[#81] makefile to check for unused test data

This change adds logic to the docker-image-unit-tests to ensure that
code is checked within the container for coverage, valid test data,
and reduces the number of containers created in the gate - reducing
the runtime of each gate.

Relates-To: #81

Change-Id: Iab3d9bd74266d32404e6eb06ecebc234df04fd5c
Signed-off-by: Alexander Hughes <Alexander.Hughes@pm.me>

Dockerfile

@@ -11,7 +11,7 @@ RUN go mod download
 
 COPY . /usr/src/airshipctl/
 ARG MAKE_TARGET=build
-RUN make ${MAKE_TARGET}
+RUN for target in $MAKE_TARGET; do make $target; done
 
 FROM ${RELEASE_IMAGE} as release
 COPY --from=builder /usr/src/airshipctl/bin/airshipctl /usr/local/bin/airshipctl

Makefile

@@ -127,6 +127,11 @@ endif
 print-docker-image-tag:
 	@echo "$(DOCKER_IMAGE)"
 
+.PHONY: docker-image-test-suite
+docker-image-test-suite: DOCKER_MAKE_TARGET = "lint cover update-golden check-git-diff"
+docker-image-test-suite: DOCKER_TARGET_STAGE = builder
+docker-image-test-suite: docker-image
+
 .PHONY: docker-image-unit-tests
 docker-image-unit-tests: DOCKER_MAKE_TARGET = cover
 docker-image-unit-tests: DOCKER_TARGET_STAGE = builder
@@ -176,3 +181,8 @@ update-golden: unit-tests
 .PHONY: delete-golden
 delete-golden:
 	@find . -type f -name "*.golden" -delete
+
+# Used by gates after unit-tests and update-golden targets to ensure no files are deleted.
+.PHONY: check-git-diff
+check-git-diff:
+	@./tools/git_diff_check

playbooks/airship-airshipctl-lint-unit.yaml

@@ -12,16 +12,9 @@
 
 - hosts: primary
   tasks:
-    - name: Run Linter
+    - name: Run Linter, Unit Tests, Verify Golden Testdata
       block:
-        - name: "make docker-image-lint"
+        - name: "make docker-image-test-suite"
           make:
             chdir: "{{ zuul.project.src_dir }}"
-            target: docker-image-lint
-
-    - name: Run Unit Tests
-      block:
-        - name: "make docker-image-unit-tests"
-          make:
-            chdir: "{{ zuul.project.src_dir }}"
-            target: docker-image-unit-tests
+            target: docker-image-test-suite

tools/git_diff_check

@@ -0,0 +1,34 @@
+#!/bin/bash
+
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+# Update git index
+git update-index -q --ignore-submodules --refresh
+
+# Evaluate git files for difference, if found print message and fail.
+git diff-files --quiet --ignore-submodules
+if [ $? -ne 0 ]
+then
+    echo "git diff found modified test cases, please run make update-golden"
+    exit 1
+fi
+
+# Evaluate git index for differences, if found print message and fail.
+git diff-index --cached --quiet --ignore-submodules HEAD --
+if [ $? -ne 0 ]
+then
+    echo "git diff found modified test cases, please run make update-golden"
+    exit 1
+fi
+
+echo "no git diff detected, make target completed successfully"