diff --git a/tst/testinstall/kernel/stringobj.tst b/tst/testinstall/kernel/stringobj.tst
new file mode 100644
index 00000000000..b27bf858038
--- /dev/null
+++ b/tst/testinstall/kernel/stringobj.tst
@@ -0,0 +1,126 @@
+#
+# Tests for functions defined in src/strinobj.c
+#
+gap> START_TEST("kernel/strinobj.tst");
+
+#
+gap> s := EmptyString(2);
+""
+gap> EmptyString(-1);
+Error, <len> must be an non-negative integer (not a integer)
+
+#
+gap> ShrinkAllocationString(s);
+gap> ShrinkAllocationString(1);
+Error, <str> must be a string, not a integer)
+
+#
+gap> CHAR_INT(fail);
+Error, <val> must be an integer (not a boolean or fail)
+gap> CHAR_INT(-1);
+Error, <val> must be an integer between 0 and 255
+gap> CHAR_INT(65);
+'A'
+
+#
+gap> INT_CHAR(1);
+Error, <val> must be a character (not a integer)
+gap> INT_CHAR('A');
+65
+
+#
+gap> CHAR_SINT(fail);
+Error, <val> must be an integer (not a boolean or fail)
+gap> CHAR_SINT(255);
+Error, <val> must be an integer between -128 and 127
+gap> CHAR_SINT(65);
+'A'
+
+#
+gap> SINT_CHAR(1);
+Error, <val> must be a character (not a integer)
+gap> SINT_CHAR('A');
+65
+
+#
+gap> INTLIST_STRING("ABC", 1);
+[ 65, 66, 67 ]
+gap> INTLIST_STRING("ABC", -1);
+[ 65, 66, 67 ]
+gap> INTLIST_STRING(1, -1);
+Error, <val> must be a string, not a integer)
+
+#
+gap> SINTLIST_STRING("ABC");
+[ 65, 66, 67 ]
+gap> SINTLIST_STRING(1);
+Error, <val> must be a string, not a integer)
+
+#
+gap> STRING_SINTLIST([ 65, 66, 67 ]);
+"ABC"
+gap> STRING_SINTLIST([ 65 .. 67 ]);
+"ABC"
+gap> STRING_SINTLIST(1);
+Error, <val> must be a plain list of small integers or a range, not a integer
+gap> STRING_SINTLIST([ 'B' ]);
+Error, <val> must be a plain list of small integers or a range, not a list (pl\
+ain,hom)
+
+#
+gap> REVNEG_STRING(1);
+Error, <val> must be a string, not a integer)
+
+#
+gap> CONV_STRING(1);
+Error, ConvString: <string> must be a string (not a integer)
+
+#
+gap> COPY_TO_STRING_REP(1);
+Error, CopyToStringRep: <string> must be a string (not a integer)
+
+#
+gap> POSITION_SUBSTRING("abc","x",0);
+fail
+gap> POSITION_SUBSTRING("abc","b",0);
+2
+gap> POSITION_SUBSTRING("abc","b",3);
+fail
+gap> POSITION_SUBSTRING(1,2,3);
+Error, POSITION_SUBSTRING: <string> must be a string (not a integer)
+gap> POSITION_SUBSTRING("abc",2,3);
+Error, POSITION_SUBSTRING: <substr> must be a string (not a integer)
+gap> POSITION_SUBSTRING("abc","b",-1);
+Error, POSITION_SUBSTRING: <off> must be a non-negative integer (not a integer\
+)
+
+#
+gap> s:="  abc\n  xyz\n";; NormalizeWhitespace(s); s;
+"abc xyz"
+gap> NormalizeWhitespace(1);
+Error, NormalizeWhitespace: <string> must be a string (not a integer)
+
+#
+gap> s:="abcdabcd";; REMOVE_CHARACTERS(s, "db"); s;
+"acac"
+gap> REMOVE_CHARACTERS(1,1);
+Error, RemoveCharacters: first argument <string> must be a string (not a integ\
+er)
+gap> REMOVE_CHARACTERS(s,1);
+Error, RemoveCharacters: second argument <rem> must be a string (not a integer\
+)
+
+#
+gap> s:="abc";; TranslateString(s,UPPERCASETRANSTABLE); s;
+"ABC"
+gap> TranslateString(1,1);
+Error, TranslateString: first argument <string> must be a string (not a intege\
+r)
+gap> TranslateString("abc",1);
+Error, TranslateString: second argument <trans> must be a string (not a intege\
+r)
+gap> TranslateString("abc","def");
+Error, TranslateString: second argument <trans> must have length >= 256
+
+#
+gap> STOP_TEST("kernel/strinobj.tst", 1);