From 5731616cd27c6000a0ee788611b9299eebb9cf7f Mon Sep 17 00:00:00 2001
From: w0rp <devw0rp@gmail.com>
Date: Sun, 1 Oct 2017 17:36:47 +0100
Subject: [PATCH] Get the mcsc handler tests to pass on Windows

---
 autoload/ale/path.vim                | 16 ++++++++++++----
 test/handler/test_mcsc_handler.vader |  6 +++---
 2 files changed, 15 insertions(+), 7 deletions(-)

diff --git a/autoload/ale/path.vim b/autoload/ale/path.vim
index 0ba174c7..83f6e85d 100644
--- a/autoload/ale/path.vim
+++ b/autoload/ale/path.vim
@@ -9,14 +9,22 @@ endfunction
 
 " This function is mainly used for testing.
 " Simplify() a path, and change forward slashes to back slashes on Windows.
-function! ale#path#Winify(path) abort
-    let l:simplified_path = ale#path#Simplify(a:path)
+"
+" If an additional 'add_drive' argument is given, the current drive letter
+" will be prefixed to any absolute paths on Windows.
+function! ale#path#Winify(path, ...) abort
+    let l:new_path = ale#path#Simplify(a:path)
 
     if has('win32')
-        return substitute(l:simplified_path, '/', '\\', 'g')
+        let l:new_path = substitute(l:new_path, '/', '\\', 'g')
+
+        " Add a drive letter to \foo\bar paths, if needed.
+        if a:0 && a:1 is# 'add_drive' && l:new_path[:0] is# '\'
+            let l:new_path = fnamemodify('.', ':p')[:1] . l:new_path
+        endif
     endif
 
-    return l:simplified_path
+    return l:new_path
 endfunction
 
 " Given a buffer and a filename, find the nearest file by searching upwards
diff --git a/test/handler/test_mcsc_handler.vader b/test/handler/test_mcsc_handler.vader
index a65185ca..5f4c133c 100644
--- a/test/handler/test_mcsc_handler.vader
+++ b/test/handler/test_mcsc_handler.vader
@@ -19,21 +19,21 @@ Execute(The mcs handler should handle cannot find symbol errors):
   \     'col' : 29,
   \     'text': 'error CS1001: ; expected',
   \     'type': 'E',
-  \     'filename': '/home/foo/project/bar/Test.cs'
+  \     'filename': ale#path#Winify('/home/foo/project/bar/Test.cs', 'add_drive'),
   \   },
   \   {
   \     'lnum': 101,
   \     'col': 0,
   \     'text': 'error CS1028: Unexpected processor directive (no #if for this #endif)',
   \     'type': 'E',
-  \     'filename': '/home/foo/project/bar/Test.cs'
+  \     'filename': ale#path#Winify('/home/foo/project/bar/Test.cs', 'add_drive'),
   \   },
   \   {
   \     'lnum': 10,
   \     'col': 12,
   \     'text': 'warning CS0123: some warning',
   \     'type': 'W',
-  \     'filename': '/home/foo/project/bar/Test.cs'
+  \     'filename': ale#path#Winify('/home/foo/project/bar/Test.cs', 'add_drive'),
   \   },
   \ ],
   \ ale_linters#cs#mcsc#Handle(347, [