2 * This file contains test for both fptoa and fptoms (which uses dofptoa),
3 * since all these functions are very similar.
9 #define SFP_MAX_PRECISION 6
11 void test_PositiveInteger(void)
13 s_fp test = 300 << 16; // exact 300.000000
15 TEST_ASSERT_EQUAL_STRING("300.000000", fptoa(test, SFP_MAX_PRECISION));
16 TEST_ASSERT_EQUAL_STRING("300000.000", fptoms(test, SFP_MAX_PRECISION));
19 void test_NegativeInteger(void)
21 s_fp test = -200 << 16; // exact -200.000000
23 TEST_ASSERT_EQUAL_STRING("-200.000000", fptoa(test, SFP_MAX_PRECISION));
24 TEST_ASSERT_EQUAL_STRING("-200000.000", fptoms(test, SFP_MAX_PRECISION));
27 void test_PositiveIntegerPositiveFraction(void)
29 s_fp test = (300 << 16) + (1 << 15); // 300 + 0.5
31 TEST_ASSERT_EQUAL_STRING("300.500000", fptoa(test, SFP_MAX_PRECISION));
32 TEST_ASSERT_EQUAL_STRING("300500.000", fptoms(test, SFP_MAX_PRECISION));
35 void test_NegativeIntegerNegativeFraction(void)
37 s_fp test = (-200 << 16) - (1 << 15); // -200 - 0.5
39 TEST_ASSERT_EQUAL_STRING("-200.500000", fptoa(test, SFP_MAX_PRECISION));
40 TEST_ASSERT_EQUAL_STRING("-200500.000", fptoms(test, SFP_MAX_PRECISION));
43 void test_PositiveIntegerNegativeFraction(void)
45 s_fp test = (300 << 16) - (1 << 14); // 300 - 0.25
47 TEST_ASSERT_EQUAL_STRING("299.750000", fptoa(test, SFP_MAX_PRECISION));
48 TEST_ASSERT_EQUAL_STRING("299750.000", fptoms(test, SFP_MAX_PRECISION));
51 void test_NegativeIntegerPositiveFraction(void)
53 s_fp test = (-200 << 16) + (1 << 14)*3; // -200 + 0.75
55 TEST_ASSERT_EQUAL_STRING("-199.250000", fptoa(test, SFP_MAX_PRECISION));
56 TEST_ASSERT_EQUAL_STRING("-199250.000", fptoms(test, SFP_MAX_PRECISION));
59 void test_SingleDecimalInteger(void)
61 s_fp test = 300 << 16; // 300
63 TEST_ASSERT_EQUAL_STRING("300.0", fptoa(test, 1));
64 TEST_ASSERT_EQUAL_STRING("300000.0", fptoms(test, 1));
67 void test_SingleDecimalRounding(void)
69 s_fp test = (2 << 16) + (1 << 14)*3; // 2 + 0.25*3 = 2.75
71 TEST_ASSERT_EQUAL_STRING("2.8", fptoa(test, 1));
72 TEST_ASSERT_EQUAL_STRING("2750.0", fptoms(test, 1));