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| author | Christian Grothoff <christian@grothoff.org> | 2021-07-10 14:52:59 +0200 |
|---|---|---|
| committer | Christian Grothoff <christian@grothoff.org> | 2021-07-10 14:55:35 +0200 |
| commit | 249ba03c36d6bc61b78bdd5a7f1ca55701f1c287 (patch) | |
| tree | 4bb49f6defd74b77b9eed0622c74f41749301717 /src/util/test_amount.c | |
| parent | 883b1fc70bc84bb053d09b5eab921f24134194b9 (diff) | |
| download | exchange-249ba03c36d6bc61b78bdd5a7f1ca55701f1c287.tar.gz exchange-249ba03c36d6bc61b78bdd5a7f1ca55701f1c287.tar.bz2 exchange-249ba03c36d6bc61b78bdd5a7f1ca55701f1c287.zip | |
expose 2^52 amount value limit in header, check that limit in test cases, add TALER_amount_multiply and TALER_amount_divide2 operations
Diffstat (limited to 'src/util/test_amount.c')
| -rw-r--r-- | src/util/test_amount.c | 67 |
1 files changed, 60 insertions, 7 deletions
diff --git a/src/util/test_amount.c b/src/util/test_amount.c index 8a83e4cf6..1af383dcc 100644 --- a/src/util/test_amount.c +++ b/src/util/test_amount.c @@ -1,6 +1,6 @@ /* This file is part of TALER - (C) 2015 Taler Systems SA + (C) 2015, 2021 Taler Systems SA TALER is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software @@ -186,21 +186,27 @@ main (int argc, /* test addition with overflow */ a1.fraction = TALER_AMOUNT_FRAC_BASE - 1; - a1.value = UINT64_MAX - 5; + a1.value = TALER_AMOUNT_MAX_VALUE - 5; a2.fraction = 2; a2.value = 5; GNUNET_assert (TALER_AAR_INVALID_RESULT_OVERFLOW == - TALER_amount_add (&a3, &a1, &a2)); + TALER_amount_add (&a3, + &a1, + &a2)); /* test addition with underflow on fraction */ a1.fraction = 1; - a1.value = UINT64_MAX; + a1.value = TALER_AMOUNT_MAX_VALUE; a2.fraction = 2; a2.value = 0; GNUNET_assert (TALER_AAR_RESULT_POSITIVE == - TALER_amount_subtract (&a3, &a1, &a2)); - GNUNET_assert (UINT64_MAX - 1 == a3.value); - GNUNET_assert (TALER_AMOUNT_FRAC_BASE - 1 == a3.fraction); + TALER_amount_subtract (&a3, + &a1, + &a2)); + GNUNET_assert (TALER_AMOUNT_MAX_VALUE - 1 == + a3.value); + GNUNET_assert (TALER_AMOUNT_FRAC_BASE - 1 == + a3.fraction); /* test division */ GNUNET_assert (GNUNET_OK == @@ -288,6 +294,53 @@ main (int argc, &r)); GNUNET_assert (0 == TALER_amount_cmp (&a1, &a2)); + + /* test multiplication */ + GNUNET_assert (GNUNET_OK == + TALER_string_to_amount ("BTC:0", + &a1)); + GNUNET_assert (TALER_AAR_RESULT_ZERO == + TALER_amount_multiply (&a2, + &a1, + 42)); + GNUNET_assert (0 == TALER_amount_cmp (&a1, + &a2)); + GNUNET_assert (GNUNET_OK == + TALER_string_to_amount ("BTC:5.001", + &a1)); + GNUNET_assert (GNUNET_OK == + TALER_string_to_amount ("BTC:5001", + &r)); + GNUNET_assert (TALER_AAR_RESULT_POSITIVE == + TALER_amount_multiply (&a2, + &a1, + 1000)); + GNUNET_assert (0 == TALER_amount_cmp (&r, + &a2)); + GNUNET_assert (1000 == + TALER_amount_divide2 (&a2, + &a1)); + GNUNET_assert (GNUNET_OK == + TALER_string_to_amount ("BTC:5006.00099999", + &r)); + GNUNET_assert (1000 == + TALER_amount_divide2 (&r, + &a1)); + GNUNET_assert (GNUNET_OK == + TALER_string_to_amount ("BTC:5000.99999999", + &r)); + GNUNET_assert (999 == + TALER_amount_divide2 (&r, + &a1)); + GNUNET_assert (GNUNET_OK == + TALER_string_to_amount ("BTC:0", + &a1)); + GNUNET_assert (INT_MAX == + TALER_amount_divide2 (&a2, + &a1)); + GNUNET_assert (0 == + TALER_amount_divide2 (&a1, + &a2)); return 0; } |