diff --git a/tests/helpers.tcl b/tests/helpers.tcl
index 13ae0cb..d5ce82e 100644
--- a/tests/helpers.tcl
+++ b/tests/helpers.tcl
@@ -154,19 +154,14 @@ proc _compare_json {opts j1 j2 {path {}}} { #<<<
 
 #>>>
 proc compare_json args { #<<<
-	parse_args $args {
-		-subset	{-default none}
-		j1		{}
-		j2		{}
-	} opts
-
-	try {
-		_compare_json $opts [dict get $opts j1] [dict get $opts j2]
-	} trap {RL TEST JSON_MISMATCH} {errmsg options} {
-		return $errmsg
-	} on ok {} {
-		return match
-	}
+    set opts [list -subset none j1 [lindex $args 0] j2 [lindex $args 1]]
+    try {
+        _compare_json $opts [dict get $opts j1] [dict get $opts j2]
+    } trap {RL TEST JSON_MISMATCH} {errmsg options} {
+        return $errmsg
+    } on ok {} {
+        return match
+    }
 }
 
 #>>>
diff --git a/tests/number.test b/tests/number.test
index 5d5eda8..bf4ac1c 100644
--- a/tests/number.test
+++ b/tests/number.test
@@ -239,14 +239,14 @@ test number-2.3 {json number, not a number} -body { #<<<
 	list $code $r [dict get $o -errorcode]
 } -cleanup {
 	unset -nocomplain code r o
-} -result [list 1 {can't use non-numeric string "foo" as operand of "+"} {ARITH DOMAIN {non-numeric string}}]
+} -result [list 1 {can't use non-numeric string as operand of "+"} {ARITH DOMAIN {non-numeric string}}]
 #>>>
 test number-2.4 {json number, not a number: empty string} -body { #<<<
 	set code [catch {json number ""} r o]
 	list $code $r [dict get $o -errorcode]
 } -cleanup {
 	unset -nocomplain code r o
-} -result [list 1 {can't use empty string "" as operand of "+"} {ARITH DOMAIN {empty string}}]
+} -result [list 1 {can't use empty string as operand of "+"} {ARITH DOMAIN {empty string}}]
 #>>>
 
 ::tcltest::cleanupTests
diff --git a/tests/pretty.test b/tests/pretty.test
index 1bd6e51..4215b50 100644
--- a/tests/pretty.test
+++ b/tests/pretty.test
@@ -4,8 +4,7 @@ if {"::tcltest" ni [namespace children]} {
 }
 
 package require rl_json
-package require parse_args
-namespace path {::rl_json ::parse_args}
+namespace path {::rl_json}
 
 test pretty-1.1 {Basic pretty-print} -body { #<<<
 	json pretty {{"foo":null,"empty":{},"emptyarr":[],"hello, world":"bar","This is a much longer key":["str",123,123.4,true,false,null,{"inner": "obj"}]}}
diff --git a/tests/set.test b/tests/set.test
index ce5d737..8da79bb 100644
--- a/tests/set.test
+++ b/tests/set.test
@@ -4,8 +4,7 @@ if {"::tcltest" ni [namespace children]} {
 }
 
 package require rl_json
-package require parse_args
-namespace path {::rl_json ::parse_args}
+namespace path {::rl_json}
 
 source [file join [file dirname [info script]] helpers.tcl]
 
diff --git a/tests/unset.test b/tests/unset.test
index 1f0dc34..beb76d9 100644
--- a/tests/unset.test
+++ b/tests/unset.test
@@ -4,8 +4,7 @@ if {"::tcltest" ni [namespace children]} {
 }
 
 package require rl_json
-package require parse_args
-namespace path {::rl_json ::parse_args}
+namespace path {::rl_json}
 
 source [file join [file dirname [info script]] helpers.tcl]