bpf,test: Disable coverage reports for some tests

Disable coverage report for some tests affected by Coverbee's bug.

cilium/coverbee#7

Signed-off-by: Yutaro Hayakawa <yutaro.hayakawa@isovalent.com>

.github/workflows/lint-bpf-checks.yaml

@@ -150,8 +150,12 @@ jobs:
           persist-credentials: false
           fetch-depth: 0
       - name: Run BPF tests with code coverage reporting
+        env:
+          # Disable coverage report for these test cases since they are hitting
+          # https://github.com/cilium/coverbee/issues/7
+          NOCOVER_PATTERN: "inter_cluster_snat_clusterip.*|session_affinity_test.o|tc_egressgw_redirect.o|tc_egressgw_snat.o|tc_nodeport_lb4_dsr_backend.o|tc_nodeport_lb4_dsr_lb.o|tc_nodeport_lb4_nat_backend.o|tc_nodeport_lb4_nat_lb.o|xdp_nodeport_lb4_dsr_lb.o|xdp_nodeport_lb4_nat_backend.o|xdp_nodeport_lb4_nat_lb.o|xdp_nodeport_lb4_test.o"
         run: |
-          make -C test run_bpf_tests COVER=1 || (echo "Run 'make -C test run_bpf_tests COVER=1' locally to investigate failures"; exit 1)
+          make -C test run_bpf_tests COVER=1 NOCOVER="$NOCOVER_PATTERN" || (echo "Run 'make -C test run_bpf_tests COVER=1 NOCOVER=\"$NOCOVER_PATTERN\"' locally to investigate failures"; exit 1)
       - name: Archive code coverage results
         uses: actions/upload-artifact@0b7f8abb1508181956e8e162db84b466c27e18ce # v3.1.2
         with:

test/Makefile

@@ -79,6 +79,9 @@ ifeq ($(COVER),1)
 		COVERFORMAT:=html
 	endif
     BPF_TEST_FLAGS += -coverage-report $(ROOT_DIR)/bpf-coverage.$(COVERFORMAT) -coverage-format $(COVERFORMAT)
+ifdef NOCOVER
+    BPF_TEST_FLAGS += -no-test-coverage "$(NOCOVER)"
+endif
 endif
 ifeq ($(INSTRLOG),1)
     BPF_TEST_FLAGS += -instrumentation-log $(ROOT_DIR)/test/bpf-instrumentation.log