ci: add reusable testing workflow

The idea of this workflow is to be a part of the 'integration.yml'
workflow from the tarantool repo to verify the integration of the
expirationd module with an arbitrary tarantool version.

This workflow is not triggered on a push to the repo and cannot be run
manually since it has only the 'workflow_call' trigger. This workflow
will be included in the tarantool development cycle and called by the
'integration.yml' workflow from the tarantool project on a push to the
master and release branches for verifying integration of tarantool with
expirationd.

Part of tarantool/tarantool#6528
Part of tarantool/tarantool#5265
Part of tarantool/tarantool#6056

.github/workflows/reusable_testing.yml

@@ -0,0 +1,33 @@
+name: reusable_testing
+
+on:
+  workflow_call:
+    inputs:
+      artifact_name:
+        description: 'The name of the tarantool build artifact'
+        default: ubuntu-focal
+        required: false
+        type: string
+
+jobs:
+  run_tests:
+    runs-on: ubuntu-20.04
+    steps:
+      - name: 'Clone the expirationd module'
+        uses: actions/checkout@v2
+        with:
+          repository: ${{ github.repository_owner }}/expirationd
+
+      - name: 'Download the Tarantool build artifact'
+        uses: actions/download-artifact@v2
+        with:
+          name: ${{ inputs.artifact_name }}
+
+      - name: 'Install Tarantool'
+        # TODO(ylobankov): Install package dependencies. Now we're lucky: all
+        # dependencies are already there.
+        run: sudo dpkg -i tarantool*.deb
+
+      - run: make deps
+      - run: make test
+

Makefile

@@ -32,6 +32,10 @@ luacheck:
 
 .PHONY: test
 test:
+	luatest -v
+
+.PHONY: test-coverage
+test-coverage:
 	luatest -v --coverage
 	rm -rf ${CLEANUP_FILES}
 	INDEX_TYPE='TREE' SPACE_TYPE='vinyl' ./test.lua
@@ -41,7 +45,7 @@ test:
 	INDEX_TYPE='TREE' ./test.lua
 	rm -rf ${CLEANUP_FILES}
 
-$(LUACOV_STATS): test
+$(LUACOV_STATS): test-coverage
 
 coverage: $(LUACOV_STATS)
 	sed -i -e 's@'"$$(realpath .)"'/@@' $(LUACOV_STATS)