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Diffstat (limited to 'Lib/test/formatfloat_testcases.txt')
| -rw-r--r-- | Lib/test/formatfloat_testcases.txt | 380 |
1 files changed, 380 insertions, 0 deletions
diff --git a/Lib/test/formatfloat_testcases.txt b/Lib/test/formatfloat_testcases.txt new file mode 100644 index 0000000000..43ef040954 --- /dev/null +++ b/Lib/test/formatfloat_testcases.txt @@ -0,0 +1,380 @@ +-- 'f' code formatting, with explicit precision (>= 0). Output always +-- has the given number of places after the point; zeros are added if +-- necessary to make this true. + +-- zeros +%.0f 0 -> 0 +%.1f 0 -> 0.0 +%.2f 0 -> 0.00 +%.3f 0 -> 0.000 +%.50f 0 -> 0.00000000000000000000000000000000000000000000000000 + +-- precision 0; result should never include a . +%.0f 1.5 -> 2 +%.0f 2.5 -> 2 +%.0f 3.5 -> 4 +%.0f 0.0 -> 0 +%.0f 0.1 -> 0 +%.0f 0.001 -> 0 +%.0f 10.0 -> 10 +%.0f 10.1 -> 10 +%.0f 10.01 -> 10 +%.0f 123.456 -> 123 +%.0f 1234.56 -> 1235 +%.0f 1e49 -> 9999999999999999464902769475481793196872414789632 +%.0f 9.9999999999999987e+49 -> 99999999999999986860582406952576489172979654066176 +%.0f 1e50 -> 100000000000000007629769841091887003294964970946560 + +-- precision 1 +%.1f 0.0001 -> 0.0 +%.1f 0.001 -> 0.0 +%.1f 0.01 -> 0.0 +%.1f 0.04 -> 0.0 +%.1f 0.06 -> 0.1 +%.1f 0.25 -> 0.2 +%.1f 0.75 -> 0.8 +%.1f 1.4 -> 1.4 +%.1f 1.5 -> 1.5 +%.1f 10.0 -> 10.0 +%.1f 1000.03 -> 1000.0 +%.1f 1234.5678 -> 1234.6 +%.1f 1234.7499 -> 1234.7 +%.1f 1234.75 -> 1234.8 + +-- precision 2 +%.2f 0.0001 -> 0.00 +%.2f 0.001 -> 0.00 +%.2f 0.004999 -> 0.00 +%.2f 0.005001 -> 0.01 +%.2f 0.01 -> 0.01 +%.2f 0.125 -> 0.12 +%.2f 0.375 -> 0.38 +%.2f 1234500 -> 1234500.00 +%.2f 1234560 -> 1234560.00 +%.2f 1234567 -> 1234567.00 +%.2f 1234567.8 -> 1234567.80 +%.2f 1234567.89 -> 1234567.89 +%.2f 1234567.891 -> 1234567.89 +%.2f 1234567.8912 -> 1234567.89 + +-- alternate form always includes a decimal point. This only +-- makes a difference when the precision is 0. +%#.0f 0 -> 0. +%#.1f 0 -> 0.0 +%#.0f 1.5 -> 2. +%#.0f 2.5 -> 2. +%#.0f 10.1 -> 10. +%#.0f 1234.56 -> 1235. +%#.1f 1.4 -> 1.4 +%#.2f 0.375 -> 0.38 + +-- if precision is omitted it defaults to 6 +%f 0 -> 0.000000 +%f 1230000 -> 1230000.000000 +%f 1234567 -> 1234567.000000 +%f 123.4567 -> 123.456700 +%f 1.23456789 -> 1.234568 +%f 0.00012 -> 0.000120 +%f 0.000123 -> 0.000123 +%f 0.00012345 -> 0.000123 +%f 0.000001 -> 0.000001 +%f 0.0000005001 -> 0.000001 +%f 0.0000004999 -> 0.000000 + +-- nans and infinities +%f nan -> nan +%f inf -> inf +%f -infinity -> -inf +%F nan -> NAN +%F infinity -> INF +%F -inf -> -INF + +-- 'e' code formatting with explicit precision (>= 0). Output should +-- always have exactly the number of places after the point that were +-- requested. + +-- zeros +%.0e 0 -> 0e+00 +%.1e 0 -> 0.0e+00 +%.2e 0 -> 0.00e+00 +%.10e 0 -> 0.0000000000e+00 +%.50e 0 -> 0.00000000000000000000000000000000000000000000000000e+00 + +-- precision 0. no decimal point in the output +%.0e 0.01 -> 1e-02 +%.0e 0.1 -> 1e-01 +%.0e 1 -> 1e+00 +%.0e 10 -> 1e+01 +%.0e 100 -> 1e+02 +%.0e 0.012 -> 1e-02 +%.0e 0.12 -> 1e-01 +%.0e 1.2 -> 1e+00 +%.0e 12 -> 1e+01 +%.0e 120 -> 1e+02 +%.0e 123.456 -> 1e+02 +%.0e 0.000123456 -> 1e-04 +%.0e 123456000 -> 1e+08 +%.0e 0.5 -> 5e-01 +%.0e 1.4 -> 1e+00 +%.0e 1.5 -> 2e+00 +%.0e 1.6 -> 2e+00 +%.0e 2.4999999 -> 2e+00 +%.0e 2.5 -> 2e+00 +%.0e 2.5000001 -> 3e+00 +%.0e 3.499999999999 -> 3e+00 +%.0e 3.5 -> 4e+00 +%.0e 4.5 -> 4e+00 +%.0e 5.5 -> 6e+00 +%.0e 6.5 -> 6e+00 +%.0e 7.5 -> 8e+00 +%.0e 8.5 -> 8e+00 +%.0e 9.4999 -> 9e+00 +%.0e 9.5 -> 1e+01 +%.0e 10.5 -> 1e+01 +%.0e 14.999 -> 1e+01 +%.0e 15 -> 2e+01 + +-- precision 1 +%.1e 0.0001 -> 1.0e-04 +%.1e 0.001 -> 1.0e-03 +%.1e 0.01 -> 1.0e-02 +%.1e 0.1 -> 1.0e-01 +%.1e 1 -> 1.0e+00 +%.1e 10 -> 1.0e+01 +%.1e 100 -> 1.0e+02 +%.1e 120 -> 1.2e+02 +%.1e 123 -> 1.2e+02 +%.1e 123.4 -> 1.2e+02 + +-- precision 2 +%.2e 0.00013 -> 1.30e-04 +%.2e 0.000135 -> 1.35e-04 +%.2e 0.0001357 -> 1.36e-04 +%.2e 0.0001 -> 1.00e-04 +%.2e 0.001 -> 1.00e-03 +%.2e 0.01 -> 1.00e-02 +%.2e 0.1 -> 1.00e-01 +%.2e 1 -> 1.00e+00 +%.2e 10 -> 1.00e+01 +%.2e 100 -> 1.00e+02 +%.2e 1000 -> 1.00e+03 +%.2e 1500 -> 1.50e+03 +%.2e 1590 -> 1.59e+03 +%.2e 1598 -> 1.60e+03 +%.2e 1598.7 -> 1.60e+03 +%.2e 1598.76 -> 1.60e+03 +%.2e 9999 -> 1.00e+04 + +-- omitted precision defaults to 6 +%e 0 -> 0.000000e+00 +%e 165 -> 1.650000e+02 +%e 1234567 -> 1.234567e+06 +%e 12345678 -> 1.234568e+07 +%e 1.1 -> 1.100000e+00 + +-- alternate form always contains a decimal point. This only makes +-- a difference when precision is 0. + +%#.0e 0.01 -> 1.e-02 +%#.0e 0.1 -> 1.e-01 +%#.0e 1 -> 1.e+00 +%#.0e 10 -> 1.e+01 +%#.0e 100 -> 1.e+02 +%#.0e 0.012 -> 1.e-02 +%#.0e 0.12 -> 1.e-01 +%#.0e 1.2 -> 1.e+00 +%#.0e 12 -> 1.e+01 +%#.0e 120 -> 1.e+02 +%#.0e 123.456 -> 1.e+02 +%#.0e 0.000123456 -> 1.e-04 +%#.0e 123456000 -> 1.e+08 +%#.0e 0.5 -> 5.e-01 +%#.0e 1.4 -> 1.e+00 +%#.0e 1.5 -> 2.e+00 +%#.0e 1.6 -> 2.e+00 +%#.0e 2.4999999 -> 2.e+00 +%#.0e 2.5 -> 2.e+00 +%#.0e 2.5000001 -> 3.e+00 +%#.0e 3.499999999999 -> 3.e+00 +%#.0e 3.5 -> 4.e+00 +%#.0e 4.5 -> 4.e+00 +%#.0e 5.5 -> 6.e+00 +%#.0e 6.5 -> 6.e+00 +%#.0e 7.5 -> 8.e+00 +%#.0e 8.5 -> 8.e+00 +%#.0e 9.4999 -> 9.e+00 +%#.0e 9.5 -> 1.e+01 +%#.0e 10.5 -> 1.e+01 +%#.0e 14.999 -> 1.e+01 +%#.0e 15 -> 2.e+01 +%#.1e 123.4 -> 1.2e+02 +%#.2e 0.0001357 -> 1.36e-04 + +-- nans and infinities +%e nan -> nan +%e inf -> inf +%e -infinity -> -inf +%E nan -> NAN +%E infinity -> INF +%E -inf -> -INF + +-- 'g' code formatting. + +-- zeros +%.0g 0 -> 0 +%.1g 0 -> 0 +%.2g 0 -> 0 +%.3g 0 -> 0 +%.4g 0 -> 0 +%.10g 0 -> 0 +%.50g 0 -> 0 +%.100g 0 -> 0 + +-- precision 0 doesn't make a lot of sense for the 'g' code (what does +-- it mean to have no significant digits?); in practice, it's interpreted +-- as identical to precision 1 +%.0g 1000 -> 1e+03 +%.0g 100 -> 1e+02 +%.0g 10 -> 1e+01 +%.0g 1 -> 1 +%.0g 0.1 -> 0.1 +%.0g 0.01 -> 0.01 +%.0g 1e-3 -> 0.001 +%.0g 1e-4 -> 0.0001 +%.0g 1e-5 -> 1e-05 +%.0g 1e-6 -> 1e-06 +%.0g 12 -> 1e+01 +%.0g 120 -> 1e+02 +%.0g 1.2 -> 1 +%.0g 0.12 -> 0.1 +%.0g 0.012 -> 0.01 +%.0g 0.0012 -> 0.001 +%.0g 0.00012 -> 0.0001 +%.0g 0.000012 -> 1e-05 +%.0g 0.0000012 -> 1e-06 + +-- precision 1 identical to precision 0 +%.1g 1000 -> 1e+03 +%.1g 100 -> 1e+02 +%.1g 10 -> 1e+01 +%.1g 1 -> 1 +%.1g 0.1 -> 0.1 +%.1g 0.01 -> 0.01 +%.1g 1e-3 -> 0.001 +%.1g 1e-4 -> 0.0001 +%.1g 1e-5 -> 1e-05 +%.1g 1e-6 -> 1e-06 +%.1g 12 -> 1e+01 +%.1g 120 -> 1e+02 +%.1g 1.2 -> 1 +%.1g 0.12 -> 0.1 +%.1g 0.012 -> 0.01 +%.1g 0.0012 -> 0.001 +%.1g 0.00012 -> 0.0001 +%.1g 0.000012 -> 1e-05 +%.1g 0.0000012 -> 1e-06 + +-- precision 2 +%.2g 1000 -> 1e+03 +%.2g 100 -> 1e+02 +%.2g 10 -> 10 +%.2g 1 -> 1 +%.2g 0.1 -> 0.1 +%.2g 0.01 -> 0.01 +%.2g 0.001 -> 0.001 +%.2g 1e-4 -> 0.0001 +%.2g 1e-5 -> 1e-05 +%.2g 1e-6 -> 1e-06 +%.2g 1234 -> 1.2e+03 +%.2g 123 -> 1.2e+02 +%.2g 12.3 -> 12 +%.2g 1.23 -> 1.2 +%.2g 0.123 -> 0.12 +%.2g 0.0123 -> 0.012 +%.2g 0.00123 -> 0.0012 +%.2g 0.000123 -> 0.00012 +%.2g 0.0000123 -> 1.2e-05 + +-- alternate g formatting: always include decimal point and +-- exactly <precision> significant digits. +%#.0g 0 -> 0. +%#.1g 0 -> 0. +%#.2g 0 -> 0.0 +%#.3g 0 -> 0.00 +%#.4g 0 -> 0.000 + +%#.0g 0.2 -> 0.2 +%#.1g 0.2 -> 0.2 +%#.2g 0.2 -> 0.20 +%#.3g 0.2 -> 0.200 +%#.4g 0.2 -> 0.2000 +%#.10g 0.2 -> 0.2000000000 + +%#.0g 2 -> 2. +%#.1g 2 -> 2. +%#.2g 2 -> 2.0 +%#.3g 2 -> 2.00 +%#.4g 2 -> 2.000 + +%#.0g 20 -> 2.e+01 +%#.1g 20 -> 2.e+01 +%#.2g 20 -> 20. +%#.3g 20 -> 20.0 +%#.4g 20 -> 20.00 + +%#.0g 234.56 -> 2.e+02 +%#.1g 234.56 -> 2.e+02 +%#.2g 234.56 -> 2.3e+02 +%#.3g 234.56 -> 235. +%#.4g 234.56 -> 234.6 +%#.5g 234.56 -> 234.56 +%#.6g 234.56 -> 234.560 + +-- nans and infinities +%g nan -> nan +%g inf -> inf +%g -infinity -> -inf +%G nan -> NAN +%G infinity -> INF +%G -inf -> -INF + +-- for repr formatting see the separate test_short_repr test in +-- test_float.py. Not all platforms use short repr for floats. + +-- str formatting. Result always includes decimal point and at +-- least one digit after the point, or an exponent. +%s 0 -> 0.0 +%s 1 -> 1.0 + +%s 0.01 -> 0.01 +%s 0.02 -> 0.02 +%s 0.03 -> 0.03 +%s 0.04 -> 0.04 +%s 0.05 -> 0.05 + +-- str truncates to 12 significant digits +%s 1.234123412341 -> 1.23412341234 +%s 1.23412341234 -> 1.23412341234 +%s 1.2341234123 -> 1.2341234123 + +-- values >= 1e11 get an exponent +%s 10 -> 10.0 +%s 100 -> 100.0 +%s 1e10 -> 10000000000.0 +%s 9.999e10 -> 99990000000.0 +%s 99999999999 -> 99999999999.0 +%s 99999999999.9 -> 99999999999.9 +%s 99999999999.99 -> 1e+11 +%s 1e11 -> 1e+11 +%s 1e12 -> 1e+12 + +-- as do values < 1e-4 +%s 1e-3 -> 0.001 +%s 1.001e-4 -> 0.0001001 +%s 1.000000000001e-4 -> 0.0001 +%s 1.00000000001e-4 -> 0.000100000000001 +%s 1.0000000001e-4 -> 0.00010000000001 +%s 1e-4 -> 0.0001 +%s 0.999999999999e-4 -> 9.99999999999e-05 +%s 0.999e-4 -> 9.99e-05 +%s 1e-5 -> 1e-05 |