83 lines
1.8 KiB
Elixir
83 lines
1.8 KiB
Elixir
defmodule BlanksTest do
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use ExUnit.Case, async: true
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test "simple replacement" do
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ast = quote do: 1 + ___
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assert Blanks.replace(ast, 37) == quote(do: 1 + 37)
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end
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test "Work with multiple different replacements" do
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[koan | _] = SampleKoan.all_koans
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assert :ok == apply(SampleKoan, koan, [{:multiple, [3,4]}])
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end
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test "complex example" do
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ast = quote do: assert true == ___
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assert Blanks.replace(ast, true) == quote(do: assert true == true)
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end
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test "multiple arguments" do
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ast = quote do: assert ___ == ___
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assert Blanks.replace(ast, [true, false]) == quote(do: assert true == false)
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end
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test "pins variables in assert_receive replacement" do
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ast = quote do: assert_receive ___
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assert Blanks.replace(ast, Macro.var(:answer, __MODULE__)) == quote(do: assert_receive ^answer)
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end
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test "does not pin values in assert_receive replacement" do
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ast = quote do: assert_receive ___
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assert Blanks.replace(ast, :lolwat) == quote(do: assert_receive :lolwat)
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end
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test "counts simple blanks" do
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ast = quote do: 1 + ___
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assert Blanks.count(ast) == 1
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end
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test "counts multiple blanks" do
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ast = quote do: assert ___ == ___
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assert Blanks.count(ast) == 2
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end
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test "replaces whole line containing blank" do
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ast = quote do
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1 + 2
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2 + ___
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end
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expected_result = quote do
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1 + 2
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true
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end
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actual_result = Blanks.replace_line(ast, fn(_) -> true end)
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assert actual_result == expected_result
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end
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test "replacement fn can access line" do
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ast = quote do
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1 + 2
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2 + ___
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end
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expected_result = quote do
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1 + 2
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some_fun(2 + ___)
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end
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actual_result = Blanks.replace_line(ast, fn(line) ->
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quote do: some_fun(unquote(line))
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end)
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assert actual_result == expected_result
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end
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end
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