1 files changed, 30 insertions, 3 deletions
diff --git a/test-runner/android/test/InstrumentationTestRunner.java b/test-runner/android/test/InstrumentationTestRunner.java
index 8b8d472..f038612 100644
--- a/test-runner/android/test/InstrumentationTestRunner.java
+++ b/test-runner/android/test/InstrumentationTestRunner.java
@@ -148,6 +148,8 @@ public class InstrumentationTestRunner extends Instrumentation implements TestSu
     public static final String ARGUMENT_TEST_SIZE_PREDICATE = "size";
     /** @hide */
     public static final String ARGUMENT_INCLUDE_PERF = "perf";
+    /** @hide */
+    public static final String ARGUMENT_DELAY_MSEC = "delay_msec";
 
     private static final String SMALL_SUITE = "small";
     private static final String MEDIUM_SUITE = "medium";  
@@ -249,6 +251,7 @@ public class InstrumentationTestRunner extends Instrumentation implements TestSu
     private String mPackageOfTests;
     private boolean mCoverage;
     private String mCoverageFilePath;
+    private int mDelayMsec;
 
     @Override
     public void onCreate(Bundle arguments) {
@@ -277,11 +280,18 @@ public class InstrumentationTestRunner extends Instrumentation implements TestSu
             logOnly = getBooleanArgument(arguments, ARGUMENT_LOG_ONLY);
             mCoverage = getBooleanArgument(arguments, "coverage");
             mCoverageFilePath = arguments.getString("coverageFile");
+
+            try {
+                Object delay = arguments.get(ARGUMENT_DELAY_MSEC);  // Accept either string or int
+                if (delay != null) mDelayMsec = Integer.parseInt(delay.toString());
+            } catch (NumberFormatException e) {
+                Log.e(LOG_TAG, "Invalid delay_msec parameter", e);
+            }
         }
-        
+
         TestSuiteBuilder testSuiteBuilder = new TestSuiteBuilder(getClass().getName(),
                 getTargetContext().getClassLoader());
-        
+
         if (testSizePredicate != null) {
             testSuiteBuilder.addRequirements(testSizePredicate);
         }
@@ -600,6 +610,18 @@ public class InstrumentationTestRunner extends Instrumentation implements TestSu
             } else {
                 mTestResult.putString(Instrumentation.REPORT_KEY_STREAMRESULT, "");
             }
+
+            // The delay_msec parameter is normally used to provide buffers of idle time
+            // for power measurement purposes.  To make sure there is a delay before and after
+            // every test in a suite, we delay *after* every test (see endTest below) and also
+            // delay *before* the first test.  So, delay test1 delay test2 delay.
+
+            try {
+                if (mTestNum == 1) Thread.sleep(mDelayMsec);
+            } catch (InterruptedException e) {
+                throw new IllegalStateException(e);
+            }
+
             sendStatus(REPORT_VALUE_RESULT_START, mTestResult);
             mTestResultCode = 0;
         }
@@ -636,10 +658,15 @@ public class InstrumentationTestRunner extends Instrumentation implements TestSu
                 mTestResult.putString(Instrumentation.REPORT_KEY_STREAMRESULT, ".");
             }
             sendStatus(mTestResultCode, mTestResult);
+
+            try {  // Sleep after every test, if specified
+                Thread.sleep(mDelayMsec);
+            } catch (InterruptedException e) {
+                throw new IllegalStateException(e);
+            }
         }
 
         // TODO report the end of the cycle
         // TODO report runtime for each test
     }
 }
-