Assert will assert that the data matches what is in the golden file.

GetGoldenFilePath will typically return the path in the form ./testdata/golden/<sub-test-name>/<table_driven_test_name>.json However, if the test is not run in a subtest or table driven test, the path may differ.

PopulateGoldenFiles will write golden files to the according path returned from the GetGoldenFilePath function.