Files
firehose/app/test/mutation_config_test.exs
T

50 lines
1.6 KiB
Elixir

defmodule Firehose.MutationConfigTest do
# Same wiring pins as blogex, plus the app-specific one: because the app
# scope is deliberately empty (Q45), the aliases must fail loudly. A sensor
# that reports a score for a run that tested nothing is worse than no sensor.
use ExUnit.Case
test "muex is a dev/test-only, non-runtime dependency" do
deps = Mix.Project.config()[:deps]
assert {:muex, requirement, opts} = dep!(deps, :muex)
assert requirement =~ "0.12"
assert opts[:only] == [:dev, :test]
assert opts[:runtime] == false
end
test "mutate and mutate.fast aliases are defined" do
aliases = Mix.Project.config()[:aliases]
assert is_function(aliases[:mutate], 1)
assert is_function(aliases[:"mutate.fast"], 1)
end
test "an empty app scope fails loudly instead of running over nothing" do
assert_raise Mix.Error, ~r/empty/, fn ->
Firehose.MixProject.mutation_args("mutation_scope.txt", [])
end
end
test "ad-hoc args do not bypass the empty-scope failure" do
assert_raise Mix.Error, ~r/empty/, fn ->
Firehose.MixProject.mutation_args("mutation_scope.txt", [
"--files",
"lib/firehose/accounts/user.ex"
])
end
end
defp dep!(deps, name) do
case Enum.find(deps, fn
{^name, _requirement} -> true
{^name, _requirement, _opts} -> true
_ -> false
end) do
{^name, requirement} -> {name, requirement, []}
{^name, requirement, opts} -> {name, requirement, opts}
nil -> flunk("expected #{inspect(name)} in deps/0")
end
end
end