httptest2 0.1.0

Initial port of httptest to work on top of httr2. All APIs preserved except:

• Mock file hashes and error messages for requests with multipart forms or file uploads have changed. Aside from this, all mock files and file paths recorded by httptest using httr will work with httptest2 and return valid httr2_response objects when loaded.
• Redacting functions are applied to both the httr2_response and httr2_request objects, the latter in order to be able to alter the URL/mock file path being written. You do not need separate “redactors” and “requesters”.
• expect_header() has been renamed to expect_request_header() and takes headers to match by argument name rather than a single string “Header: value”. This allows more flexibility in matching headers, plus the ability to match multiple headers. It also no longer uses warning() to extract the headers, so test failures are cleaner.
• The failure message when an unexpected request is made is more clear and is distinguished from other “errors”. Expected mock file paths are more clearly shown when appropriate, and they are no longer included in the message itself that you would assert in expect_GET(), expect_POST(), et al.
• All options() have been renamed to match the package name (e.g. options(httptest2.verbose))
• With options(httptest2.verbose = TRUE), messages are printed in more places; messages about when a package redactor is called are now only printed if the option is set.

Some functions were removed:

• redact_auth(), which had previously been reduced to an alias for redact_cookies()
• with_fake_http()
• public()
• expect_json_equivalent() (just use testthat::expect_equal(list_as_map = TRUE))
• skip_if_disconnected() (just use testthat::skip_if_offline())
• fake_response() (just use httr2::response())
• gsub_request() and set_requester() (no longer necessary)

Changes to function signatures:

• The path argument to capture_requests() and start_capturing() has been removed; instead set the mock path explicitly with .mockPaths() or use with_mock_dir().
• Internal function save_response() requires a file path argument because httr2_response objects do not contain their request, which is needed to construct the mock file path
• Internal function build_mock_url() no longer accepts a string URL as an input; it only accepts request objects