public void First_Launch_After_Build_Downgrade()
{
VersionTracking.Track();
Preferences.Set(versionsKey, string.Join("|", new string[] { currentVersion }), sharedName);
Preferences.Set(buildsKey, string.Join("|", new string[] { currentBuild, "10", "20" }), sharedName);
VersionTracking.InitVersionTracking();
output.WriteLine(VersionTracking.GetStatus());
Assert.Equal(currentBuild, VersionTracking.CurrentBuild);
Assert.Equal("20", VersionTracking.PreviousBuild);
Assert.Equal("10", VersionTracking.FirstInstalledBuild);
Assert.False(VersionTracking.IsFirstLaunchEver);
Assert.False(VersionTracking.IsFirstLaunchForCurrentVersion);
Assert.True(VersionTracking.IsFirstLaunchForCurrentBuild);
VersionTracking.InitVersionTracking();
Assert.Equal(currentBuild, VersionTracking.CurrentBuild);
Assert.Equal("20", VersionTracking.PreviousBuild);
Assert.Equal("10", VersionTracking.FirstInstalledBuild);
Assert.False(VersionTracking.IsFirstLaunchEver);
Assert.False(VersionTracking.IsFirstLaunchForCurrentVersion);
Assert.False(VersionTracking.IsFirstLaunchForCurrentBuild);
}