Add script to run tests locally

The script uses the test_description.json file to get the test
names and the commands to be run.

Signed-off-by: Catalin Dumitru <catdum@amazon.com>

README.md

@@ -294,3 +294,32 @@ pytest rust-vmm-ci/integration_tests/test_benchmark.py -s
 Note that performance is highly dependent on the underlying platform that the
 tests are running on. The raw numbers obtained are likely to differ from their
 counterparts on a CI instance.
+
+### Running the tests locally
+To run the integration tests locally, you can run the following from the crate you need to test.
+You can find the latest container version in the 
+[script](.buildkite/autogenerate_pipeline.py)
+that autogenerates the pipeline. For example:
+```bash
+cd ~/vm-superio
+CRATE="vm-superio"
+LATEST=12
+docker run -it \
+           --security-opt seccomp=unconfined \
+           --volume $(pwd):/${CRATE} \
+           --volume ~/.ssh:/root/.ssh \
+           rustvmm/dev:v${LATEST}
+cd vm-superio
+./rust-vmm-ci/test_run.py
+```
+
+Known issues:
+- When running the `cargo-audit` test, the following error may occur:
+```
+test_cargo-audit (__main__.TestsContainer) ... error: couldn’t fetch advisory database: git operation failed: reference ‘refs/heads/master’ not found; class=Reference (4); code=NotFound (-3)
+```
+  A fix for this is to remove `~/.cargo/advisory-db` in the container, and then rerun `test_run.py`:
+```
+rm -rf ~/.cargo/advisory-db
+./rust-vmm-ci/test_run.py
+```

test_run.py

@@ -0,0 +1,39 @@
+#!/usr/bin/env python3
+
+import json
+import subprocess
+import platform
+import pathlib
+import unittest
+
+PARENT_DIR = pathlib.Path(__file__).parent.resolve()
+
+
+class TestsContainer(unittest.TestCase):
+    pass
+
+
+def make_test_function(command):
+    def test(self):
+        subprocess.run(command, shell=True, check=True)
+    return test
+
+
+def retrieve_test_list(
+    config_file=f"{PARENT_DIR}/.buildkite/test_description.json"
+):
+    with open(config_file) as jsonFile:
+        test_list = json.load(jsonFile)
+        jsonFile.close()
+    return test_list
+
+
+if __name__ == '__main__':
+    test_config = retrieve_test_list()
+    for test in test_config['tests']:
+        command = test['command']
+        command = command.replace("{target_platform}", platform.machine())
+        test_func = make_test_function(command)
+        setattr(TestsContainer, 'test_{}'.format(test['test_name']), test_func)
+
+    unittest.main(verbosity=2)