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local spy = require "luassert.spy"
local stub = require "luassert.stub"
local match = require "luassert.match"
local spawn = require "nvim-lsp-installer.core.spawn"
local process = require "nvim-lsp-installer.process"
describe("async spawn", function()
it(
"should spawn commands and return stdout & stderr",
async_test(function()
local result = spawn.env {
env_raw = { "FOO=bar" },
}
assert.is_true(result:is_success())
assert.equals("FOO=bar\n", result:get_or_nil().stdout)
assert.equals("", result:get_or_nil().stderr)
end)
)
it(
"should use provided stdio_sink",
async_test(function()
local stdio = process.in_memory_sink()
local result = spawn.env {
env_raw = { "FOO=bar" },
stdio_sink = stdio.sink,
}
assert.is_true(result:is_success())
assert.equals(nil, result:get_or_nil().stdout)
assert.equals(nil, result:get_or_nil().stderr)
assert.equals("FOO=bar\n", table.concat(stdio.buffers.stdout, ""))
assert.equals("", table.concat(stdio.buffers.stderr, ""))
end)
)
it(
"should pass command arguments",
async_test(function()
local result = spawn.bash {
"-c",
'echo "Hello $VAR"',
env = { VAR = "world" },
}
assert.is_true(result:is_success())
assert.equals("Hello world\n", result:get_or_nil().stdout)
assert.equals("", result:get_or_nil().stderr)
end)
)
it(
"should ignore vim.NIL args",
async_test(function()
spy.on(process, "spawn")
local result = spawn.bash {
vim.NIL,
vim.NIL,
"-c",
{ vim.NIL, vim.NIL },
'echo "Hello $VAR"',
env = { VAR = "world" },
}
assert.is_true(result:is_success())
assert.equals("Hello world\n", result:get_or_nil().stdout)
assert.equals("", result:get_or_nil().stderr)
assert.spy(process.spawn).was_called(1)
assert.spy(process.spawn).was_called_with(
"bash",
match.tbl_containing {
stdio_sink = match.tbl_containing {
stdout = match.is_function(),
stderr = match.is_function(),
},
env = match.list_containing "VAR=world",
args = match.tbl_containing {
"-c",
'echo "Hello $VAR"',
},
},
match.is_function()
)
end)
)
it(
"should flatten table args",
async_test(function()
local result = spawn.bash {
{ "-c", 'echo "Hello $VAR"' },
env = { VAR = "world" },
}
assert.is_true(result:is_success())
assert.equals("Hello world\n", result:get_or_nil().stdout)
assert.equals("", result:get_or_nil().stderr)
end)
)
it(
"should call on_spawn",
async_test(function()
local on_spawn = spy.new(function(_, stdio)
local stdin = stdio[1]
stdin:write "im so piped rn"
stdin:close()
end)
local result = spawn.cat {
{ "-" },
on_spawn = on_spawn,
}
assert.spy(on_spawn).was_called(1)
assert.spy(on_spawn).was_called_with(match.is_not.is_nil(), match.is_not.is_nil())
assert.is_true(result:is_success())
assert.equals("im so piped rn", result:get_or_nil().stdout)
end)
)
it(
"should not call on_spawn if spawning fails",
async_test(function()
local on_spawn = spy.new()
local result = spawn.this_cmd_doesnt_exist {
on_spawn = on_spawn,
}
assert.spy(on_spawn).was_called(0)
assert.is_true(result:is_failure())
end)
)
it(
"should handle failure to spawn process",
async_test(function()
stub(process, "spawn", function(_, _, callback)
callback(false)
end)
local result = spawn.my_cmd {}
assert.is_true(result:is_failure())
assert.is_nil(result:err_or_nil().exit_code)
end)
)
it(
"should format failure message",
async_test(function()
stub(process, "spawn", function(cmd, opts, callback)
opts.stdio_sink.stderr(("This is an error message for %s!"):format(cmd))
callback(false, 127)
end)
local result = spawn.my_cmd {}
assert.is_true(result:is_failure())
assert.equals(
"spawn: my_cmd failed with exit code 127. This is an error message for my_cmd!",
tostring(result:err_or_nil())
)
end)
)
end)
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