def test_localdockerinterface_get_info_disconnected(emitter, responses):
"""No daemon to talk to (see responses used as fixture but no listening)."""
ldi = LocalDockerdInterface()
resp = ldi.get_image_info("test-digest")
assert resp is None
emitter.assert_trace(
"Cannot connect to /var/run/docker.sock , please ensure dockerd is running."
)
def test_localdockerinterface_get_info_disconnected(caplog, responses):
"""No daemon to talk to (see responses used as fixture but no listening)."""
caplog.set_level(logging.DEBUG, logger="charmcraft")
ldi = LocalDockerdInterface()
resp = ldi.get_image_info("test-digest")
assert resp is None
expected = [
"Cannot connect to /var/run/docker.sock , please ensure dockerd is running.",
]
assert expected == [rec.message for rec in caplog.records]
def test_localdockerinterface_get_info_bad_response(responses, emitter):
"""Docker answered badly when checking for the image."""
# weird dockerd behaviour
responses.add(
responses.GET,
LocalDockerdInterface.dockerd_socket_baseurl +
"/images/test-digest/json",
status=500,
)
ldi = LocalDockerdInterface()
resp = ldi.get_image_info("test-digest")
assert resp is None
emitter.assert_trace("Bad response when validation local image: 500")
def test_localdockerinterface_get_info_not_found(responses, emitter):
"""Get image info for something that is not there."""
# return 404, which means that the image was not found
responses.add(
responses.GET,
LocalDockerdInterface.dockerd_socket_baseurl +
"/images/test-digest/json",
status=404,
)
ldi = LocalDockerdInterface()
resp = ldi.get_image_info("test-digest")
assert resp is None
emitter.assert_interactions(None)
def test_localdockerinterface_get_info_ok(responses, emitter):
"""Get image info ok."""
test_image_info = {"some": "stuff"}
responses.add(
responses.GET,
LocalDockerdInterface.dockerd_socket_baseurl +
"/images/test-digest/json",
json=test_image_info,
)
ldi = LocalDockerdInterface()
resp = ldi.get_image_info("test-digest")
assert resp == test_image_info
emitter.assert_interactions(None)
def test_localdockerinterface_get_info_not_found(responses, caplog):
"""Get image info for something that is not there."""
caplog.set_level(logging.DEBUG, logger="charmcraft")
# return 404, which means that the image was not found
responses.add(
responses.GET,
LocalDockerdInterface.dockerd_socket_baseurl +
"/images/test-digest/json",
status=404,
)
ldi = LocalDockerdInterface()
resp = ldi.get_image_info("test-digest")
assert resp is None
assert not caplog.records
def test_localdockerinterface_get_info_ok(responses, caplog):
"""Get image info ok."""
caplog.set_level(logging.DEBUG, logger="charmcraft")
test_image_info = {"some": "stuff"}
responses.add(
responses.GET,
LocalDockerdInterface.dockerd_socket_baseurl +
"/images/test-digest/json",
json=test_image_info,
)
ldi = LocalDockerdInterface()
resp = ldi.get_image_info("test-digest")
assert resp == test_image_info
assert not caplog.records
def test_localdockerinterface_get_streamed_content(responses):
"""Get the content streamed."""
test_content = b"123456789"
responses.add(
responses.GET,
LocalDockerdInterface.dockerd_socket_baseurl +
"/images/test-digest/get",
body=test_content,
stream=True,
)
ldi = LocalDockerdInterface()
resp = ldi.get_streamed_image_content("test-digest")
streamed = resp.iter_content(5)
assert next(streamed) == b"12345"
assert next(streamed) == b"6789"
with pytest.raises(StopIteration):
next(streamed)
def test_localdockerinterface_get_info_bad_response(responses, caplog):
"""Docker answered badly when checking for the image."""
caplog.set_level(logging.DEBUG, logger="charmcraft")
# weird dockerd behaviour
responses.add(
responses.GET,
LocalDockerdInterface.dockerd_socket_baseurl +
"/images/test-digest/json",
status=500,
)
ldi = LocalDockerdInterface()
resp = ldi.get_image_info("test-digest")
assert resp is None
expected = [
"Bad response when validation local image: 500",
]
assert expected == [rec.message for rec in caplog.records]