added another tests

tests

Author: ImranDCA

CodeBug.CountryProvider/CodeBug.CountryProvider.Tests/Utils/CountryQueryVisitorTests.cs

@@ -0,0 +1,53 @@
+using CodeBug.CountryProvider.Constants;
+using CodeBug.CountryProvider.Interfaces;
+using CodeBug.CountryProvider.Services;
+using CodeBug.CountryProvider.Tests.Generator;
+using CodeBug.CountryProvider.Utils;
+using NSubstitute;
+using NUnit.Framework;
+using System;
+
+namespace CodeBug.CountryProvider.Tests.Utils
+{
+    public class CountryQueryVisitorTests
+    {
+        [Test]
+        public void Visit_NullSent_ThrowsException()
+        {
+            var queryValidator = Substitute.For<IQueryValidator>();
+            var countryQueryVistor = new CountryQueryVisitor(queryValidator);
+            Assert.Throws<ArgumentNullException>(() => countryQueryVistor.Visit(null));
+        }
+
+        [Test]
+        public void Visit_CorrectQueryGiven_SearchingByFieldPopulated()
+        {
+            var query = QueryExpressionGenerator.GenerateQueryExpressionWithCorrectCondtion();
+            var queryValidator = Substitute.For<IQueryValidator>();
+            var countryQueryVisitor = new CountryQueryVisitor(queryValidator);
+
+            queryValidator.Validate().Returns(true);
+
+            countryQueryVisitor.Visit(query);
+
+            Assert.IsNotNull(countryQueryVisitor.SearchingBy);
+            Assert.IsNotNull(countryQueryVisitor.SearchedTerm);
+            Assert.IsTrue(countryQueryVisitor.SearchingBy == CountrySchemaNames.Region);
+            Assert.IsTrue(countryQueryVisitor.SearchedTerm == "Hello");
+        }
+
+        [Test]
+        public void Visit_CorrectQueryGiven_SearchingByFieldHasDefault()
+        {
+            var query = QueryExpressionGenerator.GenerateQueryExpressionWithMultipleCondition();
+            var queryValidator = Substitute.For<IQueryValidator>();
+            var countryQueryVisitor = new CountryQueryVisitor(queryValidator);
+
+            queryValidator.Validate().Returns(false);
+
+            countryQueryVisitor.Visit(query);
+
+            Assert.IsTrue(countryQueryVisitor.SearchingBy == "all");
+        }
+    }
+}