Michael Schimmel
284 lines
11 KiB
ObjectPascal
284 lines
11 KiB
ObjectPascal
unit TestDataTypes;
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interface
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uses
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DUnitX.TestFramework;
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type
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[TestFixture]
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TMyTestObject = class
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public
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[Test]
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procedure TestCreateRecords;
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[Test]
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procedure TestTuples;
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[Test]
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procedure TestArrays;
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[Test]
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procedure TestTexts;
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[Test]
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procedure TestTimestamps;
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end;
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implementation
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uses
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System.SysUtils,
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Myc.Data.Types;
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{ TMyTestObject }
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procedure TMyTestObject.TestCreateRecords;
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var
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intType: IDataType;
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floatType: IDataType;
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personType1, personType2, otherType: IDataRecordType;
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personValue: IDataValue;
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idValue: IDataOrdinalValue;
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floatValue: IDataFloatValue;
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begin
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// --- 1. Setup: Define base types and a record structure ---
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intType := TDataType.Ordinal;
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floatType := TDataType.Float;
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// --- 2. Test Type Creation and Caching ---
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personType1 := TDataType.RecordOf([TRecordField.Create('ID', intType), TRecordField.Create('Value', floatType)]);
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// Assertions for the created type
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Assert.IsNotNull(personType1, 'RecordType should be created');
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Assert.AreEqual(2, personType1.FieldCount, 'FieldCount should be 2');
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Assert.AreEqual('ID', personType1.Fields[0].Name, 'First field name should be ID');
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Assert.AreSame(intType, personType1.Fields[0].DataType, 'First field type should be Integer');
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Assert.AreEqual('Value', personType1.Fields[1].Name, 'Second field name should be Value');
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Assert.AreSame(floatType, personType1.Fields[1].DataType, 'Second field type should be Float');
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Assert.AreEqual(0, personType1.IndexOf('ID'), 'IndexOf ID should be 0');
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Assert.AreEqual(1, personType1.IndexOf('Value'), 'IndexOf Value should be 1');
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Assert.AreEqual('Record<ID: Integer, Value: Float>', personType1.Name, 'Type name should match expected format');
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// Test if the same definition returns the same cached instance
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personType2 := TDataType.RecordOf([TRecordField.Create('ID', intType), TRecordField.Create('Value', floatType)]);
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Assert.AreSame(personType1, personType2, 'Types should be cached and return the same instance');
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// Test if a different definition returns a new instance
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otherType := TDataType.RecordOf([TRecordField.Create('ID', intType), TRecordField.Create('Data', floatType)]);
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Assert.AreNotSame(personType1, otherType, 'Different definitions should result in different types');
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// --- 3. Test Value Creation and Access ---
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personValue := personType1.CreateValue([TDataValue.FromOrdinal(123), TDataValue.FromFloat(45.67)]);
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Assert.IsNotNull(TDataValue(personValue).AsRecord, 'RecordValue should be created');
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Assert.AreSame(personType1, TDataValue(personValue).DataType, 'Value should have the correct data type');
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// Access by index
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idValue := TDataValue(TDataValue(personValue).AsRecord.Items[0]).AsOrdinal;
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Assert.AreEqual(Int64(123), idValue.Value, 'Value at index 0 is incorrect');
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floatValue := TDataValue(TDataValue(personValue).AsRecord.Items[1]).AsFloat;
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Assert.AreEqual(45.67, floatValue.Value, 'Value at index 1 is incorrect');
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// Access by name
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floatValue := TDataValue(TDataValue(personValue).AsRecord.Items[personType1.IndexOf('Value')]).AsFloat;
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Assert.AreEqual(45.67, floatValue.Value, 'Value accessed by name is incorrect');
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// --- 4. Test Validation and Error Handling ---
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// Test for duplicate field names during type creation
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Assert.WillRaise(
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procedure begin TDataType.RecordOf([TRecordField.Create('ID', intType), TRecordField.Create('ID', floatType)]); end,
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EArgumentException,
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'Duplicate field names should raise an exception'
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);
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// Test for wrong number of items during value creation
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Assert.WillRaise(
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procedure begin personType1.CreateValue([TDataValue.FromOrdinal(99)]); end,
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EArgumentException,
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'Wrong number of items should raise exception'
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);
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// Test for wrong item type during value creation
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Assert.WillRaise(
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procedure
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begin
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// Passing Float instead of Integer for the first item
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personType1.CreateValue([TDataValue.FromFloat(1.0), TDataValue.FromFloat(2.0)]);
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end,
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EArgumentException,
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'Wrong item type should raise exception'
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);
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end;
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procedure TMyTestObject.TestTuples;
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var
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intValue: IDataValue;
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floatValue: IDataValue;
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tuple1, tuple2, tuple3: IDataTupleValue;
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type1, type2, type3: IDataType;
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begin
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// --- 1. Setup: Create some values ---
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intValue := TDataValue.FromOrdinal(123);
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floatValue := TDataValue.FromFloat(45.67);
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// --- 2. Test Value Creation and basic properties ---
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tuple1 := TDataValue.FromTuple([intValue, floatValue]);
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Assert.IsNotNull(tuple1, 'Tuple value should be created');
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Assert.AreEqual(2, TDataValue(tuple1).AsTuple.ItemCount, 'ItemCount should be on the value');
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Assert.AreSame(intValue, TDataValue(tuple1).AsTuple.Items[0], 'Item at index 0 is incorrect');
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Assert.AreSame(floatValue, TDataValue(tuple1).AsTuple.Items[1], 'Item at index 1 is incorrect');
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// --- 3. Test Singleton Type Behavior ---
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// Create more tuples with different structures
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tuple2 := TDataValue.FromTuple([TDataValue.FromOrdinal(99), TDataValue.FromFloat(1.1)]);
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tuple3 := TDataValue.FromTuple([intValue]);
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// Access the DataType via the underlying interface
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type1 := tuple1.DataType;
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type2 := tuple2.DataType;
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type3 := tuple3.DataType;
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Assert.IsNotNull(type1, 'DataType interface should be accessible');
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Assert.AreEqual('Tuple', type1.Name, 'The type name for all tuples should be Tuple');
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// The core test: All tuples, regardless of their content, must share the exact same singleton type object.
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Assert.AreSame(type1, type2, 'All tuple types should be the same singleton instance');
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Assert.AreSame(type1, type3, 'All tuple types should be the same singleton instance');
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end;
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procedure TMyTestObject.TestArrays;
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var
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intType: IDataType;
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floatType: IDataType;
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intArrayType1, intArrayType2, floatArrayType: IDataArrayType;
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arrayValue: IDataArrayValue;
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v1, v2: IDataValue;
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begin
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// --- 1. Setup ---
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intType := TDataType.Ordinal;
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floatType := TDataType.Float;
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// --- 2. Test Type Creation and Caching ---
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intArrayType1 := TDataType.ArrayOfType(intType);
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Assert.IsNotNull(intArrayType1, 'ArrayType should be created');
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Assert.AreSame(intType, intArrayType1.ElementType, 'ElementType should be Integer');
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Assert.AreEqual('Array<Integer>', intArrayType1.Name, 'Type name should be Array<Integer>');
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// Test caching
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intArrayType2 := TDataType.ArrayOfType(intType);
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Assert.AreSame(intArrayType1, intArrayType2, 'Array types should be cached');
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// Test uniqueness
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floatArrayType := TDataType.ArrayOfType(floatType);
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Assert.AreNotSame(intArrayType1, floatArrayType, 'Different element types should result in different array types');
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Assert.AreEqual('Array<Float>', floatArrayType.Name, 'Type name should be Array<Float>');
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// --- 3. Test Value Creation and Access ---
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v1 := TDataValue.FromOrdinal(10);
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v2 := TDataValue.FromOrdinal(20);
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arrayValue := intArrayType1.CreateValue([v1, v2]);
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Assert.IsNotNull(arrayValue, 'ArrayValue should be created');
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Assert.AreEqual(2, TDataValue(arrayValue).AsArray.ElementCount, 'ElementCount should be 2');
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// Access items and check values
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Assert.AreEqual(Int64(10), TDataValue(TDataValue(arrayValue).AsArray.Items[0]).AsOrdinal.Value, 'Item at index 0 is incorrect');
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Assert.AreEqual(Int64(20), TDataValue(TDataValue(arrayValue).AsArray.Items[1]).AsOrdinal.Value, 'Item at index 1 is incorrect');
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// --- 4. Test Validation and Error Handling ---
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// Test creating an array with a nil element type
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Assert.WillRaise(procedure begin TDataType.ArrayOfType(nil); end, EArgumentException, 'Nil element type should raise an exception');
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// Test creating a value with an incorrect element type (homogeneity check)
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Assert.WillRaise(
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procedure
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begin
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// Try to add a float value to an Array<Integer>
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intArrayType1.CreateValue([v1, TDataValue.FromFloat(3.14)]);
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end,
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EArgumentException,
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'Wrong element type should raise an exception'
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);
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end;
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procedure TMyTestObject.TestTexts;
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var
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textType: IDataTextType;
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textValue1, textValue2: IDataTextValue;
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dataValue: IDataValue;
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begin
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// --- 1. Test Type Creation ---
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textType := TDataType.Text;
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Assert.IsNotNull(textType, 'TextType should be created');
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Assert.AreEqual('Text', textType.Name, 'Type name should be Text');
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Assert.AreEqual(dkText, textType.Kind, 'Type kind should be dkText');
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// --- 2. Test Value Creation and Access ---
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textValue1 := TDataValue.FromText('Hello World');
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Assert.IsNotNull(textValue1, 'TextValue should be created');
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Assert.AreSame(textType, textValue1.DataType, 'Value should have the correct data type');
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Assert.AreEqual('Hello World', textValue1.Value, 'Value should be ''Hello World''');
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// Test another text value
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textValue2 := TDataValue.FromText('Delphi');
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Assert.AreEqual('Delphi', textValue2.Value, 'Value should be ''Delphi''');
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// --- 3. Test AsText casting ---
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dataValue := TDataValue.FromText('Test Text');
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Assert.AreEqual('Test Text', TDataValue(dataValue).AsText.Value, 'AsText should return correct value');
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// Test invalid cast
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dataValue := TDataValue.FromOrdinal(123);
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Assert
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.WillRaise(procedure begin TDataValue(dataValue).AsText; end, EInvalidCast, 'Casting non-text to AsText should raise EInvalidCast');
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end;
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procedure TMyTestObject.TestTimestamps;
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var
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tsType: IDataTimestampType;
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tsValue1, tsValue2: IDataTimestampValue;
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dataValue: IDataValue;
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now: TDateTime;
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begin
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// --- 1. Test Type Creation ---
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tsType := TDataType.Timestamp;
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Assert.IsNotNull(tsType, 'TimestampType should be created');
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Assert.AreEqual('Timestamp', tsType.Name, 'Type name should be Timestamp');
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Assert.AreEqual(dkTimestamp, tsType.Kind, 'Type kind should be dkTimestamp');
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// --- 2. Test Value Creation and Access ---
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now := Now;
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tsValue1 := TDataValue.FromTimestamp(now);
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Assert.IsNotNull(tsValue1, 'TimestampValue should be created');
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Assert.AreSame(tsType, tsValue1.DataType, 'Value should have the correct data type');
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Assert.AreEqual(now, tsValue1.Value, 'Value should be the same');
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// Test another text value
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tsValue2 := TDataValue.FromTimestamp(Date);
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Assert.AreEqual(Date, tsValue2.Value, 'Value should be the same');
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// --- 3. Test AsTimestamp casting ---
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dataValue := TDataValue.FromTimestamp(now);
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Assert.AreEqual(now, TDataValue(dataValue).AsTimestamp.Value, 'AsTimestamp should return correct value');
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// Test invalid cast
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dataValue := TDataValue.FromOrdinal(123);
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Assert.WillRaise(
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procedure begin TDataValue(dataValue).AsTimestamp; end,
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EInvalidCast,
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'Casting non-timestamp to AsTimestamp should raise EInvalidCast'
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);
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end;
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initialization
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TDUnitX.RegisterTestFixture(TMyTestObject);
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end.
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