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unit Quick.Core.AutoMapper.Tests;
interface
uses
DUnitX.TestFramework,
System.Generics.Collections,
System.Rtti,
System.SysUtils,
Quick.Core.AutoMapper,
Quick.Core.Mapping.Abstractions;
type
{$M+}
TAmDbUser = class
private
FId: Integer;
FName: string;
published
property Id: Integer read FId write FId;
property Name: string read FName write FName;
end;
TAmUser = class
private
FId: Integer;
FName: string;
published
property Id: Integer read FId write FId;
property Name: string read FName write FName;
end;
TAmDelegateSource = class
private
FFirstName: string;
FLastName: string;
published
property FirstName: string read FFirstName write FFirstName;
property LastName: string read FLastName write FLastName;
end;
TAmDelegateTarget = class
private
FFullName: string;
published
property FullName: string read FFullName write FFullName;
end;
TAmRenameSource = class
private
FFullName: string;
FAge: Integer;
published
property FullName: string read FFullName write FFullName;
property Age: Integer read FAge write FAge;
end;
TAmRenameTarget = class
private
FName: string;
FAge: Integer;
published
property Name: string read FName write FName;
property Age: Integer read FAge write FAge;
end;
TAmExplicitSource = class
private
FFullName: string;
FAge: Integer;
published
property FullName: string read FFullName write FFullName;
property Age: Integer read FAge write FAge;
end;
TAmExplicitTarget = class
private
FName: string;
FAge: Integer;
published
property Name: string read FName write FName;
property Age: Integer read FAge write FAge;
end;
TAmIgnoreMissingSource = class
private
FId: Integer;
published
property Id: Integer read FId write FId;
end;
TAmIgnoreMissingTarget = class
private
FId: Integer;
FName: string;
published
property Id: Integer read FId write FId;
property Name: string read FName write FName;
end;
TAmAddressEntity = class
private
FCity: string;
FCountry: string;
published
property City: string read FCity write FCity;
property Country: string read FCountry write FCountry;
end;
TAmAddressDto = class
private
FCity: string;
FCountry: string;
published
property City: string read FCity write FCity;
property Country: string read FCountry write FCountry;
end;
TAmCustomerEntity = class
private
FName: string;
FAddress: TAmAddressEntity;
public
constructor Create;
destructor Destroy; override;
published
property Name: string read FName write FName;
property Address: TAmAddressEntity read FAddress write FAddress;
end;
TAmCustomerDto = class
private
FName: string;
FAddress: TAmAddressDto;
public
constructor Create;
destructor Destroy; override;
published
property Name: string read FName write FName;
property Address: TAmAddressDto read FAddress write FAddress;
end;
TAmListSource = class
private
FUsers: TObjectList<TAmDbUser>;
public
constructor Create;
destructor Destroy; override;
published
property Users: TObjectList<TAmDbUser> read FUsers write FUsers;
end;
TAmListTarget = class
private
FUsers: TObjectList<TAmUser>;
public
constructor Create;
destructor Destroy; override;
published
property Users: TObjectList<TAmUser> read FUsers write FUsers;
end;
TAmUnmappedSource = class
private
FCode: Integer;
FTitle: string;
published
property Code: Integer read FCode write FCode;
property Title: string read FTitle write FTitle;
end;
TAmUnmappedTarget = class
private
FCode: Integer;
FTitle: string;
published
property Code: Integer read FCode write FCode;
property Title: string read FTitle write FTitle;
end;
{ ---- Advanced-tests types (T-AM-11..17) ---- }
TAmProdSrc = class
private
FId: Integer;
FName: string;
published
property Id: Integer read FId write FId;
property Name: string read FName write FName;
end;
TAmProdDst = class
private
FId: Integer;
FName: string;
published
property Id: Integer read FId write FId;
property Name: string read FName write FName;
end;
TAmCondSrc = class
private
FTag: string;
FScore: Integer;
published
property Tag: string read FTag write FTag;
property Score: Integer read FScore write FScore;
end;
TAmCondDst = class
private
FTag: string;
FScore: Integer;
published
property Tag: string read FTag write FTag;
property Score: Integer read FScore write FScore;
end;
TAmConvSrc = class
private
FPoints: Integer;
published
property Points: Integer read FPoints write FPoints;
end;
TAmConvDst = class
private
FPoints: Integer;
published
property Points: Integer read FPoints write FPoints;
end;
TAmHookSrc = class
private
FName: string;
published
property Name: string read FName write FName;
end;
TAmHookDst = class
private
FName: string;
published
property Name: string read FName write FName;
end;
TAmCtxSrc = class
private
FValue: Integer;
FTag: string;
published
property Value: Integer read FValue write FValue;
property Tag: string read FTag write FTag;
end;
TAmCtxDst = class
private
FValue: Integer;
FTag: string;
published
property Value: Integer read FValue write FValue;
property Tag: string read FTag write FTag;
end;
{$M-}
TAdvancedAutoMapperProfile = class(TProfile)
public
constructor Create; override;
end;
TQuickCoreAutoMapperProfile = class(TProfile)
public
constructor Create; override;
end;
[TestFixture]
TQuickCoreAutoMapperTests = class
private
class var FProfileRegistered: Boolean;
class procedure EnsureProfile;
function CreateMapper: TAutoMapper;
public
[Test]
procedure T_AM_01_Map_Same_Name_Properties;
[Test]
procedure T_AM_02_Map_With_Delegate;
[Test]
procedure T_AM_03_ForMember_Renaming;
[Test]
procedure T_AM_04_IgnoreOtherMembers;
[Test]
procedure T_AM_05_IgnoreAllNonExisting;
[Test]
procedure T_AM_06_Map_List_Of_Objects;
[Test]
procedure T_AM_07_Map_Nested_Object;
[Test]
procedure T_AM_08_Map_Returns_New_Instance;
[Test]
procedure T_AM_09_Map_To_Existing_Instance;
[Test]
procedure T_AM_10_ResolveUnmapped;
end;
[TestFixture]
TQuickCoreAutoMapperAdvancedTests = class
private
class var FAdvancedProfileRegistered: Boolean;
class procedure EnsureAdvancedProfile;
function CreateAdvancedMapper: TAutoMapper;
public
[Test]
procedure T_AM_11_ReverseMap;
[Test]
procedure T_AM_12_Condition_Skips_When_False;
[Test]
procedure T_AM_13_ConvertUsing_Transforms_Value;
[Test]
procedure T_AM_14_BeforeMap_Is_Called;
[Test]
procedure T_AM_15_AfterMap_Modifies_Destination;
[Test]
procedure T_AM_16_AssertConfigurationIsValid_Does_Not_Raise;
[Test]
procedure T_AM_17_Map_With_Context;
end;
implementation
{ TAmCustomerEntity }
constructor TAmCustomerEntity.Create;
begin
inherited Create;
FAddress := TAmAddressEntity.Create;
end;
destructor TAmCustomerEntity.Destroy;
begin
FAddress.Free;
inherited;
end;
{ TAmCustomerDto }
constructor TAmCustomerDto.Create;
begin
inherited Create;
FAddress := TAmAddressDto.Create;
end;
destructor TAmCustomerDto.Destroy;
begin
FAddress.Free;
inherited;
end;
{ TAmListSource }
constructor TAmListSource.Create;
begin
inherited Create;
FUsers := TObjectList<TAmDbUser>.Create(True);
end;
destructor TAmListSource.Destroy;
begin
FUsers.Free;
inherited;
end;
{ TAmListTarget }
constructor TAmListTarget.Create;
begin
inherited Create;
FUsers := TObjectList<TAmUser>.Create(True);
end;
destructor TAmListTarget.Destroy;
begin
FUsers.Free;
inherited;
end;
{ TQuickCoreAutoMapperProfile }
constructor TQuickCoreAutoMapperProfile.Create;
begin
inherited Create;
ResolveUnmapped;
CreateMap<TAmDbUser, TAmUser>;
CreateMap<TAmDelegateSource, TAmDelegateTarget>(
procedure(src: TAmDelegateSource; dest: TAmDelegateTarget)
begin
dest.FullName := Trim(src.FirstName + ' ' + src.LastName);
end);
CreateMap<TAmRenameSource, TAmRenameTarget>
.ForMember('FullName', 'Name');
CreateMap<TAmExplicitSource, TAmExplicitTarget>
.ForMember('FullName', 'Name')
.IgnoreOtherMembers;
CreateMap<TAmIgnoreMissingSource, TAmIgnoreMissingTarget>
.ForMember('MissingField', 'Name')
.IgnoreAllNonExisting;
CreateMap<TAmAddressEntity, TAmAddressDto>;
CreateMap<TAmCustomerEntity, TAmCustomerDto>;
CreateMap<TAmListSource, TAmListTarget>;
end;
{ TQuickCoreAutoMapperTests }
class procedure TQuickCoreAutoMapperTests.EnsureProfile;
begin
if FProfileRegistered then
Exit;
TAutoMapper.RegisterProfile<TQuickCoreAutoMapperProfile>;
FProfileRegistered := True;
end;
function TQuickCoreAutoMapperTests.CreateMapper: TAutoMapper;
begin
EnsureProfile;
Result := TAutoMapper.Create;
end;
procedure TQuickCoreAutoMapperTests.T_AM_01_Map_Same_Name_Properties;
var
mapper: TAutoMapper;
source: TAmDbUser;
target: TAmUser;
begin
mapper := CreateMapper;
source := TAmDbUser.Create;
try
source.Id := 10;
source.Name := 'Ada';
target := mapper.Map<TAmUser>(source);
try
Assert.AreEqual(10, target.Id);
Assert.AreEqual('Ada', target.Name);
finally
target.Free;
end;
finally
source.Free;
mapper.Free;
end;
end;
procedure TQuickCoreAutoMapperTests.T_AM_02_Map_With_Delegate;
var
mapper: TAutoMapper;
source: TAmDelegateSource;
target: TAmDelegateTarget;
begin
mapper := CreateMapper;
source := TAmDelegateSource.Create;
try
source.FirstName := 'Grace';
source.LastName := 'Hopper';
target := mapper.Map<TAmDelegateTarget>(source);
try
Assert.AreEqual('Grace Hopper', target.FullName);
finally
target.Free;
end;
finally
source.Free;
mapper.Free;
end;
end;
procedure TQuickCoreAutoMapperTests.T_AM_03_ForMember_Renaming;
var
mapper: TAutoMapper;
source: TAmRenameSource;
target: TAmRenameTarget;
begin
mapper := CreateMapper;
source := TAmRenameSource.Create;
try
source.FullName := 'Linus Torvalds';
source.Age := 55;
target := mapper.Map<TAmRenameTarget>(source);
try
Assert.AreEqual('Linus Torvalds', target.Name);
Assert.AreEqual(55, target.Age);
finally
target.Free;
end;
finally
source.Free;
mapper.Free;
end;
end;
procedure TQuickCoreAutoMapperTests.T_AM_04_IgnoreOtherMembers;
var
mapper: TAutoMapper;
source: TAmExplicitSource;
target: TAmExplicitTarget;
begin
mapper := CreateMapper;
source := TAmExplicitSource.Create;
try
source.FullName := 'Margaret Hamilton';
source.Age := 37;
target := mapper.Map<TAmExplicitTarget>(source);
try
Assert.AreEqual('Margaret Hamilton', target.Name);
Assert.AreEqual(0, target.Age);
finally
target.Free;
end;
finally
source.Free;
mapper.Free;
end;
end;
procedure TQuickCoreAutoMapperTests.T_AM_05_IgnoreAllNonExisting;
var
mapper: TAutoMapper;
source: TAmIgnoreMissingSource;
target: TAmIgnoreMissingTarget;
begin
mapper := CreateMapper;
source := TAmIgnoreMissingSource.Create;
try
source.Id := 88;
Assert.WillNotRaise(
procedure
begin
target := mapper.Map<TAmIgnoreMissingTarget>(source);
end,
nil);
try
Assert.AreEqual(88, target.Id);
Assert.AreEqual('', target.Name);
finally
target.Free;
end;
finally
source.Free;
mapper.Free;
end;
end;
procedure TQuickCoreAutoMapperTests.T_AM_06_Map_List_Of_Objects;
var
mapper: TAutoMapper;
source: TAmListSource;
srcUser: TAmDbUser;
target: TAmListTarget;
begin
mapper := CreateMapper;
source := TAmListSource.Create;
try
srcUser := TAmDbUser.Create;
srcUser.Id := 1;
srcUser.Name := 'User One';
source.Users.Add(srcUser);
srcUser := TAmDbUser.Create;
srcUser.Id := 2;
srcUser.Name := 'User Two';
source.Users.Add(srcUser);
target := mapper.Map<TAmListTarget>(source);
try
Assert.AreEqual(NativeInt(2), target.Users.Count);
Assert.AreEqual('User One', target.Users[0].Name);
Assert.AreEqual(2, target.Users[1].Id);
finally
target.Free;
end;
finally
source.Free;
mapper.Free;
end;
end;
procedure TQuickCoreAutoMapperTests.T_AM_07_Map_Nested_Object;
var
mapper: TAutoMapper;
source: TAmCustomerEntity;
target: TAmCustomerDto;
begin
mapper := CreateMapper;
source := TAmCustomerEntity.Create;
try
source.Name := 'Nested User';
source.Address.City := 'Madrid';
source.Address.Country := 'Spain';
target := mapper.Map<TAmCustomerDto>(source);
try
Assert.AreEqual('Nested User', target.Name);
Assert.IsNotNull(target.Address);
Assert.AreEqual('Madrid', target.Address.City);
Assert.AreEqual('Spain', target.Address.Country);
finally
target.Free;
end;
finally
source.Free;
mapper.Free;
end;
end;
procedure TQuickCoreAutoMapperTests.T_AM_08_Map_Returns_New_Instance;
var
mapper: TAutoMapper;
source: TAmDbUser;
target: TAmUser;
begin
mapper := CreateMapper;
source := TAmDbUser.Create;
try
source.Id := 5;
source.Name := 'New Instance';
target := mapper.Map<TAmUser>(source);
try
Assert.AreNotSame(source, target);
Assert.AreEqual(5, target.Id);
finally
target.Free;
end;
finally
source.Free;
mapper.Free;
end;
end;
procedure TQuickCoreAutoMapperTests.T_AM_09_Map_To_Existing_Instance;
var
mapper: TAutoMapper;
source: TAmDbUser;
target: TAmUser;
begin
mapper := CreateMapper;
source := TAmDbUser.Create;
target := TAmUser.Create;
try
source.Id := 15;
source.Name := 'Overwrite';
target.Id := -1;
target.Name := 'Old';
mapper.Map(source, target);
Assert.AreEqual(15, target.Id);
Assert.AreEqual('Overwrite', target.Name);
finally
target.Free;
source.Free;
mapper.Free;
end;
end;
procedure TQuickCoreAutoMapperTests.T_AM_10_ResolveUnmapped;
var
mapper: TAutoMapper;
source: TAmUnmappedSource;
target: TAmUnmappedTarget;
begin
mapper := CreateMapper;
source := TAmUnmappedSource.Create;
try
source.Code := 404;
source.Title := 'Unmapped but compatible';
target := mapper.Map<TAmUnmappedTarget>(source);
try
Assert.AreEqual(404, target.Code);
Assert.AreEqual('Unmapped but compatible', target.Title);
finally
target.Free;
end;
finally
source.Free;
mapper.Free;
end;
end;
{ --- Advanced AutoMapper tests (T-AM-11..17) --- }
var
GAmBeforeMapCalled: Boolean = False;
GAmAfterMapTag: string = '';
{ TAdvancedAutoMapperProfile }
constructor TAdvancedAutoMapperProfile.Create;
begin
inherited Create;
// T-AM-11: ReverseMap — registers both TAmProdSrc→TAmProdDst and the inverse
CreateMap<TAmProdSrc, TAmProdDst>.ReverseMap;
// T-AM-12: Condition — skip copying Score when it is negative
CreateMap<TAmCondSrc, TAmCondDst>
.Condition('Score',
function(src: TObject): Boolean
begin
Result := TAmCondSrc(src).Score >= 0;
end);
// T-AM-13: ConvertUsing — double the Points value
CreateMap<TAmConvSrc, TAmConvDst>
.ConvertUsing('Points',
function(const v: TValue): TValue
begin
Result := TValue.From<Integer>(v.AsInteger * 2);
end);
// T-AM-14 / T-AM-15: BeforeMap + AfterMap hooks
CreateMap<TAmHookSrc, TAmHookDst>
.BeforeMap(
procedure(s, d: TObject)
begin
GAmBeforeMapCalled := True;
end)
.AfterMap(
procedure(s, d: TObject)
begin
GAmAfterMapTag := TAmHookDst(d).Name + '_done';
end);
// T-AM-17: Map with context — delegate reads TAutoMapper.CurrentContext
CreateMap<TAmCtxSrc, TAmCtxDst>(
procedure(src: TAmCtxSrc; dst: TAmCtxDst)
var
ctx: TMapContext;
begin
dst.Value := src.Value;
ctx := TAutoMapper.CurrentContext;
if Assigned(ctx) and ctx.Items.ContainsKey('prefix') then
dst.Tag := ctx.Items['prefix'].AsString + IntToStr(src.Value)
else
dst.Tag := IntToStr(src.Value);
end)
.IgnoreOtherMembers;
end;
{ TQuickCoreAutoMapperAdvancedTests }
class procedure TQuickCoreAutoMapperAdvancedTests.EnsureAdvancedProfile;
begin
if FAdvancedProfileRegistered then
Exit;
TAutoMapper.RegisterProfile<TAdvancedAutoMapperProfile>;
FAdvancedProfileRegistered := True;
end;
function TQuickCoreAutoMapperAdvancedTests.CreateAdvancedMapper: TAutoMapper;
begin
EnsureAdvancedProfile;
Result := TAutoMapper.Create;
end;
procedure TQuickCoreAutoMapperAdvancedTests.T_AM_11_ReverseMap;
var
mapper: TAutoMapper;
src: TAmProdSrc;
dst: TAmProdDst;
rev: TAmProdSrc;
begin
mapper := CreateAdvancedMapper;
// Forward: TAmProdSrc → TAmProdDst
src := TAmProdSrc.Create;
try
src.Id := 7;
src.Name := 'Widget';
dst := mapper.Map<TAmProdDst>(src);
try
Assert.AreEqual(7, dst.Id);
Assert.AreEqual('Widget', dst.Name);
finally
dst.Free;
end;
finally
src.Free;
end;
// Reverse: TAmProdDst → TAmProdSrc (registered by ReverseMap)
dst := TAmProdDst.Create;
try
dst.Id := 99;
dst.Name := 'Gadget';
rev := mapper.Map<TAmProdSrc>(dst);
try
Assert.AreEqual(99, rev.Id);
Assert.AreEqual('Gadget', rev.Name);
finally
rev.Free;
end;
finally
dst.Free;
mapper.Free;
end;
end;
procedure TQuickCoreAutoMapperAdvancedTests.T_AM_12_Condition_Skips_When_False;
var
mapper: TAutoMapper;
src: TAmCondSrc;
dst: TAmCondDst;
begin
mapper := CreateAdvancedMapper;
src := TAmCondSrc.Create;
try
src.Tag := 'test';
src.Score := -5; // negative → Condition returns False → Score not copied
dst := mapper.Map<TAmCondDst>(src);
try
Assert.AreEqual('test', dst.Tag);
Assert.AreEqual(0, dst.Score, 'Score must not be copied when Condition returns False');
finally
dst.Free;
end;
// Positive score: Condition returns True → Score IS copied
src.Score := 42;
dst := mapper.Map<TAmCondDst>(src);
try
Assert.AreEqual(42, dst.Score, 'Score must be copied when Condition returns True');
finally
dst.Free;
end;
finally
src.Free;
mapper.Free;
end;
end;
procedure TQuickCoreAutoMapperAdvancedTests.T_AM_13_ConvertUsing_Transforms_Value;
var
mapper: TAutoMapper;
src: TAmConvSrc;
dst: TAmConvDst;
begin
mapper := CreateAdvancedMapper;
src := TAmConvSrc.Create;
try
src.Points := 7;
dst := mapper.Map<TAmConvDst>(src);
try
Assert.AreEqual(14, dst.Points, 'ConvertUsing must double the Points value');
finally
dst.Free;
end;
finally
src.Free;
mapper.Free;
end;
end;
procedure TQuickCoreAutoMapperAdvancedTests.T_AM_14_BeforeMap_Is_Called;
var
mapper: TAutoMapper;
src: TAmHookSrc;
dst: TAmHookDst;
begin
GAmBeforeMapCalled := False;
mapper := CreateAdvancedMapper;
src := TAmHookSrc.Create;
try
src.Name := 'alpha';
dst := mapper.Map<TAmHookDst>(src);
try
Assert.IsTrue(GAmBeforeMapCalled, 'BeforeMap hook must have been invoked');
finally
dst.Free;
end;
finally
src.Free;
mapper.Free;
end;
end;
procedure TQuickCoreAutoMapperAdvancedTests.T_AM_15_AfterMap_Modifies_Destination;
var
mapper: TAutoMapper;
src: TAmHookSrc;
dst: TAmHookDst;
begin
GAmAfterMapTag := '';
mapper := CreateAdvancedMapper;
src := TAmHookSrc.Create;
try
src.Name := 'beta';
dst := mapper.Map<TAmHookDst>(src);
try
Assert.AreEqual('beta_done', GAmAfterMapTag,
'AfterMap hook must set GAmAfterMapTag = Name + "_done"');
finally
dst.Free;
end;
finally
src.Free;
mapper.Free;
end;
end;
procedure TQuickCoreAutoMapperAdvancedTests.T_AM_16_AssertConfigurationIsValid_Does_Not_Raise;
var
mapper: TAutoMapper;
begin
mapper := CreateAdvancedMapper;
try
Assert.WillNotRaise(
procedure
begin
mapper.AssertConfigurationIsValid;
end,
nil,
'All registered mappings have matching properties; AssertConfigurationIsValid must not raise');
finally
mapper.Free;
end;
end;
procedure TQuickCoreAutoMapperAdvancedTests.T_AM_17_Map_With_Context;
var
mapper: TAutoMapper;
src: TAmCtxSrc;
dst: TAmCtxDst;
configProc: TMapOptionsProc;
begin
mapper := CreateAdvancedMapper;
src := TAmCtxSrc.Create;
try
src.Value := 42;
src.Tag := 'ignored';
// Map without context: Tag = '42'
dst := mapper.Map<TAmCtxDst>(src);
try
Assert.AreEqual(42, dst.Value);
Assert.AreEqual('42', dst.Tag, 'Without context, Tag must equal Value.ToString');
finally
dst.Free;
end;
// Map with context: Tag = prefix + '42'
configProc := procedure(ctx: TMapContext)
begin
ctx.Items.AddOrSetValue('prefix', TValue.From<string>('X_'));
end;
dst := mapper.Map(src, configProc).AsType<TAmCtxDst>;
try
Assert.AreEqual(42, dst.Value);
Assert.AreEqual('X_42', dst.Tag,
'With context prefix "X_", Tag must be "X_42"');
finally
dst.Free;
end;
finally
src.Free;
mapper.Free;
end;
end;
initialization
TDUnitX.RegisterTestFixture(TQuickCoreAutoMapperTests);
TDUnitX.RegisterTestFixture(TQuickCoreAutoMapperAdvancedTests);
end.