public void WhenChannelsHaveNoIdsReturnsChannelWithHighestVersion()
{
var sut = new BestChannelFinder(Substitute.For <IDebuggingInfoLogger>());
var appcast = RemoteAppcast.MakeFromJson(_twoChannelJson);
var selectedChannel = sut.Find(4, appcast.Channels);
Assert.IsNotNull(selectedChannel);
Assert.AreEqual(appcast.Channels[1], selectedChannel);
}
public void ReturnsTheBestChannelBasedOnVersion()
{
var sut = new BestChannelFinder(Substitute.For <IDebuggingInfoLogger>());
var channels = new List <Channel> {
new MockChannel(2, "1.1.1"), new MockChannel(3, "1.0.1")
};
var selectedChannel = sut.Find(3, channels);
Assert.IsNotNull(selectedChannel);
Assert.AreEqual(channels[0], selectedChannel);
}
public void ReturnsHighestVersionChannelIfNoChannelMatches()
{
var sut = new BestChannelFinder(Substitute.For <IDebuggingInfoLogger>());
var channels = new List <Channel> {
new MockChannel(2, "2.1.1"), new MockChannel(3, "1.1.1")
};
var selectedChannel = sut.Find(1, channels);
Assert.IsNotNull(selectedChannel);
Assert.AreEqual(selectedChannel, channels[0]);
}
public void ReturnsOnlyChannelLessThanEqualId()
{
var sut = new BestChannelFinder(Substitute.For <IDebuggingInfoLogger>());
var channels = new List <Channel>
{
new MockChannel(2, "1.1.1"),
new MockChannel(3, "1.2.1"),
new MockChannel(4, "2.2.2")
};
var selectedChannel = sut.Find(3, channels);
Assert.IsNotNull(selectedChannel);
Assert.AreEqual(channels[1], selectedChannel);
}
public void ReturnsMoreStableVersionInCaseOfVersionMatch()
{
var sut = new BestChannelFinder(Substitute.For <IDebuggingInfoLogger>());
var channels = new List <Channel>
{
new MockChannel(2, "1.1.1"),
new MockChannel(3, "2.2.2"),
new MockChannel(4, "2.2.2")
};
var selectedChannel = sut.Find(4, channels);
Assert.IsNotNull(selectedChannel);
Assert.AreEqual(channels[1], selectedChannel);
}
public void WhenChannelsHaveMixIdsReturnsChannelWithHighestVersionLessThanSubscribedId()
{
var sut = new BestChannelFinder(Substitute.For <IDebuggingInfoLogger>());
var appcast = RemoteAppcast.MakeFromJson(_threeChannelJson);
// subscribed to 3, and there is an id of 2 in the json
var selectedChannel = sut.Find(3, appcast.Channels);
Assert.IsNotNull(selectedChannel);
Assert.AreEqual(appcast.Channels[1], selectedChannel);
// subscribed to 1, but because there is id that matches it, it returns the highest version of all
selectedChannel = sut.Find(1, appcast.Channels);
Assert.IsNotNull(selectedChannel);
Assert.AreEqual(appcast.Channels[2], selectedChannel);
}
public void ReturnsNullIfChannelListIsNull()
{
var sut = new BestChannelFinder(Substitute.For <IDebuggingInfoLogger>());
Assert.IsNull(sut.Find(1, null));
}
