/
DataRowSpecs.cs
467 lines (352 loc) · 15.9 KB
/
DataRowSpecs.cs
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using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using Xunit;
using Xunit.Sdk;
namespace FluentAssertions.Equivalency.Specs
{
public class DataRowSpecs : DataSpecs
{
[Fact]
public void When_data_rows_are_identical_equivalency_test_should_succeed()
{
// Arrange
var dataSet1 = CreateDummyDataSet<TypedDataSetSubclass>();
var dataSet2 = new TypedDataSetSubclass(dataSet1);
var dataTable1 = dataSet1.TypedDataTable1;
var dataTable2 = dataSet2.TypedDataTable1;
// Act & Assert
dataTable1[0].Should().BeEquivalentTo(dataTable2[0]);
}
[Fact]
public void When_data_rows_are_both_null_equivalency_test_should_succeed()
{
// Act & Assert
((DataRow)null).Should().BeEquivalentTo(null);
}
[Fact]
public void When_data_row_is_null_and_isnt_expected_to_be_then_equivalency_test_should_fail()
{
// Arrange
var dataSet = CreateDummyDataSet<TypedDataSet>();
var dataTable = dataSet.TypedDataTable1;
// Act
Action action = () => ((DataRow)null).Should().BeEquivalentTo(dataTable[0]);
// Assert
action.Should().Throw<XunitException>().WithMessage(
"Expected *to be non-null, but found null*");
}
[Fact]
public void When_data_row_is_expected_to_be_null_and_isnt_then_equivalency_test_should_fail()
{
// Arrange
var dataSet = CreateDummyDataSet<TypedDataSet>();
var dataTable = dataSet.TypedDataTable1;
// Act
Action action = () => dataTable[0].Should().BeEquivalentTo(null);
// Assert
action.Should().Throw<XunitException>().WithMessage("Expected dataTable[0] value to be null, but found *");
}
[Fact]
public void When_data_row_subject_is_deleted_and_expectation_is_not_but_the_row_state_is_excluded_equivalency_test_should_succeed()
{
// Arrange
var dataSet1 = CreateDummyDataSet<TypedDataSetSubclass>();
var dataSet2 = new TypedDataSetSubclass(dataSet1);
var dataTable1 = dataSet1.TypedDataTable2;
var dataTable2 = dataSet2.TypedDataTable2;
var dataRow1 = dataTable1[0];
var dataRow2 = dataTable2[0];
dataRow1.Delete();
// Act & Assert
dataRow1.Should().BeEquivalentTo(dataRow2, config => config
.Excluding(row => row.RowState));
}
[Fact]
public void When_data_row_expectation_is_deleted_and_subject_is_not_but_the_row_state_is_excluded_equivalency_test_should_succeed()
{
// Arrange
var dataSet1 = CreateDummyDataSet<TypedDataSetSubclass>();
var dataSet2 = new TypedDataSetSubclass(dataSet1);
var dataTable1 = dataSet1.TypedDataTable2;
var dataTable2 = dataSet2.TypedDataTable2;
var dataRow1 = dataTable1[0];
var dataRow2 = dataTable2[0];
dataRow2.Delete();
// Act & Assert
dataRow1.Should().BeEquivalentTo(dataRow2, config => config
.Excluding(row => row.RowState));
}
[Fact]
public void When_data_row_is_deleted_equivalency_test_should_succeed()
{
// Arrange
var dataSet1 = CreateDummyDataSet<TypedDataSetSubclass>();
var dataSet2 = new TypedDataSetSubclass(dataSet1);
var dataTable1 = dataSet1.TypedDataTable2;
var dataTable2 = dataSet2.TypedDataTable2;
var dataRow1 = dataTable1[0];
var dataRow2 = dataTable2[0];
dataRow1.Delete();
dataRow2.Delete();
// Act & Assert
dataRow1.Should().BeEquivalentTo(dataRow2);
}
[Fact]
public void When_data_row_is_modified_and_original_data_differs_equivalency_test_should_fail()
{
// Arrange
var dataSet1 = CreateDummyDataSet<TypedDataSetSubclass>();
var dataSet2 = new TypedDataSetSubclass(dataSet1);
var dataTable1 = dataSet1.TypedDataTable2;
var dataTable2 = dataSet2.TypedDataTable2;
var dataRow1 = dataTable1[0];
var dataRow2 = dataTable2[0];
dataRow1.Decimal++;
dataTable1.AcceptChanges();
dataRow1.Decimal--;
dataRow2.Decimal--;
dataTable2.AcceptChanges();
dataRow2.Decimal++;
// Act
Action action = () => dataRow1.Should().BeEquivalentTo(dataRow2);
// Assert
action.Should().Throw<XunitException>().WithMessage("Expected dataRow1[Decimal, DataRowVersion.Original] to be *, but found *");
}
[Fact]
public void When_data_row_is_modified_and_original_data_differs_but_original_data_is_excluded_then_equivalency_test_should_succeed()
{
// Arrange
var dataSet1 = CreateDummyDataSet<TypedDataSetSubclass>();
var dataSet2 = new TypedDataSetSubclass(dataSet1);
var dataTable1 = dataSet1.TypedDataTable2;
var dataTable2 = dataSet2.TypedDataTable2;
var dataRow1 = dataTable1[0];
var dataRow2 = dataTable2[0];
// Set the Decimal property to be the same for both rows, but by doing ++ and -- in
// different orders, the AcceptChanges call will load different values into the
// original data for each row.
dataRow1.Decimal++;
dataTable1.AcceptChanges();
dataRow1.Decimal--;
dataRow2.Decimal--;
dataTable2.AcceptChanges();
dataRow2.Decimal++;
// Act & Assert
dataRow1.Should().BeEquivalentTo(dataRow2, config => config
.ExcludingOriginalData());
}
[Fact]
public void When_data_row_type_does_not_match_and_mismatched_types_are_not_allowed_then_equivalency_test_should_fail()
{
// Arrange
var dataSet = CreateDummyDataSet<TypedDataSet>(identicalTables: true);
var dataSet2 = new TypedDataSetSubclass(dataSet);
var dataTable = dataSet.TypedDataTable1;
var dataTableOfMismatchedType = dataSet2.TypedDataTable2;
dataSet2.Tables.Remove(dataTable.TableName);
dataTableOfMismatchedType.TableName = dataTable.TableName;
// Act
Action action = () => dataTable[0].Should().BeEquivalentTo(dataTableOfMismatchedType[0]);
// Assert
action.Should().Throw<XunitException>().WithMessage("Expected dataTable[0] to be of type *TypedDataRow2, but found *TypedDataRow1*");
}
[Fact]
public void When_data_row_type_does_not_match_but_mismatched_types_are_allowed_then_equivalency_test_should_succeed()
{
// Arrange
var dataSet = CreateDummyDataSet<TypedDataSet>(identicalTables: true);
var dataSet2 = new TypedDataSetSubclass(dataSet);
var dataTable = dataSet.TypedDataTable1;
var dataTableOfMismatchedType = dataSet2.TypedDataTable2;
dataSet2.Tables.Remove(dataTable.TableName);
dataTableOfMismatchedType.TableName = dataTable.TableName;
// Act & Assert
dataTable[0].Should().BeEquivalentTo(dataTableOfMismatchedType[0], options => options.AllowingMismatchedTypes());
}
[Fact]
public void When_one_data_row_has_errors_and_the_other_does_not_and_the_corresponding_property_is_not_excluded_then_equivalency_test_should_fail()
{
// Arrange
var dataSet1 = CreateDummyDataSet<TypedDataSetSubclass>();
var dataSet2 = new TypedDataSetSubclass(dataSet1);
var dataRow1 = dataSet1.TypedDataTable1[0];
var dataRow2 = dataSet2.TypedDataTable1[0];
dataRow2.RowError = "Manually added error";
// Act
Action action = () => dataRow1.Should().BeEquivalentTo(dataRow2);
// Assert
action.Should().Throw<XunitException>().Which.Message.Should().Contain("HasErrors");
}
[Fact]
public void When_one_data_row_has_errors_and_the_other_does_not_but_the_corresponding_property_is_excluded_then_equivalency_test_should_succeed()
{
// Arrange
var dataSet1 = CreateDummyDataSet<TypedDataSetSubclass>();
var dataSet2 = new TypedDataSetSubclass(dataSet1);
var dataRow1 = dataSet1.TypedDataTable1[0];
var dataRow2 = dataSet2.TypedDataTable1[0];
dataRow2.RowError = "Manually added error";
// Act & Assert
dataRow1.Should().BeEquivalentTo(dataRow2, config => config.Excluding(dataRow => dataRow.HasErrors));
}
[Fact]
public void When_the_data_row_state_does_not_match_and_the_corresponding_property_is_not_excluded_equivalency_test_should_fail()
{
// Arrange
var dataSet1 = CreateDummyDataSet<TypedDataSetSubclass>();
var dataSet2 = new TypedDataSetSubclass(dataSet1);
var dataRow1 = dataSet1.TypedDataTable1[0];
var dataRow2 = dataSet2.TypedDataTable1[0];
dataRow1.DateTime = DateTime.UtcNow;
dataRow2.DateTime = dataRow1.DateTime;
dataSet2.AcceptChanges();
// Act
Action action = () => dataRow1.Should().BeEquivalentTo(dataRow2);
// Assert
action.Should().Throw<XunitException>().Which.Message.Should().Contain("RowState");
}
[Fact]
public void When_the_data_row_state_does_not_match_but_the_corresponding_property_is_excluded_equivalency_test_should_succeed()
{
// Arrange
var dataSet1 = CreateDummyDataSet<TypedDataSetSubclass>();
var dataSet2 = new TypedDataSetSubclass(dataSet1);
var dataRow1 = dataSet1.TypedDataTable1[0];
var dataRow2 = dataSet2.TypedDataTable1[0];
dataRow1.DateTime = DateTime.UtcNow;
dataRow2.DateTime = dataRow1.DateTime;
dataSet2.AcceptChanges();
// Act & Assert
dataRow1.Should().BeEquivalentTo(dataRow2, config => config.Excluding(dataRow => dataRow.RowState));
}
[Fact]
public void When_data_row_data_does_not_match_and_the_column_in_question_is_not_excluded_then_equivalency_test_should_fail()
{
// Arrange
var dataSet1 = CreateDummyDataSet<TypedDataSetSubclass>();
var dataSet2 = new TypedDataSetSubclass(dataSet1);
var dataRow1 = dataSet1.TypedDataTable1[0];
var dataRow2 = dataSet2.TypedDataTable1[0];
dataRow2.String = Guid.NewGuid().ToString();
dataSet2.AcceptChanges();
// Act
Action action = () => dataRow1.Should().BeEquivalentTo(dataRow2);
// Assert
action.Should().Throw<XunitException>().Which.Message.Should().Contain(dataRow2.String);
}
[Fact]
public void When_data_row_data_does_not_match_but_the_column_is_excluded_then_equivalency_test_should_succeed()
{
// Arrange
var dataSet1 = CreateDummyDataSet<TypedDataSetSubclass>();
var dataSet2 = new TypedDataSetSubclass(dataSet1);
var dataRow1 = dataSet1.TypedDataTable1[0];
var dataRow2 = dataSet2.TypedDataTable1[0];
dataRow2.DateTime = DateTime.UtcNow;
dataSet2.AcceptChanges();
// Act & Assert
dataRow1.Should().BeEquivalentTo(dataRow2, config => config.ExcludingColumn(dataSet2.TypedDataTable1.DateTimeColumn));
}
[Fact]
public void Data_row_is_not_equivalent_to_another_type()
{
// Arrange
var table = new DataTable();
var dataRow = table.NewRow();
var subject = new
{
DataRow = "foobar"
};
var expected = new
{
DataRow = dataRow
};
// Act
Action act = () => subject.Should().BeEquivalentTo(expected);
// Assert
act.Should().Throw<XunitException>()
.WithMessage("Expected*System.Data.DataRow*found System.String*");
}
[Fact]
public void When_subject_of_type_DataRowCollection_is_expected_and_is_not_it_fails()
{
// Arrange
var subject = new
{
DataRowCollection = "foo"
};
// Act
Action act = () => subject.Should().BeEquivalentTo((DataRowCollection)null);
// Assert
act.Should().Throw<XunitException>()
.WithMessage("Expected* to be of type DataRowCollection, but found*");
}
[Fact]
public void When_data_row_has_column_then_asserting_that_it_has_that_column_should_succeed()
{
// Arrange
var dataSet = CreateDummyDataSet<TypedDataSetSubclass>();
var dataRow = dataSet.TypedDataTable1[0];
string expectedColumnName = dataSet.TypedDataTable1.Columns.Cast<DataColumn>().Last().ColumnName;
// Act & Assert
dataRow.Should().HaveColumn(expectedColumnName);
}
[Fact]
public void When_data_row_does_not_have_column_then_asserting_that_it_has_that_column_should_fail()
{
// Arrange
var dataSet = CreateDummyDataSet<TypedDataSetSubclass>();
var dataRow = dataSet.TypedDataTable1[0];
// Act
Action action =
() => dataRow.Should().HaveColumn("Unicorn");
// Assert
action.Should().Throw<XunitException>().WithMessage("Expected dataRow to contain a column named *Unicorn*");
}
[Fact]
public void When_data_row_data_has_all_columns_being_asserted_then_it_should_succeed()
{
// Arrange
var dataSet = CreateDummyDataSet<TypedDataSetSubclass>();
var dataRow = dataSet.TypedDataTable1[0];
var subsetOfColumnNames = dataRow.Table.Columns.Cast<DataColumn>()
.Take(dataRow.Table.Columns.Count - 2)
.Select(column => column.ColumnName);
// Act & Assert
dataRow.Should().HaveColumns(subsetOfColumnNames);
}
[Fact]
public void When_data_row_data_has_only_some_of_the_columns_being_asserted_then_it_should_fail()
{
// Arrange
var dataSet = CreateDummyDataSet<TypedDataSetSubclass>();
var dataRow = dataSet.TypedDataTable1[0];
var subsetOfColumnNamesWithUnicorn = dataRow.Table.Columns.Cast<DataColumn>()
.Take(dataRow.Table.Columns.Count - 2)
.Select(column => column.ColumnName)
.Concat(new[] { "Unicorn" });
// Act
Action action =
() => dataRow.Should().HaveColumns(subsetOfColumnNamesWithUnicorn);
// Assert
action.Should().Throw<XunitException>().WithMessage("Expected table containing dataRow to contain a column named *Unicorn*");
}
[Fact]
public void When_data_row_data_has_none_of_the_columns_being_asserted_then_it_should_fail()
{
// Arrange
var dataSet = CreateDummyDataSet<TypedDataSetSubclass>();
var dataRow = dataSet.TypedDataTable1[0];
var columnNames = new List<string>();
columnNames.Add("Unicorn");
columnNames.Add("Dragon");
// Act
Action action =
() => dataRow.Should().HaveColumns(columnNames);
// Assert
action.Should().Throw<XunitException>().WithMessage("Expected table containing dataRow to contain a column named *Unicorn*");
}
}
}