From f32f83727bd2cef39998bcc9e74653d3a5ccd18f Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@tavianator.com>
Date: Sun, 16 Apr 2017 12:18:16 -0400
Subject: tests.sh: Allow individual tests to be specified on the command line

---
 tests.sh | 26 ++++++++++++++++----------
 1 file changed, 16 insertions(+), 10 deletions(-)

diff --git a/tests.sh b/tests.sh
index 61aab2a..5fed800 100755
--- a/tests.sh
+++ b/tests.sh
@@ -324,6 +324,12 @@ BSD=yes
 GNU=yes
 ALL=yes
 
+function enable_tests() {
+    for test; do
+        eval run_$test=yes
+    done
+}
+
 for arg; do
     case "$arg" in
         --bfs=*)
@@ -352,6 +358,10 @@ for arg; do
         --update)
             UPDATE=yes
             ;;
+        test_*)
+            EXPLICIT=yes
+            enable_tests "$arg"
+            ;;
         *)
             echo "Unrecognized option '$arg'." >&2
             exit 1
@@ -359,16 +369,12 @@ for arg; do
     esac
 done
 
-function enable_tests() {
-    for test; do
-        eval run_$test=yes
-    done
-}
-
-enable_tests "${posix_tests[@]}"
-[ "$BSD" ] && enable_tests "${bsd_tests[@]}"
-[ "$GNU" ] && enable_tests "${gnu_tests[@]}"
-[ "$ALL" ] && enable_tests "${bfs_tests[@]}"
+if [ -z "$EXPLICIT" ]; then
+    enable_tests "${posix_tests[@]}"
+    [ "$BSD" ] && enable_tests "${bsd_tests[@]}"
+    [ "$GNU" ] && enable_tests "${gnu_tests[@]}"
+    [ "$ALL" ] && enable_tests "${bfs_tests[@]}"
+fi
 
 function bfs_sort() {
     awk -F/ '{ print NF - 1 " " $0 }' | sort -n | cut -d' ' -f2-
-- 
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