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| author | David Robillard <d@drobilla.net> | 2019-10-06 20:40:56 +0200 |
|---|---|---|
| committer | David Robillard <d@drobilla.net> | 2020-10-27 13:13:59 +0100 |
| commit | 9e59a63d9b5897d9ff6d0d9936a57c3167ea9a34 (patch) | |
| tree | f54ecb581bef3e8476725e989b36e14ac556e0a2 /tests | |
| parent | 5a0d9e5a66e0ad0b85db3740b479301128637ad5 (diff) | |
| download | serd-9e59a63d9b5897d9ff6d0d9936a57c3167ea9a34.tar.gz serd-9e59a63d9b5897d9ff6d0d9936a57c3167ea9a34.tar.bz2 serd-9e59a63d9b5897d9ff6d0d9936a57c3167ea9a34.zip | |
Add precise decimal digit generation
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/decimal_test.c | 50 | ||||
| -rw-r--r-- | tests/serd_test.c | 4 |
2 files changed, 51 insertions, 3 deletions
diff --git a/tests/decimal_test.c b/tests/decimal_test.c index b0361e2c..674ce5cb 100644 --- a/tests/decimal_test.c +++ b/tests/decimal_test.c @@ -1,5 +1,5 @@ /* - Copyright 2011-2019 David Robillard <http://drobilla.net> + Copyright 2011-2020 David Robillard <http://drobilla.net> Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above @@ -18,7 +18,13 @@ #include "../src/decimal.h" +#include "serd/serd.h" + #include <assert.h> +#include <math.h> +#include <stdbool.h> +#include <stdio.h> +#include <string.h> static void test_count_digits(void) @@ -48,8 +54,50 @@ test_count_digits(void) assert(20 == serd_count_digits(18446744073709551615ull)); } +static void +check_precision(const double d, + const unsigned precision, + const unsigned frac_digits, + const char* expected) +{ + SerdNode* const node = serd_new_decimal(d, precision, frac_digits, NULL); + const char* str = serd_node_string(node); + + if (strcmp(str, expected)) { + fprintf(stderr, "error: string is \"%s\"\n", str); + fprintf(stderr, "note: expected \"%s\"\n", expected); + assert(false); + } + + serd_node_free(node); +} + +static void +test_precision(void) +{ + assert(serd_new_decimal((double)INFINITY, 17, 0, NULL) == NULL); + assert(serd_new_decimal((double)-INFINITY, 17, 0, NULL) == NULL); + assert(serd_new_decimal((double)NAN, 17, 0, NULL) == NULL); + + check_precision(1.0000000001, 17, 8, "1.0"); + check_precision(0.0000000001, 17, 10, "0.0000000001"); + check_precision(0.0000000001, 17, 8, "0.0"); + + check_precision(12345.678900, 9, 5, "12345.6789"); + check_precision(12345.678900, 8, 5, "12345.678"); + check_precision(12345.678900, 5, 5, "12345.0"); + check_precision(12345.678900, 3, 5, "12300.0"); + + check_precision(12345.678900, 9, 0, "12345.6789"); + check_precision(12345.678900, 9, 5, "12345.6789"); + check_precision(12345.678900, 9, 3, "12345.678"); + check_precision(12345.678900, 9, 1, "12345.6"); +} + int main(void) { test_count_digits(); + test_precision(); + return 0; } diff --git a/tests/serd_test.c b/tests/serd_test.c index 599e948a..81fb0322 100644 --- a/tests/serd_test.c +++ b/tests/serd_test.c @@ -310,13 +310,13 @@ test_double_to_node(void) "0.01", "2.05", "-16.00001", - "5.00000001", + "5.0", "0.0", NULL, NULL }; for (size_t i = 0; i < sizeof(dbl_test_nums) / sizeof(double); ++i) { - SerdNode* node = serd_new_decimal(dbl_test_nums[i], 8, NULL); + SerdNode* node = serd_new_decimal(dbl_test_nums[i], 17, 8, NULL); const char* node_str = serd_node_string(node); const bool pass = (node_str && dbl_test_strs[i]) ? !strcmp(node_str, dbl_test_strs[i]) |