Dockerized tests are now working and added a flag to toggle showing the test case diff.

Dockerfile

@@ -1,6 +1,8 @@
 FROM rustlang/rust:nightly-alpine3.10
 
-RUN apk --no-cache add bash git npm nodejs
+# findutils needed to replace busybox xargs because it is failing to
+# pass stdin through when using the `-a` flag
+RUN apk --no-cache add bash git npm nodejs findutils
 
 # Create unprivileged user
 RUN addgroup -S duster && adduser -S duster -G duster
@@ -20,3 +22,5 @@ RUN chown -R duster:duster /home/duster/duster
 USER duster
 RUN git clean -dfxq
 RUN cargo build
+RUN npm link dustjs-linkedin
+CMD /home/duster/duster/js/run_compliance_suite.bash

js/run_compliance_suite.bash

@@ -6,6 +6,25 @@ IFS=$'\n\t'
 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 
 failed_count=0
+show_diff=0
+
+while (( "$#" )); do
+    if [ "$1" = "--help" ]; then
+        cat<<EOF
+Runs the full compliance test suite.
+
+Options:
+  --show-diff     Shows the difference between the two dust implementations
+EOF
+        exit 0
+    elif [ "$1" = "--show-diff" ]; then
+        show_diff=1
+    else
+        (>&2 echo "Unrecognized option: $1")
+        exit 1
+    fi
+    shift
+done
 
 while read -r test_group; do
     test_group_name=$(basename "$test_group")
@@ -14,11 +33,13 @@ while read -r test_group; do
         test_case_name=${test_case_file_name%.*}
         set +e
         (
-            if cmp --quiet <(xargs -a <(find "$test_group" -maxdepth 1 -mindepth 1 -type f -name 'main.dust'; find "$test_group" -maxdepth 1 -mindepth 1 -type f -name '*.dust' ! -name 'main.dust') node "$DIR/dustjs_shim.js" < "$test_case") <(xargs -a <(find "$test_group" -maxdepth 1 -mindepth 1 -type f -name 'main.dust'; find "$test_group" -maxdepth 1 -mindepth 1 -type f -name '*.dust' ! -name 'main.dust') "$DIR/../target/debug/duster-cli" < "$test_case"); then
+            if cmp -s <(xargs -a <(find "$test_group" -maxdepth 1 -mindepth 1 -type f -name 'main.dust'; find "$test_group" -maxdepth 1 -mindepth 1 -type f -name '*.dust' ! -name 'main.dust') node "$DIR/dustjs_shim.js" < "$test_case") <(xargs -a <(find "$test_group" -maxdepth 1 -mindepth 1 -type f -name 'main.dust'; find "$test_group" -maxdepth 1 -mindepth 1 -type f -name '*.dust' ! -name 'main.dust') "$DIR/../target/debug/duster-cli" < "$test_case"); then
                 echo "$test_group_name::$test_case_name PASSED"
             else
                 echo "$test_group_name::$test_case_name FAILED"
-                diff <(xargs -a <(find "$test_group" -maxdepth 1 -mindepth 1 -type f -name 'main.dust'; find "$test_group" -maxdepth 1 -mindepth 1 -type f -name '*.dust' ! -name 'main.dust') node "$DIR/dustjs_shim.js" < "$test_case") <(xargs -a <(find "$test_group" -maxdepth 1 -mindepth 1 -type f -name 'main.dust'; find "$test_group" -maxdepth 1 -mindepth 1 -type f -name '*.dust' ! -name 'main.dust') "$DIR/../target/debug/duster-cli" < "$test_case")
+                if [ $show_diff -eq 1 ]; then
+                    diff --label "dustjs-linked" --label "duster" <(xargs -a <(find "$test_group" -maxdepth 1 -mindepth 1 -type f -name 'main.dust'; find "$test_group" -maxdepth 1 -mindepth 1 -type f -name '*.dust' ! -name 'main.dust') node "$DIR/dustjs_shim.js" < "$test_case") <(xargs -a <(find "$test_group" -maxdepth 1 -mindepth 1 -type f -name 'main.dust'; find "$test_group" -maxdepth 1 -mindepth 1 -type f -name '*.dust' ! -name 'main.dust') "$DIR/../target/debug/duster-cli" < "$test_case")
+                fi
                 exit 1
             fi
         )