Files
bDS2/test/bds/map_utils_test.exs

81 lines
2.6 KiB
Elixir

defmodule BDS.MapUtilsTest do
use ExUnit.Case, async: true
alias BDS.MapUtils
describe "attr/2" do
test "reads atom and string keys while preserving explicit nil" do
assert MapUtils.attr(%{title: "Atom title"}, :title) == "Atom title"
assert MapUtils.attr(%{"title" => "String title"}, :title) == "String title"
assert MapUtils.attr(%{"title" => "fallback", title: nil}, :title) == nil
assert MapUtils.attr(%{}, :title) == nil
end
test "reads with a default while preserving explicit nil and false" do
assert MapUtils.attr(%{}, :published, true) == true
assert MapUtils.attr(%{"published" => false}, :published, true) == false
assert MapUtils.attr(%{"published" => nil}, :published, true) == nil
end
end
describe "maybe_put/3" do
test "skips nil values and keeps other values" do
assert MapUtils.maybe_put(%{}, :title, nil) == %{}
assert MapUtils.maybe_put(%{}, :title, "") == %{title: ""}
assert MapUtils.maybe_put(%{}, :published, false) == %{published: false}
end
end
describe "blank_to_nil/1" do
test "normalizes nil and empty string only" do
assert MapUtils.blank_to_nil(nil) == nil
assert MapUtils.blank_to_nil("") == nil
assert MapUtils.blank_to_nil(" ") == " "
assert MapUtils.blank_to_nil(42) == 42
end
end
describe "atom/string key duality" do
test "shared attr helper is used for same-name atom and string reads" do
root = File.cwd!()
offenders =
[Path.join(root, "lib/**/*.ex"), Path.join(root, "lib/**/*.heex")]
|> Enum.flat_map(&Path.wildcard/1)
|> Enum.flat_map(fn path ->
path
|> File.stream!()
|> Stream.with_index(1)
|> Enum.flat_map(fn {line, line_number} ->
if same_name_dual_key_read?(line) do
["#{Path.relative_to(path, root)}:#{line_number}:#{String.trim(line)}"]
else
[]
end
end)
end)
assert offenders == []
end
end
defp same_name_dual_key_read?(line) do
Regex.match?(
~r/Map\.get\((\w+),\s*:([a-zA-Z_][a-zA-Z0-9_?!]*)\).{0,120}Map\.get\(\1,\s*"\2"\)/,
line
) or
Regex.match?(
~r/Map\.get\((\w+),\s*:([a-zA-Z_][a-zA-Z0-9_?!]*),\s*Map\.get\(\1,\s*"\2"/,
line
) or
Regex.match?(
~r/Map\.get\((\w+),\s*"([a-zA-Z_][a-zA-Z0-9_?!]*)"\).{0,120}Map\.get\(\1,\s*:\2\)/,
line
) or
Regex.match?(
~r/Map\.get\((\w+),\s*"([a-zA-Z_][a-zA-Z0-9_?!]*)",\s*Map\.get\(\1,\s*:\2/,
line
)
end
end