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diff --git a/src/test/java/org/onap/dcae/TestingUtilities.java b/src/test/java/org/onap/dcae/TestingUtilities.java
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+/*-
+ * ============LICENSE_START=======================================================
+ * org.onap.dcaegen2.restconfcollector
+ * ================================================================================
+ * Copyright (C) 2018 Nokia. All rights reserved.
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2018-2019 Huawei. 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.
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.dcae;
+
+import static java.nio.file.Files.readAllBytes;
+import static org.assertj.core.api.Assertions.assertThat;
+
+import io.vavr.control.Try;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.security.KeyStore;
+import java.security.KeyStoreException;
+import java.security.NoSuchAlgorithmException;
+import java.security.UnrecoverableKeyException;
+import java.security.cert.CertificateException;
+
+import org.apache.http.client.HttpClient;
+import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
+import org.apache.http.impl.client.HttpClients;
+import org.apache.http.ssl.SSLContextBuilder;
+import org.assertj.core.api.AbstractThrowableAssert;
+import org.assertj.core.api.Java6Assertions;
+import org.json.JSONObject;
+import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
+import org.springframework.web.client.RestTemplate;
+
+import javax.net.ssl.SSLContext;
+
+public final class TestingUtilities {
+
+    private TestingUtilities() {
+        // utility class, no objects allowed
+    }
+
+    public static void assertJSONObjectsEqual(JSONObject o1, JSONObject o2) {
+        assertThat(o1.toString()).isEqualTo(o2.toString());
+    }
+
+    public static JSONObject readJSONFromFile(Path path) {
+        return rethrow(() -> new JSONObject(readFile(path)));
+    }
+
+    public static String readFile(Path path) {
+        return rethrow(() -> new String(readAllBytes(path)));
+    }
+
+    public static Path createTemporaryFile(String content) {
+        return rethrow(() -> {
+            File temp = File.createTempFile("restconf-collector-tests-created-this-file", ".tmp");
+            temp.deleteOnExit();
+            Path filePath = Paths.get(temp.toString());
+            Files.write(filePath, content.getBytes());
+            return filePath;
+        });
+    }
+
+    /**
+     * Exception in test case usually means there is something wrong, it should never be catched, but rather thrown to
+     * be handled by JUnit framework.
+     */
+    public static <T> T rethrow(CheckedSupplier<T> supplier) {
+        try {
+            return supplier.get();
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    @FunctionalInterface
+    interface CheckedSupplier<T> {
+
+        T get() throws Exception;
+    }
+
+    public static void assertFailureHasInfo(Try any, String... msgPart) {
+        Java6Assertions.assertThat(any.isFailure()).isTrue();
+        AbstractThrowableAssert<?, ? extends Throwable> o = Java6Assertions.assertThat(any.getCause())
+                .hasCauseInstanceOf(Exception.class);
+        for (String s : msgPart) {
+            o.hasStackTraceContaining(s);
+        }
+    }
+
+    public static SSLContextBuilder sslBuilderWithTrustStore(final Path trustStore, final String pass) {
+        return rethrow(() ->
+                new SSLContextBuilder()
+                        .loadTrustMaterial(trustStore.toFile(), pass.toCharArray())
+        );
+    }
+
+    public static SSLContextBuilder configureKeyStore(
+            final SSLContextBuilder builder,
+            final Path keyStore,
+            final String pass) {
+        return rethrow(() -> {
+            KeyStore cks = KeyStore.getInstance(KeyStore.getDefaultType());
+            cks.load(new FileInputStream(keyStore.toFile()), pass.toCharArray());
+
+            builder.loadKeyMaterial(cks, pass.toCharArray());
+
+            return builder;
+        });
+    }
+
+    public static RestTemplate createRestTemplateWithSsl(final SSLContext context) {
+        final SSLConnectionSocketFactory socketFactory = new SSLConnectionSocketFactory(context);
+        final HttpClient httpClient = HttpClients
+                .custom()
+                .setSSLSocketFactory(socketFactory)
+                .build();
+
+        final HttpComponentsClientHttpRequestFactory factory =
+                new HttpComponentsClientHttpRequestFactory(httpClient);
+
+        return new RestTemplate(factory);
+    }
+}