Here is a Java translation.

Nice kata!

Lua translation !

• put actual and expected in the right order (resolving this issue)
• added math.randomseed(os.time())
• provided input on failure
• got rid of reference solution
• put fixed and random tests under a single describe

Lua translation !

Briefly: in the returned array every element should not have a bigger number after itself.

OCaml translation

actual and expected are swapped in Lua.

Ruby:

• Reference solution is wrong when output is 0

Expected: nil, instead got: 0

Java tests generate warnings:

Note: src/test/java/SolutionTest.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.

this kata's tests are fully broken in lua

Lua fork

• put expected and actual in the right order
• added math.randomseed
• added syntax highlighting to description
• provided input on failure

Lua fork

• put expected and actual in the right order
• added math.randomseed
• provided input on failure
• added syntax highlighting to description

Lua fork

• put expected and actual in the right order
• provided input on failure
• input mutation is not a problem anymore resolving this issue
• added syntax highlighting to description
• simplified a bit generation of random tests (kept the logic)
• added math.randomseed

Lua translation

• put expected and actual in the right order resolving this issue
• added math.randomseed
• provided inputs on failure
• added syntax highlighting to description resolving this suggestion

Lua translation resolving this issue

• Created a tester function providing input on failure and putting expected and actual/Passed in in the right order.
• corrected typo in description toNumber -> tonumber + added syntax highlighting
• added math.randomseed