Support csc, update mcsc (#2586)

* Added a new csc linter for C# code.
* More output is now handled for mcsc.

test/command_callback/test_cs_csc_command_callbacks.vader

@@ -0,0 +1,47 @@
+Before:
+  call ale#assert#SetUpLinterTest('cs', 'csc')
+
+After:
+  call ale#assert#TearDownLinterTest()
+
+Execute(The csc linter should return the correct default command):
+  AssertLinter 'csc', ale#path#CdString(g:dir)
+  \ . 'csc /unsafe /out:TEMP /t:module /recurse:' . ale#Escape('*.cs')
+
+Execute(The options should be be used in the command):
+  let g:ale_cs_csc_options = ''
+
+  AssertLinter 'csc', ale#path#CdString(g:dir)
+  \ . 'csc /unsafe /out:TEMP /t:module /recurse:' . ale#Escape('*.cs')
+
+Execute(The souce path should be be used in the command):
+  let g:ale_cs_csc_source = '../foo/bar'
+
+  AssertLinter 'csc', ale#path#CdString('../foo/bar')
+  \ . 'csc /unsafe /out:TEMP /t:module /recurse:' . ale#Escape('*.cs')
+
+Execute(The list of search pathes for assemblies should be be used in the command if not empty):
+  let g:ale_cs_csc_assembly_path = ['/usr/lib/mono', '../foo/bar']
+
+  AssertLinter 'csc', ale#path#CdString(g:dir)
+  \ . 'csc /unsafe'
+  \ . ' /lib:' . ale#Escape('/usr/lib/mono') . ',' . ale#Escape('../foo/bar')
+  \ . ' /out:TEMP /t:module /recurse:' . ale#Escape('*.cs')
+
+  let g:ale_cs_csc_assembly_path = []
+
+  AssertLinter 'csc', ale#path#CdString(g:dir)
+  \ . 'csc /unsafe /out:TEMP /t:module /recurse:' . ale#Escape('*.cs')
+
+Execute(The list of assemblies should be be used in the command if not empty):
+  let g:ale_cs_csc_assemblies = ['foo.dll', 'bar.dll']
+
+  AssertLinter 'csc', ale#path#CdString(g:dir)
+  \ . 'csc /unsafe'
+  \ . ' /r:' . ale#Escape('foo.dll') . ',' . ale#Escape('bar.dll')
+  \ . ' /out:TEMP /t:module /recurse:' . ale#Escape('*.cs')
+
+  let g:ale_cs_csc_assemblies = []
+
+  AssertLinter 'csc', ale#path#CdString(g:dir)
+  \ . 'csc /unsafe /out:TEMP /t:module /recurse:' . ale#Escape('*.cs')

test/handler/test_csc_handler.vader

@@ -0,0 +1,98 @@
+Before:
+  Save g:ale_cs_csc_source
+
+  unlet! g:ale_cs_csc_source
+
+  call ale#test#SetDirectory('/testplugin/test/handler')
+  call ale#test#SetFilename('Test.cs')
+
+  runtime ale_linters/cs/csc.vim
+
+After:
+  unlet! g:ale_cs_csc_source
+
+  call ale#test#RestoreDirectory()
+  call ale#linter#Reset()
+
+Execute(The csc handler should work with the default of the buffer's directory):
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': 12,
+  \     'col' : 29,
+  \     'text': '; expected',
+  \     'code': 'CS1001',
+  \     'type': 'E',
+  \     'filename': ale#path#Simplify(g:dir . '/Test.cs'),
+  \   },
+  \ ],
+  \ ale_linters#cs#csc#Handle(bufnr(''), [
+  \   'Test.cs(12,29): error CS1001: ; expected',
+  \   'Compilation failed: 2 error(s), 1 warnings',
+  \ ])
+
+Execute(The csc handler should handle cannot find symbol errors):
+  let g:ale_cs_csc_source = '/home/foo/project/bar'
+
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': 12,
+  \     'col' : 29,
+  \     'text': '; expected',
+  \     'code': 'CS1001',
+  \     'type': 'E',
+  \     'filename': ale#path#Simplify('/home/foo/project/bar/Test.cs'),
+  \   },
+  \   {
+  \     'lnum': 101,
+  \     'col': 0,
+  \     'text': 'Unexpected processor directive (no #if for this #endif)',
+  \     'code': 'CS1028',
+  \     'type': 'E',
+  \     'filename': ale#path#Simplify('/home/foo/project/bar/Test.cs'),
+  \   },
+  \   {
+  \     'lnum': 10,
+  \     'col': 12,
+  \     'text': 'some warning',
+  \     'code': 'CS0123',
+  \     'type': 'W',
+  \     'filename': ale#path#Simplify('/home/foo/project/bar/Test.cs'),
+  \   },
+  \ ],
+  \ ale_linters#cs#csc#Handle(bufnr(''), [
+  \   'Test.cs(12,29): error CS1001: ; expected',
+  \   'Test.cs(101,0): error CS1028: Unexpected processor directive (no #if for this #endif)',
+  \   'Test.cs(10,12): warning CS0123: some warning',
+  \   'Compilation failed: 2 error(s), 1 warnings',
+  \ ])
+
+Execute(The csc handler should handle non file specific compiler errors without reporting overal status report as error):
+  let g:ale_cs_csc_source = '/home/foo/project/bar'
+
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': -1,
+  \     'col' : -1,
+  \     'text': 'No source files specified.',
+  \     'code': 'CS2008',
+  \     'type': 'W',
+  \     'filename': '<csc>',
+  \   },
+  \   {
+  \     'lnum': -1,
+  \     'col': -1,
+  \     'text': 'Outputs without source must have the /out option specified',
+  \     'code': 'CS1562',
+  \     'type': 'E',
+  \     'filename': '<csc>',
+  \   },
+  \ ],
+  \ ale_linters#cs#csc#Handle(bufnr(''), [
+  \   'Microsoft (R) Visual C# Compiler version 2.8.2.62916 (2ad4aabc)',
+  \   'Copyright (C) Microsoft Corporation. All rights reserved.',
+  \   'warning CS2008: No source files specified.',
+  \   'error CS1562: Outputs without source must have the /out option specified',
+  \ ])

test/handler/test_mcsc_handler.vader

@@ -67,3 +67,22 @@ Execute(The mcs handler should handle cannot find symbol errors):
   \   'Test.cs(10,12): warning CS0123: some warning',
   \   'Compilation failed: 2 error(s), 1 warnings',
   \ ])
+
+Execute(The mcsc handler should handle non file specific compiler errors without reporting overal status report as error):
+  let g:ale_cs_mcsc_source = '/home/foo/project/bar'
+
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': -1,
+  \     'col' : -1,
+  \     'text': 'No files to compile were specified',
+  \     'code': 'CS2008',
+  \     'type': 'E',
+  \     'filename': '<mcs>',
+  \   },
+  \ ],
+  \ ale_linters#cs#mcsc#Handle(bufnr(''), [
+  \     'error CS2008: No files to compile were specified',
+  \     'Compilation failed: 1 error(s), 0 warnings',
+  \ ])