def test_set_recipe():
d = m.DockerClass()
d.set_recipe("recipe")
assert d.recipe == "recipe"
with pytest.raises(ValueError):
d.set_recipe("")
with pytest.raises(TypeError):
d.set_recipe(3)
def test_get_build_command():
d = m.DockerClass()
with pytest.raises(ValueError):
d.get_build_command()
d.set_recipe_name("recipe_name")
with pytest.raises(ValueError):
d.get_build_command()
d.set_image_name("image_name")
assert d.get_build_command(
) == "docker build -t image_name -f recipe_name ."
def test_write_recipe():
d = m.DockerClass()
with pytest.raises(ValueError):
d.write_recipe()
d.set_recipe_name("recipe_name")
with pytest.raises(ValueError):
d.write_recipe()
d.set_recipe("recipe")
d.write_recipe()
with open("recipe_name", "r") as file:
recipe = file.read()
assert recipe == d.recipe
# Clean up
os.remove("recipe_name")
def test_build_image():
image_name = "docker_image_test"
recipe_name = "Dockerfile_test"
recipe = "FROM alpine:3.7\n"
d = m.DockerClass()
d.set_recipe_name(recipe_name)
d.set_image_name(image_name)
d.set_recipe(recipe)
d.write_recipe()
d.build_image()
# Check whether the image is actually created
assert subprocess.check_output(["docker", "images", "-q", image_name],
text=True) != ""
# Clean up
subprocess.run(["docker", "rmi", image_name])
# Note that the base image is not removed, just in case it's being used by others
os.remove(recipe_name)
def test_set_image_name():
d = m.DockerClass()
d.set_image_name("good_name")
assert d.image_name == "good_name"
with pytest.raises(ValueError):
d.set_image_name("bad name")