+Before:
+ Save g:ale_linters
+ Save g:ale_linter_aliases
+
+ let g:testlinter1 = {'name': 'testlinter1', 'executable': 'testlinter1', 'command': 'testlinter1', 'callback': 'testCB1', 'output_stream': 'stdout', 'read_buffer': 1, 'lint_file': 0, 'aliases': [], 'lsp': ''}
+ let g:testlinter2 = {'name': 'testlinter2', 'executable': 'testlinter2', 'command': 'testlinter2', 'callback': 'testCB2', 'output_stream': 'stdout', 'read_buffer': 0, 'lint_file': 1, 'aliases': [], 'lsp': ''}
+ call ale#linter#Reset()
+ call ale#linter#PreventLoading('testft')
+ call ale#linter#PreventLoading('javascript')
+ call ale#linter#PreventLoading('typescript')
+
+After:
+ Restore
+
+ unlet! g:testlinter1
+ unlet! g:testlinter2
+ unlet! b:ale_linters
+ unlet! b:ale_linter_aliases
+ call ale#linter#Reset()
+
+Execute (You should be able to get a defined linter):
+ call ale#linter#Define('testft', g:testlinter1)
+ AssertEqual [g:testlinter1], ale#linter#Get('testft')
+
+Execute (You should be able get select a single linter):
+ call ale#linter#Define('testft', g:testlinter1)
+ call ale#linter#Define('testft', g:testlinter2)
+ let g:ale_linters = {'testft': ['testlinter1']}
+
+ AssertEqual [g:testlinter1], ale#linter#Get('testft')
+
+Execute (You should be able to select a linter by an alias):
+ let g:testlinter1.aliases = ['foo', 'linter1alias']
+
+ call ale#linter#Define('testft', g:testlinter1)
+ call ale#linter#Define('testft', g:testlinter2)
+ let g:ale_linters = {'testft': ['linter1alias']}
+
+ AssertEqual [g:testlinter1], ale#linter#Get('testft')
+
+Execute (You should be able to select linters with a buffer option):
+ call ale#linter#Define('testft', g:testlinter1)
+ call ale#linter#Define('testft', g:testlinter2)
+ let g:ale_linters = {'testft': ['testlinter1', 'testlinter2']}
+ let b:ale_linters = {'testft': ['testlinter1']}
+
+ AssertEqual [g:testlinter1], ale#linter#Get('testft')
+
+Execute (b:ale_linters should work when set to a List):
+ call ale#linter#Define('testft', g:testlinter1)
+ call ale#linter#Define('testft', g:testlinter2)
+ let g:ale_linters = {'testft': ['testlinter1', 'testlinter2']}
+ let b:ale_linters = ['testlinter1']
+
+ AssertEqual [g:testlinter1], ale#linter#Get('testft')
+
+Execute (b:ale_linters should disable all linters when set to an empty List):
+ call ale#linter#Define('testft', g:testlinter1)
+ call ale#linter#Define('testft', g:testlinter2)
+ let g:ale_linters = {'testft': ['testlinter1', 'testlinter2']}
+ let b:ale_linters = []
+
+ AssertEqual [], ale#linter#Get('testft')
+
+Execute (b:ale_linters should enable all available linters when set to 'all'):
+ call ale#linter#Define('testft', g:testlinter1)
+ call ale#linter#Define('testft', g:testlinter2)
+ let g:ale_linters = {'testft': ['testlinter1']}
+ let b:ale_linters = 'all'
+
+ AssertEqual [g:testlinter1, g:testlinter2], ale#linter#Get('testft')
+
+Execute (Buffer settings shouldn't completely replace global settings):
+ call ale#linter#Define('testft', g:testlinter1)
+ call ale#linter#Define('testft', g:testlinter2)
+ let g:ale_linters = {'testft': ['testlinter1']}
+ let b:ale_linters = {'testft2': ['testlinter1', 'testlinter2']}
+
+ AssertEqual [g:testlinter1], ale#linter#Get('testft')
+
+Execute (You should be able to alias linters from one filetype to another):
+ call ale#linter#Define('testft1', g:testlinter1)
+ let g:ale_linter_aliases = {'testft2': 'testft1'}
+
+ AssertEqual [g:testlinter1], ale#linter#Get('testft2')
+
+Execute (You should be able to filter aliased linters):
+ call ale#linter#Define('testft1', g:testlinter1)
+ call ale#linter#Define('testft1', g:testlinter2)
+ let g:ale_linters = {'testft1': ['testlinter1'], 'testft2': ['testlinter2']}
+ let g:ale_linter_aliases = {'testft2': 'testft1'}
+
+ AssertEqual [g:testlinter1], ale#linter#Get('testft1')
+ AssertEqual [g:testlinter2], ale#linter#Get('testft2')
+
+Execute (Dot-separated filetypes should be handled correctly):
+ call ale#linter#Define('testft1', g:testlinter1)
+ call ale#linter#Define('testft2', g:testlinter2)
+
+ AssertEqual [g:testlinter1, g:testlinter2], ale#linter#Get('testft1.testft2')
+
+Execute (Linters for multiple aliases should be loaded):
+ call ale#linter#Define('testft1', g:testlinter1)
+ call ale#linter#Define('testft2', g:testlinter2)
+ let ale_linter_aliases = {'testft3': ['testft1', 'testft2']}
+
+ AssertEqual [g:testlinter1, g:testlinter2], ale#linter#Get('testft3')
+
+Execute (You should be able to alias filetypes to themselves and another):
+ call ale#linter#Define('testft1', g:testlinter1)
+ call ale#linter#Define('testft2', g:testlinter2)
+ let ale_linter_aliases = {'testft1': ['testft1', 'testft2']}
+
+ AssertEqual [g:testlinter1, g:testlinter2], ale#linter#Get('testft1')
+
+Execute (Buffer-local overrides for aliases should be used):
+ call ale#linter#Define('testft1', g:testlinter1)
+ call ale#linter#Define('testft2', g:testlinter2)
+ let g:ale_linter_aliases = {'testft1': ['testft2']}
+ let b:ale_linter_aliases = {'testft1': ['testft1', 'testft2']}
+
+ AssertEqual [g:testlinter1, g:testlinter2], ale#linter#Get('testft1')
+
+Execute (The local alias option shouldn't completely replace the global one):
+ call ale#linter#Define('testft1', g:testlinter1)
+ call ale#linter#Define('testft2', g:testlinter2)
+ let g:ale_linter_aliases = {'testft1': ['testft1', 'testft2']}
+ " This is a key set for a different filetype.
+ " We should look for a key in this Dictionary first, and then check the
+ " global Dictionary.
+ let b:ale_linter_aliases = {'testft3': ['testft1']}
+
+ AssertEqual [g:testlinter1, g:testlinter2], ale#linter#Get('testft1')
+
+Execute (Lists should be accepted for local aliases):
+ call ale#linter#Define('testft1', g:testlinter1)
+ call ale#linter#Define('testft2', g:testlinter2)
+ let g:ale_linter_aliases = {'testft1': ['testft1', 'testft2']}
+ " We should load the testft2 linters for this buffer, with no duplicates.
+ let b:ale_linter_aliases = ['testft2']
+
+ AssertEqual [g:testlinter2], ale#linter#Get('anything.else')
+
+Execute (Strings should be accepted for local aliases):
+ call ale#linter#Define('testft1', g:testlinter1)
+ call ale#linter#Define('testft2', g:testlinter2)
+ let g:ale_linter_aliases = {'testft1': ['testft1', 'testft2']}
+ " We should load the testft2 linters for this buffer, with no duplicates.
+ let b:ale_linter_aliases = 'testft2'
+
+ AssertEqual [g:testlinter2], ale#linter#Get('anything.else')
+
+Execute (Buffer-local overrides for aliases should be used):
+ call ale#linter#Define('testft1', g:testlinter1)
+ call ale#linter#Define('testft2', g:testlinter2)
+ let g:ale_linter_aliases = {'testft1': ['testft2']}
+ let b:ale_linter_aliases = {'testft1': ['testft1', 'testft2']}
+
+ AssertEqual [g:testlinter1, g:testlinter2], ale#linter#Get('testft1')
+
+Execute (Linters new linters with the same name should replace old ones):
+ let g:testlinter1.name = g:testlinter2.name
+
+ call ale#linter#Define('testft1', g:testlinter1)
+ call ale#linter#Define('testft1', g:testlinter2)
+
+ AssertEqual [g:testlinter2], ale#linter#GetAll(['testft1'])
+
+Execute (Linters should be loaded from disk appropriately):
+ call ale#linter#Reset()
+ AssertEqual [{'name': 'testlinter', 'output_stream': 'stdout', 'executable': 'testlinter', 'command': 'testlinter', 'callback': 'testCB', 'read_buffer': 1, 'lint_file': 0, 'aliases': [], 'lsp': ''}], ale#linter#Get('testft')
+
+
+Execute (Linters for later filetypes should replace the former ones):
+ call ale#linter#Define('javascript', {
+ \ 'name': 'eslint',
+ \ 'executable': 'y',
+ \ 'command': 'y',
+ \ 'callback': 'y',
+ \})
+ call ale#linter#Define('typescript', {
+ \ 'name': 'eslint',
+ \ 'executable': 'x',
+ \ 'command': 'x',
+ \ 'callback': 'x',
+ \})
+
+ AssertEqual [
+ \ {'output_stream': 'stdout', 'lint_file': 0, 'read_buffer': 1, 'name': 'eslint', 'executable': 'x', 'lsp': '', 'aliases': [], 'command': 'x', 'callback': 'x'}
+ \], ale#linter#Get('javascript.typescript')