Revert unit test coverage changes

.travis.yml

@@ -6,7 +6,6 @@ go:
 
 install:
   - if ! go get code.google.com/p/go.tools/cmd/cover; then go get golang.org/x/tools/cmd/cover; fi
-  - go get github.com/mattn/goveralls
   - ./hack/travis/install-etcd.sh
   - ./hack/verify-gofmt.sh
   - ./hack/verify-boilerplate.sh
@@ -15,7 +14,7 @@ install:
   - ./hack/build-go.sh
 
 script:
-  - KUBE_RACE="-race" KUBE_COVER="y" KUBE_GOVERALLS_BIN="$HOME/gopath/bin/goveralls" KUBE_TIMEOUT='-timeout 60s' ./hack/test-go.sh "" -p=4
+  - KUBE_RACE="-race" KUBE_COVER="-cover -covermode=atomic" KUBE_TIMEOUT='-timeout 60s' ./hack/test-go.sh "" -p=4
   - PATH=$HOME/gopath/bin:./third_party/etcd:$PATH ./hack/test-cmd.sh
   - PATH=$HOME/gopath/bin:./third_party/etcd:$PATH ./hack/verify-gendocs.sh
   - PATH=$HOME/gopath/bin:./third_party/etcd:$PATH ./hack/test-integration.sh

hack/benchmark-go.sh

@@ -20,4 +20,4 @@ set -o pipefail
 
 KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
 
-KUBE_COVER="" KUBE_RACE=" " "${KUBE_ROOT}/hack/test-go.sh" "" -test.run="^X" -benchtime=1s -bench=. -benchmem
+KUBE_COVER=" " KUBE_RACE=" " "${KUBE_ROOT}/hack/test-go.sh" "" -test.run="^X" -benchtime=1s -bench=. -benchmem

hack/test-go.sh

@@ -40,13 +40,14 @@ kube::test::find_dirs() {
   )
 }
 
+kube::test::find_pkgs() {
+  kube::test::find_dirs | xargs -n1 printf "${KUBE_GO_PACKAGE}/%s\n"
+}
+
 # -covermode=atomic becomes default with -race in Go >=1.3
 KUBE_TIMEOUT=${KUBE_TIMEOUT:--timeout 120s}
-KUBE_COVER=${KUBE_COVER:-} # set to nonempty string to enable coverage collection
-KUBE_COVERMODE=${KUBE_COVERMODE:-atomic}
+KUBE_COVER=${KUBE_COVER:-} # use KUBE_COVER="-cover -covermode=atomic" for full coverage
 KUBE_RACE=${KUBE_RACE:-}   # use KUBE_RACE="-race" to enable race testing
-# Set to the goveralls binary path to report coverage results to Coveralls.io.
-KUBE_GOVERALLS_BIN=${KUBE_GOVERALLS_BIN:-}
 
 kube::test::usage() {
   kube::log::usage_from_stdin <<EOF
@@ -103,8 +104,6 @@ for arg; do
 done
 set -- "${testcases[@]+${testcases[@]}}"
 
-# TODO: this should probably be refactored to avoid code duplication with the
-# coverage version.
 if [[ $iterations -gt 1 ]]; then
   if [[ $# -eq 0 ]]; then
     set -- $(kube::test::find_dirs)
@@ -136,56 +135,33 @@ if [[ $iterations -gt 1 ]]; then
   fi
 fi
 
-cover_report_dir=""
-combined_cover_profile=""
-if [[ -n "${KUBE_COVER}" ]]; then
-  cover_report_dir="/tmp/k8s_coverage/$(kube::util::sortable_date)"
-  combined_cover_profile="${cover_report_dir}/combined-coverage.out"
-  kube::log::status "Saving coverage output in '${cover_report_dir}'"
-  mkdir -p ${cover_report_dir}
-  # The combined coverage profile needs to start with a line indicating which
-  # coverage mode was used (set, count, or atomic). This line is included in
-  # each of the coverage profiles generated when running 'go test -cover', but
-  # we strip these lines out when combining so that there's only one.
-  echo "mode: ${KUBE_COVERMODE}" >${combined_cover_profile}
-fi
-
 if [[ -n "${1-}" ]]; then
-  test_dirs=$@
-else
-  test_dirs=$(kube::test::find_dirs)
-fi
-
-# Run all specified tests, optionally collecting coverage if KUBE_COVER is set.
-for arg in ${test_dirs}; do
-  trap 'exit 1' SIGINT
-  pkg=${KUBE_GO_PACKAGE}/${arg}
-
-  cover_params=()
-  cover_profile=""
+  cover_report_dir=""
   if [[ -n "${KUBE_COVER}" ]]; then
-    cover_profile=${cover_report_dir}/${arg}/coverage.out
-    mkdir -p "${cover_report_dir}/${arg}"
-    cover_params=(-cover -covermode="${KUBE_COVERMODE}" -coverprofile="${cover_profile}")
+    cover_report_dir="/tmp/k8s_coverage/$(kube::util::sortable_date)"
+    kube::log::status "Saving coverage output in '${cover_report_dir}'"
   fi
 
-  go test "${goflags[@]:+${goflags[@]}}" \
-      ${KUBE_RACE} \
-      ${KUBE_TIMEOUT} \
-      "${cover_params[@]+${cover_params[@]}}" \
-      "${pkg}"
-  if [[ -f "${cover_profile}" ]]; then
-    # Include all coverage reach data in the combined profile, but exclude the
-    # 'mode' lines, as there should be only one.
-    grep -h -v "^mode:" ${cover_profile} >>${combined_cover_profile} || true
-  fi
-done
+  for arg; do
+    trap 'exit 1' SIGINT
+    pkg=${KUBE_GO_PACKAGE}/${arg}
 
-if [[ -f ${combined_cover_profile} ]]; then
-  coverage_html_file="${cover_report_dir}/combined-coverage.html"
-  go tool cover -html="${combined_cover_profile}" -o="${coverage_html_file}"
-  kube::log::status "Combined coverage report: ${coverage_html_file}"
-  if [[ -x "${KUBE_GOVERALLS_BIN}" ]]; then
-    ${KUBE_GOVERALLS_BIN} -coverprofile="${combined_cover_profile}" || true
-  fi
+    cover_params=()
+    if [[ -n "${KUBE_COVER}" ]]; then
+      mkdir -p "${cover_report_dir}/${arg}"
+      cover_params=(${KUBE_COVER} -coverprofile="${cover_report_dir}/${arg}/coverage.out")
+    fi
+
+    go test "${goflags[@]:+${goflags[@]}}" \
+        ${KUBE_RACE} \
+        ${KUBE_TIMEOUT} \
+        "${cover_params[@]+${cover_params[@]}}" \
+        "${pkg}"
+  done
+  exit 0
 fi
+
+kube::test::find_pkgs | xargs go test "${goflags[@]:+${goflags[@]}}" \
+    ${KUBE_RACE} \
+    ${KUBE_TIMEOUT} \
+    ${KUBE_COVER}