public void VersionedStringBuilder_VersionIsIncremented_WhenInsertCharIsCalled()
{
var builder = new VersionedStringBuilder("Hello, world!");
var value = '!';
builder.Insert(12, value);
TheResultingValue(builder.Version).ShouldBe(1);
TheResultingString(builder.ToString()).ShouldBe("Hello, world!!");
}
public void VersionedStringBuilder_VersionIsIncremented_WhenInsertVersionedStringSourceIsCalled_WithValidStringBuilderSource()
{
var builder = new VersionedStringBuilder("Hello, world!");
var source = new VersionedStringBuilder(" and goodbye");
var value = new VersionedStringSource(source);
builder.Insert(5, value);
TheResultingValue(builder.Version).ShouldBe(1);
TheResultingString(builder.ToString()).ShouldBe("Hello and goodbye, world!");
}
public void VersionedStringBuilder_VersionIsNotIncremented_WhenInsertVersionedStringSourceIsCalled_WithInvalidSource()
{
var builder = new VersionedStringBuilder("Hello, world!");
var value = new VersionedStringSource();
builder.Insert(5, value);
TheResultingValue(builder.Version).ShouldBe(0);
TheResultingString(builder.ToString()).ShouldBe("Hello, world!");
}
public void VersionedStringBuilder_VersionIsNotIncremented_WhenInsertVersionedStringBuilderIsCalled_AndValueIsNull()
{
var builder = new VersionedStringBuilder("Hello, world!");
builder.Insert(0, (VersionedStringBuilder)null);
TheResultingValue(builder.Version).ShouldBe(0);
TheResultingString(builder.ToString()).ShouldBe("Hello, world!");
}