1 files changed, 70 insertions, 0 deletions
diff --git a/test/test_conflicting_plugin_warnings.vader b/test/test_conflicting_plugin_warnings.vader
new file mode 100644
index 00000000..ebf53c8a
--- /dev/null
+++ b/test/test_conflicting_plugin_warnings.vader
@@ -0,0 +1,70 @@
+Execute(The after file should have been loaded for real):
+  Assert g:loaded_ale_after
+
+Before:
+  silent! cd /testplugin/test
+  cd ..
+  unlet! g:loaded_ale_after
+
+After:
+  cd test
+  let g:loaded_ale_after = 1
+  let g:ale_emit_conflict_warnings = 1
+  unlet! g:loaded_syntastic_plugin
+  unlet! g:loaded_neomake
+  unlet! g:loaded_validator_plugin
+
+Execute(ALE should not warn when nothing extra is installed):
+  " Nothing should be thrown when loading the after file.
+  source after/plugin/ale.vim
+
+Execute(ALE should warn users when Syntastic is installed):
+  let g:loaded_syntastic_plugin = 1
+
+  AssertThrows source after/plugin/ale.vim
+  AssertEqual
+  \ 'ALE conflicts with Syntastic'
+  \ . '. Uninstall it, or disable this warning with '
+  \ . '`let g:ale_emit_conflict_warnings = 0` in your vimrc file, '
+  \ . '*before* plugins are loaded.',
+  \ g:vader_exception
+
+Execute(ALE should not warn about Syntastic when the flag is set):
+  let g:loaded_syntastic_plugin = 1
+  let g:ale_emit_conflict_warnings = 0
+
+  source after/plugin/ale.vim
+
+Execute(ALE should warn users when Neomake is installed):
+  let g:loaded_neomake = 1
+
+  AssertThrows source after/plugin/ale.vim
+  AssertEqual
+  \ 'ALE conflicts with Neomake'
+  \ . '. Uninstall it, or disable this warning with '
+  \ . '`let g:ale_emit_conflict_warnings = 0` in your vimrc file, '
+  \ . '*before* plugins are loaded.',
+  \ g:vader_exception
+
+Execute(ALE should not warn about Neomake when the flag is set):
+  let g:loaded_neomake = 1
+  let g:ale_emit_conflict_warnings = 0
+
+  source after/plugin/ale.vim
+
+Execute(ALE should warn users when Validator is installed):
+  let g:loaded_validator_plugin = 1
+
+  AssertThrows source after/plugin/ale.vim
+  AssertEqual
+  \ 'ALE conflicts with Validator'
+  \ . '. Uninstall it, or disable this warning with '
+  \ . '`let g:ale_emit_conflict_warnings = 0` in your vimrc file, '
+  \ . '*before* plugins are loaded.',
+  \ g:vader_exception
+
+Execute(ALE should not warn about Validator when the flag is set):
+  let g:loaded_validator_plugin = 1
+  let g:ale_emit_conflict_warnings = 0
+
+  source after/plugin/ale.vim