Function TestZstdCommit

cmd/nerdctl/container/container_commit_test.go:94–141

(t *testing.T)

}

func TestZstdCommit(t *testing.T) {
	testCase := nerdtest.Setup()
	testCase.Require = require.All(
		// FIXME: Docker  does not support compression
		require.Not(nerdtest.Docker),
		nerdtest.ContainerdVersion("2.0.0"),
		nerdtest.CGroup,
	)
	testCase.Cleanup = func(data test.Data, helpers test.Helpers) {
		helpers.Anyhow("rm", "-f", data.Identifier())
		helpers.Anyhow("rmi", "-f", data.Identifier("image"))
	}
	testCase.Setup = func(data test.Data, helpers test.Helpers) {
		identifier := data.Identifier()
		helpers.Ensure("run", "-d", "--name", identifier, testutil.CommonImage, "sleep", nerdtest.Infinity)
		nerdtest.EnsureContainerStarted(helpers, identifier)
		helpers.Ensure("exec", identifier, "sh", "-euxc", `echo hello-test-commit > /foo`)
		helpers.Ensure("commit", identifier, data.Identifier("image"), "--compression=zstd")
		data.Labels().Set("image", data.Identifier("image"))
	}

	testCase.SubTests = []*test.Case{
		{
			Description: "verify zstd has been used",
			Command: func(data test.Data, helpers test.Helpers) test.TestableCommand {
				return helpers.Command("image", "inspect", "--mode=native", data.Labels().Get("image"))
			},
			Expected: func(data test.Data, helpers test.Helpers) *test.Expected {
				return &test.Expected{
					ExitCode: 0,
					Output: expect.JSON([]native.Image{}, func(images []native.Image, t tig.T) {
						assert.Equal(t, len(images), 1)
						assert.Equal(helpers.T(), images[0].Manifest.Layers[len(images[0].Manifest.Layers)-1].MediaType, "application/vnd.docker.image.rootfs.diff.tar.zstd")
					}),
				}
			},
		},
		{
			Description: "verify the image is working",
			Command: func(data test.Data, helpers test.Helpers) test.TestableCommand {
				return helpers.Command("run", "--rm", data.Labels().Get("image"), "sh", "-c", "--", "cat /foo")
			},
			Expected: test.Expects(0, nil, expect.Equals("hello-test-commit\n")),
		},
	}

	testCase.Run(t)
}