Minor test script improvements.

tests/emscripten/test.sh

@@ -7,7 +7,7 @@ configuration=debug
 platform=x64
 jsinterp=node
 
-if [ $CI = "true" ]; then
+if [ "$CI" = "true" ]; then
     red=""
     green=""
     reset=""

tests/napi/test.sh

@@ -5,7 +5,7 @@ rootdir="$dir/../.."
 configuration=Release
 platform=x64
 
-if [ $CI = "true" ]; then
+if [ "$CI" = "true" ]; then
     red=""
     green=""
     reset=""

tests/quickjs/test.sh

@@ -35,5 +35,4 @@ echo
 
 echo "${green}Executing JS tests with QuickJS${reset}"
 cp $dir/gen/bin/$configuration/libtest.so $dir
-#cp $dir/gen/bin/$configuration/libtest.dylib $dir
 $jsinterp --std $dir/test.js

tests/ts/test.sh

@@ -7,7 +7,7 @@ configuration=debug
 platform=x64
 jsinterp="$rootdir/deps/quickjs/qjs-debug"
 
-if [ $CI = "true" ]; then
+if [ "$CI" = "true" ]; then
     red=""
     green=""
     reset=""