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feat: prevent global mode in async tests #110

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Merged
edgurgel merged 1 commit into from
Jan 17, 2026
Merged

feat: prevent global mode in async tests #110

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9 changes: 8 additions & 1 deletion lib/mimic.ex
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Original file line number Diff line number Diff line change
Expand Up @@ -459,7 +459,14 @@ defmodule Mimic do
```
"""
@spec set_mimic_global(map()) :: :ok
def set_mimic_global(_context \\ %{}), do: Server.set_global_mode(self())
def set_mimic_global(_context \\ %{})

def set_mimic_global(%{async: true}) do
raise "Mimic cannot be set to global mode when the ExUnit case is async. " <>
"If you want to use Mimic in global mode, remove \"async: true\" when using ExUnit.Case"
end

def set_mimic_global(_context), do: Server.set_global_mode(self())

@doc """
Chooses the mode based on ExUnit context. If `async` is `true` then
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7 changes: 7 additions & 0 deletions test/mimic_test.exs
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Original file line number Diff line number Diff line change
Expand Up @@ -1280,4 +1280,11 @@ defmodule Mimic.Test do
end
end
end

describe "set_mimic_global/1" do
test "raises if the test case is async" do
message = ~r/Mimic cannot be set to global mode when the ExUnit case is async/
assert_raise RuntimeError, message, fn -> set_mimic_global(%{async: true}) end
end
end
end
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