test: date module testcase

* testcase added to date module for codecov

Signed-off-by: Guru Mehar Rachaputi <[email protected]>

include/faker-cxx/date.h

@@ -11,6 +11,8 @@ namespace faker::date
         Timestamp,
     };
 
+    std::string betweenDate(const auto& from, const auto& to, DateFormat dateFormat);
+
     /**
      * @brief Generates a random date in the past.
      *

tests/modules/date_test.cpp

@@ -52,6 +52,29 @@ class DateTest : public Test
     }
 };
 
+
+
+TEST_F(DateTest, shouldThrowRuntimeError)
+{
+    const auto startDate = std::chrono::system_clock::now() + std::chrono::hours{1};
+
+    const auto endDate = startDate + std::chrono::hours{24 * 365 * 2};
+
+    EXPECT_THROW({
+        try { 
+            betweenDate(endDate, startDate, DateFormat::ISO);
+        }
+        catch (const runtimeError& err) {
+            EXPECT_STREQ( common::format("Start date is greater than end date. {{from: {}, to: {}}}",
+                                        serializeTimePoint(endDate, DateFormat::ISO),
+                                        serializeTimePoint(startDate, DateFormat::ISO)), 
+                                        err.what());
+            throw;
+        }
+    }, runtimeError ); 
+}
+
+
 TEST_F(DateTest, shouldGeneratePastDateISO)
 {
     const auto currentDate = std::chrono::system_clock::now();