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DUnitX.Assert.pas
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{***************************************************************************}
{ }
{ DUnitX }
{ }
{ Copyright (C) 2017 Vincent Parrett & Contributors }
{ }
{ http://www.finalbuilder.com }
{ }
{ }
{***************************************************************************}
{ }
{ Licensed under the Apache License, Version 2.0 (the "License"); }
{ you may not use this file except in compliance with the License. }
{ You may obtain a copy of the License at }
{ }
{ http://www.apache.org/licenses/LICENSE-2.0 }
{ }
{ Unless required by applicable law or agreed to in writing, software }
{ distributed under the License is distributed on an "AS IS" BASIS, }
{ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. }
{ See the License for the specific language governing permissions and }
{ limitations under the License. }
{ }
{***************************************************************************}
unit DUnitX.Assert;
// This unit should ONLY contain Assert commands and mechanisms that are
// not directly tied to DUnitX to keep the file neutral and usable in other
// test frameworks such as DUnit. DUnitX specific implementations should be
// implemented in DUnitX.Assert.Ex.pas
interface
{$I DUnitX.inc}
uses
{$IFDEF USE_NS}
System.Classes,
System.SysUtils;
{$ELSE}
Classes,
SysUtils;
{$ENDIF}
type
TTestLocalMethod = TProc;
TTestMethod = procedure of object;
Assert = class
private
class var fIgnoreCaseDefault: boolean;
class var fOnAssert: TProc;
class var fTestFailure: ExceptClass;
class var fTestPass: ExceptClass;
class procedure CheckExceptionClass(E: Exception; const exceptionClass: ExceptClass);
class procedure CheckExceptionClassDescendant(E: Exception; const exceptionClass: ExceptClass);
protected
class function StreamsEqual(const stream1, stream2: TStream): boolean;
class function AddLineBreak(const msg: string): string;
class procedure DoAssert; inline;
public
class procedure Pass(const message : string = '');
class procedure Fail(const message : string = ''; const errorAddrs : pointer = nil);
class procedure FailFmt(const message : string; const args: array of const; const errorAddrs : pointer = nil);
class procedure NotImplemented;
class procedure AreEqual(const expected : string; const actual : string; const ignoreCase : boolean; const message : string = '');overload;
class procedure AreEqual(const expected : string; const actual : string; const message : string = '');overload;
class procedure AreEqual(const expected, actual : Double; const tolerance : Double; const message : string = '');overload;
class procedure AreEqual(const expected, actual : Double; const message : string = '');overload;
class procedure AreEqual(const expected, actual : Extended; const tolerance : Extended; const message : string = '');overload;
class procedure AreEqual(const expected, actual : Extended; const message : string = '');overload;
class procedure AreEqual(const expected, actual : TClass; const message : string = '');overload;
class procedure AreEqual(const expected, actual : TStream; const message : string = '');overload;
{$IFNDEF DELPHI_XE_DOWN}
//Delphi 2010 and XE compiler bug breaks this
class procedure AreEqual<T>(const expected, actual : T; const message : string = '');overload;
{$ENDIF}
class procedure AreEqual(const expected, actual : word; const message : string = '');overload;
class procedure AreEqual(const expected, actual : Integer; const message : string = '');overload;
class procedure AreEqual(const expected, actual : cardinal; const message : string = '');overload;
class procedure AreEqual(const expected, actual : boolean; const message : string = '');overload;
class procedure AreEqual(const expected, actual: TGUID; const message : string = '');overload;
class procedure AreEqual(const expected, actual: TStrings; const ignoreLines: array of integer; const message : string = '');overload;
class procedure AreEqual(const expected, actual: TStrings; const message : string = '');overload;
class procedure AreEqualMemory(const expected : Pointer; const actual : Pointer; const size : Cardinal; const message : string = '');
class procedure AreNotEqual(const expected : string; const actual : string; const ignoreCase : boolean; const message : string = '');overload;
class procedure AreNotEqual(const expected : string; const actual : string; const message : string = '');overload;
class procedure AreNotEqual(const expected, actual : Extended; const tolerance : Extended; const message : string = '');overload;
class procedure AreNotEqual(const expected, actual : Extended; const message : string = '');overload;
class procedure AreNotEqual(const expected, actual : Double; const tolerance : double; const message : string = '');overload;
class procedure AreNotEqual(const expected, actual : Double; const message : string = '');overload;
class procedure AreNotEqual(const expected, actual : TClass; const message : string = '');overload;
class procedure AreNotEqual(const expected, actual : TStream; const message : string = '');overload;
{$IFNDEF DELPHI_XE_DOWN}
//Delphi 2010 and XE compiler bug breaks this
class procedure AreNotEqual<T>(const expected, actual : T; const message : string = '');overload;
{$ENDIF}
class procedure AreNotEqual(const expected, actual : Integer; const message : string = '');overload;
class procedure AreNotEqual(const expected, actual : TGUID; const message : string = '');overload;
class procedure AreNotEqualMemory(const expected : Pointer; const actual : Pointer; const size : Cardinal; const message : string = '');
class procedure AreSame(const expected, actual : TObject; const message : string = '');overload;
class procedure AreSame(const expected, actual : IInterface; const message : string = '');overload;
class procedure AreNotSame(const expected, actual : TObject; const message : string = '');overload;
class procedure AreNotSame(const expected, actual : IInterface; const message : string = '');overload;
{$IFDEF DELPHI_XE_UP}
//Delphi 2010 compiler bug breaks this
class procedure Contains<T>(const list : IEnumerable<T>; const value : T; const message : string = '');overload;
class procedure Contains<T>(const arr : array of T; const value : T; const message : string = '');overload;
class procedure DoesNotContain<T>(const list : IEnumerable<T>; const value : T; const message : string = '');overload;
class procedure DoesNotContain<T>(const arr : array of T; const value : T; const message : string = '');overload;
{$ENDIF}
class function Implements<T : IInterface>(value : IInterface; const message : string = '' ) : T;
class procedure IsTrue(const condition : boolean; const message : string = '');
class procedure IsFalse(const condition : boolean; const message : string = '');
class procedure IsNull(const condition : TObject; const message : string = '');overload;
class procedure IsNull(const condition : Pointer; const message : string = '');overload;
class procedure IsNull(const condition : IInterface; const message : string = '');overload;
class procedure IsNull(const condition : Variant; const message : string = '');overload;
class procedure IsNotNull(const condition : TObject; const message : string = '');overload;
class procedure IsNotNull(const condition : Pointer; const message : string = '');overload;
class procedure IsNotNull(const condition : IInterface; const message : string = '');overload;
class procedure IsNotNull(const condition : Variant; const message : string = '');overload;
class procedure IsEmpty(const value : string; const message : string = '');overload;
class procedure IsEmpty(const value : Variant; const message : string = '');overload;
class procedure IsEmpty(const value : TStrings; const message : string = '');overload;
class procedure IsEmpty(const value : TList; const message : string = '');overload;
class procedure IsEmpty(const value : IInterfaceList; const message : string = '');overload;
{$IFDEF DELPHI_XE_UP}
//Delphi 2010 compiler bug breaks this
class procedure IsEmpty<T>(const value : IEnumerable<T>; const message : string = '');overload;
{$ENDIF}
class procedure IsNotEmpty(const value : string; const message : string = '');overload;
class procedure IsNotEmpty(const value : Variant; const message : string = '');overload;
class procedure IsNotEmpty(const value : TStrings; const message : string = '');overload;
class procedure IsNotEmpty(const value : TList; const message : string = '');overload;
class procedure IsNotEmpty(const value : IInterfaceList; const message : string = '');overload;
{$IFDEF DELPHI_XE_UP}
//Delphi 2010 compiler bug breaks this
class procedure IsNotEmpty<T>(const value : IEnumerable<T>; const message : string = '');overload;
{$ENDIF}
/// <summary>
/// Checks that an exception exactly matching ExceptClass will be raised.
/// </summary>
class procedure WillRaise(const AMethod : TTestLocalMethod; const exceptionClass : ExceptClass = nil; const msg : string = ''); overload;
/// <summary>
/// Checks that an exception exactly matching ExceptClass and Message will be raised.
/// </summary>
class procedure WillRaiseWithMessage(const AMethod : TTestLocalMethod; const exceptionClass : ExceptClass = nil; const exceptionMsg: string = ''; const msg : string = ''); overload;
/// <summary>
/// Checks that an exception exactly matching ExceptClass will be raised.
/// </summary>
class procedure WillRaise(const AMethod : TTestMethod; const exceptionClass : ExceptClass = nil; const msg : string = ''); overload;
/// <summary>
/// Checks that an exception that descends from ExceptClass will be raised.
/// </summary>
class procedure WillRaiseDescendant(const AMethod : TTestLocalMethod; const exceptionClass : ExceptClass = nil; const msg : string = ''); overload;
/// <summary>
/// Checks that an exception that descends from ExceptClass will be raised.
/// </summary>
class procedure WillRaiseDescendant(const AMethod : TTestMethod; const exceptionClass : ExceptClass = nil; const msg : string = ''); overload;
/// <summary>
/// Checks that an exception will be raised.
/// </summary>
class procedure WillRaiseAny(const AMethod : TTestLocalMethod; const msg : string = ''); overload;
/// <summary>
/// Checks that an exception will be raised.
/// </summary>
class procedure WillRaiseAny(const AMethod : TTestMethod; const msg : string = ''); overload;
/// <summary>
/// Checks that an exception exactly matching ExceptClass will not be raised.
/// </summary>
class procedure WillNotRaise(const AMethod : TTestLocalMethod; const exceptionClass : ExceptClass = nil; const msg : string = ''); overload;
/// <summary>
/// Checks that an exception exactly matching ExceptClass will not be raised.
/// </summary>
class procedure WillNotRaise(const AMethod : TTestMethod; const exceptionClass : ExceptClass = nil; const msg : string = ''); overload;
/// <summary>
/// Checks that an exception that descends from ExceptClass not will be raised.
/// </summary>
class procedure WillNotRaiseDescendant(const AMethod : TTestLocalMethod; const exceptionClass : ExceptClass = nil; const msg : string = ''); overload;
/// <summary>
/// Checks that an exception that descends from ExceptClass not will be raised.
/// </summary>
class procedure WillNotRaiseDescendant(const AMethod : TTestMethod; const exceptionClass : ExceptClass = nil; const msg : string = ''); overload;
/// <summary>
/// Checks that an exception of Any type not will be raised. This method
/// is to complement <see cref="DUnitX.TestFramework|Assert.WillRaiseAny(TTestLocalMethod,string)">
/// WillRaiseAny</see> method, and is not required, as the default behavior of a test
/// is to fail when any exception is raised.
/// </summary>
class procedure WillNotRaiseAny(const AMethod : TTestLocalMethod; const msg : string = ''); overload;
/// <summary>
/// Checks that an exception of Any type not will be raised. This method
/// is to complement <see cref="DUnitX.TestFramework|Assert.WillRaiseAny(TTestMethod,string)">
/// WillRaiseAny</see> method, and is not required, as the default behavior of a test
/// is to fail when any exception is raised.
/// </summary>
class procedure WillNotRaiseAny(const AMethod : TTestMethod; const msg : string = ''); overload;
class procedure Contains(const theString : string; const subString : string; const ignoreCase : boolean; const message : string = ''); overload;
class procedure Contains(const theString : string; const subString : string; const message : string = ''); overload;
class procedure DoesNotContain(const theString : string; const subString : string; const ignoreCase : boolean; const message : string = ''); overload;
class procedure DoesNotContain(const theString : string; const subString : string; const message : string = ''); overload;
class procedure Contains(const theStrings : TStrings; const subString : string; const ignoreCase : boolean; const message : string = ''); overload;
class procedure Contains(const theStrings : TStrings; const subString : string; const message : string = ''); overload;
class procedure DoesNotContain(const theStrings : TStrings; const subString : string; const ignoreCase : boolean; const message : string = ''); overload;
class procedure DoesNotContain(const theStrings : TStrings; const subString : string; const message : string = ''); overload;
class procedure StartsWith(const subString : string; const theString : string; const ignoreCase : boolean; const message : string = ''); overload;
class procedure StartsWith(const subString : string; const theString : string; const message : string = ''); overload;
class procedure EndsWith(const subString : string; const theString : string; const ignoreCase : boolean; const message : string = ''); overload;
class procedure EndsWith(const subString : string; const theString : string; const message : string = ''); overload;
class procedure InheritsFrom(const descendant : TClass; const parent : TClass; const message : string = '');
{$IFDEF DELPHI_XE_UP}
//Delphi 2010 compiler bug breaks this
class procedure IsType<T>(const value : T; const message : string = '');overload;deprecated 'use inheritsfrom - istype is useless';
{$ENDIF}
/// <summary>
/// Checks that there is no difference between the given strings. If there is a difference, then
/// the test will fail with extended informations about the starting position of the difference.
/// </summary>
class procedure NoDiff(const expected, actual: string; const ignoreCase : boolean; const message : string = ''); overload;
/// <summary>
/// Checks that there is no difference between the given strings. If there is a difference, then
/// the test will fail with extended informations about the starting position of the difference.
/// </summary>
class procedure NoDiff(const expected, actual: string; const message : string = ''); overload;
{$IFDEF SUPPORTS_REGEX}
class procedure IsMatch(const regexPattern : string; const theString : string; const message : string = '');
{$ENDIF}
class property OnAssert: TProc read fOnAssert write fOnAssert;
class property TestFailure: ExceptClass read fTestFailure write fTestFailure;
class property TestPass: ExceptClass read fTestPass write fTestPass;
class property IgnoreCaseDefault: boolean read fIgnoreCaseDefault write fIgnoreCaseDefault;
class constructor Create;
end;
{$IFDEF DELPHI_XE_DOWN}
function ReturnAddress: Pointer; assembler;
{$ENDIF}
implementation
uses
DUnitX.ResStrs,
DUnitX.Utils,
{$IFDEF SUPPORTS_REGEX}
{$IFDEF USE_TREGEXPR}
RegExpr,
{$ELSE}
System.RegularExpressions,
{$ENDIF}
{$ENDIF}
{$IFDEF USE_NS}
System.Generics.Collections,
System.Generics.Defaults,
System.Math,
System.Rtti,
System.StrUtils,
System.TypInfo,
System.Variants;
{$ELSE}
Generics.Collections,
Generics.Defaults,
Math,
Rtti,
StrUtils,
TypInfo,
Variants;
{$ENDIF}
{$IFDEF DELPHI_XE_DOWN}
function IsBadPointer(P: Pointer):Boolean;register;
begin
try
Result := (p = nil) or ((Pointer(P^) <> P) and (Pointer(P^) = P));
except
Result := true;
end
end;
function ReturnAddress: Pointer; assembler;
const
CallerIP = $4;
asm
mov eax, ebp
call IsBadPointer
test eax,eax
jne @@Error
mov eax, [ebp].CallerIP
sub eax, 5 // 5 bytes for call
push eax
call IsBadPointer
test eax,eax
pop eax
je @@Finish
@@Error:
xor eax, eax
@@Finish:
end;
{$ENDIF}
{ Assert }
class procedure Assert.AreEqual(const expected, actual, tolerance: Extended; const message: string);
begin
DoAssert;
if not {$IFDEF USE_NS}System.Math.{$ENDIF}SameValue(expected,actual,tolerance) then
FailFmt(SUnexpectedErrorExt ,[expected,actual,message], ReturnAddress);
end;
class procedure Assert.AreEqual(const expected, actual: TClass; const message: string);
var
msg : string;
begin
DoAssert;
if expected <> actual then
begin
msg := ' is not equal to ';
if expected = nil then
msg := 'nil' + msg
else
msg := expected.ClassName + msg;
if actual = nil then
msg := msg + 'nil'
else
msg := msg + actual.ClassName;
if message <> '' then
msg := msg + '. ' + message;
Fail(msg, ReturnAddress);
end;
end;
{$IFNDEF DELPHI_XE_DOWN}
//Delphi 2010 and XE compiler bug breaks this
class procedure Assert.AreEqual<T>(const expected, actual: T; const message: string);
var
comparer : IComparer<T>;
expectedValue, actualValue : TValue;
begin
DoAssert;
comparer := TComparer<T>.Default;
if comparer.Compare(actual,expected) <> 0 then
begin
expectedValue := TValue.From<T>(expected);
actualValue := TValue.From<T>(actual);
FailFmt(SNotEqualErrorStr, [expectedValue.ToString, actualValue.ToString, message], ReturnAddress)
end;
end;
{$ENDIF}
class function Assert.AddLineBreak(const msg: string): string;
begin
if msg <> '' then
Result := sLineBreak + msg
else
Result := '';
end;
class procedure Assert.AreEqual(const expected, actual: Integer; const message: string);
begin
DoAssert;
if expected <> actual then
FailFmt(SUnexpectedErrorInt ,[expected, actual, message], ReturnAddress);
end;
class procedure Assert.AreEqual(const expected, actual: boolean; const message: string);
begin
DoAssert;
if expected <> actual then
FailFmt(SUnexpectedErrorStr ,[BoolToStr(expected, true), BoolToStr(actual, true), message], ReturnAddress);
end;
class procedure Assert.AreEqual(const expected, actual: cardinal; const message: string);
begin
DoAssert;
if expected <> actual then
FailFmt(SUnexpectedErrorInt ,[expected, actual, message], ReturnAddress);
end;
class procedure Assert.AreEqual(const expected, actual, tolerance: Double; const message: string);
begin
DoAssert;
if not {$IFDEF USE_NS}System.Math.{$ENDIF}SameValue(expected,actual,tolerance) then
FailFmt(SUnexpectedErrorDbl ,[expected,actual,message], ReturnAddress);
end;
class procedure Assert.AreEqual(const expected, actual: Double; const message: string);
var
tolerance : Double;
begin
tolerance := 0;
AreEqual(expected, actual, tolerance, message);
end;
class procedure Assert.AreEqual(const expected, actual: Extended; const message: string);
var
tolerance : Extended;
begin
tolerance := 0;
AreEqual(expected, actual, tolerance, message);
end;
class procedure Assert.AreEqualMemory(const expected : Pointer; const actual : Pointer; const size : Cardinal; const message : string);
begin
DoAssert;
if not CompareMem(expected, actual, size) then
Fail(SMemoryValuesNotEqual + message, ReturnAddress);
end;
class procedure Assert.AreNotEqual(const expected, actual, tolerance: Extended; const message: string);
begin
DoAssert;
if {$IFDEF USE_NS}System.Math.{$ENDIF}SameValue(expected, actual, tolerance) then
FailFmt(SEqualsErrorExt ,[expected,actual,message], ReturnAddress);
end;
class procedure Assert.AreNotEqual(const expected, actual: string;const ignoreCase: boolean; const message: string);
function AreNotEqualText(const expected, actual: string; const ignoreCase: boolean): boolean;
begin
if ignoreCase then
Result := SameText(expected, actual)
else
Result := SameStr(expected, actual);
end;
begin
DoAssert;
if AreNotEqualText(expected, actual, ignoreCase) then
FailFmt(SEqualsErrorStr, [expected, actual, message], ReturnAddress);
end;
class procedure Assert.AreNotEqual(const expected, actual: TClass; const message: string);
var
msg : string;
begin
DoAssert;
if expected = actual then
begin
msg := ' is equal to ';
if expected = nil then
msg := 'nil' + msg
else
msg := expected.ClassName + msg;
if actual = nil then
msg := msg + 'nil'
else
msg := msg + actual.ClassName;
if message <> '' then
msg := msg + '. ' + message;
Fail(msg, ReturnAddress);
end;
end;
{$IFNDEF DELPHI_XE_DOWN}
//Delphi 2010 and XE compiler bug breaks this
class procedure Assert.AreNotEqual<T>(const expected, actual: T; const message: string);
var
comparer : IComparer<T>;
expectedValue, actualValue : TValue;
begin
DoAssert;
comparer := TComparer<T>.Default;
if comparer.Compare(actual,expected) = 0 then
begin
expectedValue := TValue.From<T>(expected);
actualValue := TValue.From<T>(actual);
FailFmt(SEqualsErrorStr2,[expectedValue.ToString, actualValue.ToString, message], ReturnAddress);
end;
end;
{$ENDIF}
class procedure Assert.AreNotEqual(const expected, actual: Integer; const message: string);
begin
DoAssert;
if expected = actual then
FailFmt(SEqualsErrorInt ,[expected, actual, message], ReturnAddress);
end;
class procedure Assert.AreNotEqual(const expected, actual: Extended; const message: string);
var
tolerance : Extended;
begin
tolerance := 0;
Assert.AreNotEqual(expected,actual,tolerance,message);
end;
class procedure Assert.AreNotEqual(const expected, actual: Double; const message: string);
var
tolerance : double;
begin
tolerance := 0;
Assert.AreNotEqual(expected,actual,tolerance,message);
end;
class procedure Assert.AreNotEqual(const expected, actual, tolerance: double; const message: string);
begin
DoAssert;
if {$IFDEF USE_NS}System.Math.{$ENDIF}SameValue(expected, actual, tolerance) then
FailFmt(SEqualsErrorDbl ,[expected,actual,message], ReturnAddress);
end;
class procedure Assert.AreNotEqualMemory(const expected, actual: Pointer; const size: Cardinal; const message: string);
begin
DoAssert;
if CompareMem(expected,actual, size) then
Fail(SMemoryValuesEqual + message, ReturnAddress);
end;
class procedure Assert.AreNotSame(const expected, actual: TObject; const message: string);
begin
DoAssert;
if expected.Equals(actual) then
FailFmt(SEqualsErrorObj, [expected.ToString,actual.ToString,message], ReturnAddress);
end;
class procedure Assert.AreNotSame(const expected, actual: IInterface; const message: string);
begin
DoAssert;
if (expected as IInterface) = (actual as IInterface) then
FailFmt(SEqualsErrorIntf,[message], ReturnAddress);
end;
class procedure Assert.AreSame(const expected, actual: IInterface; const message: string);
begin
DoAssert;
if (expected as IInterface) <> (actual as IInterface) then
FailFmt(SNotEqualErrorIntf,[message], ReturnAddress);
end;
class procedure Assert.AreSame(const expected, actual: TObject; const message: string);
begin
DoAssert;
if not expected.Equals(actual) then
FailFmt(SNotEqualErrorObj, [expected.ToString,actual.ToString,message], ReturnAddress);
end;
{$IFDEF DELPHI_XE_UP}
//Delphi 2010 compiler bug breaks this
class procedure Assert.Contains<T>(const list: IEnumerable<T>; const value: T; const message: string);
var
o : T;
comparer : IComparer<T>;
begin
DoAssert;
comparer := TComparer<T>.Default;
for o in list do
begin
if comparer.Compare(o,value) = 0 then
exit;
end;
FailFmt(SValueNotInList,[TValue.From<T>(value).ToString, message], ReturnAddress);
end;
class procedure Assert.Contains<T>(const arr : array of T; const value : T; const message : string = '');
var
o : T;
comparer : IComparer<T>;
begin
DoAssert;
comparer := TComparer<T>.Default;
for o in arr do
begin
if comparer.Compare(o,value) = 0 then
exit;
end;
FailFmt(SValueNotInList,[TValue.From<T>(value).ToString, message], ReturnAddress);
end;
{$ENDIF}
{$IFDEF DELPHI_XE_UP}
//Delphi 2010 compiler bug breaks this
class procedure Assert.DoesNotContain<T>(const list: IEnumerable<T>; const value: T; const message: string);
var
o : T;
comparer : IComparer<T>;
begin
DoAssert;
comparer := TComparer<T>.Default;
for o in list do
begin
if comparer.Compare(o,value) = 0 then
FailFmt(SValueInList,[TValue.From<T>(value).ToString, message], ReturnAddress);
end;
end;
class procedure Assert.DoesNotContain<T>(const arr : array of T; const value : T; const message : string = '');
var
o : T;
comparer : IComparer<T>;
begin
DoAssert;
comparer := TComparer<T>.Default;
for o in arr do
begin
if comparer.Compare(o,value) = 0 then
FailFmt(SValueInList,[TValue.From<T>(value).ToString, message], ReturnAddress);
end;
end;
{$ENDIF}
class procedure Assert.Fail(const message : string; const errorAddrs : pointer);
begin
//If we have been given a return then use it. (makes the exception appear on level above in the stack)
if errorAddrs <> nil then
raise fTestFailure.Create(message) at errorAddrs
else
//Otherwise use the return address we can currently get to for where to raise the exception
raise fTestFailure.Create(message) at ReturnAddress;
end;
class procedure Assert.FailFmt(const message: string; const args: array of const; const errorAddrs: pointer);
begin
Fail(Format(message, args), errorAddrs);
end;
class procedure Assert.Pass(const message: string);
begin
raise fTestPass.Create(message);
end;
class procedure Assert.StartsWith(const subString, theString, message: string);
begin
Assert.StartsWith(subString, theString, fIgnoreCaseDefault, message);
end;
class function Assert.StreamsEqual(const stream1, stream2: TStream): boolean;
const
BlockSize = 4096;
var
Buffer1: array[0..BlockSize - 1] of byte;
Buffer2: array[0..BlockSize - 1] of byte;
BufferLen: integer;
begin
Result := False;
if stream1.Size = stream2.Size then
begin
stream1.Position := 0;
stream2.Position := 0;
while stream1.Position < stream1.Size do
begin
BufferLen := stream1.Read(Buffer1, BlockSize);
stream2.Read(Buffer2, BlockSize);
if not CompareMem(@Buffer1, @Buffer2, BufferLen) then
exit;
end;
Result := True;
end;
end;
class function Assert.Implements<T>(value: IInterface; const message: string) : T;
begin
DoAssert;
if not Supports(value,GetTypeData(TypeInfo(T)).Guid,result) then
FailFmt(SIntfNotImplemented, [GetTypeName(TypeInfo(T)), message],ReturnAddress);
end;
class procedure Assert.InheritsFrom(const descendant, parent: TClass; const message: string);
var
msg : string;
begin
DoAssert;
if (descendant = nil) or (parent = nil) or (not descendant.InheritsFrom(parent)) then
begin
msg := ' does not inherit from ';
if descendant = nil then
msg := 'nil' + msg
else
msg := descendant.ClassName + msg;
if parent = nil then
msg := msg + 'nil'
else
msg := msg + parent.ClassName;
msg := msg + '.';
if True then
if message <> '' then
msg := msg + ' ' + message;
Fail(msg, ReturnAddress);
end;
end;
class procedure Assert.IsEmpty(const value: IInterfaceList; const message: string);
begin
DoAssert;
if value.Count > 0 then
FailFmt(SListNotEmpty,[message], ReturnAddress);
end;
class procedure Assert.IsEmpty(const value: TList; const message: string);
begin
DoAssert;
if value.Count > 0 then
FailFmt(SListNotEmpty,[message], ReturnAddress);
end;
class procedure Assert.IsEmpty(const value, message: string);
begin
DoAssert;
if Length(value) > 0 then
FailFmt(SStrNotEmpty,[message], ReturnAddress);
end;
class procedure Assert.IsEmpty(const value: Variant; const message: string);
begin
DoAssert;
if VarIsEmpty(value) or VarIsNull(value) then
FailFmt(SVarNotEmpty,[message], ReturnAddress);
end;
class procedure Assert.IsEmpty(const value: TStrings; const message: string);
begin
DoAssert;
if value.Count > 0 then
FailFmt(SListNotEmpty,[message], ReturnAddress);
end;
{$IFDEF DELPHI_XE_UP}
//Delphi 2010 compiler bug breaks this
class procedure Assert.IsEmpty<T>(const value: IEnumerable<T>; const message: string);
var
o : T;
count : integer;
begin
DoAssert;
count := 0;
for o in value do
Inc(count);
if count > 0 then
FailFmt(SListNotEmpty,[message], ReturnAddress);
end;
{$ENDIF}
class procedure Assert.IsFalse(const condition: boolean; const message: string);
begin
DoAssert;
if condition then
FailFmt(SIsFalseError,[message], ReturnAddress);
end;
class procedure Assert.IsNotEmpty(const value: TList; const message: string);
begin
DoAssert;
if value.Count = 0 then
FailFmt(SListEmpty, [message], ReturnAddress);
end;
class procedure Assert.IsNotEmpty(const value: IInterfaceList; const message: string);
begin
DoAssert;
if value.Count = 0 then
FailFmt(SListEmpty, [message], ReturnAddress);
end;
class procedure Assert.IsNotEmpty(const value: TStrings; const message: string);
begin
DoAssert;
if value.Count = 0 then
FailFmt(SListEmpty, [message], ReturnAddress);
end;
class procedure Assert.IsNotEmpty(const value, message: string);
begin
DoAssert;
if value = '' then
FailFmt(SStrEmpty,[message], ReturnAddress);
end;
class procedure Assert.IsNotEmpty(const value: Variant; const message: string);
begin
DoAssert;
if VarIsEmpty(value) then
FailFmt(SVarEmpty,[message], ReturnAddress);
end;
{$IFDEF DELPHI_XE_UP}
//Delphi 2010 compiler bug breaks this
class procedure Assert.IsNotEmpty<T>(const value: IEnumerable<T>; const message: string);
var
x : T;
count : integer;
begin
DoAssert;
count := 0;
for x in value do
Inc(count);
if count = 0 then
FailFmt(SListEmpty,[message], ReturnAddress);
end;
{$ENDIF}
class procedure Assert.IsNotNull(const condition: IInterface; const message: string);
begin
DoAssert;
if condition = nil then
FailFmt(SIntfNil,[message], ReturnAddress);
end;
class procedure Assert.IsNotNull(const condition: Pointer; const message: string);
begin
DoAssert;
if condition = nil then
FailFmt(SPointerNil,[message], ReturnAddress);
end;
class procedure Assert.IsNotNull(const condition: TObject; const message: string);
begin
DoAssert;
if condition = nil then
FailFmt(SObjNil,[message], ReturnAddress);
end;
class procedure Assert.IsNotNull(const condition: Variant; const message: string);
begin
DoAssert;
if VarIsNull(condition) then
FailFmt(SVariantNull,[message], ReturnAddress);
end;
class procedure Assert.IsNull(const condition: Variant; const message: string);
begin
DoAssert;
if not VarIsNull(condition) then
FailFmt(SVariantNotNull,[message], ReturnAddress);
end;
class procedure Assert.IsNull(const condition: IInterface; const message: string);
begin
DoAssert;
if condition <> nil then
FailFmt(SIntfNotNil,[message], ReturnAddress);
end;
class procedure Assert.IsNull(const condition: TObject; const message: string);
begin
DoAssert;
if condition <> nil then
FailFmt(SObjNotNil,[message], ReturnAddress);
end;
class procedure Assert.IsNull(const condition: Pointer; const message: string);
begin
DoAssert;
if condition <> nil then
FailFmt(SPointerNotNil,[message], ReturnAddress);
end;
class procedure Assert.IsTrue(const condition: boolean;const message : string);
begin
DoAssert;
if not condition then
FailFmt(SIsTrueError,[message], ReturnAddress);
end;
class procedure Assert.NoDiff(const expected, actual: string; const ignoreCase : boolean; const message: string);
const
DIFF_LENGTH = 10;
var
lenExp, lenAct: integer;
strExp, strAct: string;
position: Integer;
begin
DoAssert;
lenExp := Length(expected);
lenAct := Length(actual);
if lenExp <> lenAct then
FailFmt(SLengthOfStringsNotEqual + ': ' + SUnexpectedErrorInt, [lenExp, lenAct, message])
else begin
if ignoreCase then
begin
strExp := UpperCase(expected);
strAct := UpperCase(actual);
end
else begin
strExp := expected;
strAct := actual;
end;
for position := 1 to lenExp do
begin
if (position <= lenAct) and (strExp[position] <> strAct[position]) then
FailFmt(SDiffAtPosition + ': ' + SStrDoesNotMatch, [position,
TStrUtils.EncodeWhitespace(Copy(expected, position, DIFF_LENGTH)),
TStrUtils.EncodeWhitespace(Copy(actual, position, DIFF_LENGTH)), message]);
end;
end;
end;
class procedure Assert.NoDiff(const expected, actual, message: string);
begin
NoDiff(expected, actual, false, message);
end;
class procedure Assert.NotImplemented;
begin
Assert.Fail(SNotImplemented);
end;
{$IFDEF DELPHI_XE_UP}
//Delphi 2010 compiler bug breaks this
class procedure Assert.IsType<T>(const value: T; const message : string);
var
val : TValue;
begin
DoAssert;
val := TValue.From<T>(value);
if not val.IsType<T> then
Fail(STypeError, ReturnAddress);
end;
{$ENDIF}
class procedure Assert.WillNotRaise(const AMethod: TTestMethod; const exceptionClass: ExceptClass; const msg: string);
begin
Assert.WillNotRaise(
procedure
begin
AMethod;
end,
exceptionClass, msg);
end;
class procedure Assert.WillNotRaiseAny(const AMethod: TTestLocalMethod; const msg: string);
begin
DoAssert;
try
AMethod;
except
on e : TObject do // For those who throw exceptions not descending from Exception.
begin
if e is Exception then
begin
FailFmt(SUnexpectedException, [e.ClassName, exception(e).message], ReturnAddress);
end
else
FailFmt(SUnexpectedExceptionAlt, [e.ClassName], ReturnAddress);
end;
end;
end;
class procedure Assert.WillNotRaiseAny(const AMethod: TTestMethod;const msg: string);
begin
Assert.WillNotRaiseAny(
procedure
begin
AMethod;
end,
msg);
end;
class procedure Assert.WillNotRaiseDescendant(const AMethod: TTestLocalMethod; const exceptionClass: ExceptClass; const msg: string);
begin
DoAssert;
try