public void GetHashCodeWithVersions()
{
DataSet ds = new DataSet();
DataTable dt = new DataTable("MyTable");
ds.Tables.Add(dt);
dt.Columns.Add("col1");
dt.Columns.Add("col2");
DataRow r1 = dt.Rows.Add(new object [] { "foo", "bar" });
DataRow r2 = dt.Rows.Add(new object [] { "foo", "bar" });
ds.AcceptChanges();
DataRowComparer <DataRow> c = DataRowComparer.Default;
Assert.IsTrue(c.GetHashCode(r1) == c.GetHashCode(r2), "#1");
/*
* // LAMESPEC: .NET fails here
* r2 ["col2"] = "baz";
* r2.AcceptChanges ();
* Assert.IsFalse (c.GetHashCode (r1) == c.GetHashCode (r2), "#2");
* ds.AcceptChanges (); // now r2 original value is "baz"
* r2 ["col2"] = "bar";
* Assert.IsFalse (c.GetHashCode (r1) == c.GetHashCode (r2), "#3");
* // LAMESPEC: .NET fails here
* DataRow r3 = dt.Rows.Add (new object [] {"foo", "baz"});
* Assert.IsFalse (c.GetHashCode (r1) == c.GetHashCode (r3), "#4");
*/
}
public void GetHashCodeWithVersions()
{
DataSet ds = new DataSet();
DataTable dt = new DataTable("MyTable");
ds.Tables.Add(dt);
dt.Columns.Add("col1");
dt.Columns.Add("col2");
DataRow r1 = dt.Rows.Add(new object[] { "foo", "bar" });
DataRow r2 = dt.Rows.Add(new object[] { "foo", "bar" });
ds.AcceptChanges();
DataRowComparer <DataRow> c = DataRowComparer.Default;
Assert.True(c.GetHashCode(r1) == c.GetHashCode(r2), "#1");
}
public void GetHashCode_Row_Null()
{
DataRowComparer <DataRow> c = DataRowComparer.Default;
try {
c.GetHashCode(null);
Assert.Fail("#1");
} catch (ArgumentNullException ex) {
Assert.AreEqual(typeof(ArgumentNullException), ex.GetType(), "#2");
Assert.IsNull(ex.InnerException, "#3");
Assert.IsNotNull(ex.Message, "#4");
Assert.AreEqual("row", ex.ParamName, "#5");
}
}
public void GetHashCode_Row_Null()
{
DataRowComparer <DataRow> c = DataRowComparer.Default;
try
{
c.GetHashCode(null);
Assert.True(false, "#1");
}
catch (ArgumentNullException ex)
{
Assert.Equal(typeof(ArgumentNullException), ex.GetType());
Assert.Null(ex.InnerException);
Assert.NotNull(ex.Message);
Assert.Equal("row", ex.ParamName);
}
}