diff --git a/collects/tests/typed-scheme/succeed/strings.rkt b/collects/tests/typed-scheme/succeed/strings.rkt
deleted file mode 100644
index 280dd410d5..0000000000
--- a/collects/tests/typed-scheme/succeed/strings.rkt
+++ /dev/null
@@ -1,75 +0,0 @@
-#lang typed/racket
-
-(: s1 String)
-(: s2 String)
-(: s3 String)
-(: s4 String)
-(: s5 String)
-(: s6 String)
-
-(define s1 "abc")
-(define s2 "def")
-(define s3 "DEF")
-(define s4 (string #\a #\b #\c))
-(define s5 (make-string 4 #\b))
-(define s6 (build-string 26 integer->char))
-
-
-
-(string? s1)
-(string? 2)
-
-(string->immutable-string s5)
-(string-length s6)
-(string-copy s3)
-(string-copy! (make-string 4) 0 s4)
-(string-copy! (make-string 4) 1 s4 1)
-(string-copy! (make-string 4) 1 s4 1 2)
-
-(string-fill! (make-string 5) #\Z)
-
-(string-append)
-(string-append s1 s2)
-(string-append s1 s2 s3)
-
-(string->list s6)
-(list->string (list #\a #\d #\d))
-
-(string=? s2 s3)
-(string<? s2 s3)
-(string>? s2 s3)
-(string<=? s2 s3)
-(string>=? s2 s3)
-
-(string-upcase s2)
-(string-downcase s3)
-(string-titlecase s4)
-(string-foldcase s5)
-
-
-(string-ci=? s2 s3)
-(string-ci<? s2 s3)
-(string-ci>? s2 s3)
-(string-ci<=? s2 s3)
-(string-ci>=? s2 s3)
-
-
-(string-normalize-nfd s2)
-(string-normalize-nfkd s3)
-(string-normalize-nfc s4)
-(string-normalize-nfkc s5)
-
-
-
-(string-locale=? s2 s3)
-(string-locale<? s2 s3)
-(string-locale>? s2 s3)
-
-(string-locale-upcase s2)
-(string-locale-downcase s3)
-
-
-(string-locale-ci=? s2 s3)
-(string-locale-ci<? s2 s3)
-(string-locale-ci>? s2 s3)
-
diff --git a/collects/tests/typed-scheme/unit-tests/typecheck-tests.rkt b/collects/tests/typed-scheme/unit-tests/typecheck-tests.rkt
index 07c0b0b833..fbe55655d2 100644
--- a/collects/tests/typed-scheme/unit-tests/typecheck-tests.rkt
+++ b/collects/tests/typed-scheme/unit-tests/typecheck-tests.rkt
@@ -883,8 +883,63 @@
         (tc-e (path->directory-path "foo") -Path)
         (tc-e (path->directory-path (string->some-system-path "foo" 'unix)) -SomeSystemPath)
 
+        ;;String Tests
+        (tc-e (string? "a") #:ret (ret B (-FS -top -bot)))
+        (tc-e (string? 2) #:ret (ret B (-FS -bot -top)))
 
-        
+        (tc-e (string->immutable-string (string #\a #\b)) -String)
+        (tc-e (string-length (make-string 5 #\z)) -Index)
+        (tc-e (string-copy (build-string 26 integer->char)) -String)
+        (tc-e (string-copy! (make-string 4) 0 "foob") -Void)
+        (tc-e (string-copy! (make-string 4) 1 "bark" 1) -Void)
+        (tc-e (string-copy! (make-string 4) 1 "zend" 1 2) -Void)
+
+        (tc-e (string-fill! (make-string 5) #\Z) -Void)
+
+        (tc-e (string-append) -String)
+        (tc-e (string-append "a" "b") -String)
+        (tc-e (string-append "c" "d" "f") -String)
+
+        (tc-e (string->list "abcde") (-lst -Char))
+        (tc-e (list->string (list #\a #\d #\d)) -String)
+
+        (tc-e (string=? "a" "a") B)
+        (tc-e (string<? "a" "a") B)
+        (tc-e (string>? "a" "a") B)
+        (tc-e (string<=? "a" "a") B)
+        (tc-e (string>=? "a" "a") B)
+
+        (tc-e (string-upcase "a") -String)
+        (tc-e (string-downcase "a") -String)
+        (tc-e (string-titlecase "a") -String)
+        (tc-e (string-foldcase "a") -String)
+
+
+        (tc-e (string-ci=? "a" "A") B)
+        (tc-e (string-ci<? "a" "A") B)
+        (tc-e (string-ci>? "a" "A") B)
+        (tc-e (string-ci<=? "a" "A") B)
+        (tc-e (string-ci>=? "a" "A") B)
+
+
+        (tc-e (string-normalize-nfd "a") -String)
+        (tc-e (string-normalize-nfkd "a") -String)
+        (tc-e (string-normalize-nfc "a") -String)
+        (tc-e (string-normalize-nfkc "a") -String)
+
+
+
+        (tc-e (string-locale=? "a" "a") B)
+        (tc-e (string-locale<? "a" "a") B)
+        (tc-e (string-locale>? "a" "a") B)
+
+        (tc-e (string-locale-upcase "a") -String)
+        (tc-e (string-locale-downcase "a") -String)
+
+
+        (tc-e (string-locale-ci=? "a" "A") B)
+        (tc-e (string-locale-ci<? "a" "A") B)
+        (tc-e (string-locale-ci>? "a" "A") B)
 
 
         )