public void GetGroupedRows_ReturnsCorrectGroups() { var rows = GetSampleRows(); var groupedRows = _lpService.GetGroupedRows(rows); var group1 = groupedRows[0]; var group2 = groupedRows[1]; var expectedGroup1 = "Phase Angle B"; var expectedGroup2 = "Voltage Phase C Min"; var actualGroup1 = group1[0].DataType; var actualGroup2 = group2[0].DataType; Assert.AreEqual(expectedGroup1, actualGroup1); Assert.AreEqual(expectedGroup2, actualGroup2); }