github/workflows: Add workflow to run package tests.

All of the runable package tests are run together in the new `tools/ci.sh`
function called `ci_package_tests_run`.  This is added to a new GitHub
workflow to test the packages as part of CI.

Some packages use `unittest` while others use an ad-hoc test script.
Eventually it would be good to unify all the package tests to use
`unittest`.

Signed-off-by: Damien George <damien@micropython.org>

.github/workflows/package_tests.yml

@@ -0,0 +1,16 @@
+name: Package tests
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - uses: actions/setup-python@v4
+    - name: Setup environment
+      run: source tools/ci.sh && ci_package_tests_setup_micropython
+    - name: Setup libraries
+      run: source tools/ci.sh && ci_package_tests_setup_lib
+    - name: Run tests
+      run: source tools/ci.sh && ci_package_tests_run

tools/ci.sh

@@ -1,5 +1,7 @@
 #!/bin/bash
 
+CP=/bin/cp
+
 ########################################################################################
 # commit formatting
 
@@ -12,6 +14,92 @@ function ci_commit_formatting_run {
     tools/verifygitlog.py -v upstream/master..HEAD --no-merges
 }
 
+########################################################################################
+# package tests
+
+MICROPYTHON=/tmp/micropython/ports/unix/build-standard/micropython
+
+function ci_package_tests_setup_micropython {
+    git clone https://github.com/micropython/micropython.git /tmp/micropython
+
+    # build mpy-cross and micropython (use -O0 to speed up the build)
+    make -C /tmp/micropython/mpy-cross -j CFLAGS_EXTRA=-O0
+    make -C /tmp/micropython/ports/unix submodules
+    make -C /tmp/micropython/ports/unix -j CFLAGS_EXTRA=-O0
+}
+
+function ci_package_tests_setup_lib {
+    mkdir -p ~/.micropython/lib
+    $CP micropython/ucontextlib/ucontextlib.py ~/.micropython/lib/
+    $CP python-stdlib/fnmatch/fnmatch.py ~/.micropython/lib/
+    $CP -r python-stdlib/hashlib-core/hashlib ~/.micropython/lib/
+    $CP -r python-stdlib/hashlib-sha224/hashlib ~/.micropython/lib/
+    $CP -r python-stdlib/hashlib-sha256/hashlib ~/.micropython/lib/
+    $CP -r python-stdlib/hashlib-sha384/hashlib ~/.micropython/lib/
+    $CP -r python-stdlib/hashlib-sha512/hashlib ~/.micropython/lib/
+    $CP python-stdlib/shutil/shutil.py ~/.micropython/lib/
+    $CP python-stdlib/tempfile/tempfile.py ~/.micropython/lib/
+    $CP -r python-stdlib/unittest/unittest ~/.micropython/lib/
+    $CP -r python-stdlib/unittest-discover/unittest ~/.micropython/lib/
+    $CP unix-ffi/ffilib/ffilib.py ~/.micropython/lib/
+    tree ~/.micropython
+}
+
+function ci_package_tests_run {
+    for test in \
+        micropython/drivers/storage/sdcard/sdtest.py \
+        micropython/xmltok/test_xmltok.py \
+        python-ecosys/requests/test_requests.py \
+        python-stdlib/argparse/test_argparse.py \
+        python-stdlib/base64/test_base64.py \
+        python-stdlib/binascii/test_binascii.py \
+        python-stdlib/collections-defaultdict/test_defaultdict.py \
+        python-stdlib/functools/test_partial.py \
+        python-stdlib/functools/test_reduce.py \
+        python-stdlib/heapq/test_heapq.py \
+        python-stdlib/hmac/test_hmac.py \
+        python-stdlib/itertools/test_itertools.py \
+        python-stdlib/operator/test_operator.py \
+        python-stdlib/os-path/test_path.py \
+        python-stdlib/pickle/test_pickle.py \
+        python-stdlib/string/test_translate.py \
+        unix-ffi/gettext/test_gettext.py \
+        unix-ffi/pwd/test_getpwnam.py \
+        unix-ffi/re/test_re.py \
+        unix-ffi/time/test_strftime.py \
+        ; do
+        echo "Running test $test"
+        (cd `dirname $test` && $MICROPYTHON `basename $test`)
+        if [ $? -ne 0 ]; then
+            false # make this function return an error code
+            return
+        fi
+    done
+
+    for path in \
+        micropython/ucontextlib \
+        python-stdlib/contextlib \
+        python-stdlib/datetime \
+        python-stdlib/fnmatch \
+        python-stdlib/hashlib \
+        python-stdlib/pathlib \
+        python-stdlib/quopri \
+        python-stdlib/shutil \
+        python-stdlib/tempfile \
+        python-stdlib/time \
+        python-stdlib/unittest-discover/tests \
+        ; do
+        (cd $path && $MICROPYTHON -m unittest)
+        if [ $? -ne 0 ]; then false; return; fi
+    done
+
+    (cd micropython/usb/usb-device && $MICROPYTHON -m tests.test_core_buffer)
+    if [ $? -ne 0 ]; then false; return; fi
+
+    (cd python-ecosys/cbor2 && $MICROPYTHON -m examples.cbor_test)
+    if [ $? -ne 0 ]; then false; return; fi
+}
+
 ########################################################################################
 # build packages