hledger/tests/journal/precision.test
Simon Michael 924ec1c98d journal: clearer transaction balancing errors; refactor
As mentioned by netvor on IRC, the unbalanced transaction error was
not too clear when postings all have the same sign.

Some other wording has been clarified, and the main error message is
now shown on multiple lines for readability (at the cost of
predictability/grepability..)

There's also a probably unnoticeable change: selecting which parts of
the error to show is now based on display precisions (reusing the
balanced check logic), rather than original precisions.
2020-05-29 16:07:58 -07:00

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# http://code.google.com/p/hledger/issues/detail?id=23
#
# 1. original test case, this should balance since price precisions do
# not affect the canonical display precisions used for display and balancing
hledger -f - print
<<<
2010/1/1 x
A 55.3653 C @ 30.92189512 D
A -1712 D
>>>
2010-01-01 x
A 55.3653 C @ 30.92189512 D
A -1712 D
>>>=0
# 2. here the price should be printed with its original precision, not
# the canonical display precision. And the inferred amount should be printed
# with the canonical precision (2 digits, inferred from the first posting).
hledger -f - print --explicit
<<<
2010/1/1
a $0.00
a 1C @ $1.0049
a
>>>
2010-01-01
a 0
a 1C @ $1.0049
a $-1.00
>>>=0
# 3. with $'s display precision at 3 or more, this txn should not balance.
# The error message shows the difference with full precision.
hledger -f - balance --no-total --cost --empty
<<<
2010/1/1
a 1C @ $1.0049
a $-1.000
>>>2 /should be 0 but is: \$0.0049/
>>>= 1
# 4. with $'s display precision at 2 or less, this txn should balance
hledger -f - balance --no-total --cost --empty
<<<
2010/1/1
a 1C @ $1.0049
a $-1.00
>>>
0 a
>>>=0
# 5. avamk's 2011/1/19 example
hledger -f - balance --cost
<<<
2001/01/01 * ACME fund
assets:investment:ACME 203.890 ACME @ $16.02
equity:opening balances
>>>
$3266.32 assets:investment:ACME
$-3266.32 equity:opening balances
--------------------
0
>>>=0
# hledger 0.14pre: precision=2, presumably from price
# $3266.32 assets:investment:ACME
# $-3266.32 equity:opening balances
#--------------------
# $0.00
#
# ledger "2.6.0.90" with -s: full precision, ignores price
# $3266.3178 assets:investment:ACME
# $-3266.3178 equity:opening balances
#
# ledger 3: precision=0, uses default, ignores price
# $3266 assets:investment:ACME
# $-3266 equity:opening balances
#--------------------
# 0
## 6. with a default commodity..
hledger -f - balance --cost
<<<
D $1000.0
2001/01/01 * ACME fund
assets:investment:ACME 203.890 ACME @ $16.02
equity:opening balances
>>>
$3266.3 assets:investment:ACME
$-3266.3 equity:opening balances
--------------------
0
>>>=0
### hledger 0.14pre: precision=2, presumably from price, ignores D
### $3266.32 assets:investment:ACME
### $-3266.32 equity:opening balances
###--------------------
### $0.00
###
### ledger "2.6.0.90" with -s: full precision, ignores price and D
### $3266.3178 assets:investment:ACME
### $-3266.3178 equity:opening balances
###
### ledger 3: precision=1, ignores price, observes D
### $3266.3 assets:investment:ACME
### $-3266.3 equity:opening balances
###--------------------
### 0
#
# 7. when there are multiple postings in the commodity being priced,
# show the averaged unit price, with precision equal to the sum of
# the max precisions of the commodities being converted (#262).
# Here the (irrational) price should be displayed with just precision 4
# (C's precision 2 + D's precision 2).
hledger -f- print --explicit
<<<
2015/1/1
c C 10.00
c C 11.00
d D -320.00
>>>
2015-01-01
c C 10.00 @ D 15.2381
c C 11.00 @ D 15.2381
d D -320.00
>>>=0
## 8. Here the price should be displayed with precision 7
# (E's precision 4 + F's precision 3).
hledger -f- print --explicit
<<<
2015/1/1
e E 10.0000
e E 11
f F -320.000
>>>
2015-01-01
e E 10.0000 @ F 15.2380952
e E 11.0000 @ F 15.2380952
f F -320.000
>>>=0