[READY] Fix issue in EventNotification tests
While I was reviewing PR #1905, I found an issue with the `EventNotification` tests. It's easy to reproduce. You just need to comment [this line in `python/ycm/youcompleteme.py`](https://github.com/Valloric/YouCompleteMe/blob/master/python/ycm/youcompleteme.py#L508) and run the tests. With this change, the `EventNotification` tests should fail since the second call of `ValidateParseRequest` re-raises the warning. However, tests are still passing because `assert_has_calls` does not check if a call was not made. For example, if `functionA` is called twice, both `assert_has_calls( [ functionA ] )` and `assert_has_calls( [ functionA, functionA ] )` are successful.
To fix this, we just need to check the number of calls using `call_count`. This is done by creating a subclass of `MagicMock` implementing the `assert_has_exact_calls` method and using it in tests.
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[READY] Implement new strategy to find the Python interpreter path
See discussion in issue #1891 for details.
Implement a new strategy to find the Python interpreter path:
- if specified, use `g:ycm_path_to_python_interpreter` option.
- on UNIX platforms, use `sys.executable` as the path to Python interpreter;
- on Windows, deduce it from `os.__file__` path (it should always be in the parent folder).
In all cases, check the version (2.6 or 2.7) of the Python interpreter path by running it.
This PR may break things. It needs thorough testing.
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assert_has_calls is not enough to check if a call didn't raise a
warning. We also need to check the number of calls. This is done by
creating a subclass of MagicMock implementing the
assert_has_exact_calls method.
OmniCompletionRequest is missing the RawResponse method, so any attempt to call
it calls the base class method instead. However, since the data structures of
this class and base class are different, this causes an error.
Rename CheckPythonVersion to IsPythonVersionCorrect.
In embedders, sys.executable may contain a Vim path instead of a Python
one. To avoid starting a Vim instance in this case, we check that given
path ends with a Python 2.6 or 2.7 name using a regex.
Add tests for this regex.
If the check for available completers isn't run because the server isn't
alive, or the check request erred or times out, don't cache the result. Only
cache valid returns.
[READY] Update notifications when ycmd server crashed
Instead of printing the last 30 lines of the `stderr` logfile if the server crashed, we tell the user to run the `:YcmToggleLogs stderr` command to check the logs.
Remove `SERVER_CRASH_MESSAGE_SAME_STDERR` message because we are always using the `stderr` logfile since PR #1753. Also, console ouput cannot be used to see the logs.
Simplify `_NotifyUserIfServerCrashed` method by using `CheckFilename` function from `vimsupport` module.
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Vim's QuickFix lists require 1-based columns, which is what is returned
from ycmd's commands.
As noted in the comments, the Vim documentation for setqflist is
somewhat vague about this "byte offset", but it is confirmed to mean
"1-based column number" both in testing and in :help getqflist.
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.
