it('should trigger a changed signal', () => {
let called = false;
let value = new ObservableString('full');
value.changed.connect((sender, args) => {
expect(sender).to.be(value);
expect(args.type).to.be('set');
expect(args.start).to.be(0);
expect(args.end).to.be(0);
expect(args.value).to.be('');
called = true;
});
value.clear();
expect(called).to.be(true);
});
it('should trigger a changed signal', () => {
let called = false;
let value = new ObservableString('one two two three');
value.changed.connect((sender, args) => {
expect(sender).to.be(value);
expect(args.type).to.be('remove');
expect(args.start).to.be(4);
expect(args.end).to.be(8);
expect(args.value).to.be('two ');
called = true;
});
value.remove(4,8);
expect(called).to.be(true);
});
it('should test whether the string is disposed', () => {
let value = new ObservableString();
expect(value.isDisposed).to.be(false);
value.dispose();
expect(value.isDisposed).to.be(true);
});
it('should empty the string', () => {
let value = new ObservableString('full');
value.clear();
expect(value.text.length).to.be(0);
expect(value.text).to.be('');
});
it('should remove a substring from the string', () => {
let value = new ObservableString('one two two three');
value.remove(4,8);
expect(value.text).to.eql('one two three');
});
it('should insert an substring into the string at a specific index', () => {
let value = new ObservableString('one three');
value.insert(4, 'two ');
expect(value.text).to.eql('one two three');
});