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using System;
using System.Collections.Generic;
using System.Linq;
using NUnit.Framework;
namespace Xamarin.Forms.Core.UnitTests
{
[TestFixture]
public class SearchBarUnitTests : BaseTestFixture
{
[Test]
public void TestConstructor ()
{
SearchBar searchBar = new SearchBar ();
Assert.Null (searchBar.Placeholder);
Assert.Null (searchBar.Text);
}
[Test]
public void TestContentsChanged ()
{
SearchBar searchBar = new SearchBar ();
bool thrown = false;
searchBar.TextChanged += (sender, e) => thrown = true;
searchBar.Text = "Foo";
Assert.True (thrown);
}
[Test]
public void TestSearchButtonPressed ()
{
SearchBar searchBar = new SearchBar ();
bool thrown = false;
searchBar.SearchButtonPressed += (sender, e) => thrown = true;
searchBar.OnSearchButtonPressed ();
Assert.True (thrown);
}
[Test]
public void TestSearchCommandParameter ()
{
var searchBar = new SearchBar ();
object param = "Testing";
object result = null;
searchBar.SearchCommand = new Command (p => { result = p; });
searchBar.SearchCommandParameter = param;
searchBar.OnSearchButtonPressed ();
Assert.AreEqual (param, result);
}
[TestCase (null, "Text Changed")]
[TestCase ("Initial Text", null)]
[TestCase ("Initial Text", "Text Changed")]
public void SearchBarTextChangedEventArgs (string initialText, string finalText)
{
var searchBar = new SearchBar {
Text = initialText
};
SearchBar searchBarFromSender = null;
string oldText = null;
string newText = null;
searchBar.TextChanged += (s, e) => {
searchBarFromSender = (SearchBar)s;
oldText = e.OldTextValue;
newText = e.NewTextValue;
};
searchBar.Text = finalText;
Assert.AreEqual (searchBar, searchBarFromSender);
Assert.AreEqual (initialText, oldText);
Assert.AreEqual (finalText, newText);
}
[Test]
public void CommandCanExecuteUpdatesEnabled ()
{
var searchBar = new SearchBar ();
bool result = false;
var bindingContext = new {
Command = new Command (() => { }, () => result)
};
searchBar.SetBinding (SearchBar.SearchCommandProperty, "Command");
searchBar.BindingContext = bindingContext;
Assert.False (searchBar.IsEnabled);
result = true;
bindingContext.Command.ChangeCanExecute ();
Assert.True (searchBar.IsEnabled);
}
}
}
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