diff --git a/updater_sample/tests/src/com/example/android/systemupdatersample/util/PayloadSpecsTest.java b/updater_sample/tests/src/com/example/android/systemupdatersample/util/PayloadSpecsTest.java
index c13ba55..2912e20 100644
--- a/updater_sample/tests/src/com/example/android/systemupdatersample/util/PayloadSpecsTest.java
+++ b/updater_sample/tests/src/com/example/android/systemupdatersample/util/PayloadSpecsTest.java
@@ -17,7 +17,8 @@
 package com.example.android.systemupdatersample.util;
 
 import static com.example.android.systemupdatersample.util.PackageFiles.PAYLOAD_BINARY_FILE_NAME;
-import static com.example.android.systemupdatersample.util.PackageFiles.PAYLOAD_PROPERTIES_FILE_NAME;
+import static com.example.android.systemupdatersample.util.PackageFiles
+        .PAYLOAD_PROPERTIES_FILE_NAME;
 
 import static org.junit.Assert.assertArrayEquals;
 import static org.junit.Assert.assertEquals;
@@ -28,6 +29,8 @@
 import android.support.test.runner.AndroidJUnit4;
 
 import com.example.android.systemupdatersample.PayloadSpec;
+import com.google.common.base.Charsets;
+import com.google.common.io.Files;
 
 import org.junit.Before;
 import org.junit.Rule;
@@ -56,16 +59,16 @@
 
     private File mTestDir;
 
-    private Context mContext;
+    private Context mTargetContext;
 
     @Rule
     public final ExpectedException thrown = ExpectedException.none();
 
     @Before
     public void setUp() {
-        mContext = InstrumentationRegistry.getTargetContext();
+        mTargetContext = InstrumentationRegistry.getTargetContext();
 
-        mTestDir = mContext.getFilesDir();
+        mTestDir = mTargetContext.getFilesDir();
     }
 
     @Test
@@ -87,6 +90,21 @@
         PayloadSpecs.forNonStreaming(new File("/fake/news.zip"));
     }
 
+    @Test
+    public void forStreaming_works() throws Exception {
+        String url = "http://a.com/b.zip";
+        long offset = 45;
+        long size = 200;
+        File propertiesFile = createMockPropertiesFile();
+
+        PayloadSpec spec = PayloadSpecs.forStreaming(url, offset, size, propertiesFile);
+        assertEquals("same url", url, spec.getUrl());
+        assertEquals("same offset", offset, spec.getOffset());
+        assertEquals("same size", size, spec.getSize());
+        assertArrayEquals("correct properties",
+                new String[]{"k1=val1", "key2=val2"}, spec.getProperties().toArray(new String[0]));
+    }
+
     /**
      * Creates package zip file that contains payload.bin and payload_properties.txt
      */
@@ -114,4 +132,10 @@
         return testFile;
     }
 
+    private File createMockPropertiesFile() throws IOException {
+        File propertiesFile = new File(mTestDir, PackageFiles.PAYLOAD_PROPERTIES_FILE_NAME);
+        Files.asCharSink(propertiesFile, Charsets.UTF_8).write(PROPERTIES_CONTENTS);
+        return propertiesFile;
+    }
+
 }
diff --git a/updater_sample/tests/src/com/example/android/systemupdatersample/util/UpdateConfigsTest.java b/updater_sample/tests/src/com/example/android/systemupdatersample/util/UpdateConfigsTest.java
index c85698c..4ccae93 100644
--- a/updater_sample/tests/src/com/example/android/systemupdatersample/util/UpdateConfigsTest.java
+++ b/updater_sample/tests/src/com/example/android/systemupdatersample/util/UpdateConfigsTest.java
@@ -18,14 +18,11 @@
 
 import static org.junit.Assert.assertArrayEquals;
 
-import android.content.Context;
-import android.support.test.InstrumentationRegistry;
 import android.support.test.filters.SmallTest;
 import android.support.test.runner.AndroidJUnit4;
 
 import com.example.android.systemupdatersample.UpdateConfig;
 
-import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.rules.ExpectedException;
@@ -41,16 +38,9 @@
 @SmallTest
 public class UpdateConfigsTest {
 
-    private Context mContext;
-
     @Rule
     public final ExpectedException thrown = ExpectedException.none();
 
-    @Before
-    public void setUp() {
-        mContext = InstrumentationRegistry.getTargetContext();
-    }
-
     @Test
     public void configsToNames_extractsNames() {
         List<UpdateConfig> configs = Arrays.asList(
diff --git a/updater_sample/tools/gen_update_config.py b/updater_sample/tools/gen_update_config.py
index cb9bd01..0578124 100755
--- a/updater_sample/tools/gen_update_config.py
+++ b/updater_sample/tools/gen_update_config.py
@@ -17,7 +17,7 @@
 """
 Given a OTA package file, produces update config JSON file.
 
-Example:  tools/gen_update.config.py \\
+Example:  tools/gen_update_config.py \\
             --ab_install_type=STREAMING \\
             ota-build-001.zip  \\
             my-config-001.json \\