-
Notifications
You must be signed in to change notification settings - Fork 6
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge pull request #41 from ma2gedev/feature/split-render-code
Refactor rendering code
- Loading branch information
Showing
3 changed files
with
157 additions
and
124 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,132 @@ | ||
| defmodule PowerAssert.Renderer do | ||
| @moduledoc false | ||
|
|
||
| alias PowerAssert.PositionAndValue | ||
|
|
||
| @doc """ | ||
| renders test result | ||
| """ | ||
| def render(code_ast, position_and_values, lhs_result \\ nil, rhs_result \\ nil) | ||
|
|
||
| def render(code_ast, [], lhs_result, rhs_result) do | ||
| Macro.to_string(code_ast) <> extra_information(lhs_result, rhs_result) | ||
| end | ||
|
|
||
| def render(code_ast, position_and_values, lhs_result, rhs_result) do | ||
| code_str = Macro.to_string(code_ast) | ||
|
|
||
| position_and_values = | ||
| Enum.sort(position_and_values, fn %PositionAndValue{position: x_pos}, | ||
| %PositionAndValue{position: y_pos} -> | ||
| x_pos > y_pos | ||
| end) | ||
|
|
||
| %PositionAndValue{position: max_pos} = | ||
| Enum.max_by(position_and_values, fn %PositionAndValue{position: pos} -> pos end) | ||
|
|
||
| first_line = String.duplicate(" ", max_pos + 1) |> replace_with_bar(position_and_values) | ||
| lines = make_lines([], Enum.count(position_and_values), position_and_values, -1) | ||
| Enum.join([code_str, first_line] ++ lines, "\n") <> extra_information(lhs_result, rhs_result) | ||
| end | ||
|
|
||
| defp make_lines(lines, 0, _, _latest_pos) do | ||
| lines | ||
| end | ||
|
|
||
| defp make_lines(lines, times, position_and_values, latest_pos) do | ||
| [%PositionAndValue{position: pos, value: value} | t] = position_and_values | ||
| value = inspect(value) | ||
| value_len = String.length(value) | ||
|
|
||
| lines = | ||
| if latest_pos != -1 && latest_pos - (pos + value_len) > 0 do | ||
| [last_line | tail_lines] = Enum.reverse(lines) | ||
| {before_str, after_str} = String.split_at(last_line, pos) | ||
| {_removed_str, after_str} = String.split_at(after_str, value_len) | ||
| line = before_str <> value <> after_str | ||
| Enum.reverse([line | tail_lines]) | ||
| else | ||
| line = String.duplicate(" ", pos + 1) | ||
| line = replace_with_bar(line, position_and_values) | ||
| line = String.replace(line, ~r/\|$/, value) | ||
| lines ++ [line] | ||
| end | ||
|
|
||
| make_lines(lines, times - 1, t, pos) | ||
| end | ||
|
|
||
| defp replace_with_bar(line, position_and_values) do | ||
| Enum.reduce(position_and_values, line, fn %PositionAndValue{position: pos}, line -> | ||
| {front, back} = String.split_at(line, pos + 1) | ||
| String.replace(front, ~r/ $/, "|") <> back | ||
| end) | ||
| end | ||
|
|
||
| defp extra_information(lhs_result, rhs_result) | ||
| when is_list(lhs_result) and is_list(rhs_result) do | ||
| [ | ||
| "\n\nonly in lhs: " <> ((lhs_result -- rhs_result) |> inspect), | ||
| "only in rhs: " <> ((rhs_result -- lhs_result) |> inspect) | ||
| ] | ||
| |> Enum.join("\n") | ||
| end | ||
|
|
||
| defp extra_information(lhs_result, rhs_result) when is_map(lhs_result) and is_map(rhs_result) do | ||
| lhs_result = Map.delete(lhs_result, :__struct__) | ||
| rhs_result = Map.delete(rhs_result, :__struct__) | ||
| in_left = Map.split(lhs_result, Map.keys(rhs_result)) |> elem(1) | ||
| in_right = Map.split(rhs_result, Map.keys(lhs_result)) |> elem(1) | ||
| str = "\n" | ||
|
|
||
| str = | ||
| if map_size(in_left) != 0 do | ||
| str <> "\nonly in lhs: " <> inspect(in_left) | ||
| else | ||
| str | ||
| end | ||
|
|
||
| str = | ||
| if map_size(in_right) != 0 do | ||
| str <> "\nonly in rhs: " <> inspect(in_right) | ||
| else | ||
| str | ||
| end | ||
|
|
||
| diff = collect_map_diff(lhs_result, rhs_result) | ||
|
|
||
| str = | ||
| case Enum.empty?(diff) do | ||
| true -> str | ||
| false -> str <> "\ndifference:\n" <> Enum.join(diff, "\n") | ||
| end | ||
|
|
||
| str | ||
| end | ||
|
|
||
| defp extra_information(lhs_result, rhs_result) do | ||
| if String.valid?(lhs_result) && String.valid?(rhs_result) do | ||
| extra_information_for_string(lhs_result, rhs_result) | ||
| else | ||
| "" | ||
| end | ||
| end | ||
|
|
||
| defp extra_information_for_string(lhs_result, rhs_result) do | ||
| "\n\ndifference:" <> "\n" <> lhs_result <> "\n" <> rhs_result | ||
| end | ||
|
|
||
| defp collect_map_diff(map1, map2) do | ||
| Enum.reduce(map2, [], fn {k, v}, acc -> | ||
| case Map.fetch(map1, k) do | ||
| {:ok, ^v} -> | ||
| acc | ||
|
|
||
| {:ok, map1_value} -> | ||
| acc ++ ["key #{inspect(k)} => {#{inspect(map1_value)}, #{inspect(v)}}"] | ||
|
|
||
| _ -> | ||
| acc | ||
| end | ||
| end) | ||
| end | ||
| end |