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local a = require "mason-core.async"
local match = require "luassert.match"
local platform = require "mason-core.platform"
local process = require "mason-core.process"
local spawn = require "mason-core.spawn"
local spy = require "luassert.spy"
local stub = require "luassert.stub"
describe("async spawn", function()
local snapshot
before_each(function()
snapshot = assert.snapshot()
end)
after_each(function()
snapshot:revert()
end)
it("should spawn commands and return stdout & stderr", function()
local result = a.run_blocking(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", function()
local stdout = spy.new()
local stdio = process.StdioSink:new {
stdout = stdout,
}
local result = a.run_blocking(spawn.env, {
env_raw = { "FOO=bar" },
stdio_sink = stdio,
})
assert.is_true(result:is_success())
assert.equals(nil, result:get_or_nil())
-- Not 100 %guaranteed it's only called once because output is always buffered, but it's extremely likely
assert.spy(stdout).was_called(1)
assert.spy(stdout).was_called_with "FOO=bar\n"
end)
it("should pass command arguments", function()
local result = a.run_blocking(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", function()
spy.on(process, "spawn")
local result = a.run_blocking(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.instanceof(process.BufferedSink),
env = match.list_containing "VAR=world",
args = match.tbl_containing {
"-c",
'echo "Hello $VAR"',
},
},
match.is_function()
)
end)
it("should flatten table args", function()
local result = a.run_blocking(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", function()
local on_spawn = spy.new(function(_, stdio)
local stdin = stdio[1]
stdin:write "im so piped rn"
stdin:close()
end)
local result = a.run_blocking(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_table(), match.is_number())
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", function()
local on_spawn = spy.new()
local result = a.run_blocking(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", function()
stub(process, "spawn", function(_, _, callback)
callback(false)
end)
local result = a.run_blocking(spawn.my_cmd, {})
assert.is_true(result:is_failure())
assert.is_nil(result:err_or_nil().exit_code)
end)
it("should format failure message", 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 = a.run_blocking(spawn.bash, {})
assert.is_true(result:is_failure())
assert.equals(
"spawn: bash failed with exit code 127 and signal -. This is an error message for bash!",
tostring(result:err_or_nil())
)
end)
describe("Windows", function()
before_each(function()
platform.is.win = true
end)
after_each(function()
platform.is.win = nil
end)
it("should use exepath to get absolute path to executable", function()
stub(process, "spawn", function(_, _, callback)
callback(true, 0, 0)
end)
local result = a.run_blocking(spawn.bash, { "arg1" })
assert.is_true(result:is_success())
assert.spy(process.spawn).was_called(1)
assert.spy(process.spawn).was_called_with(
vim.fn.exepath "bash",
match.tbl_containing {
args = match.same { "arg1" },
},
match.is_function()
)
end)
it("should not use exepath if env.PATH is set", function()
stub(process, "spawn", function(_, _, callback)
callback(true, 0, 0)
end)
local result = a.run_blocking(spawn.bash, { "arg1", env = { PATH = "C:\\some\\path" } })
assert.is_true(result:is_success())
assert.spy(process.spawn).was_called(1)
assert.spy(process.spawn).was_called_with(
"bash",
match.tbl_containing {
args = match.same { "arg1" },
},
match.is_function()
)
end)
it("should not use exepath if env_raw.PATH is set", function()
stub(process, "spawn", function(_, _, callback)
callback(true, 0, 0)
end)
local result = a.run_blocking(spawn.bash, { "arg1", env_raw = { "PATH=C:\\some\\path" } })
assert.is_true(result:is_success())
assert.spy(process.spawn).was_called(1)
assert.spy(process.spawn).was_called_with(
"bash",
match.tbl_containing {
args = match.same { "arg1" },
},
match.is_function()
)
end)
it("should not use exepath if with_paths is provided", function()
stub(process, "spawn", function(_, _, callback)
callback(true, 0, 0)
end)
local result = a.run_blocking(spawn.bash, { "arg1", with_paths = { "C:\\some\\path" } })
assert.is_true(result:is_success())
assert.spy(process.spawn).was_called(1)
assert.spy(process.spawn).was_called_with(
"bash",
match.tbl_containing {
args = match.same { "arg1" },
},
match.is_function()
)
end)
end)
end)
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