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Edit Data: Better errors for possible truncation (#514)

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* Fix to make sql exceptions surface properly to user (with important notes!)

* Adding support for detecting column size issues when updating a cell

* Adding unit tests for the exception on read scenario
This commit is contained in:
Benjamin Russell
2017-10-21 11:08:40 -07:00
committed by Karl Burtram
parent 9499d73cec
commit e9bc97e290
37 changed files with 445 additions and 343 deletions
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22
test/Microsoft.SqlTools.ServiceLayer.UnitTests/EditData/CellUpdateTests.cs
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@@ -36,7 +36,7 @@ namespace Microsoft.SqlTools.ServiceLayer.UnitTests.EditData
{
// If: I attempt to create a CellUpdate to set it to NULL
const string nullString = "NULL";
DbColumnWrapper col = GetWrapper<string>("ntext", true);
DbColumnWrapper col = GetWrapper<string>("ntext");
CellUpdate cu = new CellUpdate(col, nullString);
// Then: The value should be a DBNull and the string value should be the same as what
@@ -46,7 +46,7 @@ namespace Microsoft.SqlTools.ServiceLayer.UnitTests.EditData
Assert.Equal(nullString, cu.ValueAsString);
Assert.Equal(col, cu.Column);
}
[Fact]
public void NullStringNotAllowedTest()
{
@@ -69,6 +69,17 @@ namespace Microsoft.SqlTools.ServiceLayer.UnitTests.EditData
Assert.Equal(col, cu.Column);
}
[Theory]
[InlineData("This is way too long")]
[InlineData("TooLong")]
public void StringTooLongTest(string value)
{
// If: I attempt to create a CellUpdate to set it to a large string
// Then: I should get an exception thrown
DbColumnWrapper col = GetWrapper<string>("nvarchar", false, 6);
Assert.Throws<FormatException>(() => new CellUpdate(col, value));
}
[Theory]
[MemberData(nameof(ByteArrayTestParams))]
public void ByteArrayTest(string strValue, byte[] expectedValue, string expectedString)
@@ -274,16 +285,17 @@ namespace Microsoft.SqlTools.ServiceLayer.UnitTests.EditData
Assert.True(ec.IsDirty);
}
private static DbColumnWrapper GetWrapper<T>(string dataTypeName, bool allowNull = true)
private static DbColumnWrapper GetWrapper<T>(string dataTypeName, bool allowNull = true, int? colSize = null)
{
return new DbColumnWrapper(new CellUpdateTestDbColumn(typeof(T), dataTypeName, allowNull));
return new DbColumnWrapper(new CellUpdateTestDbColumn(typeof(T), dataTypeName, allowNull, colSize));
}
private class CellUpdateTestDbColumn : DbColumn
{
public CellUpdateTestDbColumn(Type dataType, string dataTypeName, bool allowNull = true)
public CellUpdateTestDbColumn(Type dataType, string dataTypeName, bool allowNull = true, int? colSize = null)
{
AllowDBNull = allowNull;
ColumnSize = colSize;
DataType = dataType;
DataTypeName = dataTypeName;
}