public void VersionedStringBuilder_VersionIsNotIncremented_WhenAppendStringBuilderIsCalled_AndValueIsNull()
{
var builder = new VersionedStringBuilder("Hello, world!");
builder.Append((StringBuilder)null);
TheResultingValue(builder.Version).ShouldBe(0);
TheResultingString(builder.ToString()).ShouldBe("Hello, world!");
}
public void VersionedStringBuilder_VersionIsIncremented_WhenAppendVersionedStringBuilderIsCalled()
{
var builder = new VersionedStringBuilder("Hello, world!");
var value = new VersionedStringBuilder(" Goodbye, world!");
builder.Append(value);
TheResultingValue(builder.Version).ShouldBe(1);
TheResultingString(builder.ToString()).ShouldBe("Hello, world! Goodbye, world!");
}
public void VersionedStringBuilder_VersionIsNotIncremented_WhenAppendVersionedStringSourceIsCalled_WithInvalidSource()
{
var builder = new VersionedStringBuilder("Hello, world!");
var value = new VersionedStringSource();
builder.Append(value);
TheResultingValue(builder.Version).ShouldBe(0);
TheResultingString(builder.ToString()).ShouldBe("Hello, world!");
}