diff --git a/tests/string_memcpy.c b/tests/string_memcpy.c
new file mode 100644
index 0000000..bae1d15
--- /dev/null
+++ b/tests/string_memcpy.c
@@ -0,0 +1,16 @@
+#include "string.h"
+
+int main(void)
+{
+  char testblock[8] = {1, 2, 3, 4, 5, 6, 7, 8};
+  char testblock2[6] = {50, 60, 70, 80, 90, 100};
+  int i = 0;
+
+  memcpy((void *)&testblock, (void *)&testblock2, (sizeof(char)*6));
+  for ( i = 0; i < 6; i++) {
+    if ( testblock[i] != testblock2[i] ) return (i + 1);
+  }
+  if ( testblock[6] != 7 ) return 7;
+  if ( testblock[7] != 8 ) return 8;
+  return 0;
+}
diff --git a/tests/string_memcpy.deps b/tests/string_memcpy.deps
new file mode 100644
index 0000000..ee8a39c
--- /dev/null
+++ b/tests/string_memcpy.deps
@@ -0,0 +1 @@
+string
diff --git a/tests/string_memset.c b/tests/string_memset.c
new file mode 100644
index 0000000..88681a0
--- /dev/null
+++ b/tests/string_memset.c
@@ -0,0 +1,17 @@
+#include "string.h"
+
+int main(void)
+{
+  char testblock[12] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12};
+  int i = 0;
+
+  memset((void *)&testblock, 0x00, (sizeof(char) * 8));
+  for ( i = 0; i < 8; i++) {
+    if ( testblock[i] != 0x00 ) return (i + 1);
+  }
+  if ( testblock[8] != 9 ) return 8;
+  if ( testblock[9] != 10 ) return 9;
+  if ( testblock[10] != 11 ) return 10;
+  if ( testblock[11] != 12 ) return 11;
+  return 0;
+}
diff --git a/tests/string_memset.deps b/tests/string_memset.deps
new file mode 100644
index 0000000..ee8a39c
--- /dev/null
+++ b/tests/string_memset.deps
@@ -0,0 +1 @@
+string
diff --git a/tests/string_strlen.c b/tests/string_strlen.c
new file mode 100644
index 0000000..39aed22
--- /dev/null
+++ b/tests/string_strlen.c
@@ -0,0 +1,9 @@
+#include "string.h"
+
+int main(void)
+{
+  if ( strlen("Test") != 4 ) return 1;
+  if ( strlen("Th\0ing") != 2 ) return 2;
+  if ( strlen(NULL) != 0 ) return 3;
+  return 0;
+}
diff --git a/tests/string_strlen.deps b/tests/string_strlen.deps
new file mode 100644
index 0000000..ee8a39c
--- /dev/null
+++ b/tests/string_strlen.deps
@@ -0,0 +1 @@
+string
diff --git a/tests/string_strncat.c b/tests/string_strncat.c
new file mode 100644
index 0000000..94a4cd9
--- /dev/null
+++ b/tests/string_strncat.c
@@ -0,0 +1,20 @@
+#include "string.h"
+
+int main(void)
+{
+  char buffer[32];
+  char *src = "Test String";
+  int i = 0 ;
+  if ( strncat((char *)&buffer, NULL, 0) != 0 ) return 1;
+  if ( strncat(NULL, NULL, 0) != 0 ) return 2;
+  if ( strncat(NULL, src, 0) != 0 ) return 3;
+
+  if ( strncat((char *)&buffer, src, 11) == 0 ) return 4;
+
+  for ( i = 0; i < 11 ; i++  ) {
+    if ( buffer[i] != *(src + (sizeof(char) * i)) ) return i + 5; 
+  }
+  if ( buffer[11] != '\0' ) return 12 + 5;
+
+  return 0;
+}
diff --git a/tests/string_strncat.deps b/tests/string_strncat.deps
new file mode 100644
index 0000000..ee8a39c
--- /dev/null
+++ b/tests/string_strncat.deps
@@ -0,0 +1 @@
+string