build/test: setup functional tests using vroom

Makefile

@@ -76,6 +76,7 @@ endif
 
 test: | nvim
 	+$(SINGLE_MAKE) -C src/nvim/testdir $(MAKEOVERRIDES)
+	PATH="$$(pwd)/build/bin:$$PATH" vroom --neovim --crawl test
 
 unittest: | nvim
 	+$(BUILD_CMD) -C build unittest

src/nvim/testdir/test2.in

@@ -1,29 +0,0 @@
-
-This is a test if a URL is recognized by "gf", with the cursor before and
-after the "://".  Also test ":\\".
-
-STARTTEST
-:so small.vim
-/^first
-/tmp
-:call append(0, expand("<cfile>"))
-/^second
-/URL
-:call append(1, expand("<cfile>"))
-:if has("ebcdic")
-: set isf=@,240-249,/,.,-,_,+,,,$,:,~,\
-:else
-: set isf=@,48-57,/,.,-,_,+,,,$,:,~,\
-:endif
-/^third
-/name
-:call append(2, expand("<cfile>"))
-/^fourth
-/URL
-:call append(3, expand("<cfile>"))
-5GdG:wq! test.out
-ENDTEST
-first test for URL://machine.name/tmp/vimtest2a and other text
-second test for URL://machine.name/tmp/vimtest2b. And other text
-third test for URL:\\machine.name\vimtest2c and other text
-fourth test for URL:\\machine.name\tmp\vimtest2d, and other text

src/nvim/testdir/test2.ok

@@ -1,4 +0,0 @@
-URL://machine.name/tmp/vimtest2a
-URL://machine.name/tmp/vimtest2b
-URL:\\machine.name\vimtest2c
-URL:\\machine.name\tmp\vimtest2d

test/legacy/test2-filename-recognition.vroom

@@ -0,0 +1,40 @@
+Test if URLs are recognized as filenames by commands such as "gf". Here
+we'll use `expand("<cfile>")` since "gf" would need to open the file.
+
+Insert some URLs:
+
+  % first test for URL://machine.name/tmp/vimtest2a and other text<cr>
+  % second test for URL://machine.name/tmp/vimtest2b. And other text<cr>
+  % third test for URL:\\machine.name\vimtest2c and other text<cr>
+  % fourth test for URL:\\machine.name\tmp\vimtest2d, and other text
+
+Go to the first URL:
+
+  :/^first<cr>/tmp
+
+Append the url to the beginning of the buffer:
+
+  :call append(0, expand("<cfile>"))
+
+Repeat for the second URL, but navigate to the 'URL' word:
+
+  :/^second<cr>/URL<cr>:call append(1, expand("<cfile>"))
+
+Repeat for the other two, but first the 'isfname' option must be set to
+allow '\' in filenames
+
+  :set isf=@,48-57,/,.,-,_,+,,,$,:,~,\
+  :/^third<cr>/name<cr>:call append(2, expand("<cfile>"))
+  :/^fourth<cr>/URL<cr>:call append(3, expand("<cfile>"))
+
+Delete the initial text which starts at line 5:
+
+  > 5GdG
+
+Result:
+
+  URL://machine.name/tmp/vimtest2a
+  URL://machine.name/tmp/vimtest2b
+  URL:\\machine.name\vimtest2c
+  URL:\\machine.name\tmp\vimtest2d
+  @end