test_host.py

# -*- coding: utf-8 -*-
from pynvim.plugin.host import Host, host_method_spec
from pynvim.plugin.script_host import ScriptHost


def test_host_imports(vim):
    h = ScriptHost(vim)
    assert h.module.__dict__['vim']
    assert h.module.__dict__['vim'] == h.legacy_vim
    assert h.module.__dict__['sys']


def test_host_clientinfo(vim):
    h = Host(vim)
    assert h._request_handlers.keys() == host_method_spec.keys()
    assert 'remote' == vim.api.get_chan_info(vim.channel_id)['client']['type']
    h._load([])
    assert 'host' == vim.api.get_chan_info(vim.channel_id)['client']['type']


# Smoke test for Host._on_error_event(). #425
def test_host_async_error(vim):
    h = Host(vim)
    h._load([])
    # Invoke a bogus Ex command via notify (async).
    vim.command("lolwut", async_=True)
    event = vim.next_message()
    assert event[1] == 'nvim_error_event'
    assert 'rplugin-host: Async request caused an error:\nboom\n' \
           in h._on_error_event(None, 'boom')

def test_legacy_vim_eval(vim):
    h = ScriptHost(vim)
    assert h.legacy_vim.eval('1') == '1'
    assert h.legacy_vim.eval('v:null') == None
    assert h.legacy_vim.eval('v:true') == True
    assert h.legacy_vim.eval('v:false') == False