def test_mran_date(tmpdir, runtime, expected):
tmpdir.chdir()
with open("runtime.txt", "w") as f:
f.write(runtime)
r = buildpacks.RBuildPack()
assert r.checkpoint_date == date(*expected)
def test_version_completion(tmpdir):
tmpdir.chdir()
with open("runtime.txt", "w") as f:
f.write(f"r-3.6-2019-01-01")
r = buildpacks.RBuildPack()
assert r.r_version == "3.6.3-1bionic"
def test_install_from_base(tmpdir):
# check that for R==3.4 we install from ubuntu
tmpdir.chdir()
with open("runtime.txt", "w") as f:
f.write("r-3.4-2019-01-02")
r = buildpacks.RBuildPack()
assert "r-base" in r.get_packages()
def test_install_from_ppa(tmpdir):
# check that for R>3.4 we don't install r-base from Ubuntu
tmpdir.chdir()
with open("runtime.txt", "w") as f:
f.write("r-3.5-2019-01-02")
r = buildpacks.RBuildPack()
assert "r-base" not in r.get_packages()
def test_version_specification(tmpdir, runtime_version, expected):
tmpdir.chdir()
with open("runtime.txt", "w") as f:
if runtime_version:
runtime_version += "-"
f.write(f"r-{runtime_version}2019-01-01")
r = buildpacks.RBuildPack()
assert r.r_version.startswith(expected)
def test_unsupported_version(tmpdir):
tmpdir.chdir()
with open("runtime.txt", "w") as f:
f.write("r-3.8-2019-01-01")
r = buildpacks.RBuildPack()
with pytest.raises(ValueError) as excinfo:
# access the property to trigger the exception
_ = r.r_version
# check the version is mentioned in the exception
assert "'3.8'" in str(excinfo.value)
def test_snapshot_mran_date(requested, expected):
def mock_request_head(url):
r = Response()
if url == "https://mran.microsoft.com/snapshot/" + expected.isoformat():
r.status_code = 200
else:
r.status_code = 404
r.reason = "Mock MRAN no snapshot"
return r
with patch("requests.head", side_effect=mock_request_head):
r = buildpacks.RBuildPack()
assert r.get_mran_snapshot_url(
requested
) == "https://mran.microsoft.com/snapshot/{}".format(expected.isoformat())
def test_combine_preassemble_steps(tmpdir, binder_dir):
tmpdir.chdir()
if binder_dir:
os.mkdir(binder_dir)
# create two empty files for the build pack to use for pre-assembly
open(os.path.join(binder_dir, "requirements.txt"), "w").close()
open(os.path.join(binder_dir, "install.R"), "w").close()
# trigger R build pack detection
with open(os.path.join(binder_dir, "runtime.txt"), "w") as f:
f.write("r-2019-01-30")
bp = buildpacks.RBuildPack()
files = bp.get_preassemble_script_files()
assert len(files) == 2
assert os.path.join(binder_dir, "requirements.txt") in files
assert os.path.join(binder_dir, "install.R") in files
def test_mran_latestdate(tmpdir, expected):
def mock_request_head(url):
r = Response()
if url == "https://mran.microsoft.com/snapshot/" + expected:
r.status_code = 200
else:
r.status_code = 404
r.reason = "Mock MRAN no snapshot"
return r
tmpdir.chdir()
with open("DESCRIPTION", "w") as f:
f.write("")
with patch("requests.head", side_effect=mock_request_head):
with patch("datetime.date") as mockdate:
mockdate.today.return_value = date(2019, 12, 31)
r = buildpacks.RBuildPack()
r.detect()
assert r.checkpoint_date.isoformat() == expected
def test_snapshot_rspm_date():
test_dates = {
# Even though there is no snapshot specified in the interface at https://packagemanager.rstudio.com/client/#/repos/1/overview
# For 2021 Oct 22, the API still returns a valid URL that one can install
# packages from - probably some server side magic that repeats our client side logic.
# No snapshot for this date from
date(2021, 10, 22): date(2021, 10, 22),
# Snapshot exists for this date
date(2022, 1, 1): date(2022, 1, 1),
}
r = buildpacks.RBuildPack()
for requested, expected in test_dates.items():
snapshot_url = r.get_rspm_snapshot_url(requested)
assert snapshot_url.startswith(
"https://packagemanager.rstudio.com/all/__linux__/bionic/"
+ expected.strftime("%Y-%m-%d")
)
with pytest.raises(ValueError):
r.get_rspm_snapshot_url(date(1691, 9, 5))
def test_custom_ppa(tmpdir):
tmpdir.chdir()
with open("runtime.txt", "w") as f:
f.write("r-3.5-2019-01-02")
r = buildpacks.RBuildPack()
scripts = r.get_build_scripts()
# check that at least one of the build scripts adds this new PPA
for user, script in scripts:
if "https://cloud.r-project.org/bin/linux/ubuntu bionic-cran35/" in script:
break
else:
assert False, "Should have added a new PPA"
# check that we install the right package
for user, script in scripts:
if "r-base=3.5" in script:
break
else:
assert False, "Should have installed base R"
