roi: new testcase from simonmichael#2298

hledger/test/roi.test

@@ -384,3 +384,32 @@ $ hledger -f - roi --inv investment --pnl income --value='end,B' -b2023 -e2024
 +---++------------+------------++---------------+----------+-------------+-----++--------++------------+----------+
 
 >= 0
+
+# ** 16. Correcly process dates with just pricing changes
+<
+D 1,000.00 EUR 
+
+2018-07-01 investment
+        assets:bank
+        investments:iShares Core MSCI World     1 "IE00B4L5Y983"
+
+P 2018-12-28 "IE00B4L5Y983" 43.11000000 "EUR"
+P 2019-06-28 "IE00B4L5Y983" 50.93000000 "EUR"
+
+2019-07-01 investment
+        assets:bank    
+        investments:iShares Core MSCI World     10 "IE00B4L5Y983"
+
+P 2019-12-30 "IE00B4L5Y983" 56.59000000 "EUR"
+
+$ hledger -f - roi --value then --begin 2019 --end 2020 --inv investmen --pnl '"profit and loss"' -p 'every 2 quarters'
++-------++------------+------------++---------------+------------+-------------+-----------++--------++------------+----------+
+|       ||      Begin |        End || Value (begin) |   Cashflow | Value (end) |       PnL ||    IRR || TWR/period | TWR/year |
++=======++============+============++===============+============+=============+===========++========++============+==========+
+|     1 || 2019-01-01 | 2019-06-30 ||     43.11 EUR |          0 |   50.93 EUR |  7.82 EUR || 39.96% ||     18.14% |   39.96% |
+|     2 || 2019-07-01 | 2019-12-31 ||     50.93 EUR | 509.30 EUR |  622.49 EUR | 62.26 EUR || 23.25% ||     11.11% |   23.24% |
++-------++------------+------------++---------------+------------+-------------+-----------++--------++------------+----------+
+| Total || 2019-01-01 | 2019-12-31 ||     43.11 EUR | 509.30 EUR |  622.49 EUR | 70.08 EUR || 24.51% ||     31.27% |   31.27% |
++-------++------------+------------++---------------+------------+-------------+-----------++--------++------------+----------+
+
+>= 0