void VerifyGridEquals(HaystackGrid grid, HaystackDictionary meta, object[] cols, HaystackValue[][] rows)
{
// meta
Assert.IsTrue(grid.Meta.Equals(meta));
// cols
Assert.AreEqual(grid.ColumnCount, cols.Length / 2);
for (int i = 0; i < grid.ColumnCount; ++i)
{
Assert.AreEqual(grid.Column(i).Name, cols[i * 2 + 0]);
Assert.IsTrue(grid.Column(i).Meta.Equals(cols[i * 2 + 1]));
}
// rows
Assert.AreEqual(grid.RowCount, rows.Length);
for (int ri = 0; ri < rows.Length; ++ri)
{
var expected = rows[ri];
var actual = grid.Row(ri);
for (int ci = 0; ci < expected.Length; ++ci)
{
Assert.AreEqual(expected[ci], actual[grid.Column(ci).Name]);
}
}
}
HaystackColumn VerifyCol(HaystackGrid g, int i, string n)
{
var col = g.Column(i);
Assert.IsTrue(g.Column(i).Equals(g.Column(n)));
Assert.AreEqual(col.Name, n);
return(col);
}
public void WriteGrid(HaystackGrid grid)
{
// meta
WriteValue("ver:\"").WriteValue(_version).WriteValue(".0\"").WriteMeta(grid.Meta).WriteNewline();
// cols
if (grid.ColumnCount == 0)
{
// technically this shoudl be illegal, but
// for robustness handle it here
throw new ArgumentException("Grid has no cols", "grid");
}
else
{
for (int i = 0; i < grid.ColumnCount; ++i)
{
if (i > 0)
{
WriteValue(',');
}
WriteColumn(grid.Column(i));
}
}
WriteNewline();
// rows
for (int i = 0; i < grid.RowCount; ++i)
{
WriteRow(grid, grid.Row(i));
WriteNewline();
}
}
public void TestEmpty()
{
var grid = new HaystackGrid();
Assert.AreEqual(grid.Meta, new HaystackDictionary());
Assert.AreEqual(grid.RowCount, 0);
Assert.IsTrue(grid.IsEmpty());
Assert.IsFalse(grid.HasColumn("foo"));
Assert.ThrowsException <HaystackUnknownNameException>(() => grid.Column("foo"));
}