public async Task BlogPostBuilder_BuildsBlogWithMetaTag()
{
var author = Author.Create(new User(""), new AuthorProfile("", "", ""), Mock.Of <IAuthorValidator>());
var mock = new Mock <IAuthorService>();
mock.Setup(a => a.GetAuthor()).Returns(author);
var authorService = mock.Object;
var imageService = new Mock <IImageService>().Object;
var builder = new BlogPostBuilder(authorService, imageService);
var tags = new List <MetaTag>()
{
new MetaTag("description", "test description")
};
var addBlogPostCommand = new AddBlogPostCommand()
{
ContentIntro = "Intro",
Content = "Test",
Subject = "Subject"
};
var category = new Category("", 1, "");
var blogPost = await builder.WrittenByCurrentAuthor().WithCategory(category).WithContent(addBlogPostCommand)
.WithMetaTags(tags).Build();
Assert.Single(blogPost.MetaTags);
}
/// <summary>
/// Initializes a new instance of the <see cref="BlogPost"/> class
/// using the given <see cref="BlogPostBuilder"/>.
/// </summary>
/// <param name="builder">The builder to use.</param>
public BlogPost(BlogPostBuilder builder)
{
this.Id = builder.Id;
this.Content = builder.Content;
this.Created = builder.Created;
this.Status = builder.Status;
this.Tags = builder.Tags;
}
/// <summary>
/// Initializes a new instance of the <see cref="BlogPost"/> class.
/// </summary>
/// <param name="builder">The builder to create the post from.</param>
/// <returns>A new instance of the <see cref="BlogPost"/> class.</returns>
public static BlogPost Create(BlogPostBuilder builder)
{
if (builder is null)
{
throw new ArgumentNullException(nameof(builder));
}
return(new BlogPost(builder));
}
/// <summary>
/// Initialize a new <see cref="BlogPost"/> that is a draft.
/// </summary>
/// <returns>A draft <see cref="BlogPost"/>.</returns>
internal static BlogPost Create()
{
string content = "# Something\nWords and things and such.";
IClock clock = SystemClock.Instance;
BlogPost blogPost = BlogPostBuilder.Create(clock)
.WithId(Guid.NewGuid())
.WithContent(content)
.Build();
return(blogPost);
}
public void Given_tags_is_not_null_When_WithTags_is_called_Then_Tags_should_be_set()
{
// Arrange.
IClock clock = ConstantClockStub.Create(0);
BlogPostBuilder builder = BlogPostBuilder.Create(clock);
IImmutableSet <Tag> tags = ImmutableHashSet.Create(Tag.Create("name"));
// Act.
builder = builder.WithTags(tags);
// Assert.
builder.Tags.Should().BeEquivalentTo(tags);
}
public void Given_a_valid_Instant_When_WithCreated_is_called_Then_Created_Should_be_set()
{
// Arrange.
IClock clock = ConstantClockStub.Create(0);
BlogPostBuilder builder = BlogPostBuilder.Create(clock);
Instant created = Instant.FromUnixTimeMilliseconds(100000);
// Act.
builder = builder.WithCreated(created);
// Assert.
builder.Created.Should().Be(created);
}
public void Given_content_is_not_null_When_WithContent_is_called_Then_Content_should_be_set()
{
// Arrange.
IClock clock = ConstantClockStub.Create(0);
BlogPostBuilder builder = BlogPostBuilder.Create(clock);
string content = "Content";
// Act.
builder = builder.WithContent(content);
// Assert.
builder.Content.Should().Be(content);
}
public void Given_status_is_not_null_When_WithStatus_is_called_Then_Status_should_be_set()
{
// Arrange.
IClock clock = ConstantClockStub.Create(0);
BlogPostBuilder builder = BlogPostBuilder.Create(clock);
BlogPostStatus status = BlogPostStatus.Published;
// Act.
builder = builder.WithStatus(status);
// Assert.
builder.Status.Should().Be(status);
}
public void Given_builder_is_null_When_Create_is_called_Then_a_ArgumentNullException_should_be_thrown()
{
// Given.
BlogPost blogPost;
BlogPostBuilder builder = null;
// When.
Action action = () => blogPost = BlogPost.Create(builder);
// Then.
action.Should().Throw <ArgumentNullException>()
.WithMessage("*cannot be null*builder*");
}
public void Given_a_valid_guid_When_WithId_is_called_Then_Id_should_be_set()
{
// Arrange.
IClock clock = ConstantClockStub.Create(0);
BlogPostBuilder builder = BlogPostBuilder.Create(clock);
Guid id = Guid.NewGuid();
// Act.
builder = builder.WithId(id);
// Assert.
builder.Id.Should().Be(id);
}
public void Given_null_IClock_When_Create_is_called_Then_an_ArgumentNullException_should_be_thrown()
{
// Arrange.
IClock clock = null;
// Act.
Action createBuilder = () => BlogPostBuilder.Create(clock);
// Assert.
createBuilder.Should()
.Throw <ArgumentNullException>()
.WithMessage("*cannot be null*clock*");
}
public void Given_tags_is_null_When_WithTags_is_called_Then_an_ArgumentNullException_should_be_thrown()
{
// Arrange.
IClock clock = ConstantClockStub.Create(0);
BlogPostBuilder builder = BlogPostBuilder.Create(clock);
IImmutableSet <Tag> tags = null;
// Act.
Action testCode = () => builder.WithTags(tags);
// Assert.
testCode.Should()
.Throw <ArgumentNullException>()
.WithMessage("*cannot be null*tags*");
}
public void Given_two_sets_of_tags_When_WithTags_is_called_Then_Tags_should_be_last_set_of_tags()
{
// Arrange.
IClock clock = ConstantClockStub.Create(0);
BlogPostBuilder builder = BlogPostBuilder.Create(clock);
IImmutableSet <Tag> tags = ImmutableHashSet.Create(Tag.Create("name"), Tag.Create("pizza"));
IImmutableSet <Tag> otherTags = ImmutableHashSet.Create(Tag.Create("name"), Tag.Create("age"));
// Act.
builder = builder.WithTags(tags)
.WithTags(otherTags);
// Assert.
builder.Tags.Should().BeEquivalentTo(otherTags);
}
public void Given_stauts_is_null_When_WithStatus_is_called_Then_an_ArgumentNullException_should_be_thrown()
{
// Arrange.
IClock clock = ConstantClockStub.Create(0);
BlogPostBuilder builder = BlogPostBuilder.Create(clock);
BlogPostStatus status = null;
// Act.
Action testCode = () => builder.WithStatus(status);
// Assert.
testCode.Should()
.Throw <ArgumentNullException>()
.WithMessage("*cannot be null*status*");
}
public void Given_a_valid_IClock_When_Create_is_called_Then_builder_should_have_defaults_set()
{
// Arrange.
BlogPostBuilder builder;
IClock clock = ConstantClockStub.Create(0);
// Act.
builder = BlogPostBuilder.Create(clock);
// Assert.
builder.Id.Should().Be(Guid.Empty);
builder.Content.Should().Be(string.Empty);
builder.Created.Should().Be(clock.GetCurrentInstant());
builder.Status.Should().BeEquivalentTo(BlogPostStatus.Draft);
builder.Tags.Should().BeEmpty();
}
public async Task AddBlogPostCommandHandler_AddsBlog()
{
var imageService = TestContext.CreateImageService();
var builder = new BlogPostBuilder(_authorService, imageService);
var handlerContext = TestContext.CreateHandlerContext <BlogPostSummaryViewModel>(RequestDbContext, CreateMapper());
var addBlogPostCommandHandler = new AddBlogPostCommandHandler(handlerContext, builder);
var category = await RequestDbContext.Categories.FirstOrDefaultAsync();
var addBlogPostCommand = new AddBlogPostCommand()
{
Subject = "Test",
ContentIntro = "Test",
Content = "Test",
CategoryId = category.Id
};
var result = await addBlogPostCommandHandler.Handle(addBlogPostCommand, CancellationToken.None);
Assert.InRange(result.Id, 1, int.MaxValue);
Assert.Equal(category.Name, result.Category);
}
public async Task AddBlogPostCommandHandler_WithFile_AddsBlog()
{
var mapper = CreateMapper();
var imageFactory = TestContext.CreateImageService();
var builder = new BlogPostBuilder(_authorService, imageFactory);
var handlerContext = TestContext.CreateHandlerContext <BlogPostSummaryViewModel>(RequestDbContext, mapper);
var handler = new AddBlogPostCommandHandler(handlerContext, builder);
var fileMock = TestContext.CreateFileMock();
var file = fileMock.Object;
var category = await RequestDbContext.Categories.FirstOrDefaultAsync();
var message = new AddBlogPostCommand()
{
Subject = "Test",
Content = "Test",
ContentIntro = "Test",
File = file,
CategoryId = category.Id
};
var result = await handler.Handle(message, CancellationToken.None);
Assert.NotNull(result.Image.UriPath);
}
public void Given_a_valid_BlogPostBuilder_When_Build_is_called_Then_a_matching_BlogPost_is_constructed()
{
// Arrange.
IClock clock = ConstantClockStub.Create(0);
BlogPostBuilder builder;
BlogPost blogPost;
Guid id = Guid.NewGuid();
const string content = "Content";
BlogPostStatus draft = BlogPostStatus.Draft;
ImmutableHashSet <Tag> tags = ImmutableHashSet.Create(Tag.Create("tag"));
builder = BlogPostBuilder.Create(clock)
.WithId(id)
.WithContent(content)
.WithStatus(draft)
.WithTags(tags);
// Act.
blogPost = builder.Build();
// Assert.
blogPost.Should().BeEquivalentTo(builder);
}
public AddBlogPostCommandHandler(HandlerContext <BlogPostSummaryViewModel> context, BlogPostBuilder builder)
{
_dbContext = context.DbContext;
_context = context;
_builder = builder;
}
