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Export headers in an empty result set (#1434)

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* Minimal changes to make headers appear on empty result sets

* Columns for everyone!

* Updating tests - some don't pass yet

* Adding some more tests to verify the changes for column/row selection

* null default columns

* Updates to comments as per PR comments
This commit is contained in:
Benjamin Russell
2022-03-31 11:10:32 -05:00
committed by GitHub
parent 5d805bd678
commit 2ace786d95
24 changed files with 814 additions and 499 deletions
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36
test/Microsoft.SqlTools.ServiceLayer.UnitTests/QueryExecution/Execution/ResultSetTests.cs
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@@ -1,4 +1,4 @@
//
//
// Copyright (c) Microsoft. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
//
@@ -159,7 +159,7 @@ namespace Microsoft.SqlTools.ServiceLayer.UnitTests.QueryExecution.Execution
// Setup: Create a new result set with valid db data reader
var fileStreamFactory = MemoryFileSystem.GetFileStreamFactory();
ResultSet resultSet = new ResultSet(Common.Ordinal, Common.Ordinal, fileStreamFactory);
Assert.That(() => testMethod(resultSet), Throws.InstanceOf<Exception>(), "I have a result set that has not been read. I attempt to call a method on it. It should throw an exception");
Assert.Catch(() => testMethod(resultSet), "I have a result set that has not been read. I attempt to call a method on it. It should throw an exception");
}
public static IEnumerable<object[]> CallMethodWithoutReadingData
@@ -200,7 +200,7 @@ namespace Microsoft.SqlTools.ServiceLayer.UnitTests.QueryExecution.Execution
$"Complete Check failed.\r\n\t\t resultSummariesFromUpdatedCallback:{string.Join("\r\n\t\t\t", resultSummariesFromUpdatedCallback)}");
// ... The no of rows in the final updateResultSet/AvailableResultSet should be equal to that in the Complete Result Set.
// ... The no of rows in the final updateResultSet/AvailableResultSet should be equal to that in the Complete Result Set.
//
Assert.True(resultSummaryFromCompleteCallback.RowCount == resultSummariesFromUpdatedCallback.Last().RowCount,
$"The row counts of the complete Result Set and Final update result set do not match"
@@ -310,7 +310,7 @@ namespace Microsoft.SqlTools.ServiceLayer.UnitTests.QueryExecution.Execution
// If:
// ... I attempt to read back the results
// Then:
// Then:
// ... I should only get one row
//
var task = resultSet.GetSubset(0, 10);
@@ -320,7 +320,7 @@ namespace Microsoft.SqlTools.ServiceLayer.UnitTests.QueryExecution.Execution
}
[Test, Sequential]
public async Task GetSubsetInvalidParameters([Values(-1,20,0)] int startRow,
public async Task GetSubsetInvalidParameters([Values(-1,20,0)] int startRow,
[Values(0,0,-1)] int rowCount)
{
// If:
@@ -338,7 +338,7 @@ namespace Microsoft.SqlTools.ServiceLayer.UnitTests.QueryExecution.Execution
}
[Test]
public async Task GetSubsetSuccess([Values(0,1)]int startRow,
public async Task GetSubsetSuccess([Values(0,1)]int startRow,
[Values(3,20)] int rowCount)
{
// If:
@@ -376,7 +376,7 @@ namespace Microsoft.SqlTools.ServiceLayer.UnitTests.QueryExecution.Execution
ResultSet resultSet = new ResultSet(Common.Ordinal, Common.Ordinal, fileStreamFactory);
await resultSet.ReadResultToEnd(mockReader, CancellationToken.None);
Assert.That(() => actionToPerform(resultSet), Throws.InstanceOf<Exception>(), "Attempting to read an invalid row should fail");
Assert.Catch<Exception>(() => actionToPerform(resultSet), "Attempting to read an invalid row should fail");
}
public static IEnumerable<object[]> RowInvalidParameterData
@@ -423,7 +423,7 @@ namespace Microsoft.SqlTools.ServiceLayer.UnitTests.QueryExecution.Execution
[Test]
public async Task AddRowNoRows()
{
// Setup:
// Setup:
// ... Create a standard result set with standard data
var fileFactory = MemoryFileSystem.GetFileStreamFactory();
var mockReader = GetReader(Common.StandardTestDataSet, false, Constants.StandardQuery);
@@ -434,7 +434,7 @@ namespace Microsoft.SqlTools.ServiceLayer.UnitTests.QueryExecution.Execution
var emptyReader = GetReader(new[] {new TestResultSet(5, 0)}, false, Constants.StandardQuery);
// If: I add a row with a reader that has no rows
// Then:
// Then:
// ... I should get an exception
Assert.ThrowsAsync<InvalidOperationException>(() => resultSet.AddRow(emptyReader));
@@ -454,17 +454,17 @@ namespace Microsoft.SqlTools.ServiceLayer.UnitTests.QueryExecution.Execution
// ... Create a mock reader that will throw on read
var throwingReader = GetReader(new[] {new TestResultSet(5, 0)}, true, Constants.StandardQuery);
Assert.ThrowsAsync<TestDbException>(() => resultSet.AddRow(throwingReader), "I add a row with a reader that throws on read. I should get an exception");
// ... The row count should not have changed
Assert.AreEqual(Common.StandardRows, resultSet.RowCount);
Assert.ThrowsAsync<TestDbException>(() => resultSet.AddRow(throwingReader), "I add a row with a reader that throws on read. I should get an exception");
// ... The row count should not have changed
Assert.AreEqual(Common.StandardRows, resultSet.RowCount);
}
[Test]
public async Task AddRowSuccess()
{
// Setup:
// Setup:
// ... Create a standard result set with standard data
var fileFactory = MemoryFileSystem.GetFileStreamFactory();
var mockReader = GetReader(Common.StandardTestDataSet, false, Constants.StandardQuery);
@@ -490,7 +490,7 @@ namespace Microsoft.SqlTools.ServiceLayer.UnitTests.QueryExecution.Execution
[Test]
public async Task UpdateRowNoRows()
{
// Setup:
// Setup:
// ... Create a standard result set with standard data
var fileFactory = MemoryFileSystem.GetFileStreamFactory();
var mockReader = GetReader(Common.StandardTestDataSet, false, Constants.StandardQuery);
@@ -501,7 +501,7 @@ namespace Microsoft.SqlTools.ServiceLayer.UnitTests.QueryExecution.Execution
var emptyReader = GetReader(new[] { new TestResultSet(5, 0) }, false, Constants.StandardQuery);
// If: I add a row with a reader that has no rows
// Then:
// Then:
// ... I should get an exception
Assert.ThrowsAsync<InvalidOperationException>(() => resultSet.UpdateRow(0, emptyReader));
@@ -512,7 +512,7 @@ namespace Microsoft.SqlTools.ServiceLayer.UnitTests.QueryExecution.Execution
[Test]
public async Task UpdateRowSuccess()
{
// Setup:
// Setup:
// ... Create a standard result set with standard data
var fileFactory = MemoryFileSystem.GetFileStreamFactory();
var mockReader = GetReader(Common.StandardTestDataSet, false, Constants.StandardQuery);