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Before:
function! CollectResults(buffer, output)
return []
endfunction
function! FirstChainFunction(buffer)
return 'first'
endfunction
function! SecondChainFunction(buffer, output)
" We'll skip this command
return ''
endfunction
function! ThirdChainFunction(buffer, output)
return 'third'
endfunction
function! FourthChainFunction(buffer, output)
return 'fourth'
endfunction
let g:linter = {
\ 'name': 'testlinter',
\ 'callback': 'CollectResults',
\ 'executable': 'echo',
\ 'command_chain': [
\ {'callback': 'FirstChainFunction'},
\ {'callback': 'SecondChainFunction'},
\ {'callback': 'ThirdChainFunction'},
\ {'callback': 'FourthChainFunction'},
\ ],
\ 'read_buffer': 1,
\}
function! ProcessIndex(chain_index)
return ale#engine#ProcessChain(347, g:linter, a:chain_index, [])
endfunction
After:
delfunction CollectResults
delfunction FirstChainFunction
delfunction SecondChainFunction
delfunction ThirdChainFunction
delfunction ProcessIndex
unlet! g:linter
unlet! g:result
Execute(Engine invocation should return the command for the first item correctly):
let g:result = ProcessIndex(0)
AssertEqual 'first', g:result.command
AssertEqual 1, g:result.next_chain_index
Execute(Engine invocation should return the command for the second item correctly):
let g:result = ProcessIndex(1)
AssertEqual 'third', g:result.command
AssertEqual 3, g:result.next_chain_index
Execute(Engine invocation should return the command for the fourth item correctly):
let g:result = ProcessIndex(3)
AssertEqual 'fourth', g:result.command
AssertEqual 4, g:result.next_chain_index
Execute(Engine invocation should return the command for a single callback correctly):
unlet g:linter.command_chain
let g:linter.command_callback = 'FirstChainFunction'
let g:result = ProcessIndex(0)
AssertEqual 'first', g:result.command
Execute(Engine invocation should return the command for a command string correctly):
unlet g:linter.command_chain
let g:linter.command = 'foo bar'
let g:result = ProcessIndex(0)
AssertEqual 'foo bar', g:result.command
Execute(Engine invocation should process read_buffer correctly for simple commands):
unlet g:linter.command_chain
let g:linter.command = 'foo bar'
let g:linter.read_buffer = 0
let g:result = ProcessIndex(0)
AssertEqual 'foo bar', g:result.command
AssertEqual 0, g:result.read_buffer
let g:linter.command_callback = 'FirstChainFunction'
unlet g:linter.command
let g:result = ProcessIndex(0)
AssertEqual 'first', g:result.command
AssertEqual 0, g:result.read_buffer
Execute(Engine invocation should allow read_buffer to be enabled for a command in the middle of a chain):
let g:linter.command_chain[2].read_buffer = 1
let g:result = ProcessIndex(2)
AssertEqual g:result.command, 'third'
AssertEqual g:result.read_buffer, 1
Execute(Engine invocation should allow read_buffer to be disabled for the end of a chain):
let g:linter.command_chain[3].read_buffer = 0
let g:result = ProcessIndex(3)
AssertEqual g:result.command, 'fourth'
AssertEqual g:result.read_buffer, 0
Execute(Engine invocation should not use read_buffer from earlier items in a chain):
let g:linter.command_chain[1].read_buffer = 1
let g:result = ProcessIndex(1)
AssertEqual g:result.command, 'third'
AssertEqual g:result.read_buffer, 0
Execute(Engine invocation should allow the output_stream setting to be changed in the middle of a chain):
let g:linter.command_chain[2].output_stream = 'both'
let g:result = ProcessIndex(2)
AssertEqual g:result.command, 'third'
AssertEqual g:result.output_stream, 'both'
Execute(Engine invocation should not use output_stream from earlier items in a chain):
let g:linter.command_chain[1].output_stream = 'both'
let g:result = ProcessIndex(1)
AssertEqual g:result.command, 'third'
AssertEqual g:result.output_stream, 'stdout'
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