fix: 7757 creating more test coverage (#824)

* fix: adding more unit tests ValidationHelperTests

* fix: removing unwanted test

* making sure changes are pushed

* chore: adding new test that passees in an always future date

Author: SamRobinson75684

tests/UnitTests/StaticTests/ValidationHelperTests.cs

@@ -2,6 +2,7 @@ namespace NHS.CohortManager.Tests.UnitTests.StaticTests;
 
 using Common;
 
+
 [TestClass]
 public class ValidationHelperTests
 {
@@ -33,4 +34,54 @@ public void ValidateNhsNumber_InvalidNHNumbers_ReturnsFalse(string nhsNumber)
         //assert
         Assert.IsFalse(result);
     }
+
+    [TestMethod]
+    [DataRow("1990-10-10")]
+    [DataRow("2002-04-06")]
+    [DataRow("1997-12-23")]
+    [DataRow("2010-01-01")]
+    [DataRow("2005-12-10")]
+    public void ValidatePastDate_ValidPastDate_ReturnsTrue(string pastDate)
+    {
+        var result = ValidationHelper.ValidatePastDate(pastDate);
+
+        Assert.IsTrue(result);
+    }
+
+
+    [TestMethod]
+    [DataRow("1990-10-10")]
+    [DataRow("2002-04-06")]
+    [DataRow("1997-12-23")]
+    [DataRow("2010-01-01")]
+    [DataRow("2005-12-10")]
+    public void ValidateDate_ValidDate_ReturnsTrue(string date)
+    {
+        var result = ValidationHelper.IsValidDate(date);
+
+        Assert.IsTrue(result);
+    }
+
+    [TestMethod]
+    [DataRow("9999-10-10")]
+    [DataRow("3034-04-06")]
+    [DataRow("6060-12-23")]
+    [DataRow("7070-01-01")]
+    [DataRow("7070-01-01")]
+    [DataRow("dfbgdfdggfggg")]
+    public void ValidatePastDate_InvalidPastDate_ReturnsFalse(string pastDate)
+    {
+        var result = ValidationHelper.ValidatePastDate(pastDate);
+
+        Assert.IsFalse(result);
+    }
+
+    [TestMethod]
+    public void ValidatePastDate_InvalidPastDateAlwaysFuture_ReturnsFalse()
+    {
+
+        var result = ValidationHelper.ValidatePastDate(DateTime.Today.AddDays(1).ToString());
+
+        Assert.IsFalse(result);
+    }
 }