diff --git a/t/01base.c b/t/01base.c
index 88e2c84..3f7ef13 100644
--- a/t/01base.c
+++ b/t/01base.c
@@ -8,9 +8,9 @@ int main(int argc, char *argv[])
 
   plan_tests(2);
 
-  tk = termkey_new(-1, 0);
+  tk = termkey_new_abstract("vt100", 0);
 
-  ok(!!tk, "termkey_new");
+  ok(!!tk, "termkey_new_abstract");
 
   termkey_destroy(tk);
 
diff --git a/t/02getkey.c b/t/02getkey.c
index d5c26fd..f2bd299 100644
--- a/t/02getkey.c
+++ b/t/02getkey.c
@@ -1,4 +1,3 @@
-#include <stdio.h>
 #include "../termkey.h"
 #include "taplib.h"
 
@@ -9,10 +8,7 @@ int main(int argc, char *argv[])
 
   plan_tests(27);
 
-  /* Sanitise this just in case */
-  putenv("TERM=vt100");
-
-  tk = termkey_new(-1, 0);
+  tk = termkey_new_abstract("vt100", 0);
 
   is_int(termkey_get_buffer_remaining(tk), 256, "buffer free initially 256");
 
diff --git a/t/03utf8.c b/t/03utf8.c
index bb97328..bf41d50 100644
--- a/t/03utf8.c
+++ b/t/03utf8.c
@@ -8,10 +8,7 @@ int main(int argc, char *argv[])
 
   plan_tests(57);
 
-  /* Sanitise this just in case */
-  putenv("TERM=vt100");
-
-  tk = termkey_new(-1, TERMKEY_FLAG_UTF8);
+  tk = termkey_new_abstract("vt100", TERMKEY_FLAG_UTF8);
 
   termkey_push_bytes(tk, "a", 1);
 
diff --git a/t/04flags.c b/t/04flags.c
index d803be8..1c66c93 100644
--- a/t/04flags.c
+++ b/t/04flags.c
@@ -9,10 +9,7 @@ int main(int argc, char *argv[])
 
   plan_tests(8);
 
-  /* Sanitise this just in case */
-  putenv("TERM=vt100");
-
-  tk = termkey_new(-1, 0);
+  tk = termkey_new_abstract("vt100", 0);
 
   termkey_push_bytes(tk, " ", 1);
 
diff --git a/t/10keyname.c b/t/10keyname.c
index 7a35ad7..feedbc4 100644
--- a/t/10keyname.c
+++ b/t/10keyname.c
@@ -9,7 +9,7 @@ int main(int argc, char *argv[])
 
   plan_tests(10);
 
-  tk = termkey_new(-1, 0);
+  tk = termkey_new_abstract("vt100", 0);
 
   sym = termkey_keyname2sym(tk, "Space");
   is_int(sym, TERMKEY_SYM_SPACE, "keyname2sym Space");
diff --git a/t/11strfkey.c b/t/11strfkey.c
index 67208a7..bea3a22 100644
--- a/t/11strfkey.c
+++ b/t/11strfkey.c
@@ -10,7 +10,7 @@ int main(int argc, char *argv[])
 
   plan_tests(28);
 
-  tk = termkey_new(-1, 0);
+  tk = termkey_new_abstract("vt100", 0);
 
   key.type = TERMKEY_TYPE_UNICODE;
   key.code.codepoint = 'A';
diff --git a/t/12strpkey.c b/t/12strpkey.c
index f591d9b..cb3d3c0 100644
--- a/t/12strpkey.c
+++ b/t/12strpkey.c
@@ -11,7 +11,7 @@ int main(int argc, char *argv[])
 
   plan_tests(53);
 
-  tk = termkey_new(-1, 0);
+  tk = termkey_new_abstract("vt100", 0);
 
   CLEAR_KEY;
   endp = termkey_strpkey(tk, "A", &key, 0);
diff --git a/t/13cmpkey.c b/t/13cmpkey.c
index 13ff313..88431ea 100644
--- a/t/13cmpkey.c
+++ b/t/13cmpkey.c
@@ -8,7 +8,7 @@ int main(int argc, char *argv[])
 
   plan_tests(12);
 
-  tk = termkey_new(-1, 0);
+  tk = termkey_new_abstract("vt100", 0);
 
   key1.type = TERMKEY_TYPE_UNICODE;
   key1.code.codepoint = 'A';
diff --git a/t/20canon.c b/t/20canon.c
index ec6de1f..8d7b6ad 100644
--- a/t/20canon.c
+++ b/t/20canon.c
@@ -11,7 +11,7 @@ int main(int argc, char *argv[])
 
   plan_tests(26);
 
-  tk = termkey_new(-1, 0);
+  tk = termkey_new_abstract("vt100", 0);
 
   CLEAR_KEY;
   endp = termkey_strpkey(tk, " ", &key, 0);