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-rw-r--r--posix/wordexp-test.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/posix/wordexp-test.c b/posix/wordexp-test.c
index f7a591149b..bae27d6cee 100644
--- a/posix/wordexp-test.c
+++ b/posix/wordexp-test.c
@@ -117,6 +117,8 @@ struct test_case_struct
     { 0, NULL, "$((010+0x10))", 0, 1, { "24" }, IFS },
     { 0, NULL, "$((-010+0x10))", 0, 1, { "8" }, IFS },
     { 0, NULL, "$((-0x10+010))", 0, 1, { "-8" }, IFS },
+    { 0, NULL, "$(())", 0, 1, { "0", }, IFS },
+    { 0, NULL, "$[]", 0, 1, { "0", }, IFS },
 
     /* Advanced parameter expansion */
     { 0, NULL, "${var:-bar}", 0, 1, { "bar", }, IFS },
@@ -138,6 +140,8 @@ struct test_case_struct
     { 0, "12345", "${#var}", 0, 1, { "5", }, IFS },
     { 0, NULL, "${var:-'}'}", 0, 1, { "}", }, IFS },
     { 0, NULL, "${var-}", 0, 0, { NULL }, IFS },
+    { 0, NULL, "${a?}", 0, 0, { NULL, }, IFS },
+    { 0, NULL, "${#a=}", 0, 1, { "0", }, IFS },
 
     { 0, "pizza", "${var#${var}}", 0, 0, { NULL }, IFS },
     { 0, "pepperoni", "${var%$(echo oni)}", 0, 1, { "pepper" }, IFS },