---
test case: valid key with no parameters
in:
  key: 'key'
out:
  key: 'key'
  parameters: []
  types: []
---
test case: valid key with empty brackets
in:
  key: 'key[]'
out:
  key: 'key'
  parameters: ['']
  types: ['undefined']
---
test case: valid key with quoted empty string in brackets
in:
  key: 'key[""]'
out:
  key: 'key'
  parameters: ['']
  types: ['string']
---
test case: valid key with space in brackets
in:
  key: 'key[ ]'
out:
  key: 'key'
  parameters: ['']
  types: ['undefined']
---
test case: valid key with leading space before quoted empty string in brackets
in:
  key: 'key[ ""]'
out:
  key: 'key'
  parameters: ['']
  types: ['string']
---
test case: valid key with leading and trailing spaces around quoted empty string in brackets
in:
  key: 'key[ "" ]'
out:
  key: 'key'
  parameters: ['']
  types: ['string']
---
test case: valid key with 'a' in brackets
in:
  key: 'key[a]'
out:
  key: 'key'
  parameters: ['a']
  types: ['string']
---
test case: valid key with leading space before 'a' in brackets
in:
  key: 'key[ a]'
out:
  key: 'key'
  parameters: ['a']
  types: ['string']
---
test case: valid key with leading and trailing spaces around 'a' in brackets
in:
  key: 'key[ a ]'
out:
  key: 'key'
  parameters: ['a ']
  types: ['string']
---
test case: valid key with quoted 'a' in brackets
in:
  key: 'key["a"]'
out:
  key: 'key'
  parameters: ['a']
  types: ['string']
---
test case: valid key with quoted 'a' followed by comma in brackets
in:
  key: 'key["a",]'
out:
  key: 'key'
  parameters: ['a', '']
  types: ['string', 'undefined']
---
test case: valid key with unquoted 'a' followed by comma in brackets
in:
  key: 'key[a,]'
out:
  key: 'key'
  parameters: ['a', '']
  types: ['string', 'undefined']
---
test case: valid key with multiple unquoted parameters in brackets
in:
  key: 'key[a,b,c]'
out:
  key: 'key'
  parameters: ['a', 'b', 'c']
  types: ['string', 'string', 'string']
---
test case: valid key with multiple quoted parameters in brackets
in:
  key: 'key["a","b","c"]'
out:
  key: 'key'
  parameters: ['a', 'b', 'c']
  types: ['string', 'string', 'string']
---
test case: valid key with first unquoted parameter and second array parameter containing two unquoted parameters
in:
  key: 'key[a,[b,c]]'
out:
  key: 'key'
  parameters: ['a','b,c']
  types: ['string', 'array']
---
test case: valid key with first unquoted parameter and second array parameter containing unquoted and empty parameter
in:
  key: 'key[a,[b,]]'
out:
  key: 'key'
  parameters: ['a', 'b,']
  types: ['string', 'array']
---
test case: valid key with two unquoted parameters where second parameter contains opening square bracket
in:
  key: 'key[a,b[c]'
out:
  key: 'key'
  parameters: ['a', 'b[c']
  types: ['string', 'string']
---
test case: valid key with multiple quoted parameters and array  # array contains multiple quoted parameters which containing escaping and characters that are not allowed in unquoted parameters
in:
  key: 'key["a","b",["c","d\",]"]]'
out:
  key: 'key'
  parameters: ['a',"b",'"c","d\",]"']
  types: ['string', 'string', 'array']
---
test case: valid key with multiple quoted parameters and multiple arrays        # arrays contains multiple unquoted and quoted parameters which containing escaping and characters that are not allowed in unquoted parameters
in:
  key: 'key["a","b",["c","d\",]"],[e,f]]'
out:
  key: 'key'
  parameters: ['a','b','"c","d\",]"','e,f']
  types: ['string', 'string', 'array', 'array']
---
test case: valid key, single parameter with unquoted string containing double quote characters
in:
  key: 'key[a"b"]'
out:
  key: 'key'
  parameters: ['a"b"']
  types: ['string']
---
test case: valid key, multiple different type parameters where one is unquoted string containing double quote characters
in:
  key: 'key["a",b"c",d]'
out:
  key: 'key'
  parameters: ['a','b"c"','d']
  types: ['string', 'string', 'string']
---
test case: valid key with many quoted/unquoted parameters with/without trailing/leading spaces also featuring escaping
in:
  key: 'key["\"aaa\"", "bbb","ccc" , "ddd" ,"", "","" , "" ,, ,  ,eee, fff,ggg , hhh" ]'
out:
  key: 'key'
  parameters: ['"aaa"', 'bbb', 'ccc', 'ddd', '', '', '', '', '', '', '', 'eee', 'fff', 'ggg ', 'hhh" ']
  types: ['string', 'string', 'string', 'string', 'string', 'string', 'string', 'string', 'undefined', 'undefined', 'undefined', 'string', 'string', 'string', 'string']
---
test case: valid key with quoted and unquoted arrays
in:
  key: 'key[[],"[]",[a,b],"z,[c,d]"]'
out:
  key: 'key'
  parameters: ['','[]','a,b','z,[c,d]']
  types: ['array', 'string', 'array', 'string']
---
test case: invalid key, unmatched opening bracket (1)   # array missing closing bracket after second parameter
in:
  key: 'key[["a",]'
---
test case: invalid key, unmatched opening bracket (2)   # array missing closing bracket, brackets are inside quotes and are a part of the array parameter
in:
  key: 'key[[a"]"]'
---
test case: invalid key, unmatched opening bracket (3)   # array missing closing bracket after second parameter, one of the closing brackets is inside quotes and is a part of the second array parameter
in:
  key: 'key[["a","\"b\"]"]'
---
test case: invalid key, invalid character for unquoted parameter, multiple parameter key
in:
  key: 'key["a",["b","c\"]"]]]'
---
test case: invalid key, unmatched closing bracket, parameter followed by trailing space
in:
  key: 'key[a ]]'
---
test case: invalid key, unmatched closing bracket, parameter followed by leading space
in:
  key: 'key[ a]]'
---
test case: invalid key, part of parameters list not enclosed in brackets
in:
  key: 'key[ГУГЛ]654'
---
test case: invalid key, braces are not allowed in key
in:
  key: '{}key'
---
test case: invalid key, comma is not allowed in key or parameters should be enclosed in brackets
in:
  key: 'ssh,21'
---
test case:  invalid key, multiple square bracket pairs are not allowed
in:
  key: 'key[][]'
---
test case: invalid key, multiple square bracket pairs containing parameters are not allowed
in:
  key: 'key["a",b,["c","d\",]"]]["d"]'
---
test case: invalid key, multi-level arrays are not allowed
in:
  key: 'key[[[]]]'
---
test case: invalid key, multi-level arrays are not allowed, array consists of multiple different type parameters
in:
  key: 'key["a",["b",["c","d"],e],"f"]'
---
test case: invalid key, multi-level arrays are not allowed, array consists of single parameter which is another array
in:
  key: 'key["a","b",[["c","d\",]"]]]'
---
test case: invalid key, character ] is not allowed in unquoted parameter string
in:
  key: 'key[a]]'
---
test case: invalid key, character [ is allowed in unquoted parameter string but character ] is not
in:
  key: 'key[a[b]]'
---
test case: invalid key, character ] is not allowed in unquoted parameter string, key with multiple different type parameters
in:
  key: 'key["a",b[c,d],e]'
---
test case: invalid key, quoted parameter cannot contain unquoted part
in:
  key: 'key["a"b]'
---
test case: invalid key, second parameter of the array cannot contain unquoted part
in:
  key: 'key["a",["b","]"c]]'
---
test case: invalid key, array type parameter cannot contain quoted parameter with unquoted part
in:
  key: 'key[["]"a]]'
---
test case: invalid key, array type parameter cannot contain quoted part
in:
  key: 'key[[a]"b"]'
...