Rename Test to make it more readable

Author: JesusRojass

FirebasePerformance/Tests/Unit/FPRScreenTraceTrackerTest.m

@@ -993,7 +993,7 @@ - (void)testSlowFrameIsRecordedWithCustomMaxFPSOnTvOS {
 /** Tests that the epsilon value correctly handles edge cases around 59.94 vs 60 Hz displays.
  *  Frames right at the threshold should not be miscounted due to floating point precision.
  */
-- (void)testSlowFrameEpsilonHandlesBoundaryCases {
+- (void)testSlowFrameRate_isHandled_inEdgeCases {
   [self withStubbedMaxFPS:60
              performBlock:^{
                FPRScreenTraceTracker *testTracker = [self createTestTrackerWithStubbedFPS:60];