---
test case: valid 1 parameter
in:
  params: 'p'
  num: 1
out:
  param: 'p'
---
test case: valid 2 parameter
in:
  params: 'p1,p2'
  num: 2
out:
  param: 'p2'
---
test case: valid 2 empty parameter
in:
  params: 'p1,,p2'
  num: 2
out:
  param: ''
---
test case: valid last empty parameter
in:
  params: 'p1,,p2,'
  num: 4
out:
  param: ''
---
test case: non-existent 4 parameter
in:
  params: 'p1,p2'
  num: 4
out:
  param: 'NULL'
---
test case: valid 1 parameter with []
in:
  params: '[p1],p2'
  num: 1
out:
  param: '[p1]'
---
test case: valid 2 parameter with []
in:
  params: '[p1],[p2],p3'
  num: 2
out:
  param: '[p2]'
---
test case: invalid params with empty 1 value
in:
  params: ''
  num: 1
out:
  param: ''
---
test case: invalid params with empty 2 value
in:
  params: ''
  num: 2
out:
  param: NULL
---
test case: valid param with quoted 'a' in brackets
in:
  params: '"a"'
  num: 1
out:
  param: 'a'
---
test case: valid param with quoted '[a]' in brackets
in:
  params: '"[a]"'
  num: 1
out:
  param: '[a]'
---
test case: valid param with quoted 'a' followed by comma
in:
  params: '"[a]",'
  num: 1
out:
  param: '[a]'
---
test case: valid param with quoted 'a' prefixed by comma
in:
  params: ',"[a]"'
  num: 2
out:
  param: '[a]'
---
test case: valid param with unquoted 'a' followed by comma
in:
  params: 'a,'
  num: 1
out:
  param: 'a'
---
test case: valid param with multiple quoted parameters
in:
  params: '"a","b","c"'
  num: 3
out:
  param: 'c'
---
test case: valid param with first unquoted parameter and second array parameter containing two unquoted parameters
in:
  params: 'a,[b,c]'
  num: 2
out:
  param: '[b'
---
test case: valid param with first unquoted parameter and second array parameter containing unquoted and empty parameter
in:
  params: 'a,[b,]'
  num: 2
out:
  param: '[b'
---
test case: valid param with two unquoted parameters where second parameter contains opening square bracket
in:
  params: 'a,b[c'
  num: 2
out:
  param: 'b[c'
---
test case: valid param with multiple quoted parameters and array  # array contains multiple quoted parameters which containing escaping and characters that are not allowed in unquoted parameters
in:
  params: '"a","b",["c","d\",]"]'
  num: 3
out:
  param: '["c"'
---
test case: valid param 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:
  params: '"a","b",["c","d\",]"],[e,f]'
  num: 3
out:
  param: '["c"'
---
test case: valid param, single parameter with unquoted string containing double quote characters
in:
  params: 'a"b"'
  num: 1
out:
  param: 'a"b"'
---
test case: valid param, multiple different type parameters where one is unquoted string containing double quote characters
in:
  params: '"a",b"c",d'
  num: 2
out:
  param: 'b"c"'
...