How do you write unit tests for Parse?

This is my query. It's inside of the Tests target. And I set the applicationID and clientKey inside of AppDelegate.swift.

I put a breakpoint in AppDelegate.swift, so that is definitely getting hit when I run the test. It also hit the breakpoint I set before line 5 of the code below (customer.saveinbackgroundWithBlock...). But when I put a breakpoint right after that line, it wouldn't hit it, and the test would "succeed." Also, the Parse Dashboard shows that no customer was added.

I tested the same query in the normal app target, and that worked. Just not in test target.

func testCustomersExistCase() {
    // Save a test customer
    let customer = Customer(firstName: "Jonathan", lastName: "Goldsmith", email: "theMostInterestingManInTheWorld@en.wikipedia.org", streetAddress: "100 Main St", city: "Monterrey", state: "Texas", zipCode: "55555")
    customer.shopID = "dosequis"

    customer.saveInBackgroundWithBlock({
        (success: Bool, error: NSError?) -> Void in
            if success {
                print("This test should work.")
                self.customerSearchViewControllerDataSource.getAllCustomers(self.customeSearchViewController)

                // Check if it's in the customers array
                for customerResult in self.customeSearchViewController.data! {
                    if customerResult.objectId == customer.objectId {
                        XCTAssertTrue(true, "Success! Customer was added.")

                        // Delete customer if test had succeeded.
                        customer.deleteInBackgroundWithBlock({
                            (success: Bool, error: NSError?) -> Void in
                            if success {
                                print("Clean-up after test was successful")
                            } else {
                                print("Need to delete customer manually")
                            }
                        })
                    } else {
                        XCTAssertTrue(false, "Query is broken. Customer was not retrieved")
                    }
                }
            } else {
                print("This test will not work. Customer was not added to Parse")
            }
        if error != nil {
            print("This test isn't working. Parse threw an error.")
        }
    })
}

}