support/testing: add python-docker test

Python-docker needs a working docker setup to do anything useful, so add it
to the existing docker_compose (which tests docker and docker-compose)
rather than adding a completely new test.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Reviewed-by: Christian Stewart <christian@aperture.us>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit 0bb63c6f5a)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

support/testing/tests/package/sample_python_docker.py

@@ -0,0 +1,12 @@
+import docker
+
+client = docker.from_env()
+info = client.info()
+images = client.images.list()
+
+assert len(images) > 0
+
+print('Version:', info['ServerVersion'])
+print('Images:')
+for i in images:
+    print(i.tags[0])

support/testing/tests/package/test_docker_compose.py

@@ -4,6 +4,8 @@ import infra.basetest
 
 
 class TestDockerCompose(infra.basetest.BRTest):
+    scripts = ["conf/docker-compose.yml",
+               "tests/package/sample_python_docker.py"]
     config = \
         """
         BR2_x86_64=y
@@ -18,6 +20,8 @@ class TestDockerCompose(infra.basetest.BRTest):
         BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.19.262"
         BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
         BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="{}"
+        BR2_PACKAGE_PYTHON3=y
+        BR2_PACKAGE_PYTHON_DOCKER=y
         BR2_PACKAGE_CA_CERTIFICATES=y
         BR2_PACKAGE_DOCKER_CLI=y
         BR2_PACKAGE_DOCKER_COMPOSE=y
@@ -27,7 +31,7 @@ class TestDockerCompose(infra.basetest.BRTest):
         # BR2_TARGET_ROOTFS_TAR is not set
         """.format(
             infra.filepath("tests/package/copy-sample-script-to-target.sh"),
-            infra.filepath("conf/docker-compose.yml"),
+            " ".join([infra.filepath(i) for i in scripts]),
             infra.filepath("conf/docker-compose-kernel.config"))
 
     def wait_for_dockerd(self):
@@ -46,6 +50,9 @@ class TestDockerCompose(infra.basetest.BRTest):
         self.assertRunOk('wget -q -O /tmp/busybox http://127.0.0.1/busybox', 120)
         self.assertRunOk('cmp /bin/busybox /tmp/busybox', 120)
 
+    def python_docker_test(self):
+        self.assertRunOk('python3 ./sample_python_docker.py', 120)
+
     def test_run(self):
         kernel = os.path.join(self.builddir, "images", "bzImage")
         rootfs = os.path.join(self.builddir, "images", "rootfs.ext2")
@@ -62,3 +69,4 @@ class TestDockerCompose(infra.basetest.BRTest):
         self.wait_for_dockerd()
         self.docker_test()
         self.docker_compose_test()
+        self.python_docker_test()