2018/01/01 * Opening Balance
    Assets:Checking                             $1000.00
    Equity:Opening Balances                    -$1000.00

2018/01/01 * Budget
    [Assets:Budget:Rent]                         $100.00
    [Assets:Budget:Emergency]                    $200.00
    [Assets:Checking]                           -$300.00

2018/01/01 * Budget
    [Assets:Budget:Rent]                       = $100.00
    [Assets:Budget:Emergency]                  = $400.00
    [Assets:Bank]                               -$500.00

test bal Assets -> 1
__ERROR__
While parsing file "$FILE", line 13:
While balancing transaction from "$FILE", lines 10-13:
> 2018/01/01 * Budget
>     [Assets:Budget:Rent]                       = $100.00
>     [Assets:Budget:Emergency]                  = $400.00
>     [Assets:Bank]                               -$500.00
Unbalanced remainder is:
            $-300.00
Amount to balance against:
             $200.00
Error: Transaction does not balance
end test