testing: addition sum of two positiv double numbers

test/test_addition.c

@@ -381,4 +381,19 @@ void test_addition_addition_precision_double_positivnumberlowerthan2tothepowerof
     TEST_ASSERT_EQUAL_UINT64(expected[1], result[1]);
 }
 
+void test_addition_addition_double_sumofpositivnumbers(void)
+{
+    double result[3];
+    numberd[0].dnum = 93415405440107.45515, numberd[1].dnum = 78634100530331.45341, numberd[2].dnum = 0.00043419445734139434, numberd[3].dnum = 940313051379341035.3739, numberd[4].dnum = 0.000007936136439442513434, numberd[5].dnum = 0.0000000093953351384343102;
+    double expected[3] = { numberd[0].dnum + numberd[1].dnum, numberd[2].dnum + numberd[3].dnum, numberd[4].dnum + numberd[5].dnum };
+
+    result[0] = addition_double(numberd[0].dnum, numberd[1].dnum);
+    result[1] = addition_double(numberd[2].dnum, numberd[3].dnum);
+    result[2] = addition_double(numberd[4].dnum, numberd[5].dnum);
+
+    TEST_ASSERT_EQUAL_DOUBLE(expected[0], result[0]);
+    TEST_ASSERT_EQUAL_DOUBLE(expected[1], result[1]);
+    TEST_ASSERT_EQUAL_DOUBLE(expected[2], result[2]);
+}
+
 #endif // TEST