public MainViewModelShould()
{
// Arrange
// Create a droplet bin model and populate with 3 wells
// with 2 having counts below 300
_dropletBin = new DropletBin()
{
PlateDropletInfo = new PlateDropletInfo()
{
Version = 01,
DropletInfo = new DropletInfo()
{
Wells = new List<Well>()
{
new Well()
{
WellName = "A01",
WellIndex = 0,
DropletCount = 500
},
new Well()
{
WellName = "A02",
WellIndex = 1,
DropletCount = 100
},
new Well()
{
WellName = "A03",
WellIndex = 2,
DropletCount = 250
},
}
}
}
};
_mockJsonDataService = new Mock<IJsonDataService>();
_mockJsonDataService.Setup<DataTable>(dt => dt.GetDataTableFromJson())
.Returns(new DataTable());
_mockJsonDataService.Setup<DropletBin>(d => d.GetDropletBinFromJson())
.Returns(_dropletBin);
_mockFileIOService = new Mock<IFileIOService>();
_mockFileIOService.Setup(x => x.OpenDatafile())
.Returns(TestFilePath);
_sut = new MainViewModel(_mockJsonDataService.Object, _mockFileIOService.Object);
}
public DropletBin GetDropletBin(string filePath)
{
DropletBin dropletBin = null;
try
{
var rawJsonFile = File.ReadAllText(filePath);
dropletBin = JsonConvert.DeserializeObject <DropletBin>(rawJsonFile);
}
catch (Exception ex)
{
//todo: Logging
}
return(dropletBin);
}
private int GetLowDropletCount(DropletBin dropletBin)
{
if (dropletBin == null)
{
return(-1);
}
var lowCount = 0;
foreach (var well in dropletBin.PlateDropletInfo.DropletInfo.Wells)
{
if (well.DropletCount < DropletThreshold)
{
lowCount++;
}
}
return(lowCount);
}
public DataTable GetDataTableFromJson()
{
DropletBin dropletBin = null;
List <Well> wells = null; // Rep. the array of droplet counts.
DataTable table = null;
try
{
// Get the deserialized JSON.
dropletBin = GetDropletBinFromJson();
// Need to sort the JSON droplet count array, so we put them in a list
foreach (var well in dropletBin.PlateDropletInfo.DropletInfo.Wells)
{
_wells.Add(well);
}
_wells.Sort(); // See Well class for property that we sort on: WellIndex
// Populate an in memory data table for easy display by consuming dataGrid
table = new DataTable();
// Setup columns
var columnCount = _wells.Count / NumberOfRowsForTable;
string[] columnNames = new string[columnCount + 1];
columnNames[0] = "-";
for (int i = 1; i < columnCount + 1; i++)
{
columnNames[i] = i.ToString();
}
foreach (var cn in columnNames)
{
table.Columns.Add(cn, typeof(string));
}
// Organize the wells array into 8 x xx rows
var rows = _wells.Select(i => i.DropletCount).ToArray();
// This list is from the WellNames of each well array item. See the original JSON.
List <char> ids = new List <char>()
{
'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H'
};
int itemsPerRow = 0;
for (int i = 0; i < NumberOfRowsForTable; i++)
{
object[] values = new object[columnNames.Length];
for (int j = 0; j < columnCount; j++)
{
if (j == 0) // add Id
{
values[j] = ids.First <char>();
ids.RemoveAt(j);
}
values[j + 1] = rows[j + itemsPerRow];
}
itemsPerRow += columnCount;
table.Rows.Add(values);
}
ClearCollections();
}
catch (Exception ex)
{
//todo: Logging
}
return(table);
}