repo2docker/tests/unit/test_cache_from.py

52 wiersze
1.5 KiB
Python

"""
Test that --cache-from is passed in to docker API properly.
"""
from unittest.mock import MagicMock
import docker
from repo2docker.buildpacks import (
BaseImage,
DockerBuildPack,
LegacyBinderDockerBuildPack,
)
def test_cache_from_base(tmpdir):
cache_from = ["image-1:latest"]
fake_log_value = {"stream": "fake"}
fake_client = MagicMock(spec=docker.APIClient)
fake_client.build.return_value = iter([fake_log_value])
extra_build_kwargs = {"somekey": "somevalue"}
# Test base image build pack
tmpdir.chdir()
for line in BaseImage().build(
fake_client, "image-2", 100, {}, cache_from, extra_build_kwargs
):
assert line == fake_log_value
called_args, called_kwargs = fake_client.build.call_args
assert "cache_from" in called_kwargs
assert called_kwargs["cache_from"] == cache_from
def test_cache_from_docker(tmpdir):
cache_from = ["image-1:latest"]
fake_log_value = {"stream": "fake"}
fake_client = MagicMock(spec=docker.APIClient)
fake_client.build.return_value = iter([fake_log_value])
extra_build_kwargs = {"somekey": "somevalue"}
tmpdir.chdir()
# test dockerfile
with tmpdir.join("Dockerfile").open("w") as f:
f.write("FROM scratch\n")
for line in DockerBuildPack().build(
fake_client, "image-2", 100, {}, cache_from, extra_build_kwargs
):
assert line == fake_log_value
called_args, called_kwargs = fake_client.build.call_args
assert "cache_from" in called_kwargs
assert called_kwargs["cache_from"] == cache_from