1 files changed, 262 insertions, 0 deletions
diff --git a/src/Services/DevHive.Services.Tests/TechnologyServices.Tests.cs b/src/Services/DevHive.Services.Tests/TechnologyServices.Tests.cs
new file mode 100644
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--- /dev/null
+++ b/src/Services/DevHive.Services.Tests/TechnologyServices.Tests.cs
@@ -0,0 +1,262 @@
+using AutoMapper;
+using DevHive.Data.Interfaces.Repositories;
+using DevHive.Data.Models;
+using DevHive.Services.Models.Technology;
+using DevHive.Services.Services;
+using Moq;
+using NUnit.Framework;
+using System;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
+namespace DevHive.Services.Tests
+{
+	[TestFixture]
+	public class TechnologyServicesTests
+	{
+		private Mock<ITechnologyRepository> TechnologyRepositoryMock { get; set; }
+		private Mock<IMapper> MapperMock { get; set; }
+		private TechnologyService TechnologyService { get; set; }
+
+		#region SetUps
+		[SetUp]
+		public void Setup()
+		{
+			this.TechnologyRepositoryMock = new Mock<ITechnologyRepository>();
+			this.MapperMock = new Mock<IMapper>();
+			this.TechnologyService = new TechnologyService(this.TechnologyRepositoryMock.Object, this.MapperMock.Object);
+		}
+		#endregion
+
+		#region CreateTechnology
+		[Test]
+		public async Task CreateTechnology_ReturnsNonEmptyGuid_WhenEntityIsAddedSuccessfully()
+		{
+			string technologyName = "Gosho Trapov";
+			Guid id = Guid.NewGuid();
+			CreateTechnologyServiceModel createTechnologyServiceModel = new()
+			{
+				Name = technologyName
+			};
+			Technology technology = new()
+			{
+				Name = technologyName,
+				Id = id
+			};
+
+			this.TechnologyRepositoryMock.Setup(p => p.DoesTechnologyNameExistAsync(It.IsAny<string>())).Returns(Task.FromResult(false));
+			this.TechnologyRepositoryMock.Setup(p => p.AddAsync(It.IsAny<Technology>())).Returns(Task.FromResult(true));
+			this.TechnologyRepositoryMock.Setup(p => p.GetByNameAsync(It.IsAny<string>())).Returns(Task.FromResult(technology));
+			this.MapperMock.Setup(p => p.Map<Technology>(It.IsAny<CreateTechnologyServiceModel>())).Returns(technology);
+
+			Guid result = await this.TechnologyService.CreateTechnology(createTechnologyServiceModel);
+
+			Assert.AreEqual(id, result);
+		}
+
+		[Test]
+		public async Task CreateTechnology_ReturnsEmptyGuid_WhenEntityIsNotAddedSuccessfully()
+		{
+			string technologyName = "Gosho Trapov";
+
+			CreateTechnologyServiceModel createTechnologyServiceModel = new()
+			{
+				Name = technologyName
+			};
+			Technology technology = new()
+			{
+				Name = technologyName
+			};
+
+			this.TechnologyRepositoryMock.Setup(p => p.DoesTechnologyNameExistAsync(It.IsAny<string>())).Returns(Task.FromResult(false));
+			this.TechnologyRepositoryMock.Setup(p => p.AddAsync(It.IsAny<Technology>())).Returns(Task.FromResult(false));
+			this.MapperMock.Setup(p => p.Map<Technology>(It.IsAny<CreateTechnologyServiceModel>())).Returns(technology);
+
+			Guid result = await this.TechnologyService.CreateTechnology(createTechnologyServiceModel);
+
+			Assert.IsTrue(result == Guid.Empty);
+		}
+
+		[Test]
+		public void CreateTechnology_ThrowsArgumentException_WhenEntityAlreadyExists()
+		{
+			string exceptionMessage = "Technology already exists!";
+			string technologyName = "Gosho Trapov";
+
+			CreateTechnologyServiceModel createTechnologyServiceModel = new()
+			{
+				Name = technologyName
+			};
+			Technology technology = new()
+			{
+				Name = technologyName
+			};
+
+			this.TechnologyRepositoryMock.Setup(p => p.DoesTechnologyNameExistAsync(It.IsAny<string>())).Returns(Task.FromResult(true));
+
+			Exception ex = Assert.ThrowsAsync<ArgumentException>(() => this.TechnologyService.CreateTechnology(createTechnologyServiceModel));
+
+			Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
+		}
+		#endregion
+
+		#region GetTechnologyById
+		[Test]
+		public async Task GetTechnologyById_ReturnsTheTechnology_WhenItExists()
+		{
+			Guid id = new Guid();
+			string name = "Gosho Trapov";
+			Technology technology = new()
+			{
+				Name = name
+			};
+			ReadTechnologyServiceModel readTechnologyServiceModel = new()
+			{
+				Name = name
+			};
+
+			this.TechnologyRepositoryMock.Setup(p => p.GetByIdAsync(It.IsAny<Guid>())).Returns(Task.FromResult(technology));
+			this.MapperMock.Setup(p => p.Map<ReadTechnologyServiceModel>(It.IsAny<Technology>())).Returns(readTechnologyServiceModel);
+
+			ReadTechnologyServiceModel result = await this.TechnologyService.GetTechnologyById(id);
+
+			Assert.AreEqual(name, result.Name);
+		}
+
+		[Test]
+		public void GetTechnologyById_ThrowsException_WhenTechnologyDoesNotExist()
+		{
+			string exceptionMessage = "The technology does not exist";
+			Guid id = new Guid();
+			this.TechnologyRepositoryMock.Setup(p => p.GetByIdAsync(It.IsAny<Guid>())).Returns(Task.FromResult<Technology>(null));
+
+			Exception ex = Assert.ThrowsAsync<ArgumentException>(() => this.TechnologyService.GetTechnologyById(id));
+
+			Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
+		}
+		#endregion
+
+		#region GetTechnologies
+		[Test]
+		public void GetTechnologies_ReturnsAllLanguages_IfAnyExist()
+		{
+			ReadTechnologyServiceModel firstTechnology = new ReadTechnologyServiceModel();
+			ReadTechnologyServiceModel secondTechnology = new ReadTechnologyServiceModel();
+			HashSet<ReadTechnologyServiceModel> technologies = new HashSet<ReadTechnologyServiceModel>();
+			technologies.Add(firstTechnology);
+			technologies.Add(secondTechnology);
+
+			this.TechnologyRepositoryMock.Setup(p => p.GetTechnologies()).Returns(new HashSet<Technology>());
+			this.MapperMock.Setup(p => p.Map<HashSet<ReadTechnologyServiceModel>>(It.IsAny<HashSet<Technology>>())).Returns(technologies);
+
+			HashSet<ReadTechnologyServiceModel> result = this.TechnologyService.GetTechnologies();
+
+			Assert.GreaterOrEqual(2, result.Count, "GetTechnologies does not return all technologies");
+		}
+
+		[Test]
+		public void GetLanguages_ReturnsEmptyHashSet_IfNoLanguagesExist()
+		{
+			this.TechnologyRepositoryMock.Setup(p => p.GetTechnologies()).Returns(new HashSet<Technology>());
+			this.MapperMock.Setup(p => p.Map<HashSet<ReadTechnologyServiceModel>>(It.IsAny<HashSet<Technology>>())).Returns(new HashSet<ReadTechnologyServiceModel>());
+
+			HashSet<ReadTechnologyServiceModel> result = this.TechnologyService.GetTechnologies();
+
+			Assert.IsEmpty(result, "GetTechnologies does not return empty string when no technologies exist");
+		}
+		#endregion
+
+		#region UpdateTechnology
+		[Test]
+		[TestCase(true)]
+		[TestCase(false)]
+		public async Task UpdateTechnology_ReturnsIfUpdateIsSuccessfull_WhenTechnologyExistsy(bool shouldPass)
+		{
+			string name = "Gosho Trapov";
+			Guid id = Guid.NewGuid();
+			Technology technology = new Technology
+			{
+				Name = name,
+				Id = id
+			};
+			UpdateTechnologyServiceModel updatetechnologyServiceModel = new UpdateTechnologyServiceModel
+			{
+				Name = name,
+			};
+
+			this.TechnologyRepositoryMock.Setup(p => p.DoesTechnologyExistAsync(It.IsAny<Guid>())).Returns(Task.FromResult(true));
+			this.TechnologyRepositoryMock.Setup(p => p.DoesTechnologyNameExistAsync(It.IsAny<string>())).Returns(Task.FromResult(false));
+			this.TechnologyRepositoryMock.Setup(p => p.EditAsync(It.IsAny<Guid>(), It.IsAny<Technology>())).Returns(Task.FromResult(shouldPass));
+			this.MapperMock.Setup(p => p.Map<Technology>(It.IsAny<UpdateTechnologyServiceModel>())).Returns(technology);
+
+			bool result = await this.TechnologyService.UpdateTechnology(updatetechnologyServiceModel);
+
+			Assert.AreEqual(shouldPass, result);
+		}
+
+		[Test]
+		public void UpdateTechnology_ThrowsException_WhenTechnologyDoesNotExist()
+		{
+			string exceptionMessage = "Technology does not exist!";
+			UpdateTechnologyServiceModel updateTechnologyServiceModel = new UpdateTechnologyServiceModel
+			{
+			};
+
+			this.TechnologyRepositoryMock.Setup(p => p.DoesTechnologyExistAsync(It.IsAny<Guid>())).Returns(Task.FromResult(false));
+
+			Exception ex = Assert.ThrowsAsync<ArgumentException>(() => this.TechnologyService.UpdateTechnology(updateTechnologyServiceModel));
+
+			Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
+		}
+
+		[Test]
+		public void UpdateTechnology_ThrowsException_WhenTechnologyNameAlreadyExists()
+		{
+			string exceptionMessage = "Technology name already exists!";
+			UpdateTechnologyServiceModel updateTechnologyServiceModel = new UpdateTechnologyServiceModel
+			{
+			};
+
+			this.TechnologyRepositoryMock.Setup(p => p.DoesTechnologyExistAsync(It.IsAny<Guid>())).Returns(Task.FromResult(true));
+			this.TechnologyRepositoryMock.Setup(p => p.DoesTechnologyNameExistAsync(It.IsAny<string>())).Returns(Task.FromResult(true));
+
+			Exception ex = Assert.ThrowsAsync<ArgumentException>(() => this.TechnologyService.UpdateTechnology(updateTechnologyServiceModel));
+
+			Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
+		}
+		#endregion
+
+		#region DeleteTechnology
+
+		[Test]
+		[TestCase(true)]
+		[TestCase(false)]
+		public async Task DeleteTechnology_ShouldReturnIfDeletionIsSuccessfull_WhenTechnologyExists(bool shouldPass)
+		{
+			Guid id = new Guid();
+			Technology technology = new Technology();
+
+			this.TechnologyRepositoryMock.Setup(p => p.DoesTechnologyExistAsync(It.IsAny<Guid>())).Returns(Task.FromResult(true));
+			this.TechnologyRepositoryMock.Setup(p => p.GetByIdAsync(It.IsAny<Guid>())).Returns(Task.FromResult(technology));
+			this.TechnologyRepositoryMock.Setup(p => p.DeleteAsync(It.IsAny<Technology>())).Returns(Task.FromResult(shouldPass));
+
+			bool result = await this.TechnologyService.DeleteTechnology(id);
+
+			Assert.AreEqual(shouldPass, result);
+		}
+
+		[Test]
+		public void DeleteTechnology_ThrowsException_WhenTechnologyDoesNotExist()
+		{
+			string exceptionMessage = "Technology does not exist!";
+			Guid id = new Guid();
+
+			this.TechnologyRepositoryMock.Setup(p => p.DoesTechnologyExistAsync(It.IsAny<Guid>())).Returns(Task.FromResult(false));
+
+			Exception ex = Assert.ThrowsAsync<ArgumentException>(() => this.TechnologyService.DeleteTechnology(id));
+
+			Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
+		}
+		#endregion
+	}
+}