Skip py2-cmd tests on Mac

Mac no longer builds python2

Test: prebuilt/build-tools/build-prebuilts.sh on Mac
Change-Id: I5857ba7ec023021e660e86df3573e4b6e3d1902b
diff --git a/python/tests/runtest.sh b/python/tests/runtest.sh
index f4abae5..c44ec58 100755
--- a/python/tests/runtest.sh
+++ b/python/tests/runtest.sh
@@ -24,11 +24,16 @@
 fi
 
 if [[ ( ! -f $ANDROID_HOST_OUT/nativetest64/par_test/par_test ) ||
-      ( ! -f $ANDROID_HOST_OUT/bin/py2-cmd ) ||
       ( ! -f $ANDROID_HOST_OUT/bin/py3-cmd )]]; then
   echo "Run 'm par_test py2-cmd py3-cmd' first"
   exit 1
 fi
+if [ $(uname -s) = Linux ]; then
+  if [[ ! -f $ANDROID_HOST_OUT/bin/py2-cmd ]]; then
+    echo "Run 'm par_test py2-cmd py3-cmd' first"
+    exit 1
+  fi
+fi
 
 export LD_LIBRARY_PATH=$ANDROID_HOST_OUT/lib64
 
@@ -42,11 +47,15 @@
 
 cd $(dirname ${BASH_SOURCE[0]})
 
-PYTHONPATH=/extra $ANDROID_HOST_OUT/bin/py2-cmd py-cmd_test.py
+if [ $(uname -s) = Linux ]; then
+  PYTHONPATH=/extra $ANDROID_HOST_OUT/bin/py2-cmd py-cmd_test.py
+fi
 PYTHONPATH=/extra $ANDROID_HOST_OUT/bin/py3-cmd py-cmd_test.py
 
-ARGTEST=true PYTHONPATH=/extra $ANDROID_HOST_OUT/bin/py2-cmd py-cmd_test.py arg1 arg2
-ARGTEST2=true PYTHONPATH=/extra $ANDROID_HOST_OUT/bin/py2-cmd py-cmd_test.py --arg1 arg2
+if [ $(uname -s) = Linux ]; then
+  ARGTEST=true PYTHONPATH=/extra $ANDROID_HOST_OUT/bin/py2-cmd py-cmd_test.py arg1 arg2
+  ARGTEST2=true PYTHONPATH=/extra $ANDROID_HOST_OUT/bin/py2-cmd py-cmd_test.py --arg1 arg2
+fi
 
 ARGTEST=true PYTHONPATH=/extra $ANDROID_HOST_OUT/bin/py3-cmd py-cmd_test.py arg1 arg2
 ARGTEST2=true PYTHONPATH=/extra $ANDROID_HOST_OUT/bin/py3-cmd py-cmd_test.py --arg1 arg2