public void ClockGroupCollectionTest_ClearGroup() { var mf = new MainForm(); var df = mf.MyDataFile; var d = new ClockVMCollection.Model(df); ClockGroupMCollection c = d.Groups; d.AppliedFilter = new FilterM(d); var td1 = new TimerData(df, mf.MultiAudioPlayer) { GroupName = "g1" }; var td2 = new TimerData(df, mf.MultiAudioPlayer) { GroupName = "g2" }; var td3 = new TimerData(df, mf.MultiAudioPlayer) { GroupName = "g2" }; d.AddClocks(td1, td2, td3); c.ClearGroup("g2"); Assert.AreEqual("g1", td1.GroupName); Assert.AreEqual("", td2.GroupName); Assert.AreEqual("", td3.GroupName); }