description says input is always an array not including non integer or non float elements. test case passes just a string

Use Test.assert_equals

• description is contradictory with tests: "Inputs are always populated (non-empty) arrays" -- however, empty arrays are tested
• description poorly formatted
• no sample tests
• no random tests
• overrated -- this is max 7 kyu

The word "dice" is plural. When you only have one of them, it's called a die.