adbd: add unit tests to coverage report.

Test: ./coverage.sh
Change-Id: I268367b857efc2125c6714a1d0b0e874fa8d143d

coverage.sh

@@ -15,15 +15,33 @@
 
 set -euxo pipefail
 
+ADB_TESTS="adbd_test adb_crypto_test adb_pairing_auth_test adb_pairing_connection_test adb_tls_connection_test"
+
+TRACEDIR=`mktemp -d`
+
 adb root
+
+### Run the adb unit tests and fetch traces from them.
+mkdir "$TRACEDIR"/test_traces
+adb shell rm -rf /data/local/tmp/adb_coverage
+adb shell mkdir /data/local/tmp/adb_coverage
+
+for TEST in $ADB_TESTS; do
+  adb shell LLVM_PROFILE_FILE=/data/local/tmp/adb_coverage/$TEST.profraw /data/nativetest64/$TEST/$TEST
+  adb pull /data/local/tmp/adb_coverage/$TEST.profraw "$TRACEDIR"/test_traces/
+done
+
+adb pull /data/local/tmp/adb_coverage "$TRACEDIR"/test_traces
+
+### Run test_device.py, and fetch traces from adbd itself.
 adb shell logcat -c -G128M
 adb shell setprop persist.adb.trace_mask 1
 adb shell killall adbd
 
 # TODO: Add `adb transport-id` and wait-for-offline on it.
 sleep 5
 
-adb wait-for-device shell rm "/data/misc/trace/*"
+adb wait-for-device shell rm -rf "/data/misc/trace/*" /data/local/tmp/adb_coverage/
 
 ./test_device.py
 
@@ -33,11 +51,9 @@ adb shell killall -37 adbd
 echo Waiting for adbd to finish dumping traces
 sleep 5
 
-TRACEDIR=`mktemp -d`
 adb pull /data/misc/trace "$TRACEDIR"/
 echo Pulled traces to $TRACEDIR
 
-
 # Identify which of the trace files are actually adbd, in case something else exited simultaneously.
 ADBD_PIDS=$(adb shell "logcat -d -s adbd --format=process | grep 'adbd started' | cut -c 3-7 | tr -d ' ' | sort | uniq")
 mkdir "$TRACEDIR"/adbd_traces
@@ -48,16 +64,25 @@ IFS=$'\n'
 for PID in $ADBD_PIDS; do
   cp "$TRACEDIR"/trace/clang-$PID-*.profraw "$TRACEDIR"/adbd_traces 2>/dev/null || true
 done
+unset IFS
+
+ADB_TEST_BINARIES=""
+for TEST in $ADB_TESTS; do
+  ADB_TEST_BINARIES="--object=$ANDROID_PRODUCT_OUT/data/nativetest64/$TEST/$TEST $ADB_TEST_BINARIES"
+done
 
-llvm-profdata merge --output="$TRACEDIR"/adbd.profdata "$TRACEDIR"/adbd_traces/*
+### Merge the traces and generate a report.
+llvm-profdata merge --output="$TRACEDIR"/adbd.profdata "$TRACEDIR"/adbd_traces/* "$TRACEDIR"/test_traces/*
 
 cd $ANDROID_BUILD_TOP
 llvm-cov report --instr-profile="$TRACEDIR"/adbd.profdata \
   $ANDROID_PRODUCT_OUT/apex/com.android.adbd/bin/adbd \
   --show-region-summary=false \
-  /proc/self/cwd/system/core/adb
+  /proc/self/cwd/system/core/adb \
+  $ADB_TEST_BINARIES
 
 llvm-cov show --instr-profile="$TRACEDIR"/adbd.profdata \
   $ANDROID_PRODUCT_OUT/apex/com.android.adbd/bin/adbd \
   --format=html \
-  /proc/self/cwd/system/core/adb > $TRACEDIR/report.html
+  /proc/self/cwd/system/core/adb \
+  $ADB_TEST_BINARIES > $TRACEDIR/report.html