For the NextDate problem, it has three variables $($month$,$ day, and year$),$ for years from $1812$ to $2012,$ it return the next date when user input a specified date. Month, day and year are all integer. if the results of equivalence class partitioning are described as follows, please design its weak normal test cases $?$

M$1=\{$month $|$ month has $30$ days$\}$

M$2=\{$month $|$ month has $31$ days$\}$

M$3=\{$month $|$ month is February$\}$

D$1=\{$day $1$ day $<=28\}$

D$2=\{$day day$=29)$

D$3=\{$day day$=30\}$

D$4=\{$day$|$day$=31)$

Y$1=($year $|$ year $=1900)$

Y$2=($year $|$ year is a leap year$)$

Y$3=($year $|$ year is a common year$)$