester;
+import com.openpojo.validation.test.impl.SetterTester;
+
+import org.junit.Test;
+import org.onap.policy.common.utils.validation.ToStringTester;
+
+/**
+ * Class to perform unit testing of {@link StatisticsReport}.
+ *
+ */
+public class TestStatisticsReport {
+
+    @Test
+    public void testStatisticsReport() {
+        final Validator validator = ValidatorBuilder.create().with(new ToStringTester()).with(new SetterMustExistRule())
+                .with(new SetterTester()).with(new GetterTester()).build();
+        validator.validate(StatisticsReport.class.getPackage().getName(),
+                new FilterClassName(StatisticsReport.class.getName()));
+    }
+}
diff --git a/main/src/test/java/org/onap/policy/pdpx/main/rest/TestXacmlPdpRestServer.java b/main/src/test/java/org/onap/policy/pdpx/main/rest/TestXacmlPdpRestServer.java
new file mode 100644
index 00000000..ce0671a6
--- /dev/null
+++ b/main/src/test/java/org/onap/policy/pdpx/main/rest/TestXacmlPdpRestServer.java
@@ -0,0 +1,121 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2019 AT&T Intellectual Property. 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.pdpx.main.rest;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import javax.ws.rs.client.Client;
+import javax.ws.rs.client.ClientBuilder;
+import javax.ws.rs.client.Invocation;
+import javax.ws.rs.client.WebTarget;
+import javax.ws.rs.core.MediaType;
+import org.glassfish.jersey.client.ClientConfig;
+import org.glassfish.jersey.client.authentication.HttpAuthenticationFeature;
+import org.junit.Test;
+import org.onap.policy.common.endpoints.report.HealthCheckReport;
+import org.onap.policy.pdpx.main.PolicyXacmlPdpException;
+import org.onap.policy.pdpx.main.parameters.CommonTestData;
+import org.onap.policy.pdpx.main.parameters.RestServerParameters;
+import org.onap.policy.pdpx.main.startstop.Main;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+
+/**
+ * Class to perform unit test of HealthCheckMonitor.
+ *
+ */
+public class TestXacmlPdpRestServer {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(TestXacmlPdpRestServer.class);
+    private static final String NOT_ALIVE = "not alive";
+    private static final String ALIVE = "alive";
+    private static final String SELF = "self";
+    private static final String NAME = "Policy Xacml PDP";
+
+    @Test
+    public void testHealthCheckSuccess() throws PolicyXacmlPdpException, InterruptedException {
+        final String reportString = "Report [name=Policy Xacml PDP, url=self, healthy=true, code=200, message=alive]";
+        final Main main = startXacmlPdpService();
+        final HealthCheckReport report = performHealthCheck();
+        validateReport(NAME, SELF, true, 200, ALIVE, reportString, report);
+        stopXacmlPdpService(main);
+    }
+
+    @Test
+    public void testHealthCheckFailure() throws InterruptedException {
+        final String reportString =
+                "Report [name=Policy Xacml PDP, url=self, healthy=false, code=500, message=not alive]";
+        final RestServerParameters restServerParams = new CommonTestData().getRestServerParameters(false);
+        restServerParams.setName(CommonTestData.PDPX_GROUP_NAME);
+        final XacmlPdpRestServer restServer = new XacmlPdpRestServer(restServerParams);
+        restServer.start();
+        final HealthCheckReport report = performHealthCheck();
+        validateReport(NAME, SELF, false, 500, NOT_ALIVE, reportString, report);
+        assertTrue(restServer.isAlive());
+        assertTrue(restServer.toString().startsWith("XacmlPdpRestServer [servers="));
+        restServer.shutdown();
+    }
+
+    private Main startXacmlPdpService() {
+        final String[] xacmlPdpConfigParameters = {"-c", "parameters/XacmlPdpConfigParameters.json"};
+        return new Main(xacmlPdpConfigParameters);
+    }
+
+    private void stopXacmlPdpService(final Main main) throws PolicyXacmlPdpException {
+        main.shutdown();
+    }
+
+    private HealthCheckReport performHealthCheck() throws InterruptedException {
+        HealthCheckReport response = null;
+        final ClientConfig clientConfig = new ClientConfig();
+
+        final HttpAuthenticationFeature feature = HttpAuthenticationFeature.basic("healthcheck", "zb!XztG34");
+        clientConfig.register(feature);
+
+        final Client client = ClientBuilder.newClient(clientConfig);
+        final WebTarget webTarget = client.target("http://localhost:6969/healthcheck");
+
+        final Invocation.Builder invocationBuilder = webTarget.request(MediaType.APPLICATION_JSON);
+
+        final long startTime = System.currentTimeMillis();
+        while (response == null && (System.currentTimeMillis() - startTime) < 120000) {
+            try {
+                response = invocationBuilder.get(HealthCheckReport.class);
+            } catch (final Exception exp) {
+                LOGGER.info("the server is not started yet. We will retry again");
+            }
+        }
+        return response;
+    }
+
+    private void validateReport(final String name, final String url, final boolean healthy, final int code,
+            final String message, final String reportString, final HealthCheckReport report) {
+        assertEquals(name, report.getName());
+        assertEquals(url, report.getUrl());
+        assertEquals(healthy, report.isHealthy());
+        assertEquals(code, report.getCode());
+        assertEquals(message, report.getMessage());
+        assertEquals(reportString, report.toString());
+    }
+}
diff --git a/main/src/test/java/org/onap/policy/pdpx/main/rest/TestXacmlPdpStatistics.java b/main/src/test/java/org/onap/policy/pdpx/main/rest/TestXacmlPdpStatistics.java
new file mode 100644
index 00000000..303a3cfe
--- /dev/null
+++ b/main/src/test/java/org/onap/policy/pdpx/main/rest/TestXacmlPdpStatistics.java
@@ -0,0 +1,129 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2019 AT&T Intellectual Property. 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.pdpx.main.rest;
+
+import static org.junit.Assert.assertEquals;
+
+import javax.ws.rs.client.Client;
+import javax.ws.rs.client.ClientBuilder;
+import javax.ws.rs.client.Invocation;
+import javax.ws.rs.client.WebTarget;
+import javax.ws.rs.core.MediaType;
+
+import org.glassfish.jersey.client.ClientConfig;
+import org.glassfish.jersey.client.authentication.HttpAuthenticationFeature;
+import org.junit.Test;
+
+import org.onap.policy.pdpx.main.PolicyXacmlPdpException;
+import org.onap.policy.pdpx.main.parameters.CommonTestData;
+import org.onap.policy.pdpx.main.parameters.RestServerParameters;
+import org.onap.policy.pdpx.main.rest.XacmlPdpStatisticsManager;
+import org.onap.policy.pdpx.main.startstop.Main;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Class to perform unit test of {@link XacmlPdpRestController}.
+ *
+ */
+public class TestXacmlPdpStatistics {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(TestXacmlPdpStatistics.class);
+
+
+    @Test
+    public void testXacmlPdpStatistics_200() throws PolicyXacmlPdpException, InterruptedException {
+        final Main main = startXacmlPdpService();
+        StatisticsReport report = getXacmlPdpStatistics();
+
+        validateReport(report, 0, 200);
+        updateXacmlPdpStatistics();
+        report = getXacmlPdpStatistics();
+        validateReport(report, 1, 200);
+        stopXacmlPdpService(main);
+        XacmlPdpStatisticsManager.resetAllStatistics();
+    }
+
+    @Test
+    public void testXacmlPdpStatistics_500() throws InterruptedException {
+        final RestServerParameters restServerParams = new CommonTestData().getRestServerParameters(false);
+        restServerParams.setName(CommonTestData.PDPX_GROUP_NAME);
+
+        final XacmlPdpRestServer restServer = new XacmlPdpRestServer(restServerParams);
+        restServer.start();
+        final StatisticsReport report = getXacmlPdpStatistics();
+
+        validateReport(report, 0, 500);
+        restServer.shutdown();
+        XacmlPdpStatisticsManager.resetAllStatistics();
+    }
+
+
+    private Main startXacmlPdpService() {
+        final String[] XacmlPdpConfigParameters =
+            { "-c", "parameters/XacmlPdpConfigParameters.json" };
+        return new Main(XacmlPdpConfigParameters);
+    }
+
+    private void stopXacmlPdpService(final Main main) throws PolicyXacmlPdpException {
+        main.shutdown();
+    }
+
+    private StatisticsReport getXacmlPdpStatistics() throws InterruptedException {
+        StatisticsReport response = null;
+        final ClientConfig clientConfig = new ClientConfig();
+
+        final HttpAuthenticationFeature feature = HttpAuthenticationFeature.basic("healthcheck", "zb!XztG34");
+        clientConfig.register(feature);
+
+        final Client client = ClientBuilder.newClient(clientConfig);
+        final WebTarget webTarget = client.target("http://localhost:6969/statistics");
+
+        final Invocation.Builder invocationBuilder = webTarget.request(MediaType.APPLICATION_JSON);
+        final long startTime = System.currentTimeMillis();
+        while (response == null && (System.currentTimeMillis() - startTime) < 120000) {
+            try {
+                response = invocationBuilder.get(StatisticsReport.class);
+            } catch (final Exception exp) {
+                LOGGER.info("the server is not started yet. We will retry again");
+            }
+        }
+        return response;
+    }
+
+    private void updateXacmlPdpStatistics() {
+        XacmlPdpStatisticsManager.updateTotalPoliciesCount();
+        XacmlPdpStatisticsManager.updatePermitDecisionsCount();
+        XacmlPdpStatisticsManager.updateDenyDecisionsCount();
+        XacmlPdpStatisticsManager.updateIndeterminantDecisionsCount();
+        XacmlPdpStatisticsManager.updateNotApplicableDecisionsCount();
+    }
+
+    private void validateReport(final StatisticsReport report, final int count, final int code) {
+        assertEquals(code, report.getCode());
+        assertEquals(count, report.getTotalPoliciesCount());
+        assertEquals(count, report.getPermitDecisionsCount());
+        assertEquals(count, report.getDenyDecisionsCount());
+        assertEquals(count, report.getIndeterminantDecisionsCount());
+        assertEquals(count, report.getNotApplicableDecisionsCount());
+    }
+}
diff --git a/main/src/test/java/org/onap/policy/pdpx/main/startstop/TestMain.java b/main/src/test/java/org/onap/policy/pdpx/main/startstop/TestMain.java
new file mode 100644
index 00000000..8178343c
--- /dev/null
+++ b/main/src/test/java/org/onap/policy/pdpx/main/startstop/TestMain.java
@@ -0,0 +1,72 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2019 AT&T Intellectual Property. 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.pdpx.main.startstop;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+import org.onap.policy.pdpx.main.PolicyXacmlPdpException;
+import org.onap.policy.pdpx.main.parameters.CommonTestData;
+
+/**
+ * Class to perform unit test of Main.
+ *
+ */
+public class TestMain {
+
+    @Test
+    public void testMain() throws PolicyXacmlPdpException {
+        final String[] xacmlPdpConfigParameters = {"-c", "parameters/XacmlPdpConfigParameters.json"};
+        final Main main = new Main(xacmlPdpConfigParameters);
+        assertTrue(main.getParameters().isValid());
+        assertEquals(CommonTestData.PDPX_GROUP_NAME, main.getParameters().getName());
+        main.shutdown();
+    }
+
+    @Test
+    public void testMain_NoArguments() {
+        final String[] xacmlPdpConfigParameters = {};
+        final Main main = new Main(xacmlPdpConfigParameters);
+        assertNull(main.getParameters());
+    }
+
+    @Test
+    public void testMain_InvalidArguments() {
+        final String[] xacmlPdpConfigParameters = {"parameters/XacmlPdpConfigParameters.json"};
+        final Main main = new Main(xacmlPdpConfigParameters);
+        assertNull(main.getParameters());
+    }
+
+    @Test
+    public void testMain_Help() {
+        final String[] xacmlPdpConfigParameters = {"-h"};
+        Main.main(xacmlPdpConfigParameters);
+    }
+
+    @Test
+    public void testMain_InvalidParameters() {
+        final String[] xacmlPdpConfigParameters = {"-c", "parameters/XacmlPdpConfigParameters_InvalidName.json"};
+        final Main main = new Main(xacmlPdpConfigParameters);
+        assertNull(main.getParameters());
+    }
+}
diff --git a/main/src/test/java/org/onap/policy/pdpx/main/startstop/TestXacmlPdpActivator.java b/main/src/test/java/org/onap/policy/pdpx/main/startstop/TestXacmlPdpActivator.java
new file mode 100644
index 00000000..7a514f70
--- /dev/null
+++ b/main/src/test/java/org/onap/policy/pdpx/main/startstop/TestXacmlPdpActivator.java
@@ -0,0 +1,69 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2019 AT&T Intellectual Property. 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.pdpx.main.startstop;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.After;
+import org.junit.BeforeClass;
+
+import org.junit.Test;
+import org.onap.policy.pdpx.main.PolicyXacmlPdpException;
+import org.onap.policy.pdpx.main.parameters.CommonTestData;
+import org.onap.policy.pdpx.main.parameters.XacmlPdpParameterGroup;
+import org.onap.policy.pdpx.main.parameters.XacmlPdpParameterHandler;
+
+
+/**
+ * Class to perform unit test of XacmlPdpActivator.
+ *
+ */
+public class TestXacmlPdpActivator {
+    private static XacmlPdpActivator activator = null;
+
+    /**
+     * Setup the tests.
+     * @throws PolicyXacmlPdpException when Xacml PDP Exceptional condition occurs
+     */
+    @BeforeClass
+    public static void setup() throws PolicyXacmlPdpException {
+        final String[] xacmlPdpConfigParameters = {"-c", "parameters/XacmlPdpConfigParameters.json"};
+
+        final XacmlPdpCommandLineArguments arguments = new XacmlPdpCommandLineArguments(xacmlPdpConfigParameters);
+
+        final XacmlPdpParameterGroup parGroup = new XacmlPdpParameterHandler().getParameters(arguments);
+
+        activator = new XacmlPdpActivator(parGroup);
+        activator.initialize();
+    }
+
+    @Test
+    public void testXacmlPdpActivator() throws PolicyXacmlPdpException {
+        assertTrue(activator.getParameterGroup().isValid());
+        assertEquals(CommonTestData.PDPX_GROUP_NAME, activator.getParameterGroup().getName());
+    }
+
+    @After
+    public void teardown() throws PolicyXacmlPdpException {
+        activator.terminate();
+    }
+}
diff --git a/main/src/test/resources/expectedValidationResults/InvalidRestServerParameters.txt b/main/src/test/resources/expectedValidationResults/InvalidRestServerParameters.txt
new file mode 100644
index 00000000..957da6d6
--- /dev/null
+++ b/main/src/test/resources/expectedValidationResults/InvalidRestServerParameters.txt
@@ -0,0 +1,7 @@
+validation error(s) on parameters from "parameters/XacmlPdpConfigParameters_InvalidRestServerParameters.json"
+parameter group "XacmlPdpGroup" type "org.onap.policy.pdpx.main.parameters.XacmlPdpParameterGroup" INVALID, parameter group has status INVALID
+  parameter group "null" type "org.onap.policy.pdpx.main.parameters.RestServerParameters" INVALID, parameter group has status INVALID
+    field "host" type "java.lang.String" value "" INVALID, must be a non-blank string containing hostname/ipaddress of the xacml pdp rest server
+    field "port" type "int" value "-1" INVALID, must be a positive integer containing port of the xacml pdp rest server
+    field "userName" type "java.lang.String" value "" INVALID, must be a non-blank string containing userName for xacml pdp rest server credentials
+    field "password" type "java.lang.String" value "" INVALID, must be a non-blank string containing password for xacml pdp rest server credentials
diff --git a/main/src/test/resources/parameters/BadParameters.json b/main/src/test/resources/parameters/BadParameters.json
new file mode 100644
index 00000000..f2abd509
--- /dev/null
+++ b/main/src/test/resources/parameters/BadParameters.json
@@ -0,0 +1,3 @@
+{
+    "name": []
+}
\ No newline at end of file
diff --git a/main/src/test/resources/parameters/EmptyParameters.json b/main/src/test/resources/parameters/EmptyParameters.json
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/main/src/test/resources/parameters/EmptyParameters.json
diff --git a/main/src/test/resources/parameters/InvalidParameters.json b/main/src/test/resources/parameters/InvalidParameters.json
new file mode 100644
index 00000000..f2abd509
--- /dev/null
+++ b/main/src/test/resources/parameters/InvalidParameters.json
@@ -0,0 +1,3 @@
+{
+    "name": []
+}
\ No newline at end of file
diff --git a/main/src/test/resources/parameters/MinimumParameters.json b/main/src/test/resources/parameters/MinimumParameters.json
new file mode 100644
index 00000000..798731ae
--- /dev/null
+++ b/main/src/test/resources/parameters/MinimumParameters.json
@@ -0,0 +1,9 @@
+{
+    "name": "XacmlPdpGroup",
+    "restServerParameters": {
+        "host": "0.0.0.0",
+        "port": 6969,
+        "userName": "healthcheck",
+        "password": "zb!XztG34"
+    }
+}
diff --git a/main/src/test/resources/parameters/NoParameters.json b/main/src/test/resources/parameters/NoParameters.json
new file mode 100644
index 00000000..bbe1ee13
--- /dev/null
+++ b/main/src/test/resources/parameters/NoParameters.json
@@ -0,0 +1,8 @@
+{
+    "restServerParameters": {
+        "host": "0.0.0.0",
+        "port": 6969,
+        "userName": "healthcheck",
+        "password": "zb!XztG34"
+    }
+}
\ No newline at end of file
diff --git a/main/src/test/resources/parameters/XacmlPdpConfigParameters.json b/main/src/test/resources/parameters/XacmlPdpConfigParameters.json
new file mode 100644
index 00000000..798731ae
--- /dev/null
+++ b/main/src/test/resources/parameters/XacmlPdpConfigParameters.json
@@ -0,0 +1,9 @@
+{
+    "name": "XacmlPdpGroup",
+    "restServerParameters": {
+        "host": "0.0.0.0",
+        "port": 6969,
+        "userName": "healthcheck",
+        "password": "zb!XztG34"
+    }
+}
diff --git a/main/src/test/resources/parameters/XacmlPdpConfigParameters_InvalidName.json b/main/src/test/resources/parameters/XacmlPdpConfigParameters_InvalidName.json
new file mode 100644
index 00000000..8949a3c4
--- /dev/null
+++ b/main/src/test/resources/parameters/XacmlPdpConfigParameters_InvalidName.json
@@ -0,0 +1,9 @@
+{
+    "name": " ",
+    "restServerParameters": {
+        "host": "0.0.0.0",
+        "port": 6969,
+        "userName": "healthcheck",
+        "password": "zb!XztG34"
+    }
+}
diff --git a/main/src/test/resources/parameters/XacmlPdpConfigParameters_InvalidRestServerParameters.json b/main/src/test/resources/parameters/XacmlPdpConfigParameters_InvalidRestServerParameters.json
new file mode 100644
index 00000000..8b8e5c67
--- /dev/null
+++ b/main/src/test/resources/parameters/XacmlPdpConfigParameters_InvalidRestServerParameters.json
@@ -0,0 +1,9 @@
+{
+    "name": "XacmlPdpGroup",
+    "restServerParameters": {
+        "host": "",
+        "port": -1,
+        "userName": "",
+        "password": ""
+    }
+}