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| author |  Tim Segers <tsegers@pm.me> | 2023-01-02 21:54:31 +0100 |
|---|---|---|
| committer | Tim Segers <tsegers@pm.me> | 2023-01-07 15:24:51 +0100 |
| commit | 650812777953ecc1ddb1280c86b63fa4b5761ed6 (patch) | |
| tree | 4715b5f67e42dc14c59a25d5d90a98c2c2ecb241 | |
| parent | 2fcfc12ea05a8707910376f2e025506db0d89164 (diff) | |
| download | opendeco-650812777953ecc1ddb1280c86b63fa4b5761ed6.tar.gz | |
Add macro to compare floats with user-defined max error
| -rw-r--r-- | minunit/minunit.h | 16 | ||||
| -rw-r--r-- | test/deco_test.c | 8 |
2 files changed, 21 insertions, 3 deletions
diff --git a/minunit/minunit.h b/minunit/minunit.h index 608fddf..a20b8b8 100644 --- a/minunit/minunit.h +++ b/minunit/minunit.h @@ -201,6 +201,22 @@ extern void (*minunit_teardown)(void); }\ ) +#define mu_assert_double_near(expected, result, maxabserr) MU__SAFE_BLOCK(\ + double minunit_tmp_e;\ + double minunit_tmp_r;\ + minunit_assert++;\ + minunit_tmp_e = (expected);\ + minunit_tmp_r = (result);\ + if (fabs(minunit_tmp_e-minunit_tmp_r) > maxabserr) {\ + int minunit_significant_figures = 1 - log10(maxabserr);\ + snprintf(minunit_last_message, MINUNIT_MESSAGE_LEN, "%s failed:\n\t%s:%d: %.*g expected but was %.*g", __func__, __FILE__, __LINE__, minunit_significant_figures, minunit_tmp_e, minunit_significant_figures, minunit_tmp_r);\ + minunit_status = 1;\ + return;\ + } else {\ + printf(".");\ + }\ +) + #define mu_assert_string_eq(expected, result) MU__SAFE_BLOCK(\ const char* minunit_tmp_e = expected;\ const char* minunit_tmp_r = result;\ diff --git a/test/deco_test.c b/test/deco_test.c index 1f9ba9f..f87cffc 100644 --- a/test/deco_test.c +++ b/test/deco_test.c @@ -19,6 +19,8 @@ MU_TEST(test_abs_gauge) MU_TEST(test_gas) { + double max_mod_err = 1E-3; + gas_t foo = gas_new(21, 35, MOD_AUTO); gas_t bar = gas_new(21, 0, MOD_AUTO); gas_t baz = gas_new(21, 35, MOD_AUTO); @@ -33,9 +35,9 @@ MU_TEST(test_gas) mu_check(gas_equal(&foo, &baz)); mu_check(!gas_equal(&foo, &qux)); - mu_assert_double_eq(abs_depth(msw_to_bar(51.6)), gas_mod(&foo)); - mu_assert_double_eq(abs_depth(msw_to_bar(30)), gas_mod(&bar)); - mu_assert_double_eq(99, gas_mod(&qux)); + mu_assert_double_near(abs_depth(msw_to_bar(51.6)), gas_mod(&foo), max_mod_err); + mu_assert_double_near(abs_depth(msw_to_bar(30)), gas_mod(&bar), max_mod_err); + mu_assert_double_near(99, gas_mod(&qux), max_mod_err); } void testsuite_deco_setup(void) |