Convert EXPECT_PRED to ASSERT_PRED in testHelpers
Convert EXPECT_PRED to ASSERT_PRED in testHelpers

arrayfire/arrayfire,9prady9/arrayfire,arrayfire/arrayfire,arrayfire/arrayfire,9prady9/arrayfire,umar456/arrayfire,umar456/arrayfire,umar456/arrayfire,9prady9/arrayfire,arrayfire/arrayfire,9prady9/arrayfire,umar456/arrayfire