8 files changed, 16 insertions, 16 deletions
diff --git a/autoload/ale/handlers/xo.vim b/autoload/ale/handlers/xo.vim
index 0bea74e4..df2659da 100644
--- a/autoload/ale/handlers/xo.vim
+++ b/autoload/ale/handlers/xo.vim
@@ -29,7 +29,7 @@ function! ale#handlers#xo#HandleJSON(buffer, lines) abort
 endfunction
 
 function! ale#handlers#xo#GetProjectRoot(buffer) abort
-    let l:package_path = ale#path#FindNearestFile(a:buffer, 'package.json')
+    let l:modules_dir = ale#path#FindNearestDirectory(a:buffer, 'node_modules')
 
-    return empty(l:package_path) ? '' : fnamemodify(l:package_path, ':p:h')
+    return empty(l:modules_dir) ? '' : fnamemodify(l:modules_dir, ':h:h')
 endfunction
diff --git a/test/fixers/test_xo_fixer_callback.vader b/test/fixers/test_xo_fixer_callback.vader
index ffbecb6c..c676bd34 100644
--- a/test/fixers/test_xo_fixer_callback.vader
+++ b/test/fixers/test_xo_fixer_callback.vader
@@ -7,39 +7,39 @@ After:
   call ale#assert#TearDownFixerTest()
 
 Execute(The xo callback should return the correct default values):
-  call ale#test#SetFilename('../eslint-test-files/react-app/subdir/testfile.js')
+  call ale#test#SetFilename('../xo-test-files/monorepo/packages/a/index.js')
 
   AssertFixer
   \ {
   \   'read_temporary_file': 1,
   \   'command': (has('win32') ? 'node.exe ' : '')
-  \     . ale#Escape(ale#path#Simplify(g:dir . '/../eslint-test-files/react-app/node_modules/xo/cli.js'))
+  \     . ale#Escape(ale#path#Simplify(g:dir . '/../xo-test-files/monorepo/node_modules/xo/cli.js'))
   \     . ' --fix %t',
   \ }
 
 Execute(The xo callback should include custom xo options):
   let g:ale_javascript_xo_options = '--space'
-  call ale#test#SetFilename('../eslint-test-files/react-app/subdir/testfile.js')
+  call ale#test#SetFilename('../xo-test-files/monorepo/packages/a/index.js')
 
   AssertFixer
   \ {
   \   'read_temporary_file': 1,
   \   'command': (has('win32') ? 'node.exe ' : '')
-  \     . ale#Escape(ale#path#Simplify(g:dir . '/../eslint-test-files/react-app/node_modules/xo/cli.js'))
+  \     . ale#Escape(ale#path#Simplify(g:dir . '/../xo-test-files/monorepo/node_modules/xo/cli.js'))
   \     . ' --fix %t'
   \     . ' --space',
   \ }
 
 Execute(--stdin should be used when xo is new enough):
   let g:ale_javascript_xo_options = '--space'
-  call ale#test#SetFilename('../eslint-test-files/react-app/subdir/testfile.js')
+  call ale#test#SetFilename('../xo-test-files/monorepo/packages/a/index.js')
 
   GivenCommandOutput ['0.30.0']
   AssertFixer
   \ {
-  \   'command': ale#path#CdString(ale#path#Simplify(g:dir . '/../eslint-test-files'))
+  \   'command': ale#path#CdString(ale#path#Simplify(g:dir . '/../xo-test-files/monorepo'))
   \     . (has('win32') ? 'node.exe ' : '')
-  \     . ale#Escape(ale#path#Simplify(g:dir . '/../eslint-test-files/react-app/node_modules/xo/cli.js'))
+  \     . ale#Escape(ale#path#Simplify(g:dir . '/../xo-test-files/monorepo/node_modules/xo/cli.js'))
   \     . ' --stdin --stdin-filename %s'
   \     . ' --fix'
   \     . ' --space',
diff --git a/test/fixers/test_xots_fixer_callback.vader b/test/fixers/test_xots_fixer_callback.vader
index a26ec03c..6c8b448c 100644
--- a/test/fixers/test_xots_fixer_callback.vader
+++ b/test/fixers/test_xots_fixer_callback.vader
@@ -7,39 +7,39 @@ After:
   call ale#assert#TearDownFixerTest()
 
 Execute(The xo callback should return the correct default values):
-  call ale#test#SetFilename('../eslint-test-files/react-app/subdir/testfile.ts')
+  call ale#test#SetFilename('../xo-test-files/monorepo/packages/a/index.ts')
 
   AssertFixer
   \ {
   \   'read_temporary_file': 1,
   \   'command': (has('win32') ? 'node.exe ' : '')
-  \     . ale#Escape(ale#path#Simplify(g:dir . '/../eslint-test-files/react-app/node_modules/xo/cli.js'))
+  \     . ale#Escape(ale#path#Simplify(g:dir . '/../xo-test-files/monorepo/node_modules/xo/cli.js'))
   \     . ' --fix %t',
   \ }
 
 Execute(The xo callback should include custom xo options):
   let g:ale_typescript_xo_options = '--space'
-  call ale#test#SetFilename('../eslint-test-files/react-app/subdir/testfile.ts')
+  call ale#test#SetFilename('../xo-test-files/monorepo/packages/a/index.ts')
 
   AssertFixer
   \ {
   \   'read_temporary_file': 1,
   \   'command': (has('win32') ? 'node.exe ' : '')
-  \     . ale#Escape(ale#path#Simplify(g:dir . '/../eslint-test-files/react-app/node_modules/xo/cli.js'))
+  \     . ale#Escape(ale#path#Simplify(g:dir . '/../xo-test-files/monorepo/node_modules/xo/cli.js'))
   \     . ' --fix %t'
   \     . ' --space',
   \ }
 
 Execute(--stdin should be used when xo is new enough):
   let g:ale_typescript_xo_options = '--space'
-  call ale#test#SetFilename('../eslint-test-files/react-app/subdir/testfile.ts')
+  call ale#test#SetFilename('../xo-test-files/monorepo/packages/a/index.ts')
 
   GivenCommandOutput ['0.30.0']
   AssertFixer
   \ {
-  \   'command': ale#path#CdString(ale#path#Simplify(g:dir . '/../eslint-test-files'))
+  \   'command': ale#path#CdString(ale#path#Simplify(g:dir . '/../xo-test-files/monorepo'))
   \     . (has('win32') ? 'node.exe ' : '')
-  \     . ale#Escape(ale#path#Simplify(g:dir . '/../eslint-test-files/react-app/node_modules/xo/cli.js'))
+  \     . ale#Escape(ale#path#Simplify(g:dir . '/../xo-test-files/monorepo/node_modules/xo/cli.js'))
   \     . ' --stdin --stdin-filename %s'
   \     . ' --fix'
   \     . ' --space',
diff --git a/test/xo-test-files/monorepo/node_modules/xo/cli.js b/test/xo-test-files/monorepo/node_modules/xo/cli.js
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/xo-test-files/monorepo/node_modules/xo/cli.js
diff --git a/test/xo-test-files/monorepo/package.json b/test/xo-test-files/monorepo/package.json
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/xo-test-files/monorepo/package.json
diff --git a/test/xo-test-files/monorepo/packages/a/index.js b/test/xo-test-files/monorepo/packages/a/index.js
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/xo-test-files/monorepo/packages/a/index.js
diff --git a/test/xo-test-files/monorepo/packages/a/index.ts b/test/xo-test-files/monorepo/packages/a/index.ts
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/xo-test-files/monorepo/packages/a/index.ts
diff --git a/test/xo-test-files/monorepo/packages/a/package.json b/test/xo-test-files/monorepo/packages/a/package.json
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/xo-test-files/monorepo/packages/a/package.json