This is the seventeenth part of the SQLxD series. For your convenience you can find other parts in the table of contents in Part 1 – XML Transformation
Last time we implemented aggregates, today we test them. Here are the snippets:
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using Model; using NUnit.Framework; using QueryLogic.Aggregates; using QueryLogic.Expressions.CellExpressions; namespace QueryLogic.Test.Aggregates { internal class CountAggregateTests { [Test] public void Calculate_NotNullValuesPassed_ShouldReturnCount() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, "13")); var secondRow = new Row(); secondRow.AddCell(new Cell(columnHeader, "1")); var thirdRow = new Row(); thirdRow.AddCell(new Cell(columnHeader, "10")); var relation = new Relation(); relation.AddRow(firstRow); relation.AddRow(secondRow); relation.AddRow(thirdRow); var expectedColumnHeader = new ColumnHeader("", ""); var expectedCell = new Cell(expectedColumnHeader, "3"); var aggregate = new CountAggregate(new GetOriginalCellCellExpression(expectedColumnHeader)); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(result, Is.EqualTo(expectedCell)); } [Test] public void Calculate_EmptyRelation_ShouldReturnZero() { // Arrange var relation = new Relation(); var expectedColumnHeader = new ColumnHeader("", ""); var aggregate = new CountAggregate(new GetOriginalCellCellExpression(expectedColumnHeader)); var expectedCell = new Cell(expectedColumnHeader, "0"); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(result, Is.EqualTo(expectedCell)); } [Test] public void Calculate_AliasPassed_ShouldReturnCellWithNameSet() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, "13")); var relation = new Relation(); relation.AddRow(firstRow); var expectedColumnHeader = new ColumnHeader("", "count"); var expectedCell = new Cell(expectedColumnHeader, "1"); var aggregate = new CountAggregate(new GetOriginalCellCellExpression(expectedColumnHeader), "count"); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(result, Is.EqualTo(expectedCell)); } } } |
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using System; using Model; using NUnit.Framework; using QueryLogic.Aggregates; using QueryLogic.Expressions.CellExpressions; namespace QueryLogic.Test.Aggregates { public class CountColumnAggregateTests { [Test] public void Calculate_NotNullValuesPassed_ShouldReturnCount() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, "13")); var secondRow = new Row(); secondRow.AddCell(new Cell(columnHeader, "1")); var thirdRow = new Row(); thirdRow.AddCell(new Cell(columnHeader, "10")); var relation = new Relation(); relation.AddRow(firstRow); relation.AddRow(secondRow); relation.AddRow(thirdRow); var aggregate = new CountColumnAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); var expectedCell = new Cell(new ColumnHeader("", ""), "3"); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(Convert.ToDouble(result), Is.EqualTo(Convert.ToDouble(expectedCell))); } [Test] public void Calculate_ValuesWithNullPassed_ShouldReturnNonNullCount() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, "14")); var secondRow = new Row(); secondRow.AddCell(new Cell(columnHeader, null)); var thirdRow = new Row(); thirdRow.AddCell(new Cell(columnHeader, "10")); var relation = new Relation(); relation.AddRow(firstRow); relation.AddRow(secondRow); relation.AddRow(thirdRow); var aggregate = new CountColumnAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); var expectedCell = new Cell(new ColumnHeader("", ""), "2"); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(Convert.ToDouble(result), Is.EqualTo(Convert.ToDouble(expectedCell))); } [Test] public void Calculate_NullsPassed_ShouldReturnValueZero() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, null)); var secondRow = new Row(); secondRow.AddCell(new Cell(columnHeader, null)); var relation = new Relation(); relation.AddRow(firstRow); relation.AddRow(secondRow); var aggregate = new CountColumnAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); var expectedCell = new Cell(new ColumnHeader("", ""), "0"); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(Convert.ToDouble(result), Is.EqualTo(Convert.ToDouble(expectedCell))); } [Test] public void Calculate_EmptyRelation_ShouldReturnValueZero() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var relation = new Relation(); var aggregate = new CountColumnAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); var expectedCell = new Cell(new ColumnHeader("", ""), "0"); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(Convert.ToDouble(result), Is.EqualTo(Convert.ToDouble(expectedCell))); } [Test] public void Calculate_AliasPassed_ShouldReturnCellWithSetName() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, "13")); var relation = new Relation(); relation.AddRow(firstRow); var aggregate = new CountColumnAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", "count")), "count"); var expectedCell = new Cell(new ColumnHeader("", "count"), "1"); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(Convert.ToDouble(result), Is.EqualTo(Convert.ToDouble(expectedCell))); } } } |
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using System; using Model; using NUnit.Framework; using QueryLogic.Aggregates; using QueryLogic.Exceptions; using QueryLogic.Expressions.CellExpressions; namespace QueryLogic.Test.Aggregates { internal class AverageAggregateTests { [Test] public void Calculate_NotNullDoublesPassed_ShouldReturnAverageValue() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, "13")); var secondRow = new Row(); secondRow.AddCell(new Cell(columnHeader, "1")); var thirdRow = new Row(); thirdRow.AddCell(new Cell(columnHeader, "10")); var relation = new Relation(); relation.AddRow(firstRow); relation.AddRow(secondRow); relation.AddRow(thirdRow); var aggregate = new AverageAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); var expectedCell = new Cell(new ColumnHeader("", ""), "8"); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(Convert.ToDouble(result), Is.EqualTo(Convert.ToDouble(expectedCell))); } [Test] public void Calculate_DoublesWithNullPassed_ShouldReturnAverageValue() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, "14")); var secondRow = new Row(); secondRow.AddCell(new Cell(columnHeader, null)); var thirdRow = new Row(); thirdRow.AddCell(new Cell(columnHeader, "10")); var relation = new Relation(); relation.AddRow(firstRow); relation.AddRow(secondRow); relation.AddRow(thirdRow); var aggregate = new AverageAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); var expectedCell = new Cell(new ColumnHeader("", ""), "12"); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(Convert.ToDouble(result), Is.EqualTo(Convert.ToDouble(expectedCell))); } [Test] public void Calculate_NullsPassed_ShouldReturnNull() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, null)); var secondRow = new Row(); secondRow.AddCell(new Cell(columnHeader, null)); var relation = new Relation(); relation.AddRow(firstRow); relation.AddRow(secondRow); var aggregate = new AverageAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(result.Value, Is.Null); } [Test] public void Calculate_EmptyRelation_ShouldReturnNull() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var relation = new Relation(); var aggregate = new AverageAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(result.Value, Is.Null); } [Test] [ExpectedException(typeof(InvalidCellTypeException))] public void Calculate_ColumnTypeNotDouble_ShouldThrowInvalidCellTypeException() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, "abc")); var relation = new Relation(); relation.AddRow(firstRow); var aggregate = new AverageAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(columnHeader)); // Act // ReSharper disable once UnusedVariable Cell result = aggregate.Calculate(relation); } [Test] public void Calculate_AliasPassed_ShouldReturnCellWithSetName() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, "13")); var relation = new Relation(); relation.AddRow(firstRow); var aggregate = new AverageAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", "avg")), "avg"); var expectedCell = new Cell(new ColumnHeader("", "avg"), "13"); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(Convert.ToDouble(result), Is.EqualTo(Convert.ToDouble(expectedCell))); } [Test] public void Calculate_ManyTimesCalled_ShouldReturnCorrectValueForEachRelation() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, "13")); var relation = new Relation(); relation.AddRow(firstRow); var aggregate = new AverageAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); var expectedCell = new Cell(new ColumnHeader("", ""), "13"); // Act Cell firstResult = aggregate.Calculate(relation); Cell secondResult = aggregate.Calculate(relation); // Assert Assert.That(Convert.ToDouble(firstResult), Is.EqualTo(Convert.ToDouble(expectedCell))); Assert.That(Convert.ToDouble(secondResult), Is.EqualTo(Convert.ToDouble(expectedCell))); } [Test] public void Calculate_ManyTimesCalled_ShouldReturnCorrectValueForEachInvocation() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRelation = new Relation(new[] { new Row(new[] { new Cell(columnHeader, "13") }) }); var secondRelation = new Relation(new[] { new Row(new[] { new Cell(columnHeader, "11") }) }); var thirdRelation = new Relation(new[] { new Row(new[] { new Cell(columnHeader, null) }) }); var aggregate = new AverageAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); var firstExpectedCell = new Cell(new ColumnHeader("", ""), "13"); var secondExpectedCell = new Cell(new ColumnHeader("", ""), "11"); var thirdExpectedCell = new Cell(new ColumnHeader("", ""), null); // Act Cell firstResult = aggregate.Calculate(firstRelation); Cell secondResult = aggregate.Calculate(secondRelation); Cell thirdResult = aggregate.Calculate(thirdRelation); // Assert Assert.That(Convert.ToDouble(firstResult), Is.EqualTo(Convert.ToDouble(firstExpectedCell))); Assert.That(Convert.ToDouble(secondResult), Is.EqualTo(Convert.ToDouble(secondExpectedCell))); Assert.That(thirdResult, Is.EqualTo(thirdExpectedCell)); } } } |
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using System; using Model; using NUnit.Framework; using QueryLogic.Aggregates; using QueryLogic.Exceptions; using QueryLogic.Expressions.CellExpressions; namespace QueryLogic.Test.Aggregates { internal class MaximumAggregateTests { [Test] public void Calculate_NotNullDoublesPassed_ShouldReturnMaximumDouble() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, "13")); var secondRow = new Row(); secondRow.AddCell(new Cell(columnHeader, "1")); var thirdRow = new Row(); thirdRow.AddCell(new Cell(columnHeader, "10")); var relation = new Relation(); relation.AddRow(firstRow); relation.AddRow(secondRow); relation.AddRow(thirdRow); var aggregate = new MaximumAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); var expectedCell = new Cell(new ColumnHeader("", ""), "13"); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(Convert.ToDouble(result), Is.EqualTo(Convert.ToDouble(expectedCell))); } [Test] public void Calculate_DoublesWithNullPassed_ShouldReturnMaximumDouble() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, null)); var secondRow = new Row(); secondRow.AddCell(new Cell(columnHeader, "1")); var thirdRow = new Row(); thirdRow.AddCell(new Cell(columnHeader, "10")); var relation = new Relation(); relation.AddRow(firstRow); relation.AddRow(secondRow); relation.AddRow(thirdRow); var aggregate = new MaximumAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); var expectedCell = new Cell(new ColumnHeader("", ""), "10"); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(Convert.ToDouble(result), Is.EqualTo(Convert.ToDouble(expectedCell))); } [Test] public void Calculate_NullsPassed_ShouldReturnNull() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, null)); var secondRow = new Row(); secondRow.AddCell(new Cell(columnHeader, null)); var relation = new Relation(); relation.AddRow(firstRow); relation.AddRow(secondRow); var aggregate = new MaximumAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(result.Value, Is.Null); } [Test] public void Calculate_NotNullDatesPassed_ShouldReturnMaximumDate() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, "2003-12-23")); var secondRow = new Row(); secondRow.AddCell(new Cell(columnHeader, "2003-12-21")); var thirdRow = new Row(); thirdRow.AddCell(new Cell(columnHeader, "2003-12-27")); var relation = new Relation(); relation.AddRow(firstRow); relation.AddRow(secondRow); relation.AddRow(thirdRow); var aggregate = new MaximumAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); var expectedCell = new Cell(new ColumnHeader("", ""), "2003-12-27"); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(Convert.ToDateTime(result), Is.EqualTo(Convert.ToDateTime(expectedCell))); } [Test] public void Calculate_DatesWithNullPassed_ShouldReturnMaximumDate() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, "2003-12-23")); var secondRow = new Row(); secondRow.AddCell(new Cell(columnHeader, null)); var thirdRow = new Row(); thirdRow.AddCell(new Cell(columnHeader, "2003-12-27")); var relation = new Relation(); relation.AddRow(firstRow); relation.AddRow(secondRow); relation.AddRow(thirdRow); var aggregate = new MaximumAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); var expectedCell = new Cell(new ColumnHeader("", ""), "2003-12-27"); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(Convert.ToDateTime(result), Is.EqualTo(Convert.ToDateTime(expectedCell))); } [Test] public void Calculate_EmptyRelation_ShouldReturnNull() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var relation = new Relation(); var aggregate = new MaximumAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(result.Value, Is.Null); } [Test] [ExpectedException(typeof(InvalidCellTypeException))] public void Calculate_ColumnTypeOtherThanDateTimeOrDouble_ShouldThrowInvalidCellTypeException() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, "abc")); var relation = new Relation(); relation.AddRow(firstRow); var aggregate = new MaximumAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); // Act // ReSharper disable once UnusedVariable Cell result = aggregate.Calculate(relation); } [Test] [ExpectedException(typeof(InvalidCellTypeException))] public void Calculate_CellsWithMixedColumnType_ShouldThrowInvalidCellTypeException() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, "123")); var secondRow = new Row(); secondRow.AddCell(new Cell(columnHeader, "2003-12-27")); var relation = new Relation(); relation.AddRow(firstRow); relation.AddRow(secondRow); var aggregate = new MaximumAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); // Act // ReSharper disable once UnusedVariable Cell result = aggregate.Calculate(relation); } [Test] public void Calculate_AliasPassed_ShouldReturnCellWithNameSet() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, "13")); var relation = new Relation(); relation.AddRow(firstRow); var aggregate = new MaximumAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", "max")), "max"); var expectedCell = new Cell(new ColumnHeader("", "max"), "13"); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(Convert.ToDouble(result), Is.EqualTo(Convert.ToDouble(expectedCell))); } [Test] public void Calculate_ManyTimesCalled_ShouldReturnCorrectValueForEachInvocation() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRelation = new Relation(new[] { new Row(new[] { new Cell(columnHeader, "13") }), new Row(new[] { new Cell(columnHeader, "12") }) }); var secondRelation = new Relation(new[] { new Row(new[] { new Cell(columnHeader, "11") }), new Row(new[] { new Cell(columnHeader, "12") }) }); var thirdRelation = new Relation(new[] { new Row(new[] { new Cell(columnHeader, null) }) }); var aggregate = new MaximumAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); var firstExpectedCell = new Cell(new ColumnHeader("", ""), "13"); var secondExpectedCell = new Cell(new ColumnHeader("", ""), "12"); var thirdExpectedCell = new Cell(new ColumnHeader("", ""), null); // Act Cell firstResult = aggregate.Calculate(firstRelation); Cell secondResult = aggregate.Calculate(secondRelation); Cell thirdResult = aggregate.Calculate(thirdRelation); // Assert Assert.That(Convert.ToDouble(firstResult), Is.EqualTo(Convert.ToDouble(firstExpectedCell))); Assert.That(Convert.ToDouble(secondResult), Is.EqualTo(Convert.ToDouble(secondExpectedCell))); Assert.That(thirdResult, Is.EqualTo(thirdExpectedCell)); } } } |
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using System; using Model; using NUnit.Framework; using QueryLogic.Aggregates; using QueryLogic.Exceptions; using QueryLogic.Expressions.CellExpressions; namespace QueryLogic.Test.Aggregates { internal class MinimumAggregateTests { [Test] public void Calculate_NotNullDoublesPassed_ShouldReturnMinimumDouble() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, "13")); var secondRow = new Row(); secondRow.AddCell(new Cell(columnHeader, "1")); var thirdRow = new Row(); thirdRow.AddCell(new Cell(columnHeader, "10")); var relation = new Relation(); relation.AddRow(firstRow); relation.AddRow(secondRow); relation.AddRow(thirdRow); var aggregate = new MinimumAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); var expectedCell = new Cell(new ColumnHeader("", ""), "1"); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(Convert.ToDouble(result), Is.EqualTo(Convert.ToDouble(expectedCell))); } [Test] public void Calculate_DoublesWithNullPassed_ShouldReturnMinimumDouble() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, null)); var secondRow = new Row(); secondRow.AddCell(new Cell(columnHeader, "1")); var thirdRow = new Row(); thirdRow.AddCell(new Cell(columnHeader, "10")); var relation = new Relation(); relation.AddRow(firstRow); relation.AddRow(secondRow); relation.AddRow(thirdRow); var aggregate = new MinimumAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); var expectedCell = new Cell(new ColumnHeader("", ""), "1"); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(Convert.ToDouble(result), Is.EqualTo(Convert.ToDouble(expectedCell))); } [Test] public void Calculate_NullsPassed_ShouldReturnNull() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, null)); var secondRow = new Row(); secondRow.AddCell(new Cell(columnHeader, null)); var relation = new Relation(); relation.AddRow(firstRow); relation.AddRow(secondRow); var aggregate = new MinimumAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(result.Value, Is.Null); } [Test] public void Calculate_NotNullDatesPassed_ShouldReturnMinimumDate() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, "2003-12-23")); var secondRow = new Row(); secondRow.AddCell(new Cell(columnHeader, "2003-12-21")); var thirdRow = new Row(); thirdRow.AddCell(new Cell(columnHeader, "2003-12-27")); var relation = new Relation(); relation.AddRow(firstRow); relation.AddRow(secondRow); relation.AddRow(thirdRow); var aggregate = new MinimumAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); var expectedCell = new Cell(new ColumnHeader("", ""), "2003-12-21"); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(Convert.ToDateTime(result), Is.EqualTo(Convert.ToDateTime(expectedCell))); } [Test] public void Calculate_DatesWithNullPassed_ShouldReturnMinimumDate() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, null)); var secondRow = new Row(); secondRow.AddCell(new Cell(columnHeader, "2003-12-21")); var thirdRow = new Row(); thirdRow.AddCell(new Cell(columnHeader, "2003-12-27")); var relation = new Relation(); relation.AddRow(firstRow); relation.AddRow(secondRow); relation.AddRow(thirdRow); var aggregate = new MinimumAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); var expectedCell = new Cell(new ColumnHeader("", ""), "2003-12-21"); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(Convert.ToDateTime(result), Is.EqualTo(Convert.ToDateTime(expectedCell))); } [Test] public void Calculate_EmptyRelation_ShouldReturnNull() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var relation = new Relation(); var aggregate = new MinimumAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(result.Value, Is.Null); } [Test] [ExpectedException(typeof(InvalidCellTypeException))] public void Calcluate_ColumnTypeDifferentThanDateTimeOrDouble_ShouldThrowInvalidCellTypeException() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, "abc")); var relation = new Relation(); relation.AddRow(firstRow); var aggregate = new MinimumAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); // Act // ReSharper disable once UnusedVariable Cell result = aggregate.Calculate(relation); } [Test] [ExpectedException(typeof(InvalidCellTypeException))] public void Calculate_CellsWithMixedColumnType_ShouldThrowInvalidCellTypeException() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, "123")); var secondRow = new Row(); secondRow.AddCell(new Cell(columnHeader, "2003-12-27")); var relation = new Relation(); relation.AddRow(firstRow); relation.AddRow(secondRow); var aggregate = new MinimumAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); // Act // ReSharper disable once UnusedVariable Cell result = aggregate.Calculate(relation); } [Test] public void Calculate_AliasPassed_ShouldReturnCellWithNameSet() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, "13")); var relation = new Relation(); relation.AddRow(firstRow); var aggregate = new MinimumAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", "min")), "min"); var expectedCell = new Cell(new ColumnHeader("", "min"), "13"); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(Convert.ToDouble(result), Is.EqualTo(Convert.ToDouble(expectedCell))); } [Test] public void Calculate_ManyTimesCalled_ShouldReturnCorrectValueForEachInvocation() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRelation = new Relation(new[] { new Row(new[] { new Cell(columnHeader, "13") }), new Row(new[] { new Cell(columnHeader, "12") }) }); var secondRelation = new Relation(new[] { new Row(new[] { new Cell(columnHeader, "13") }), new Row(new[] { new Cell(columnHeader, "14") }) }); var thirdRelation = new Relation(new[] { new Row(new[] { new Cell(columnHeader, null) }) }); var aggregate = new MinimumAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); var firstExpectedCell = new Cell(new ColumnHeader("", ""), "12"); var secondExpectedCell = new Cell(new ColumnHeader("", ""), "13"); var thirdExpectedCell = new Cell(new ColumnHeader("", ""), null); // Act Cell firstResult = aggregate.Calculate(firstRelation); Cell secondResult = aggregate.Calculate(secondRelation); Cell thirdResult = aggregate.Calculate(thirdRelation); // Assert Assert.That(Convert.ToDouble(firstResult), Is.EqualTo(Convert.ToDouble(firstExpectedCell))); Assert.That(Convert.ToDouble(secondResult), Is.EqualTo(Convert.ToDouble(secondExpectedCell))); Assert.That(thirdResult, Is.EqualTo(thirdExpectedCell)); } } } |
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using System; using Model; using NUnit.Framework; using QueryLogic.Aggregates; using QueryLogic.Exceptions; using QueryLogic.Expressions.CellExpressions; namespace QueryLogic.Test.Aggregates { internal class SumAggregateTests { [Test] public void Calculate_NotNullDoublesPassed_ShouldReturnSum() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, "13")); var secondRow = new Row(); secondRow.AddCell(new Cell(columnHeader, "1")); var thirdRow = new Row(); thirdRow.AddCell(new Cell(columnHeader, "10")); var relation = new Relation(); relation.AddRow(firstRow); relation.AddRow(secondRow); relation.AddRow(thirdRow); var aggregate = new SumAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); var expectedCell = new Cell(new ColumnHeader("", ""), "24"); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(Convert.ToDouble(result), Is.EqualTo(Convert.ToDouble(expectedCell))); } [Test] public void Calculate_DoublesAndNullPassed_ShouldReturnSum() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, null)); var secondRow = new Row(); secondRow.AddCell(new Cell(columnHeader, "1")); var thirdRow = new Row(); thirdRow.AddCell(new Cell(columnHeader, "10")); var relation = new Relation(); relation.AddRow(firstRow); relation.AddRow(secondRow); relation.AddRow(thirdRow); var aggregate = new SumAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); var expectedCell = new Cell(new ColumnHeader("", ""), "11"); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(Convert.ToDouble(result), Is.EqualTo(Convert.ToDouble(expectedCell))); } [Test] public void Calculate_NullsPassed_ShouldReturnNull() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, null)); var secondRow = new Row(); secondRow.AddCell(new Cell(columnHeader, null)); var relation = new Relation(); relation.AddRow(firstRow); relation.AddRow(secondRow); var aggregate = new SumAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(result.Value, Is.Null); } [Test] public void Calculate_EmptyRelation_ShouldReturnNull() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var relation = new Relation(); var aggregate = new SumAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(result.Value, Is.Null); } [Test] [ExpectedException(typeof(InvalidCellTypeException))] public void Calculate_TypeNotDouble_ShouldThrowInvalidCellTypeException() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, "abc")); var relation = new Relation(); relation.AddRow(firstRow); var aggregate = new SumAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); // Act // ReSharper disable once UnusedVariable Cell result = aggregate.Calculate(relation); } [Test] public void Calculate_AliasPassed_ShouldReturnCellWithNameSet() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, "13")); var relation = new Relation(); relation.AddRow(firstRow); var aggregate = new SumAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", "sum")), "sum"); var expectedCell = new Cell(new ColumnHeader("", "sum"), "13"); // Act Cell result = aggregate.Calculate(relation); // Assert Assert.That(Convert.ToDouble(result), Is.EqualTo(Convert.ToDouble(expectedCell))); } [Test] public void Calculate_ManyTimesCalled_ShouldReturnCorrectValueForEachInvocation() { // Arrange var columnHeader = new ColumnHeader("schema", "Column1"); var firstRow = new Row(); firstRow.AddCell(new Cell(columnHeader, "13")); var relation = new Relation(); relation.AddRow(firstRow); var aggregate = new SumAggregate(new GetOriginalCellCellExpression(columnHeader), new GetOriginalCellCellExpression(new ColumnHeader("", ""))); var expectedCell = new Cell(new ColumnHeader("", ""), "13"); // Act Cell firstResult = aggregate.Calculate(relation); Cell secondResult = aggregate.Calculate(relation); // Assert Assert.That(Convert.ToDouble(firstResult), Is.EqualTo(Convert.ToDouble(expectedCell))); Assert.That(Convert.ToDouble(secondResult), Is.EqualTo(Convert.ToDouble(expectedCell))); } } } |
That’s all. In the next part we will implement various functions for dates, strings, etc.