fixup

test/browser/run-test.sh

@@ -7,6 +7,19 @@ git init
 rm -f bots  # common local case: existing bots symlink
 make bots test/common
 
+# support running from clean git tree
+if [ -e .git ]; then
+    # move package.json temporarily otherwise npm might try to install the dependencies from it
+    rm -f package-lock.json  # otherwise the command below installs *everything*, argh
+    mv package.json .package.json
+    # only install a subset to save time/space
+    npm install query-selector-shadow-dom
+    mv .package.json package.json
+else
+    # upstream tarballs ship test dependencies; print version for debugging
+    grep '"version"' node_modules/query-selector-shadow-dom/package.json
+fi
+
 # disable detection of affected tests; testing takes too long as there is no parallelization
 mv .git dot-git