public async Task EditGrade_WithExistentId_ShouldSuccessfullyEditGrade()
{
string errorMessagePrefix = "GradeService EditGradeAsync() does not work properly.";
var context = NetBookDbContextInMemoryFactory.InitializeContext();
await this.SeedData(context);
this.gradeService = new GradeService(context);
var testId = context.Grades.First().Id;
var editGrade = new GradeServiceModel
{
Id = testId,
GradeValue = "3",
Term = Term.Втори,
IsTermGrade = false,
};
var actualResult = await this.gradeService.EditGradeAsync(editGrade);
Assert.True(actualResult, errorMessagePrefix);
var editedGrade = context.Grades.First();
Assert.True(editedGrade.GradeValue == editGrade.GradeValue, errorMessagePrefix + " " + "GradeValue is not set properly.");
Assert.True(editedGrade.Term == editGrade.Term, errorMessagePrefix + " " + "Term is not set properly.");
Assert.True(editedGrade.IsTermGrade == editGrade.IsTermGrade, errorMessagePrefix + " " + "IsTermGrade is not set properly.");
}
public async Task <bool> CreateGradeAsync(GradeServiceModel model)
{
var grade = Mapper.Map <Grade>(model);
var student = await this.context.Students.Where(x => !x.IsDeleted).SingleOrDefaultAsync(s => s.Id == model.StudentId);
if (student == null)
{
throw new ArgumentNullException(nameof(student));
}
if (grade.IsTermGrade)
{
var termGradeFromContext = await this.context.Grades
.Where(x => x.Term == grade.Term)
.Where(x => x.SubjectId == grade.SubjectId)
.Where(x => x.StudentId == grade.StudentId)
.SingleOrDefaultAsync(g => g.IsTermGrade);
if (termGradeFromContext != null)
{
return(false);
}
}
student.Grades.Add(grade);
this.context.Students.Update(student);
await this.context.Grades.AddAsync(grade);
int result = await this.context.SaveChangesAsync();
return(result > 0);
}
public async Task CreateGrade_WithAnotherTermGrade_ShouldReturnFalse()
{
string errorMessagePrefix = "GradeService CreateGradeAsync() does not work properly.";
var context = NetBookDbContextInMemoryFactory.InitializeContext();
await this.SeedData(context);
this.gradeService = new GradeService(context);
var studentId = "TestStudent";
var subjectId = "TestSubject";
var testGrade = new GradeServiceModel
{
GradeValue = "5",
Term = Term.Първи,
IsTermGrade = true,
StudentId = studentId,
SubjectId = subjectId,
};
var actualResult = await this.gradeService.CreateGradeAsync(testGrade);
Assert.True(!actualResult, errorMessagePrefix + " " + "Another term grade is added");
}
public async Task CreateGrade_WithCorrectData_ShouldSuccessfullyCreateGrade()
{
string errorMessagePrefix = "GradeService CreateGradeAsync() does not work properly.";
var context = NetBookDbContextInMemoryFactory.InitializeContext();
await this.SeedData(context);
this.gradeService = new GradeService(context);
var student = context.Students.First();
var testGrade = new GradeServiceModel
{
Id = "TestCreateGrade",
GradeValue = "5",
Term = Term.Втори,
IsTermGrade = false,
Student = student.To <StudentServiceModel>(),
StudentId = student.Id,
};
var actualResult = await this.gradeService.CreateGradeAsync(testGrade);
var grade = context.Grades.Find("TestCreateGrade");
Assert.True(actualResult, errorMessagePrefix);
Assert.True(grade.GradeValue == testGrade.GradeValue, errorMessagePrefix + " " + "GradeValue is not set properly.");
Assert.True(grade.Term == testGrade.Term, errorMessagePrefix + " " + "Term is not set properly.");
Assert.True(grade.IsTermGrade == testGrade.IsTermGrade, errorMessagePrefix + " " + "IsTermGrade is not set properly.");
Assert.True(grade.StudentId == testGrade.StudentId, errorMessagePrefix + " " + "StudentId is not set properly");
}
public async Task <bool> EditGradeAsync(GradeServiceModel model)
{
var grade = await this.context.Grades.Where(x => !x.IsDeleted).SingleOrDefaultAsync(g => g.Id == model.Id);
if (grade == null)
{
throw new ArgumentNullException(nameof(grade));
}
if (grade.GradeValue != model.GradeValue)
{
grade.GradeValue = model.GradeValue;
grade.ModifiedOn = DateTime.UtcNow;
}
if (grade.Term != model.Term)
{
grade.Term = model.Term;
grade.ModifiedOn = DateTime.UtcNow;
}
if (grade.IsTermGrade != model.IsTermGrade)
{
if (model.IsTermGrade)
{
var termGradeFromContext = await this.context.Grades
.Where(x => x.Term == grade.Term)
.Where(x => x.SubjectId == grade.SubjectId)
.Where(x => x.StudentId == grade.StudentId)
.SingleOrDefaultAsync(g => g.IsTermGrade);
if (termGradeFromContext != null)
{
return(false);
}
}
grade.IsTermGrade = model.IsTermGrade;
grade.ModifiedOn = DateTime.UtcNow;
}
this.context.Grades.Update(grade);
int result = await this.context.SaveChangesAsync();
return(result > 0);
}
public async Task CreateGrade_WithNonExistentStudent_ShouldThrowArgumentNullException()
{
string errorMessagePrefix = "GradeService CreateGradeAsync() does not work properly.";
var context = NetBookDbContextInMemoryFactory.InitializeContext();
await this.SeedData(context);
this.gradeService = new GradeService(context);
var testGrade = new GradeServiceModel();
await Assert.ThrowsAsync <ArgumentNullException>(async() => await this.gradeService.CreateGradeAsync(testGrade));
}
public async Task EditGrade_WithExistentIdAndWithAnotherTermGrade_ShouldReturnFalse()
{
string errorMessagePrefix = "GradeService EditGradeAsync() does not work properly.";
var context = NetBookDbContextInMemoryFactory.InitializeContext();
await this.SeedData(context);
this.gradeService = new GradeService(context);
var testId = context.Grades.First().Id;
var editGrade = new GradeServiceModel
{
Id = testId,
GradeValue = "3",
Term = Term.Първи,
IsTermGrade = true,
};
var actualResult = await this.gradeService.EditGradeAsync(editGrade);
Assert.True(!actualResult, errorMessagePrefix + " " + "Can't change IsTermGrade to true when their is another Term Grade.");
}
