Added start XCTest method with default working directory

Summary: Added startTestRunnerLaunchConfiguration motheod with default working directory set to simulator's auxillary directory

Reviewed By: migchez

Differential Revision: D3138969

fb-gh-sync-id: 5e8c220c80ef5a372a8462e0e5128fe752df7416
fbshipit-source-id: 5e8c220c80ef5a372a8462e0e5128fe752df7416

FBSimulatorControl/Interactions/FBSimulatorInteraction+XCTest.h

@@ -14,6 +14,15 @@
 
 @interface FBSimulatorInteraction (XCTest)
 
+/**
+ Starts testing application using test bundle. It will use simulator's auxillaryDirectory as working directory
+
+ @param configuration configuration used to launch test runner application
+ @param testBundlePath path to XCTest bundle used for testing
+ @return the reciever, for chaining.
+ */
+- (instancetype)startTestRunnerLaunchConfiguration:(FBApplicationLaunchConfiguration *)configuration testBundlePath:(NSString *)testBundlePath;
+
 /**
  Starts testing application using test bundle
 

FBSimulatorControl/Interactions/FBSimulatorInteraction+XCTest.m

@@ -24,6 +24,11 @@
 
 @implementation FBSimulatorInteraction (XCTest)
 
+- (instancetype)startTestRunnerLaunchConfiguration:(FBApplicationLaunchConfiguration *)configuration testBundlePath:(NSString *)testBundlePath
+{
+  return [self startTestRunnerLaunchConfiguration:configuration testBundlePath:testBundlePath workingDirectory:self.simulator.auxillaryDirectory];
+}
+
 - (instancetype)startTestRunnerLaunchConfiguration:(FBApplicationLaunchConfiguration *)configuration testBundlePath:(NSString *)testBundlePath workingDirectory:(NSString *)workingDirectory
 {
   NSParameterAssert(configuration);