test_eslint_fixer_callback.vader

Before:
  call ale#assert#SetUpFixerTest('javascript', 'eslint')
  Save g:ale_command_wrapper

  runtime autoload/ale/handlers/eslint.vim

  let g:ale_command_wrapper = ''

After:
  call ale#assert#TearDownFixerTest()

Execute(The executable path should be correct):
  call ale#test#SetFilename('../test-files/eslint/react-app/subdir/testfile.js')

  " eslint_d output with an older eslint version is used here.
  GivenCommandOutput ['v4.4.1 (eslint_d v5.1.0)']
  AssertFixer
  \ {
  \   'read_temporary_file': 1,
  \   'cwd': ale#path#Simplify(g:dir . '/../test-files/eslint/react-app'),
  \   'command': (has('win32') ? 'node.exe ' : '')
  \     . ale#Escape(ale#path#Simplify(g:dir . '/../test-files/eslint/react-app/node_modules/eslint/bin/eslint.js'))
  \     . ' -c ' . ale#Escape(ale#path#Simplify(g:dir . '/../test-files/eslint/react-app/.eslintrc.js'))
  \     . ' --fix %t',
  \ }

Execute(The ESLint fixer shouldn't run if no configuration file can be found):
  call ale#test#SetFilename('../no-configuration')
  AssertFixerNotExecuted

Execute(The ESLint fixer should use a config file option if set for old versions):
  call ale#test#SetFilename('../no-configuration')
  let b:ale_javascript_eslint_options = '-c /foo.cfg'

  AssertFixer
  \ {
  \   'read_temporary_file': 1,
  \   'cwd': '',
  \   'command': ale#Escape('eslint') . ' -c /foo.cfg --fix %t',
  \ }

  let b:ale_javascript_eslint_options = '--bar -c /foo.cfg'

  AssertFixer
  \ {
  \   'read_temporary_file': 1,
  \   'cwd': '',
  \   'command': ale#Escape('eslint') . ' --bar -c /foo.cfg --fix %t',
  \ }

  let b:ale_javascript_eslint_options = '--config /foo.cfg'

  AssertFixer
  \ {
  \   'read_temporary_file': 1,
  \   'cwd': '',
  \   'command': ale#Escape('eslint') . ' --config /foo.cfg --fix %t',
  \ }

  let b:ale_javascript_eslint_options = '--bar --config /foo.cfg'

  AssertFixer
  \ {
  \   'read_temporary_file': 1,
  \   'cwd': '',
  \   'command': ale#Escape('eslint') . ' --bar --config /foo.cfg --fix %t',
  \ }

Execute(The ESLint fixer should use a -c file option if set for eslint_d):
  let b:ale_javascript_eslint_executable = '/bin/eslint_d'
  GivenCommandOutput ['v3.19.0 (eslint_d v4.2.0)']
  call ale#test#SetFilename('../no-configuration')
  let b:ale_javascript_eslint_options = '-c /foo.cfg'

  AssertFixer
  \ {
  \   'process_with': 'ale#fixers#eslint#ProcessEslintDOutput',
  \   'cwd': '',
  \   'command': ale#Escape('/bin/eslint_d')
  \     . ' -c /foo.cfg'
  \     . ' --stdin-filename %s --stdin --fix-to-stdout'
  \ }

  let b:ale_javascript_eslint_options = '--bar -c /foo.cfg'

  AssertFixer
  \ {
  \   'process_with': 'ale#fixers#eslint#ProcessEslintDOutput',
  \   'cwd': '',
  \   'command': ale#Escape('/bin/eslint_d')
  \     . ' --bar -c /foo.cfg'
  \     . ' --stdin-filename %s --stdin --fix-to-stdout'
  \ }

  let b:ale_javascript_eslint_options = '--config /foo.cfg'

  AssertFixer
  \ {
  \   'process_with': 'ale#fixers#eslint#ProcessEslintDOutput',
  \   'cwd': '',
  \   'command': ale#Escape('/bin/eslint_d')
  \     . ' --config /foo.cfg'
  \     . ' --stdin-filename %s --stdin --fix-to-stdout'
  \ }

  let b:ale_javascript_eslint_options = '--bar --config /foo.cfg'

  AssertFixer
  \ {
  \   'process_with': 'ale#fixers#eslint#ProcessEslintDOutput',
  \   'cwd': '',
  \   'command': ale#Escape('/bin/eslint_d')
  \     . ' --bar --config /foo.cfg'
  \     . ' --stdin-filename %s --stdin --fix-to-stdout'
  \ }

Execute(The ESLint fixer should use a config file option if set for new versions):
  GivenCommandOutput ['4.9.0']
  call ale#test#SetFilename('../no-configuration')
  let b:ale_javascript_eslint_options = '-c /foo.cfg'

  AssertFixer
  \ {
  \   'process_with': 'ale#fixers#eslint#ProcessFixDryRunOutput',
  \   'cwd': '',
  \   'command': ale#Escape('eslint')
  \     . ' -c /foo.cfg'
  \     . ' --stdin-filename %s --stdin --fix-dry-run --format=json'
  \ }

  let b:ale_javascript_eslint_options = '--bar -c /foo.cfg'

  AssertFixer
  \ {
  \   'process_with': 'ale#fixers#eslint#ProcessFixDryRunOutput',
  \   'cwd': '',
  \   'command': ale#Escape('eslint')
  \     . ' --bar -c /foo.cfg'
  \     . ' --stdin-filename %s --stdin --fix-dry-run --format=json'
  \ }

  let b:ale_javascript_eslint_options = '--config /foo.cfg'

  AssertFixer
  \ {
  \   'process_with': 'ale#fixers#eslint#ProcessFixDryRunOutput',
  \   'cwd': '',
  \   'command': ale#Escape('eslint')
  \     . ' --config /foo.cfg'
  \     . ' --stdin-filename %s --stdin --fix-dry-run --format=json'
  \ }

  let b:ale_javascript_eslint_options = '--bar --config /foo.cfg'

  AssertFixer
  \ {
  \   'process_with': 'ale#fixers#eslint#ProcessFixDryRunOutput',
  \   'cwd': '',
  \   'command': ale#Escape('eslint')
  \     . ' --bar --config /foo.cfg'
  \     . ' --stdin-filename %s --stdin --fix-dry-run --format=json'
  \ }

Execute(The lower priority configuration file in a nested directory should be preferred):
  call ale#test#SetFilename('../test-files/eslint/react-app/subdir-with-config/testfile.js')

  AssertFixer
  \ {
  \   'read_temporary_file': 1,
  \   'cwd': ale#path#Simplify(g:dir . '/../test-files/eslint/react-app'),
  \   'command': (has('win32') ? 'node.exe ' : '')
  \     . ale#Escape(ale#path#Simplify(g:dir . '/../test-files/eslint/react-app/node_modules/eslint/bin/eslint.js'))
  \     . ' -c ' . ale#Escape(ale#path#Simplify(g:dir . '/../test-files/eslint/react-app/subdir-with-config/.eslintrc'))
  \     . ' --fix %t',
  \ }

Execute(--config in options should override configuration file detection for old versions):
  call ale#test#SetFilename('../test-files/eslint/react-app/subdir-with-config/testfile.js')

  let b:ale_javascript_eslint_options = '--config /foo.cfg'

  AssertFixer
  \ {
  \   'read_temporary_file': 1,
  \   'cwd': ale#path#Simplify(g:dir . '/../test-files/eslint/react-app'),
  \   'command': (has('win32') ? 'node.exe ' : '')
  \     . ale#Escape(ale#path#Simplify(g:dir . '/../test-files/eslint/react-app/node_modules/eslint/bin/eslint.js'))
  \     . ' --config /foo.cfg'
  \     . ' --fix %t',
  \ }

  let b:ale_javascript_eslint_options = '-c /foo.cfg'

  AssertFixer
  \ {
  \   'read_temporary_file': 1,
  \   'cwd': ale#path#Simplify(g:dir . '/../test-files/eslint/react-app'),
  \   'command': (has('win32') ? 'node.exe ' : '')
  \     . ale#Escape(ale#path#Simplify(g:dir . '/../test-files/eslint/react-app/node_modules/eslint/bin/eslint.js'))
  \     . ' -c /foo.cfg'
  \     . ' --fix %t',
  \ }

Execute(package.json should be used as a last resort):
  call ale#test#SetFilename('../test-files/eslint/react-app/subdir-with-package-json/testfile.js')

  AssertFixer
  \ {
  \   'read_temporary_file': 1,
  \   'cwd': ale#path#Simplify(g:dir . '/../test-files/eslint/react-app'),
  \   'command': (has('win32') ? 'node.exe ' : '')
  \     . ale#Escape(ale#path#Simplify(g:dir . '/../test-files/eslint/react-app/node_modules/eslint/bin/eslint.js'))
  \     . ' -c ' . ale#Escape(ale#path#Simplify(g:dir . '/../test-files/eslint/react-app/.eslintrc.js'))
  \     . ' --fix %t',
  \ }

  call ale#test#SetFilename('../test-files/eslint/package.json')

  AssertFixer
  \ {
  \   'read_temporary_file': 1,
  \   'cwd': ale#path#Simplify(g:dir . '/../test-files/eslint'),
  \   'command': ale#Escape(ale#path#Simplify(g:dir . '/../test-files/eslint/node_modules/.bin/eslint'))
  \     . ' -c ' . ale#Escape(ale#path#Simplify(g:dir . '/../test-files/eslint/package.json'))
  \     . ' --fix %t',
  \ }

Execute(The version check should be correct):
  call ale#test#SetFilename('../test-files/eslint/react-app/subdir-with-config/testfile.js')

  " We should run the command to get the version the first time.
  GivenCommandOutput ['4.9.0']
  AssertFixer [
  \ (has('win32') ? 'node.exe ' : '')
  \   . ale#Escape(ale#path#Simplify(g:dir . '/../test-files/eslint/react-app/node_modules/eslint/bin/eslint.js'))
  \   . ' --version',
  \ {
  \   'cwd': ale#path#Simplify(g:dir . '/../test-files/eslint/react-app'),
  \   'command': (has('win32') ? 'node.exe ' : '')
  \     . ale#Escape(ale#path#Simplify(g:dir . '/../test-files/eslint/react-app/node_modules/eslint/bin/eslint.js'))
  \     . ' --stdin-filename %s --stdin --fix-dry-run --format=json',
  \   'process_with': 'ale#fixers#eslint#ProcessFixDryRunOutput',
  \ },
  \]

  AssertFixer [
  \ {
  \   'cwd': ale#path#Simplify(g:dir . '/../test-files/eslint/react-app'),
  \   'command': (has('win32') ? 'node.exe ' : '')
  \     . ale#Escape(ale#path#Simplify(g:dir . '/../test-files/eslint/react-app/node_modules/eslint/bin/eslint.js'))
  \     . ' --stdin-filename %s --stdin --fix-dry-run --format=json',
  \   'process_with': 'ale#fixers#eslint#ProcessFixDryRunOutput',
  \ },
  \]

Execute(--fix-dry-run should be used for 4.9.0 and up):
  call ale#test#SetFilename('../test-files/eslint/react-app/subdir/testfile.js')

  GivenCommandOutput ['4.9.0']
  AssertFixer
  \ {
  \   'cwd': ale#path#Simplify(g:dir . '/../test-files/eslint/react-app'),
  \   'command': (has('win32') ? 'node.exe ' : '')
  \     . ale#Escape(ale#path#Simplify(g:dir . '/../test-files/eslint/react-app/node_modules/eslint/bin/eslint.js'))
  \     . ' --stdin-filename %s --stdin --fix-dry-run --format=json',
  \   'process_with': 'ale#fixers#eslint#ProcessFixDryRunOutput',
  \ }

Execute(--fix-to-stdout should be used for eslint_d):
  call ale#test#SetFilename('../test-files/eslint/app-with-eslint-d/testfile.js')

  AssertFixer
  \ {
  \   'read_temporary_file': 1,
  \   'cwd': ale#path#Simplify(g:dir . '/../test-files/eslint/app-with-eslint-d'),
  \   'command': ale#Escape(ale#path#Simplify(g:dir . '/../test-files/eslint/app-with-eslint-d/node_modules/.bin/eslint_d'))
  \     . ' -c ' . ale#Escape(ale#path#Simplify(g:dir . '/../test-files/eslint/package.json'))
  \     . ' --fix %t',
  \ }

  " The option should be used when eslint_d is new enough.
  " We look at the ESLint version instead of the eslint_d version.
  GivenCommandOutput ['v3.19.0 (eslint_d v4.2.0)']
  AssertFixer
  \ {
  \   'cwd': ale#path#Simplify(g:dir . '/../test-files/eslint/app-with-eslint-d'),
  \   'command': ale#Escape(ale#path#Simplify(g:dir . '/../test-files/eslint/app-with-eslint-d/node_modules/.bin/eslint_d'))
  \     . ' --stdin-filename %s --stdin --fix-to-stdout',
  \   'process_with': 'ale#fixers#eslint#ProcessEslintDOutput',
  \ }

  " The option should be used for new versions too.
  GivenCommandOutput ['4.9.0']
  AssertFixer
  \ {
  \   'cwd': ale#path#Simplify(g:dir . '/../test-files/eslint/app-with-eslint-d'),
  \   'command': ale#Escape(ale#path#Simplify(g:dir . '/../test-files/eslint/app-with-eslint-d/node_modules/.bin/eslint_d'))
  \     . ' --stdin-filename %s --stdin --fix-to-stdout',
  \   'process_with': 'ale#fixers#eslint#ProcessEslintDOutput',
  \ }

Execute(The --fix-dry-run post-processor should handle JSON output correctly):
  AssertEqual
  \ [],
  \ ale#fixers#eslint#ProcessFixDryRunOutput(bufnr(''), [])
  AssertEqual
  \ [],
  \ ale#fixers#eslint#ProcessFixDryRunOutput(bufnr(''), [''])
  AssertEqual
  \ [],
  \ ale#fixers#eslint#ProcessFixDryRunOutput(bufnr(''), ['[{}]'])
  AssertEqual
  \ ['foo', 'bar'],
  \ ale#fixers#eslint#ProcessFixDryRunOutput(bufnr(''), ['[{"output": "foo\nbar"}]'])

Execute(The eslint_d post-processor should permit regular JavaScript content):
  AssertEqual
  \ [
  \   'const x = ''Error: foo''',
  \   'const y = 3',
  \ ],
  \ ale#fixers#eslint#ProcessEslintDOutput(bufnr(''), [
  \   'const x = ''Error: foo''',
  \   'const y = 3',
  \ ])

Execute(The eslint_d post-processor should handle error messages correctly):
  AssertEqual
  \ [],
  \ ale#fixers#eslint#ProcessEslintDOutput(bufnr(''), [
  \   'Error: No ESLint configuration found.',
  \ ])

Execute(The eslint_d post-processor should handle failing to connect properly):
  AssertEqual
  \ [],
  \ ale#fixers#eslint#ProcessEslintDOutput(bufnr(''), [
  \   'Could not connect',
  \ ])