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-rw-r--r--test/functional/api/vim_spec.lua149
1 files changed, 134 insertions, 15 deletions
diff --git a/test/functional/api/vim_spec.lua b/test/functional/api/vim_spec.lua
index 6b30c0e81c..ce6c52e334 100644
--- a/test/functional/api/vim_spec.lua
+++ b/test/functional/api/vim_spec.lua
@@ -1,4 +1,3 @@
--- Sanity checks for vim_* API calls via msgpack-rpc
local helpers = require('test.functional.helpers')(after_each)
local Screen = require('test.functional.ui.screen')
local NIL = helpers.NIL
@@ -9,10 +8,10 @@ local meths = helpers.meths
local funcs = helpers.funcs
local request = helpers.request
-describe('vim_* functions', function()
+describe('api', function()
before_each(clear)
- describe('command', function()
+ describe('nvim_command', function()
it('works', function()
local fname = helpers.tmpname()
nvim('command', 'new')
@@ -29,9 +28,18 @@ describe('vim_* functions', function()
f:close()
os.remove(fname)
end)
+
+ it("VimL error: fails (VimL error), does NOT update v:errmsg", function()
+ -- Most API methods return generic errors (or no error) if a VimL
+ -- expression fails; nvim_command returns the VimL error details.
+ local status, rv = pcall(nvim, "command", "bogus_command")
+ eq(false, status) -- nvim_command() failed.
+ eq("E492:", string.match(rv, "E%d*:")) -- VimL error was returned.
+ eq("", nvim("eval", "v:errmsg")) -- v:errmsg was not updated.
+ end)
end)
- describe('eval', function()
+ describe('nvim_eval', function()
it('works', function()
nvim('command', 'let g:v1 = "a"')
nvim('command', 'let g:v2 = [1, 2, {"v3": 3}]')
@@ -46,18 +54,41 @@ describe('vim_* functions', function()
it('works under deprecated name', function()
eq(2, request("vim_eval", "1+1"))
end)
+
+ it("VimL error: fails (generic error), does NOT update v:errmsg", function()
+ local status, rv = pcall(nvim, "eval", "bogus expression")
+ eq(false, status) -- nvim_eval() failed.
+ ok(nil ~= string.find(rv, "Failed to evaluate expression"))
+ eq("", nvim("eval", "v:errmsg")) -- v:errmsg was not updated.
+ end)
end)
- describe('call_function', function()
+ describe('nvim_call_function', function()
it('works', function()
nvim('call_function', 'setqflist', {{{ filename = 'something', lnum = 17}}, 'r'})
eq(17, nvim('call_function', 'getqflist', {})[1].lnum)
eq(17, nvim('call_function', 'eval', {17}))
eq('foo', nvim('call_function', 'simplify', {'this/./is//redundant/../../../foo'}))
end)
+
+ it("VimL error: fails (generic error), does NOT update v:errmsg", function()
+ local status, rv = pcall(nvim, "call_function", "bogus function", {"arg1"})
+ eq(false, status) -- nvim_call_function() failed.
+ ok(nil ~= string.find(rv, "Error calling function"))
+ eq("", nvim("eval", "v:errmsg")) -- v:errmsg was not updated.
+ end)
end)
- describe('strwidth', function()
+ describe('nvim_input', function()
+ it("VimL error: does NOT fail, updates v:errmsg", function()
+ local status, _ = pcall(nvim, "input", ":call bogus_fn()<CR>")
+ local v_errnum = string.match(nvim("eval", "v:errmsg"), "E%d*:")
+ eq(true, status) -- nvim_input() did not fail.
+ eq("E117:", v_errnum) -- v:errmsg was updated.
+ end)
+ end)
+
+ describe('nvim_strwidth', function()
it('works', function()
eq(3, nvim('strwidth', 'abc'))
-- 6 + (neovim)
@@ -70,7 +101,7 @@ describe('vim_* functions', function()
end)
end)
- describe('{get,set}_current_line', function()
+ describe('nvim_get_current_line, nvim_set_current_line', function()
it('works', function()
eq('', nvim('get_current_line'))
nvim('set_current_line', 'abc')
@@ -78,7 +109,7 @@ describe('vim_* functions', function()
end)
end)
- describe('{get,set,del}_var', function()
+ describe('nvim_get_var, nvim_set_var, nvim_del_var', function()
it('works', function()
nvim('set_var', 'lua', {1, 2, {['3'] = 1}})
eq({1, 2, {['3'] = 1}}, nvim('get_var', 'lua'))
@@ -109,7 +140,7 @@ describe('vim_* functions', function()
end)
end)
- describe('{get,set}_option', function()
+ describe('nvim_get_option, nvim_set_option', function()
it('works', function()
ok(nvim('get_option', 'equalalways'))
nvim('set_option', 'equalalways', false)
@@ -117,7 +148,7 @@ describe('vim_* functions', function()
end)
end)
- describe('{get,set}_current_buf and list_bufs', function()
+ describe('nvim_{get,set}_current_buf, nvim_list_bufs', function()
it('works', function()
eq(1, #nvim('list_bufs'))
eq(nvim('list_bufs')[1], nvim('get_current_buf'))
@@ -129,7 +160,7 @@ describe('vim_* functions', function()
end)
end)
- describe('{get,set}_current_win and list_wins', function()
+ describe('nvim_{get,set}_current_win, nvim_list_wins', function()
it('works', function()
eq(1, #nvim('list_wins'))
eq(nvim('list_wins')[1], nvim('get_current_win'))
@@ -142,7 +173,7 @@ describe('vim_* functions', function()
end)
end)
- describe('{get,set}_current_tabpage and list_tabpages', function()
+ describe('nvim_{get,set}_current_tabpage, nvim_list_tabpages', function()
it('works', function()
eq(1, #nvim('list_tabpages'))
eq(nvim('list_tabpages')[1], nvim('get_current_tabpage'))
@@ -161,7 +192,7 @@ describe('vim_* functions', function()
end)
end)
- describe('replace_termcodes', function()
+ describe('nvim_replace_termcodes', function()
it('escapes K_SPECIAL as K_SPECIAL KS_SPECIAL KE_FILLER', function()
eq('\128\254X', helpers.nvim('replace_termcodes', '\128', true, true, true))
end)
@@ -183,7 +214,7 @@ describe('vim_* functions', function()
end)
end)
- describe('feedkeys', function()
+ describe('nvim_feedkeys', function()
it('CSI escaping', function()
local function on_setup()
-- notice the special char(…) \xe2\80\xa6
@@ -210,7 +241,7 @@ describe('vim_* functions', function()
end)
end)
- describe('err_write', function()
+ describe('nvim_err_write', function()
local screen
before_each(function()
@@ -298,6 +329,94 @@ describe('vim_* functions', function()
end)
end)
+ describe('nvim_call_atomic', function()
+ it('works', function()
+ meths.buf_set_lines(0, 0, -1, true, {'first'})
+ local req = {
+ {'nvim_get_current_line', {}},
+ {'nvim_set_current_line', {'second'}},
+ }
+ eq({{'first', NIL}, NIL}, meths.call_atomic(req))
+ eq({'second'}, meths.buf_get_lines(0, 0, -1, true))
+ end)
+
+ it('allows multiple return values', function()
+ local req = {
+ {'nvim_set_var', {'avar', true}},
+ {'nvim_set_var', {'bvar', 'string'}},
+ {'nvim_get_var', {'avar'}},
+ {'nvim_get_var', {'bvar'}},
+ }
+ eq({{NIL, NIL, true, 'string'}, NIL}, meths.call_atomic(req))
+ end)
+
+ it('is aborted by errors in call', function()
+ local error_types = meths.get_api_info()[2].error_types
+ local req = {
+ {'nvim_set_var', {'one', 1}},
+ {'nvim_buf_set_lines', {}},
+ {'nvim_set_var', {'two', 2}},
+ }
+ eq({{NIL}, {1, error_types.Exception.id,
+ 'Wrong number of arguments: expecting 5 but got 0'}},
+ meths.call_atomic(req))
+ eq(1, meths.get_var('one'))
+ eq(false, pcall(meths.get_var, 'two'))
+
+ -- still returns all previous successful calls
+ req = {
+ {'nvim_set_var', {'avar', 5}},
+ {'nvim_set_var', {'bvar', 'string'}},
+ {'nvim_get_var', {'avar'}},
+ {'nvim_buf_get_lines', {0, 10, 20, true}},
+ {'nvim_get_var', {'bvar'}},
+ }
+ eq({{NIL, NIL, 5}, {3, error_types.Validation.id, 'Index out of bounds'}},
+ meths.call_atomic(req))
+
+ req = {
+ {'i_am_not_a_method', {'xx'}},
+ {'nvim_set_var', {'avar', 10}},
+ }
+ eq({{}, {0, error_types.Exception.id, 'Invalid method name'}},
+ meths.call_atomic(req))
+ eq(5, meths.get_var('avar'))
+ end)
+
+ it('throws error on malformated arguments', function()
+ local req = {
+ {'nvim_set_var', {'avar', 1}},
+ {'nvim_set_var'},
+ {'nvim_set_var', {'avar', 2}},
+ }
+ local status, err = pcall(meths.call_atomic, req)
+ eq(false, status)
+ ok(err:match(' All items in calls array must be arrays of size 2') ~= nil)
+ -- call before was done, but not after
+ eq(1, meths.get_var('avar'))
+
+ req = {
+ {'nvim_set_var', {'bvar', {2,3}}},
+ 12,
+ }
+ status, err = pcall(meths.call_atomic, req)
+ eq(false, status)
+ ok(err:match('All items in calls array must be arrays') ~= nil)
+ eq({2,3}, meths.get_var('bvar'))
+
+ req = {
+ {'nvim_set_current_line', 'little line'},
+ {'nvim_set_var', {'avar', 3}},
+ }
+ status, err = pcall(meths.call_atomic, req)
+ eq(false, status)
+ ok(err:match('args must be Array') ~= nil)
+ -- call before was done, but not after
+ eq(1, meths.get_var('avar'))
+ eq({''}, meths.buf_get_lines(0, 0, -1, true))
+ end)
+ end)
+
it('can throw exceptions', function()
local status, err = pcall(nvim, 'get_option', 'invalid-option')
eq(false, status)