ExUnit.start [seed: 0]

defmodule Difference do
  @moduledoc """
  This module contains failing tests to see
  difference highlighting in action.
  """
  use ExUnit.Case

  defmodule User do
    defstruct [:age]
  end

  test "integers" do
    assert 491512235 == 490512035
  end

  test "floats" do
    assert 42.0 == 43.0
  end

  test "strings" do
    string1 = "fox hops over \"the dog"
    string2 = "fox jumps over the lazy cat"
    assert string1 == string2
  end

  test "lists" do
    list1 = ["One", :ok, make_ref(), {}]
    list2 = ["Two", :ok, self(), {true}]
    assert list1 == list2
  end

  test "lists; missing entries" do
    assert [] == [1, 2, 3]
  end

  test "lists; surplus entries" do
    assert [1, 2, 3] == []
  end

  test "improper lists" do
    list1 = [1 | "b"]
    list2 = [1, "a"]
    assert list1 == list2
  end

  test "charlists" do
    charlist1 = 'fox hops over \'the dog'
    charlist2 = 'fox jumps over the lazy cat'
    assert charlist1 == charlist2
  end

  test "keyword lists" do
    assert [file: "nofile", line: 12] == [file: nil, llne: 10]
  end

  test "tuples" do
    tuple1 = {:hex, "0.1", [{:ex_doc}]}
    tuple2 = {:hex, "1.1"}
    assert tuple1 == tuple2
  end

  test "maps; mixed diff" do
    map1 = Enum.into(1..40, %{}, &{&1, &1}) |> Map.delete(33)
    map2 = Enum.reduce(5..10, map1, &Map.delete(&2, &1)) |> Map.put(33, 33) |> Map.put(23, 32)
    assert map1 == map2
  end

  test "maps; missing pairs and match" do
    map1 = %{baz: 12}
    map2 = %{foo: 12, bar: 12, baz: 12}
    assert map1 == map2
  end

  test "maps; surplus pairs and match" do
    map1 = %{foo: 12, bar: 12, baz: 12}
    map2 = %{baz: 12}
    assert map1 == map2
  end

  test "maps; missing pair" do
    assert %{} == %{baz: 12}
  end

  test "maps; surplus pair" do
    assert %{baz: 12} == %{}
  end

  test "structs" do
    assert %User{age: 16} == %User{age: 21}
  end
end