diff --git a/src/test/java/io/reactivex/tck/CompletableAndThenPublisherTckTest.java b/src/test/java/io/reactivex/tck/CompletableAndThenPublisherTckTest.java
new file mode 100644
index 0000000000..5a4c5f450c
--- /dev/null
+++ b/src/test/java/io/reactivex/tck/CompletableAndThenPublisherTckTest.java
@@ -0,0 +1,30 @@
+/**
+ * Copyright (c) 2016-present, RxJava Contributors.
+ *
+ * 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.
+ */
+
+package io.reactivex.tck;
+
+import org.reactivestreams.Publisher;
+import org.testng.annotations.Test;
+
+import io.reactivex.*;
+
+@Test
+public class CompletableAndThenPublisherTckTest extends BaseTck<Integer> {
+
+    @Override
+    public Publisher<Integer> createPublisher(final long elements) {
+        return
+                Completable.complete().hide().andThen(Flowable.range(0, (int)elements))
+        ;
+    }
+}
diff --git a/src/test/java/io/reactivex/tck/MaybeFlatMapPublisherTckTest.java b/src/test/java/io/reactivex/tck/MaybeFlatMapPublisherTckTest.java
new file mode 100644
index 0000000000..a05af6e197
--- /dev/null
+++ b/src/test/java/io/reactivex/tck/MaybeFlatMapPublisherTckTest.java
@@ -0,0 +1,37 @@
+/**
+ * Copyright (c) 2016-present, RxJava Contributors.
+ *
+ * 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.
+ */
+
+package io.reactivex.tck;
+
+import org.reactivestreams.Publisher;
+import org.testng.annotations.Test;
+
+import io.reactivex.*;
+import io.reactivex.functions.Function;
+
+@Test
+public class MaybeFlatMapPublisherTckTest extends BaseTck<Integer> {
+
+    @Override
+    public Publisher<Integer> createPublisher(final long elements) {
+        return
+                Maybe.just(1).hide().flatMapPublisher(new Function<Integer, Publisher<Integer>>() {
+                    @Override
+                    public Publisher<Integer> apply(Integer v)
+                            throws Exception {
+                        return Flowable.range(0, (int)elements);
+                    }
+                })
+        ;
+    }
+}
diff --git a/src/test/java/io/reactivex/tck/MulticastProcessorAsPublisherTckTest.java b/src/test/java/io/reactivex/tck/MulticastProcessorAsPublisherTckTest.java
new file mode 100644
index 0000000000..01f4710c58
--- /dev/null
+++ b/src/test/java/io/reactivex/tck/MulticastProcessorAsPublisherTckTest.java
@@ -0,0 +1,63 @@
+/**
+ * Copyright (c) 2016-present, RxJava Contributors.
+ *
+ * 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.
+ */
+
+package io.reactivex.tck;
+
+import org.reactivestreams.Publisher;
+import org.testng.annotations.Test;
+
+import io.reactivex.processors.MulticastProcessor;
+import io.reactivex.schedulers.Schedulers;
+
+@Test
+public class MulticastProcessorAsPublisherTckTest extends BaseTck<Integer> {
+
+    public MulticastProcessorAsPublisherTckTest() {
+        super(100);
+    }
+
+    @Override
+    public Publisher<Integer> createPublisher(final long elements) {
+        final MulticastProcessor<Integer> mp = MulticastProcessor.create();
+        mp.start();
+
+        Schedulers.io().scheduleDirect(new Runnable() {
+            @Override
+            public void run() {
+                long start = System.currentTimeMillis();
+                while (!mp.hasSubscribers()) {
+                    try {
+                        Thread.sleep(1);
+                    } catch (InterruptedException ex) {
+                        return;
+                    }
+
+                    if (System.currentTimeMillis() - start > 200) {
+                        return;
+                    }
+                }
+
+                for (int i = 0; i < elements; i++) {
+                    while (!mp.offer(i)) {
+                        Thread.yield();
+                        if (System.currentTimeMillis() - start > 1000) {
+                            return;
+                        }
+                    }
+                }
+                mp.onComplete();
+            }
+        });
+        return mp;
+    }
+}
diff --git a/src/test/java/io/reactivex/tck/MulticastProcessorRefCountedTckTest.java b/src/test/java/io/reactivex/tck/MulticastProcessorRefCountedTckTest.java
new file mode 100644
index 0000000000..24a3b8d09f
--- /dev/null
+++ b/src/test/java/io/reactivex/tck/MulticastProcessorRefCountedTckTest.java
@@ -0,0 +1,65 @@
+/**
+ * Copyright (c) 2016-present, RxJava Contributors.
+ *
+ * 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.
+ */
+
+package io.reactivex.tck;
+
+import java.util.concurrent.*;
+
+import org.reactivestreams.*;
+import org.reactivestreams.tck.*;
+import org.testng.annotations.Test;
+
+import io.reactivex.exceptions.TestException;
+import io.reactivex.processors.*;
+
+@Test
+public class MulticastProcessorRefCountedTckTest extends IdentityProcessorVerification<Integer> {
+
+    public MulticastProcessorRefCountedTckTest() {
+        super(new TestEnvironment(50));
+    }
+
+    @Override
+    public Processor<Integer, Integer> createIdentityProcessor(int bufferSize) {
+        MulticastProcessor<Integer> mp = MulticastProcessor.create(true);
+        return mp;
+    }
+
+    @Override
+    public Publisher<Integer> createFailedPublisher() {
+        MulticastProcessor<Integer> mp = MulticastProcessor.create();
+        mp.start();
+        mp.onError(new TestException());
+        return mp;
+    }
+
+    @Override
+    public ExecutorService publisherExecutorService() {
+        return Executors.newCachedThreadPool();
+    }
+
+    @Override
+    public Integer createElement(int element) {
+        return element;
+    }
+
+    @Override
+    public long maxSupportedSubscribers() {
+        return 1;
+    }
+
+    @Override
+    public long maxElementsFromPublisher() {
+        return 1024;
+    }
+}
diff --git a/src/test/java/io/reactivex/tck/MulticastProcessorTckTest.java b/src/test/java/io/reactivex/tck/MulticastProcessorTckTest.java
new file mode 100644
index 0000000000..53dd476e6f
--- /dev/null
+++ b/src/test/java/io/reactivex/tck/MulticastProcessorTckTest.java
@@ -0,0 +1,65 @@
+/**
+ * Copyright (c) 2016-present, RxJava Contributors.
+ *
+ * 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.
+ */
+
+package io.reactivex.tck;
+
+import java.util.concurrent.*;
+
+import org.reactivestreams.*;
+import org.reactivestreams.tck.*;
+import org.testng.annotations.Test;
+
+import io.reactivex.exceptions.TestException;
+import io.reactivex.processors.*;
+
+@Test
+public class MulticastProcessorTckTest extends IdentityProcessorVerification<Integer> {
+
+    public MulticastProcessorTckTest() {
+        super(new TestEnvironment(50));
+    }
+
+    @Override
+    public Processor<Integer, Integer> createIdentityProcessor(int bufferSize) {
+        MulticastProcessor<Integer> mp = MulticastProcessor.create();
+        return new RefCountProcessor<Integer>(mp);
+    }
+
+    @Override
+    public Publisher<Integer> createFailedPublisher() {
+        MulticastProcessor<Integer> mp = MulticastProcessor.create();
+        mp.start();
+        mp.onError(new TestException());
+        return mp;
+    }
+
+    @Override
+    public ExecutorService publisherExecutorService() {
+        return Executors.newCachedThreadPool();
+    }
+
+    @Override
+    public Integer createElement(int element) {
+        return element;
+    }
+
+    @Override
+    public long maxSupportedSubscribers() {
+        return 1;
+    }
+
+    @Override
+    public long maxElementsFromPublisher() {
+        return 1024;
+    }
+}
diff --git a/src/test/java/io/reactivex/tck/SingleFlatMapFlowableTckTest.java b/src/test/java/io/reactivex/tck/SingleFlatMapFlowableTckTest.java
new file mode 100644
index 0000000000..009bd5e50f
--- /dev/null
+++ b/src/test/java/io/reactivex/tck/SingleFlatMapFlowableTckTest.java
@@ -0,0 +1,37 @@
+/**
+ * Copyright (c) 2016-present, RxJava Contributors.
+ *
+ * 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.
+ */
+
+package io.reactivex.tck;
+
+import org.reactivestreams.Publisher;
+import org.testng.annotations.Test;
+
+import io.reactivex.*;
+import io.reactivex.functions.Function;
+
+@Test
+public class SingleFlatMapFlowableTckTest extends BaseTck<Integer> {
+
+    @Override
+    public Publisher<Integer> createPublisher(final long elements) {
+        return
+                Single.just(1).hide().flatMapPublisher(new Function<Integer, Publisher<Integer>>() {
+                    @Override
+                    public Publisher<Integer> apply(Integer v)
+                            throws Exception {
+                        return Flowable.range(0, (int)elements);
+                    }
+                })
+        ;
+    }
+}