Provide new API function to determine how much buffer space remains in the instance

1 files changed, 25 insertions, 1 deletions

diff --git a/t/02getkey.c b/t/02getkey.c
index 8b1881b..79d7976 100644
--- a/t/02getkey.c
+++ b/t/02getkey.c
@@ -8,7 +8,7 @@ int main(int argc, char *argv[])
   TermKey   *tk;
   TermKeyKey key;
 
-  plan_tests(19);
+  plan_tests(29);
 
   pipe(fd);
 
@@ -17,6 +17,8 @@ int main(int argc, char *argv[])
 
   tk = termkey_new(fd[0], TERMKEY_FLAG_NOTERMIOS);
 
+  is_int(termkey_get_buffer_remaining(tk), 256, "buffer free initially 256");
+
   is_int(termkey_getkey(tk, &key), TERMKEY_RES_NONE, "getkey yields RES_NONE when empty");
 
   write(fd[1], "h", 1);
@@ -25,6 +27,8 @@ int main(int argc, char *argv[])
 
   is_int(termkey_advisereadable(tk), TERMKEY_RES_AGAIN, "advisereadable yields RES_AGAIN after h");
 
+  is_int(termkey_get_buffer_remaining(tk), 255, "buffer free 255 after advisereadable");
+
   is_int(termkey_getkey(tk, &key), TERMKEY_RES_KEY, "getkey yields RES_KEY after h");
 
   is_int(key.type,        TERMKEY_TYPE_UNICODE, "key.type after h");
@@ -32,6 +36,8 @@ int main(int argc, char *argv[])
   is_int(key.modifiers,   0,                    "key.modifiers after h");
   is_str(key.utf8,        "h",                  "key.utf8 after h");
 
+  is_int(termkey_get_buffer_remaining(tk), 256, "buffer free 256 after getkey");
+
   is_int(termkey_getkey(tk, &key), TERMKEY_RES_NONE, "getkey yields RES_NONE a second time");
 
   write(fd[1], "\x01", 1);
@@ -54,6 +60,24 @@ int main(int argc, char *argv[])
   is_int(key.code.sym,    TERMKEY_SYM_UP,       "key.code.sym after Up");
   is_int(key.modifiers,   0,                    "key.modifiers after Up");
 
+  write(fd[1], "\eO", 2);
+  termkey_advisereadable(tk);
+
+  is_int(termkey_get_buffer_remaining(tk), 254, "buffer free 254 after partial write");
+
+  is_int(termkey_getkey(tk, &key), TERMKEY_RES_AGAIN, "getkey yields RES_AGAIN after partial write");
+
+  write(fd[1], "C", 1);
+  termkey_advisereadable(tk);
+
+  is_int(termkey_getkey(tk, &key), TERMKEY_RES_KEY, "getkey yields RES_KEY after Right completion");
+
+  is_int(key.type,        TERMKEY_TYPE_KEYSYM,  "key.type after Right");
+  is_int(key.code.sym,    TERMKEY_SYM_RIGHT,    "key.code.sym after Right");
+  is_int(key.modifiers,   0,                    "key.modifiers after Right");
+
+  is_int(termkey_get_buffer_remaining(tk), 256, "buffer free 256 after completion");
+
   termkey_destroy(tk);
 
   return exit_status();