Previously, running postcomplete_tests.py could lead to MagicMock objects being
left around within the ycm modules. This lead to random test failures in other
modules.
Further, by using mock.patch appropriately, tests withing postcomplete_tests.py
no longer rely on mocking performed by previous tests (and can be successfully
run individually)
Set buffer filetypes for UltiSnips
Currently, only `all` snippets are displayed by YCM because UltiSnips is called without setting the buffer filetypes. See issue #1818.
This is fixed by using UltiSnips methods `reset_buffer_filetypes` and `add_buffer_filetypes`.
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If already opened logfiles are not visible (hidden buffers or in another
tab), close them and open new ones. It fixes the issue where the command
seems to do nothing even though it actually close the non-visible logfiles.
Mock buffers as a list of buffers where each buffer is represented
as a dictionary containing its filename, its number, and optionally
its associated window.
Test buffer visibility instead of existence.
Mock Vim wipeout command.
Refactor Vim mocks.
We display the detailed info text in the preview window. Vim's preview window is
designed to display actual files, not scratch data. Our approach is to open a
temporary file, even though that file is never written. This way, all of Vim's
existing settings for the preview window (and people's configured mappings) just
work. This is also consistent with showing the documentation in the preview
window during completion.
Other plugins have more complicated functions for this (such as eclim), or
Scratch.vim, but this approach is simple and doesn't require external
dependencies or additional settings.
Tests:
This required fixing a sort-of-bug in which the mock'd Vim module was always
only set once, and could not be changed outside of the module which created it.
This meant that it wasn't easy to have arbitrary tests, because it was dependent
on the order in which the tests execute as to whether the return from
MockVimModule() was actually the one in use.
The solution was to make the mock'd vim module a singleton, and use mock's
patch decorator to assign new MagicMock() instances to those methods in the vim
module which a particular test is interested in.
Correct FixIt chunks sorting
While playing with FixIts in C++, I found the following issue. When fixing the third line in the code:
```cpp
template<int Value> struct CT { template<typename> struct Inner; };
CT<10 >> 2> ct; // expected-warning{{require parentheses}}
```
the following result is obtained:
```cpp
CT<1(0 >> 2)> ct; // expected-warning{{require parentheses}}
```
which is obviously wrong.
The issue is YouCompleteMe does not replace the chunks in the right order. It starts by adding the closing parenthesis, add one to the delta and inserts the opening parenthesis in the wrong place cause of the delta.
We actually use the expression `str(line) + ',' + str(column)` to sort the chunks by line then column whereas it should simply be `(line, column)`.
This PR fixes this issue, adds two tests which are failing in the current version, refactors the `_HandleFixitResponse` function and cleans up code.
Add a new vim hook on CompleteDone. This hook is called when a
completions is selected.
When forcing semantic completion with the keybind, C# completions can
return a list of importable types. These types are from namespaces which
havn't been imported, and thus are not valid to use without also adding
their namespace's import statement. This change makes YCM automatically
insert the necessary using statement to import that namespace on
completion completion. In the case there are multiple possible
namespaces, it prompts you to choose one.
Executing the check_core_version.py script with SafePopen and stdin to
PIPE raises an error in Vim on Windows. Since the stdin option is only
useful when starting the ycmd server, it is only set in this case.
Another way in which the commit d768447 forced the client to wait for
the server to start was the UpdateDiagnosticNotifications call from the
FileReadyToParse which is called right after a buffer is loaded. In any
way if we don't have any previous FileReadyToParse request done for the
current file we bail out, so we we can wait for a FileReadyToParse
response to be available before asking if a completer is usable for the
current filetype.
ref: #1529
Previously we were checking if the `hook.py` file existed for the given
filetype. ycmd has an endpoint for checking if given a filetype a
semantic completer is available. To avoid redundant requests we cache
those requests for every filetype. A semantic engine cannot be added
*after* the ycmd server is started so to avoid redundant requests we
cache those requests for every filetype and we clear the cache at server
setup, in this way if we issue a `YcmRestartServer` command the server
will be setup again and if a semantic completer is available we can use
it. Should fix#1284.
