Add a script to run a single test to make development easier since I often want to focus on one test at a time.

js/run_compliance_suite.bash

@@ -27,27 +27,17 @@ EOF
 done
 
 while read -r test_group; do
-    test_group_name=$(basename "$test_group")
-    while read -r test_case; do
-        test_case_file_name=$(basename "$test_case")
-        test_case_name=${test_case_file_name%.*}
-        set +e
-        (
-            if cmp -s <(xargs -a <(find "$test_group" -maxdepth 1 -mindepth 1 -type f -name 'main.dust'; find "$test_group" -maxdepth 1 -mindepth 1 -type f -name '*.dust' ! -name 'main.dust' | sort) node "$DIR/dustjs_shim.js" < "$test_case") <(xargs -a <(find "$test_group" -maxdepth 1 -mindepth 1 -type f -name 'main.dust'; find "$test_group" -maxdepth 1 -mindepth 1 -type f -name '*.dust' ! -name 'main.dust' | sort) "$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"
-                if [ $show_diff -eq 1 ]; then
-                    diff --label "dustjs-linkedin" --label "duster" <(xargs -a <(find "$test_group" -maxdepth 1 -mindepth 1 -type f -name 'main.dust'; find "$test_group" -maxdepth 1 -mindepth 1 -type f -name '*.dust' ! -name 'main.dust' | sort) node "$DIR/dustjs_shim.js" < "$test_case" 2>/dev/null ) <(xargs -a <(find "$test_group" -maxdepth 1 -mindepth 1 -type f -name 'main.dust'; find "$test_group" -maxdepth 1 -mindepth 1 -type f -name '*.dust' ! -name 'main.dust' | sort) "$DIR/../target/debug/duster-cli" < "$test_case" 2>/dev/null )
-                fi
-                exit 1
-            fi
-        )
-        if [ $? -ne 0 ]; then
-            failed_count=$((failed_count + 1))
-        fi
-        set -e
-    done <<<"$(find "$test_group" -maxdepth 1 -mindepth 1 -type f -name '*.json' | sort)"
+    set +e
+    if [ $show_diff -eq 1 ]; then
+        "$DIR/run_single_test.bash" --show-diff "$test_group"
+    else
+        "$DIR/run_single_test.bash" --show-diff "$test_group"
+    fi
+    result=$?
+    if [ $result -ne 0 ]; then
+        failed_count=$((failed_count + result))
+    fi
+    set -e
 done <<<"$(find "$DIR/test_cases" -maxdepth 1 -mindepth 1 -type d ! -name '_*' | sort)"
 
 ignored_count=$(find "$DIR/test_cases" -maxdepth 1 -mindepth 1 -type d -name '_*' | wc -l)

js/run_single_test.bash

@@ -0,0 +1,78 @@
+#!/usr/bin/env bash
+#
+# Runs a single test against LinkedIn DustJS and duster to compare the result
+set -euo pipefail
+IFS=$'\n\t'
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+test_group=""
+test_mode=""
+
+function show_help {
+    cat<<EOF
+Runs a single test from the compliance test suite.
+
+Usage: run_single_test.bash [options] <path_to_test_folder>
+
+Options:
+  --show-diff     Shows the difference between the two dust implementations
+  --dustjs        Print the output of dustjs instead of comparing
+  --duster        Print the output of duster instead of comparing
+EOF
+}
+
+while (( "$#" )); do
+    if [ "$1" = "--help" ]; then
+        show_help
+        exit 0
+    elif [ "$1" = "--show-diff" ]; then
+        show_diff=1
+    elif [ "$1" = "--dustjs" ]; then
+        test_mode="dustjs"
+    elif [ "$1" = "--duster" ]; then
+        test_mode="duster"
+    elif [ ! "$1" = -* ]; then
+        test_group="$1"
+    else
+        (>&2 echo "Unrecognized option: $1")
+        exit 1
+    fi
+    shift
+done
+
+# Assert a test group was specified
+if [ "$test_group" = "" ]; then
+    show_help
+    exit 1
+fi
+
+failed_count=0
+test_group_name=$(basename "$test_group")
+while read -r test_case; do
+    test_case_file_name=$(basename "$test_case")
+    test_case_name=${test_case_file_name%.*}
+    set +e
+    if [ "$test_mode" = "dustjs" ]; then
+        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' | sort) node "$DIR/dustjs_shim.js" < "$test_case"
+    elif [ "$test_mode" = "duster" ]; then
+        xargs -a <(find "$test_group" -maxdepth 1 -mindepth 1 -type f -name 'main.dust'; find "$test_group" -maxdepth 1 -mindepth 1 -type f -name '*.dust' ! -name 'main.dust' | sort) "$DIR/../target/debug/duster-cli" < "$test_case"
+    else
+        (
+            if cmp -s <(xargs -a <(find "$test_group" -maxdepth 1 -mindepth 1 -type f -name 'main.dust'; find "$test_group" -maxdepth 1 -mindepth 1 -type f -name '*.dust' ! -name 'main.dust' | sort) node "$DIR/dustjs_shim.js" < "$test_case") <(xargs -a <(find "$test_group" -maxdepth 1 -mindepth 1 -type f -name 'main.dust'; find "$test_group" -maxdepth 1 -mindepth 1 -type f -name '*.dust' ! -name 'main.dust' | sort) "$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"
+                if [ $show_diff -eq 1 ]; then
+                    diff --label "dustjs-linkedin" --label "duster" <(xargs -a <(find "$test_group" -maxdepth 1 -mindepth 1 -type f -name 'main.dust'; find "$test_group" -maxdepth 1 -mindepth 1 -type f -name '*.dust' ! -name 'main.dust' | sort) node "$DIR/dustjs_shim.js" < "$test_case" 2>/dev/null ) <(xargs -a <(find "$test_group" -maxdepth 1 -mindepth 1 -type f -name 'main.dust'; find "$test_group" -maxdepth 1 -mindepth 1 -type f -name '*.dust' ! -name 'main.dust' | sort) "$DIR/../target/debug/duster-cli" < "$test_case" 2>/dev/null )
+                fi
+                exit 1
+            fi
+        )
+        if [ $? -ne 0 ]; then
+            failed_count=$((failed_count + 1))
+        fi
+    fi
+    set -e
+done <<<"$(find "$test_group" -maxdepth 1 -mindepth 1 -type f -name '*.json' | sort)"
+
+exit "$failed_count"