Test: add more unit tests

tests/src/Base/Tools2D.cpp

@@ -0,0 +1,87 @@
+#include "gtest/gtest.h"
+#include <Base/Tools2D.h>
+
+class Line2D: public ::testing::Test
+{
+protected:
+    Line2D()
+        : pt1(0.0, 0.0)
+        , pt2(3.0, 4.0)
+    {}
+    void SetUp() override
+    {}
+    void TearDown() override
+    {}
+    Base::Vector2d GetFirst() const
+    {
+        return pt1;
+    }
+    Base::Vector2d GetSecond() const
+    {
+        return pt2;
+    }
+    Base::Line2d GetLine() const
+    {
+        Base::Line2d line(pt1, pt2);
+        return line;
+    }
+
+private:
+    Base::Vector2d pt1, pt2;
+};
+
+TEST_F(Line2D, TestLength)
+{
+    Base::Line2d line(GetLine());
+    EXPECT_DOUBLE_EQ(line.Length(), 5.0);
+}
+
+TEST_F(Line2D, TestPoints)
+{
+    Base::Line2d line(GetLine());
+    EXPECT_EQ(line.clV1, GetFirst());
+    EXPECT_EQ(line.clV2, GetSecond());
+}
+
+TEST_F(Line2D, TestFromPos)
+{
+    Base::Line2d line(GetLine());
+    EXPECT_EQ(line.FromPos(2.5), Base::Vector2d(1.5, 2.0));
+}
+
+TEST_F(Line2D, TestContains)
+{
+    Base::Line2d line(GetLine());
+    EXPECT_EQ(line.Contains(Base::Vector2d(1.5, 2.0)), true);
+}
+
+TEST(Polygon2D, TestDefault)
+{
+    Base::Polygon2d poly;
+    EXPECT_EQ(poly.GetCtVectors(), 0);
+}
+
+TEST(Polygon2D, TestAdd)
+{
+    Base::Polygon2d poly;
+    poly.Add(Base::Vector2d());
+    EXPECT_EQ(poly.GetCtVectors(), 1);
+}
+
+TEST(Polygon2D, TestRemove)
+{
+    Base::Polygon2d poly;
+    poly.Add(Base::Vector2d());
+    EXPECT_EQ(poly.GetCtVectors(), 1);
+    EXPECT_EQ(poly.Delete(1), false);
+    EXPECT_EQ(poly.Delete(0), true);
+    EXPECT_EQ(poly.GetCtVectors(), 0);
+}
+
+TEST(Polygon2D, TestClear)
+{
+    Base::Polygon2d poly;
+    poly.Add(Base::Vector2d());
+    poly.DeleteAll();
+    EXPECT_EQ(poly.GetCtVectors(), 0);
+}