Some refactoring of FancyZones::IsInterestingWindow and added Unit Tests (#1521)

* Some refactoring of FancyZones::IsInterestingWindow and added UnitTests

src/common/UnitTests-CommonLib/UnitTestsCommon.cpp

@@ -0,0 +1,57 @@
+#include "pch.h"
+#include "common.h"
+
+using namespace Microsoft::VisualStudio::CppUnitTestFramework;
+
+namespace UnitTestsCommon
+{
+    TEST_CLASS (CommonUtils)
+    {
+        std::vector<std::wstring> what_global{
+            L"TELEGRAM",
+            L"SUBLIME TEXT",
+            L"PROGRAM",
+            L"TEXT",
+        };
+
+        TEST_METHOD (FindAppNameInPathTest1)
+        {
+            std::wstring where(L"C:\\USERS\\GUEST\\APPDATA\\ROAMING\\TELEGRAM DESKTOP\\TELEGRAM.EXE");
+            bool ans = find_app_name_in_path(where, what_global);
+            Assert::IsTrue(ans);
+        }
+        TEST_METHOD (FindAppNameInPathTest2)
+        {
+            std::vector<std::wstring> what{
+                L"NOTEPAD",
+            };
+            std::wstring where(L"C:\\PROGRAM FILES\\NOTEPAD++\\NOTEPAD++.EXE");
+            bool ans = find_app_name_in_path(where, what);
+            Assert::IsTrue(ans);
+        }
+        TEST_METHOD (FindAppNameInPathTest3)
+        {
+            std::vector<std::wstring> what{
+                L"NOTEPAD++.EXE",
+            };
+            std::wstring where(L"C:\\PROGRAM FILES\\NOTEPAD++\\NOTEPAD++.EXE");
+            bool ans = find_app_name_in_path(where, what);
+            Assert::IsTrue(ans);
+        }
+        TEST_METHOD (FindAppNameInPathTest4)
+        {
+            std::wstring where(L"C:\\PROGRAM FILES\\SUBLIME TEXT 3\\SUBLIME_TEXT.EXE");
+            bool ans = find_app_name_in_path(where, what_global);
+            Assert::IsFalse(ans);
+        }
+        TEST_METHOD (FindAppNameInPathTest5)
+        {
+            std::vector<std::wstring> what{
+                L"NOTEPAD.EXE",
+            };
+            std::wstring where(L"C:\\PROGRAM FILES\\NOTEPAD++\\NOTEPAD++.EXE");
+            bool ans = find_app_name_in_path(where, what);
+            Assert::IsFalse(ans);
+        }
+    };
+}