Added new tests for lab1

modules/complex-number/test/test_bandenkov_daniil_complex_number.cpp

@@ -0,0 +1,55 @@
+// Copyright 2020 Bandenkov Daniil
+
+#include <gtest/gtest.h>
+
+#include "include/complex_number.h"
+
+TEST(Bandenkov_Daniil_ComplexNumberTest, Can_Create_Zero) {
+  double re = 0.0;
+  double im = 0.0;
+
+  ComplexNumber z(re, im);
+
+  EXPECT_EQ(re, z.getRe());
+  EXPECT_EQ(im, z.getIm());
+}
+
+TEST(Bandenkov_Daniil_ComplexNumberTest, Division_Of_Complex_Numbers) {
+  double re_0 = 3.0;
+  double re_1 = 4.0;
+  double im_0 = 7.0;
+  double im_1 = 15.0;
+
+  ComplexNumber x(re_0, im_0);
+  ComplexNumber y(re_1, im_1);
+  ComplexNumber res((re_0 * re_1 + im_0 * im_1) / (re_1 * re_1 + im_1 * im_1),
+    (im_0 * re_1 - re_0 * im_1) / (re_1 * re_1 + im_1 * im_1));
+
+  EXPECT_EQ(res, x / y);
+}
+
+TEST(Bandenkov_Daniil_ComplexNumberTest, Equality_Of_Complex_Numbers) {
+  double re_0 = 3.0;
+  double re_1 = 3.0;
+  double im_0 = 7.0;
+  double im_1 = 7.0;
+
+  ComplexNumber x(re_0, im_0);
+  ComplexNumber y(re_1, im_1);
+  ComplexNumber res(re_0 - re_1, im_0 - im_1);
+
+  EXPECT_EQ(x == y, true);
+}
+
+TEST(Bandenkov_Daniil_ComplexNumberTest, Subtraction_Of_Complex_Numbers) {
+  double re_0 = 1.1;
+  double re_1 = 7.9;
+  double im_0 = 21.5;
+  double im_1 = 1.3;
+
+  ComplexNumber x(re_0, im_0);
+  ComplexNumber y(re_1, im_1);
+  ComplexNumber res(re_0 - re_1, im_0 - im_1);
+
+  EXPECT_EQ(res, x - y);
+}