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test-ause_cassette_record_modes.R
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test-ause_cassette_record_modes.R
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context("use_cassette: record modes work as expected")
library(crul, quietly = TRUE)
mydir <- file.path(tempdir(), "use_cassette_record_mode")
invisible(vcr_configure(dir = mydir))
conn <- crul::HttpClient$new(hb())
test_that("use_cassette record mode: once", {
# record mode `once`:
# - Replay previously recorded interactions.
# - Record new interactions if there is no cassette file.
# - Cause an error to be raised for new requests if there is a cassette file.
skip_on_cran()
unlink(file.path(vcr_c$dir, "once.yml"))
# record interaction
one <- use_cassette("once", (res <- conn$get("get")), record = "once")
expect_is(one, "Cassette")
expect_is(res, "HttpResponse")
# interaction should replay
# - we know it replayed if it doesn't timeout as timeout only
# used in real request
two <- use_cassette("once", {
res2 <- conn$get("get", timeout_ms = 10)
}, record = "once")
expect_is(two, "Cassette")
expect_equal(length(one$http_interactions_$used_interactions), 0)
expect_equal(length(two$http_interactions_$used_interactions), 1)
expect_equal(length(one$new_recorded_interactions), 1)
expect_equal(length(two$new_recorded_interactions), 0)
expect_identical(res$content, res2$content)
# delete cassette file, new interaction should be recorded successfully
unlink(file.path(vcr_c$dir, "once.yml"))
expect_false(file.exists(file.path(vcr_c$dir, "once.yml")))
three <- use_cassette("once", (res3 <- conn$get("get")),
record = "once")
expect_is(three, "Cassette")
# raise error on attempted NEW INTERACTION on existing cassette file
expect_error(
use_cassette("once", conn$get("get", query = list(foo = "bar")),
record = "once"),
"An HTTP request has been made that vcr does not know how to handle"
)
})
test_that("use_cassette record mode: none", {
# record mode `none`:
# - Replay previously recorded interactions.
# - Cause an error to be raised for any new requests.
skip_on_cran()
unlink(file.path(vcr_c$dir, "none.yml"))
# record first with another record mode to make the cassette
invisible(use_cassette("none", (res <- conn$get("get"))))
# previously recorded interaction should replay
one <- use_cassette("none", (res <- conn$get("get")), record = "none")
expect_is(one, "Cassette")
expect_is(res, "HttpResponse")
# raise error if any NEW INTERACTIONS attempted
# FIXME:
expect_error(
use_cassette("none", conn$get("get", query = list(foo = "bar")),
record = "none"),
"vcr does not know how to handle"
# "The current record mode \\('none'\\) does not"
)
})
test_that("use_cassette record mode: new_episodes", {
# record mode `new_episodes`:
# - Record new interactions.
# - Replay previously recorded interactions.
skip_on_cran()
unlink(file.path(vcr_c$dir, "new_episodes.yml"))
# record first interaction
one <- use_cassette("new_episodes", {
res <- conn$get("get")
}, record = "new_episodes")
expect_is(one, "Cassette")
expect_is(res, "HttpResponse")
one_yml <- yaml::yaml.load_file(file.path(vcr_c$dir, "new_episodes.yml"))
expect_equal(length(one_yml$http_interactions), 1)
# first interaction again, should be played back
one_again <- use_cassette("new_episodes", {
res2 <- conn$get("get")
}, record = "new_episodes")
expect_is(one_again, "Cassette")
expect_is(res2, "HttpResponse")
one_again_yml <- yaml::yaml.load_file(file.path(vcr_c$dir, "new_episodes.yml"))
expect_equal(length(one_again_yml$http_interactions), 1)
# record new interaction, is recorded below first one above
two <- use_cassette("new_episodes", {
res3 <- conn$get("get", query = list(project = "mars-explorer"))
}, record = "new_episodes")
expect_is(two, "Cassette")
expect_is(res3, "HttpResponse")
two_yml <- yaml::yaml.load_file(file.path(vcr_c$dir, "new_episodes.yml"))
expect_equal(length(two_yml$http_interactions), 2)
# first and second interaction again together, both should be played back
yolo <- use_cassette("new_episodes", {
res2_played_back <- conn$get("get")
res3_played_back <- conn$get("get", query = list(project = "mars-explorer"))
}, record = "new_episodes")
expect_is(two, "Cassette")
expect_is(res3, "HttpResponse")
two_yml <- yaml::yaml.load_file(file.path(vcr_c$dir, "new_episodes.yml"))
expect_equal(length(two_yml$http_interactions), 2)
})
test_that("use_cassette record mode: all", {
# record mode `all`:
# - Record new interactions.
# - Never replay previously recorded interactions.
skip_on_cran()
unlink(file.path(vcr_c$dir, "all.yml"))
# record first interaction
one <- use_cassette("all", (res <- conn$get("get")), record = "all")
one_yml <- yaml::yaml.load_file(file.path(vcr_c$dir, "all.yml"))
expect_equal(length(one_yml$http_interactions), 1)
# sleep for a bit to make sure times are at least a second apart
Sys.sleep(1)
# previously recorded interactions do not playback
# - recorded time and response header time have changed
two <- use_cassette("all", (res2 <- conn$get("get")), record = "all")
two_yml <- yaml::yaml.load_file(file.path(vcr_c$dir, "all.yml"))
expect_equal(length(two_yml$http_interactions), 1)
### recorded_at
expect_false(
identical(one_yml$http_interactions[[1]]$recorded_at,
two_yml$http_interactions[[1]]$recorded_at
)
)
expect_true(
two_yml$http_interactions[[1]]$recorded_at >
one_yml$http_interactions[[1]]$recorded_at
)
### response headers date
expect_false(
identical(one_yml$http_interactions[[1]]$response$headers$date,
two_yml$http_interactions[[1]]$response$headers$date
)
)
expect_true(
two_yml$http_interactions[[1]]$response$headers$date >
one_yml$http_interactions[[1]]$response$headers$date
)
# new interactions are recorded
three <- use_cassette("all", {
res3 <- conn$get("get", query = list(cheese = "pepperjack"))
}, record = "all")
three_yml <- yaml::yaml.load_file(file.path(vcr_c$dir, "all.yml"))
expect_equal(length(three_yml$http_interactions), 2)
expect_match(three_yml$http_interactions[[2]]$response$body$string,
"pepperjack")
})
# cleanup
unlink(file.path(vcr_c$dir, "once.yml"))
unlink(file.path(vcr_c$dir, "none.yml"))
unlink(file.path(vcr_c$dir, "new_episodes.yml"))
unlink(file.path(vcr_c$dir, "all.yml"))
# reset configuration
vcr_configure_reset()