==== check escaping ====
"qwe,rty","as""df'gh","","zx
cv	bn m",123,"2016-01-01"
"as""df'gh","","zx
cv	bn m","qwe,rty",456,"2016-01-02"
"zx
cv	bn m","qwe,rty","as""df'gh","",789,"2016-01-04"
"","zx
cv	bn m","qwe,rty","as""df'gh",9876543210,"2016-01-03"
==== parse json (sophisticated template) ====
"qwe,rty","as""df'gh","","zx
cv	bn m",123,"2016-01-01"
"as""df'gh","","zx
cv	bn m","qwe,rty",456,"2016-01-02"
"zx
cv	bn m","qwe,rty","as""df'gh","",789,"2016-01-04"
"","zx
cv	bn m","qwe,rty","as""df'gh",9876543210,"2016-01-03"
==== parse json ====
"","","qwe,rty","",123,"2016-01-01"
"zx
cv	bn m","","as""df'gh","",456,"2016-01-02"
"as""df'gh","","zx
cv	bn m","",789,"2016-01-04"
"qwe,rty","","","",9876543210,"2016-01-03"