pretty-format

Upstream: https://github.com/facebook/jest/tree/v27.4.7/packages/pretty-format

Stringify any Luau value

• Supports Luau builtins and Roblox Instances.
• Can be extended with user defined plugins.

:pencil2: Notes

• :warning: Our prettyFormat doesn't distinguish between Tables, Arrays, Objects, etc. and prints out all Lua table-like types as Table.
  • For example, an empty array is printed as Table {} and an array with values is printed as Table {1, 2, 3,}.
  • printComplexValue is reduced to just arrays and tables.
• :x: Color formatting isn't supported so all related methods are omitted.
• :hammer: Built-in plugins for prettyFormat are not implemented yet.
• prettyFormat formats Roblox DateTime objects as a replacement for JS Date.
• Formats using the Lua native string representations of primitives like nil, nan and inf over the JS null, NaN and Infinity. The tests are modified accordingly.
• Formatting for any Javascript specific types in are omitted, Symbol, named Function, Error, Date, BigInt, etc.
• getConfig is rewritten to avoid ternary operators. loop is rewritten with a for loop instead of an iterator.next().
• Collections.lua deviates from upstream substantially since Lua only has tables. We only have two functions: printTableEntries for formatting key, value pairs and printListItems for formatting arrays.