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using VersOne.Epub.Schema;
namespace VersOne.Epub.Test.Unit.Schema.Opf.Metadata
{
public class EpubMetadataSubjectTests
{
private const string SUBJECT = "Test Subject";
private const string ID = "subject";
private const EpubTextDirection TEXT_DIRECTION = EpubTextDirection.LEFT_TO_RIGHT;
private const string LANGUAGE = "en";
[Fact(DisplayName = "Constructing a EpubMetadataSubject instance with non-null parameters should succeed")]
public void ConstructorWithNonNullParametersTest()
{
EpubMetadataSubject epubMetadataSubject = new(SUBJECT, ID, TEXT_DIRECTION, LANGUAGE);
Assert.Equal(SUBJECT, epubMetadataSubject.Subject);
Assert.Equal(ID, epubMetadataSubject.Id);
Assert.Equal(TEXT_DIRECTION, epubMetadataSubject.TextDirection);
Assert.Equal(LANGUAGE, epubMetadataSubject.Language);
}
[Fact(DisplayName = "Constructor should throw ArgumentNullException if subject parameter is null")]
public void ConstructorWithNullContributorTest()
{
Assert.Throws<ArgumentNullException>(() => new EpubMetadataSubject(null!, ID, TEXT_DIRECTION, LANGUAGE));
}
[Fact(DisplayName = "Constructing a EpubMetadataSubject instance with null id parameter should succeed")]
public void ConstructorWithNullIdTest()
{
EpubMetadataSubject epubMetadataSubject = new(SUBJECT, null, TEXT_DIRECTION, LANGUAGE);
Assert.Equal(SUBJECT, epubMetadataSubject.Subject);
Assert.Null(epubMetadataSubject.Id);
Assert.Equal(TEXT_DIRECTION, epubMetadataSubject.TextDirection);
Assert.Equal(LANGUAGE, epubMetadataSubject.Language);
}
[Fact(DisplayName = "Constructing a EpubMetadataSubject instance with null textDirection parameter should succeed")]
public void ConstructorWithNullTextDirectionTest()
{
EpubMetadataSubject epubMetadataSubject = new(SUBJECT, ID, null, LANGUAGE);
Assert.Equal(SUBJECT, epubMetadataSubject.Subject);
Assert.Equal(ID, epubMetadataSubject.Id);
Assert.Null(epubMetadataSubject.TextDirection);
Assert.Equal(LANGUAGE, epubMetadataSubject.Language);
}
[Fact(DisplayName = "Constructing a EpubMetadataSubject instance with null language parameter should succeed")]
public void ConstructorWithNullLanguageTest()
{
EpubMetadataSubject epubMetadataSubject = new(SUBJECT, ID, TEXT_DIRECTION, null);
Assert.Equal(SUBJECT, epubMetadataSubject.Subject);
Assert.Equal(ID, epubMetadataSubject.Id);
Assert.Equal(TEXT_DIRECTION, epubMetadataSubject.TextDirection);
Assert.Null(epubMetadataSubject.Language);
}
}
}
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