+ Unit tests for TXMLReader-based XML parsing classes.

git-svn-id: trunk@27122 -

.gitattributes

@@ -3109,6 +3109,8 @@ packages/fcl-xml/tests/api.xml svneol=native#text/plain
 packages/fcl-xml/tests/domunit.pp svneol=native#text/plain
 packages/fcl-xml/tests/extras.pp svneol=native#text/plain
 packages/fcl-xml/tests/extras2.pp svneol=native#text/plain
+packages/fcl-xml/tests/readertest.pp svneol=native#text/plain
+packages/fcl-xml/tests/readerunit.pp svneol=native#text/plain
 packages/fcl-xml/tests/template.xml svneol=native#text/plain
 packages/fcl-xml/tests/testgen.pp svneol=native#text/plain
 packages/fcl-xml/tests/xmlts.pp svneol=native#text/plain

packages/fcl-xml/tests/readertest.pp

@@ -0,0 +1,671 @@
+{**********************************************************************
+
+    This file is part of the Free Component Library (FCL)
+
+    Test cases for TXMLReader class and its descendants
+    Copyright (c) 2012 by Sergei Gorelkin, sergei_gorelkin@mail.ru
+
+    Using tests from Mono test suite, written by
+      Jason Diamond (jason@injektilo.org)
+      Martin Willemoes Hansen (mwh@sysrq.dk)
+      (C) 2001, 2002 Jason Diamond  http://injektilo.org/    
+
+    See the file COPYING.FPC, included in this distribution,
+    for details about the copyright.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+ **********************************************************************}
+unit readertest;
+{$mode objfpc}{$h+}
+
+interface
+implementation
+
+uses
+  sysutils, fpcunit, testregistry, xmlutils, readerunit, XmlReader;
+
+type
+  TXMLReaderTest = class(TXMLReaderTestBase)
+  public
+    procedure TestInitialState(r: TXMLReader);
+    procedure TestReadEmptySource(r: TXMLReader);
+    procedure TestRead(r: TXMLReader);
+    procedure TestReadAttributeValue(r: TXMLReader);
+    procedure TestReadAttributeValue2(r: TXMLReader);
+    procedure TestDTDProperties(r: TXMLReader);
+    procedure TestReadStringFromElement(r: TXMLReader);
+    procedure TestEmptyElement(r: TXMLReader);
+    procedure TestNestedEmptyTag(r: TXMLReader);
+    procedure TestNestedText(r: TXMLReader);
+    procedure TestEmptyElementWithAttributes(r: TXMLReader);
+    procedure TestPIBeforeRoot(r: TXMLReader);
+    procedure TestCommentBeforeRoot(r: TXMLReader);
+    procedure TestCDATA(r: TXMLReader);
+    procedure TestChildElementInNamespace(r: TXMLReader);
+    procedure TestMoveToElementFromAttribute(r: TXMLReader);
+    procedure TestMoveToElementFromElement(r: TXMLReader);
+    procedure TestMoveToNextAttribute(r: TXMLReader);
+    procedure TestResolveEntity(r: TXMLReader);
+    procedure TestLineInfo(r: TXMLReader);
+  published
+    procedure InitialState;
+    procedure ReadEmptySource;
+    procedure Read;
+    procedure ReadAttributeValue;
+    procedure ReadAttributeValue2;
+    procedure DTDProperties;
+    procedure ReadStringFromElement;
+    procedure EmptyElement;
+    procedure NestedEmptyTag;
+    procedure NestedText;
+    procedure EmptyElementWithAttributes;
+    procedure PIBeforeRoot;
+    procedure CommentBeforeRoot;
+    procedure CDATA;
+    procedure ChildElementInNamespace;
+    procedure MoveToElementFromAttribute;
+    procedure MoveToElementFromElement;
+    procedure MoveToNextAttribute;
+    procedure ResolveEntity;
+    procedure LineInfo;
+  end;
+
+const
+  xml1 = '<root attr1=''value1''><child /></root>';
+  xml2 = '<root><foo/><bar>test.</bar></root>';
+  xml3 = '<root>  test of <b>mixed</b> string.<![CDATA[ cdata string.]]></root>';
+
+
+procedure TXMLReaderTest.TestInitialState(r: TXMLReader);
+begin
+  AssertEquals('Depth', 0, r.Depth);
+  AssertEquals('EOF', False, r.EOF);
+  AssertEquals('HasValue', False, r.HasValue);
+  AssertEqualsW('LocalName', '', r.LocalName);
+  AssertEquals('NodeType', ntNone, r.NodeType);
+  AssertEquals('ReadState', rsInitial, r.ReadState);
+end;
+
+procedure TXMLReaderTest.InitialState;
+begin
+  DoTest(xml1, @TestInitialState);
+end;
+
+// TODO: this should fail only when conformancelevel=document
+procedure TXMLReaderTest.TestReadEmptySource(r: TXMLReader);
+begin
+  try
+    r.Read;
+    Fail('Read empty source succeeded');
+  except
+  end;
+end;
+
+procedure TXMLReaderTest.ReadEmptySource;
+begin
+  DoTest('', @TestReadEmptySource);
+end;
+
+procedure TXMLReaderTest.TestRead(r: TXMLReader);
+begin
+  r.Read;
+  AssertEquals('<root>.NodeType', ntElement, r.NodeType);
+  AssertEqualsW('<root>.Name', 'root', r.Name);
+  AssertEquals('<root>.ReadState', rsInteractive, r.ReadState);
+  AssertEquals('<root>.Depth', 0, r.Depth);
+
+  // move to 'child'
+  r.Read;
+  AssertEquals('<child/>.Depth', 1, r.Depth);
+  AssertEquals('<child/>.NodeType', ntElement, r.NodeType);
+  AssertEqualsW('<child/>.Name', 'child', r.Name);
+
+  { this differs from .net; we don't support EmptyElement }
+  r.Read;
+  AssertEquals('<child/>.EndDepth', 1, r.Depth);
+  AssertEquals('<child/>.EndNodeType', ntEndElement, r.NodeType);
+  AssertEqualsW('<child/>.EndName', 'child', r.Name);
+
+  r.Read;
+  AssertEquals('</root>.Depth', 0, r.Depth);
+  AssertEquals('</root>.NodeType', ntEndElement, r.NodeType);
+  AssertEqualsW('</root>.Name', 'root', r.Name);
+
+  r.Read;
+  AssertTrue('end.EOF', r.EOF);
+  AssertEquals('end.NodeType', ntNone, r.NodeType);
+end;
+
+procedure TXMLReaderTest.Read;
+begin
+  DoTest(xml1, @TestRead);
+end;
+
+procedure TXMLReaderTest.TestReadAttributeValue(r: TXMLReader);
+begin
+  r.Read;       // root
+  AssertTrue('#1',r.MoveToFirstAttribute);
+  AssertNodeValues('#2', r,
+    ntAttribute,
+    1, 'attr', '', 'attr', '', 'value', true, 1, true);
+  AssertTrue('#3',r.ReadAttributeValue);
+  AssertNodeValues('#4', r,
+    ntText,
+    2, '', '', '', '', 'value', true, 1, true);
+  AssertTrue('#5',r.MoveToElement);
+  AssertNodeValues('#6', r,
+    ntElement,
+    0, 'root', '', 'root', '', '', false, 1, true);
+end;
+
+procedure TXMLReaderTest.ReadAttributeValue;
+begin
+  DoTest('<root attr="value"/>', @TestReadAttributeValue);
+end;
+
+procedure TXMLReaderTest.TestReadAttributeValue2(r: TXMLReader);
+begin
+  r.Read;       // DTD
+  r.Read;       // root
+  AssertTrue('#1',r.MoveToFirstAttribute);
+  AssertNodeValues('#2', r,
+    ntAttribute,
+    1, 'attr', '', 'attr', '', 'ax1y1x1b', true, 1, true);
+  AssertTrue('#3',r.ReadAttributeValue);
+  AssertNodeValues('#4', r,
+    ntText, 2,
+    '', '', '', '', 'a', true, 1, true);
+
+  AssertTrue('#5', r.ReadAttributeValue);
+  AssertNodeValues('#6', r,
+    ntEntityReference, 2,
+    'e1','','e1','', '', false, 1, true);
+
+  r.ResolveEntity;
+  AssertEquals('#6a', 2, r.Depth);
+  AssertEquals('#6b', ntEntityReference, r.nodeType);
+
+  AssertTrue('#6c', r.ReadAttributeValue);
+  AssertNodeValues('#6d', r,
+    ntEntityReference, 3,
+    'e2', '', 'e2', '', '', false, 1, true);
+
+  // Don't resolve it and advance to 'y1' textnode
+  AssertTrue('#6e', r.ReadAttributeValue);
+  AssertNodeValues('#6f', r,
+    ntText, 3,
+    '', '', '', '', 'y1', true, 1, true);
+
+  AssertTrue('#6g', r.ReadAttributeValue);
+  AssertNodeValues('#6h', r,
+    ntEntityReference, 3,
+    'e2', '', 'e2', '', '', false, 1, true);
+
+  r.ResolveEntity;
+
+  AssertTrue('#6i', r.ReadAttributeValue);
+  AssertNodeValues('#6j', r,
+    ntText, 4,
+    '','','','','x1', true, 1, true);
+
+  AssertTrue('#6k', r.ReadAttributeValue);
+  AssertNodeValues('#6l', r,
+    ntEndEntity, 3,
+    'e2','','e2','', '', false, 1, true);
+
+  AssertTrue('#7', r.ReadAttributeValue);
+  AssertNodeValues('#8', r,
+    ntEndEntity, 2,
+    'e1','','e1','', '', false, 1, true);
+
+  AssertTrue('#9', r.ReadAttributeValue);
+
+  AssertNodeValues('#10', r,
+    ntText, 2,
+    '', '', '', '', 'b', true, 1, true);
+  AssertFalse('#11', r.ReadAttributeValue);
+
+  AssertTrue('#12',r.MoveToElement);
+  AssertNodeValues('#13', r,
+    ntElement, 0,
+    'root', '', 'root', '', '', false, 1, true);
+
+end;
+
+procedure TXMLReaderTest.ReadAttributeValue2;
+const
+  xml = '<!DOCTYPE root ['+
+        '<!ELEMENT root ANY>'+
+        '<!ENTITY e2 "x1">'+
+        '<!ENTITY e1 "&e2;y1&e2;">]>'+
+        '<root attr="a&e1;b"/>';
+begin
+  DoTest(xml, @TestReadAttributeValue2);
+end;
+
+procedure TXMLReaderTest.TestDTDProperties(r: TXMLReader);
+begin
+  r.Read;
+  AssertNodeValues('#DTD',r,
+    ntDocumentType, 0,
+    'root', '', 'root', '', '<!ELEMENT root ANY><!ENTITY e2 "x1"><!ENTITY e1 "&e2;y1&e2;">', True, 0, False);
+  r.Read;
+  AssertNodeValues('#root',r,
+    ntElement, 0,
+    'root','', 'root', '', '', False,
+    1, True);
+end;
+
+procedure TXMLReaderTest.DTDProperties;
+const
+  xml = '<!DOCTYPE root ['+
+        '<!ELEMENT root ANY>'+
+        '<!ENTITY e2 "x1">'+
+        '<!ENTITY e1 "&e2;y1&e2;">]>'+
+        '<root attr="a&e1;b"/>';
+begin
+  DoTest(xml, @TestDTDProperties);
+end;
+
+procedure TXMLReaderTest.TestReadStringFromElement(r: TXMLReader);
+var
+  s: XMLString;
+begin
+  r.Read;
+  s := r.ReadString;
+  AssertEqualsW('readString.1.ret_val', '  test of ', s);
+  AssertEqualsW('readString.1.Name', 'b', r.Name);
+  s := r.ReadString;
+  AssertEqualsW('readString.2.ret_val', 'mixed', s);
+  AssertEquals('readString.2.nodeType', ntEndElement, r.NodeType);
+  s := r.ReadString; // does not advance
+  AssertEqualsW('readString.3.ret_val', '',s);
+  AssertEquals('readString.3.nodeType', ntEndElement, r.NodeType);
+  r.Read;
+  AssertEquals('readString.4.nodeType', ntText, r.NodeType);
+  AssertEqualsW('readString.4.Value', ' string.', r.Value);
+  s := r.ReadString;
+  AssertEqualsW('readString.5.ret_val', ' string. cdata string.', s);
+  AssertEquals('readString.5.nodeType', ntEndElement, r.NodeType);
+end;
+
+procedure TXMLReaderTest.ReadStringFromElement;
+begin
+  DoTest(xml3, @TestReadStringFromElement);
+end;
+
+procedure TXMLReaderTest.TestEmptyElement(r: TXMLReader);
+begin
+  AssertStartDocument(r);
+  AssertNode('#1', r, ntElement, 0,
+    'foo', '', 'foo', '', // name, prefix, localname, nsuri
+    '', 0);
+  AssertNode('#2', r, ntEndElement, 0,
+    'foo', '', 'foo', '',
+    '', 0);
+  AssertEndDocument(r);
+end;
+
+procedure TXMLReaderTest.EmptyElement;
+begin
+  DoTest('<foo/>', @TestEmptyElement);
+end;
+
+procedure TXMLReaderTest.TestNestedEmptyTag(r: TXMLReader);
+begin
+  AssertStartDocument(r);
+  AssertNode('#1', r,
+    ntElement, 0,
+    'foo', '', 'foo', '',
+    '', 0);
+  AssertNode('#2', r,
+    ntElement, 1,
+    'bar', '', 'bar', '',
+    '', 0);
+  AssertNode('#3', r,
+    ntEndElement, 1,
+    'bar', '', 'bar', '',
+    '', 0);
+  AssertNode('#4', r,
+    ntEndElement, 0,
+    'foo', '', 'foo', '',
+    '', 0);
+  AssertEndDocument(r);
+end;
+
+procedure TXMLReaderTest.NestedEmptyTag;
+begin
+  DoTest('<foo><bar/></foo>', @TestNestedEmptyTag);
+end;
+
+procedure TXMLReaderTest.TestNestedText(r: TXMLReader);
+begin
+  AssertStartDocument(r);
+  AssertNode('#1', r,
+    ntElement, 0,
+    'foo', '', 'foo', '',
+    '', 0);
+  AssertNode('#2', r,
+    ntText, 1,
+    '', '', '', '',
+    'bar', 0);
+  AssertNode('#3', r,
+    ntEndElement, 0,
+    'foo', '', 'foo', '',
+    '', 0);
+  AssertEndDocument(r);
+end;
+
+procedure TXMLReaderTest.NestedText;
+begin
+  DoTest('<foo>bar</foo>', @TestNestedText);
+end;
+
+procedure TXMLReaderTest.TestEmptyElementWithAttributes(r: TXMLReader);
+begin
+  AssertStartDocument(r);
+  AssertNode('#1', r,
+    ntElement, 0,
+    'foo', '', 'foo', '',
+    '', 4);
+  AssertAttribute(r,
+    'bar', '', 'bar', '',
+    'baz');
+  AssertAttribute(r,
+    'quux', '', 'quux', '',
+    'quuux');
+  AssertAttribute(r,                    // non-existing attribute
+    'notexist', '', 'notexist', '',
+    '');
+  AssertAttribute(r,                    // non-existing prefixed attribute
+    'x:bar', 'x', 'bar', 'urn:xfoo',
+    '');
+  AssertAttribute(r,
+    'x:foo', 'x', 'foo', 'urn:xfoo',
+    'x-foo');
+  AssertNode('#2', r,
+    ntEndElement, 0,
+    'foo', '', 'foo', '',
+    '', 0);
+  AssertEndDocument(r);
+end;
+
+procedure TXMLReaderTest.EmptyElementWithAttributes;
+begin
+  DoTest('<foo bar="baz" quux=''quuux'' x:foo=''x-foo'' xmlns:x = ''urn:xfoo'' />',
+    @TestEmptyElementWithAttributes);
+end;
+
+procedure TXMLReaderTest.TestPIBeforeRoot(r: TXMLReader);
+begin
+  AssertStartDocument(r);
+  AssertNode('#1', r,
+    ntProcessingInstruction, 0,
+    'foo', '', 'foo', '',
+    'bar', 0);
+  AssertNode('#2', r,
+    ntElement, 0,
+    'baz', '', 'baz', '',
+    '', 0);
+  AssertNode('#3', r,
+    ntEndElement, 0,
+    'baz', '', 'baz', '',
+    '', 0);
+  AssertEndDocument(r);
+end;
+
+procedure TXMLReaderTest.PIBeforeRoot;
+begin
+  DoTest('<?foo bar?><baz/>', @TestPIBeforeRoot);
+end;
+
+procedure TXMLReaderTest.TestCommentBeforeRoot(r: TXMLReader);
+begin
+  AssertStartDocument(r);
+  AssertNode('#1', r,
+    ntComment, 0,
+    '','','','',
+    'foo', 0);
+  AssertNode('#2', r,
+    ntElement, 0,
+    'bar', '', 'bar', '',
+    '', 0);
+  AssertNode('#3', r,
+    ntEndElement, 0,
+    'bar', '', 'bar', '',
+    '', 0);
+  AssertEndDocument(r);
+end;
+
+procedure TXMLReaderTest.CommentBeforeRoot;
+begin
+  DoTest('<!--foo--><bar/>', @TestCommentBeforeRoot);
+end;
+
+procedure TXMLReaderTest.TestCDATA(r: TXMLReader);
+begin
+  AssertStartDocument(r);
+  AssertNode('#1', r,
+   ntElement, 0,
+   'foo', '', 'foo', '',
+   '', 0);
+  AssertNode('#2', r,
+    ntCDATA, 1,
+    '','','','',
+    '<>&', 0);
+  AssertNode('#3', r,
+    ntEndElement, 0,
+    'foo', '', 'foo', '',
+    '',0);
+  AssertEndDocument(r);
+end;
+
+procedure TXMLReaderTest.CDATA;
+begin
+  DoTest('<foo><![CDATA[<>&]]></foo>', @TestCDATA);
+end;
+
+procedure TXMLReaderTest.ChildElementInNamespace;
+begin
+  DoTest('<foo:bar xmlns:foo=''http://foo/''><baz:quux xmlns:baz=''http://baz/'' /></foo:bar>', @TestChildElementInNamespace);
+end;
+
+procedure TXMLReaderTest.TestChildElementInNamespace(r: TXMLReader);
+begin
+  AssertStartDocument(r);
+
+  AssertNode('#1', r,
+    ntElement, 0,
+    'foo:bar', 'foo', 'bar', 'http://foo/',
+    '', 1);
+
+  AssertAttribute(r,
+    'xmlns:foo', 'xmlns', 'foo', 'http://www.w3.org/2000/xmlns/',
+    'http://foo/');
+
+  AssertEqualsW('http://foo/', r.LookupNamespace('foo'));
+
+  AssertNode('#2', r,
+    ntElement, 1,
+    'baz:quux', 'baz', 'quux', 'http://baz/',
+    '', 1);
+
+  AssertAttribute(r,
+    'xmlns:baz', 'xmlns', 'baz', 'http://www.w3.org/2000/xmlns/',
+    'http://baz/');
+
+  AssertEqualsW('http://foo/', r.LookupNamespace ('foo'));
+  AssertEqualsW('http://baz/', r.LookupNamespace ('baz'));
+
+  AssertNode('#3', r,
+    ntEndElement, 1,
+    'baz:quux', 'baz', 'quux', 'http://baz/',
+    '', 0);
+
+  AssertNode('#4', r,
+    ntEndElement, 0,
+    'foo:bar', 'foo', 'bar', 'http://foo/',
+    '', 0);
+
+  AssertEqualsW('http://foo/', r.LookupNamespace('foo'));
+  AssertNull('', r.LookupNamespace('baz'));
+
+  AssertEndDocument(r);
+end;
+
+procedure TXMLReaderTest.TestMoveToElementFromAttribute(r: TXMLReader);
+begin
+  AssertTrue(r.Read);
+  AssertEquals(ntElement, r.NodeType);
+  AssertTrue(r.MoveToFirstAttribute);
+  AssertEquals(ntAttribute, r.NodeType);
+  AssertTrue(r.MoveToElement);
+  AssertEquals(ntElement, r.NodeType);
+end;
+
+procedure TXMLReaderTest.MoveToElementFromAttribute;
+begin
+  DoTest('<foo bar="baz" />', @TestMoveToElementFromAttribute);
+end;
+
+procedure TXMLReaderTest.TestMoveToElementFromElement(r: TXMLReader);
+begin
+  AssertTrue(r.Read);
+  AssertEquals(ntElement, r.NodeType);
+  AssertFalse(r.MoveToElement);
+  AssertEquals(ntElement, r.NodeType);
+end;
+
+procedure TXMLReaderTest.MoveToElementFromElement;
+begin
+  DoTest('<foo bar="baz" />', @TestMoveToElementFromElement);
+end;
+
+// TODO: moveToFirstAttribute_negative
+//       moveToNextAttribute_negative
+
+procedure TXMLReaderTest.TestMoveToNextAttribute(r: TXMLReader);
+begin
+  AssertStartDocument(r);
+  AssertNode('#1', r,
+    ntElement, 0,
+    'foo', '', 'foo', '',
+    '', 2);
+  AssertAttribute(r,
+    'bar', '', 'bar', '',
+    'baz');
+  AssertAttribute(r,
+    'quux', '', 'quux', '',
+    'quuux');
+  AssertTrue(r.MoveToNextAttribute);
+  AssertEqualsW('bar', r.Name);
+  AssertEqualsW('baz', r.Value);
+  AssertTrue(r.MoveToNextAttribute);
+  AssertEqualsW('quux', r.Name);
+  AssertEqualsW('quuux', r.Value);
+  AssertFalse(r.MoveToNextAttribute);
+  AssertTrue(r.MoveToElement);
+  AssertNodeValues('#1', r,
+    ntElement, 0,
+    'foo','','foo','',
+    '', False, 2, True);
+  AssertNode('#2', r,
+    ntEndElement, 0,
+    'foo','','foo','',
+    '', 0);
+  AssertEndDocument(r);
+end;
+
+procedure TXMLReaderTest.MoveToNextAttribute;
+begin
+  DoTest('<foo bar="baz" quux=''quuux''/>', @TestMoveToNextAttribute);
+end;
+
+procedure TXMLReaderTest.TestResolveEntity(r: TXMLReader);
+begin
+  r.Read;       // DTD
+  r.Read;       // root
+  r.Read;       // &ent;
+  AssertEquals('#1', ntEntityReference, r.NodeType);
+  AssertEquals('#2', 1, r.Depth);
+  r.ResolveEntity;
+  // stays on entity reference
+  AssertEquals('#3', ntEntityReference, r.NodeType);
+  AssertEquals('#3a', 1, r.Depth);
+  r.Read;
+  // now advances to replacement text
+  AssertEquals('#4', ntText, r.NodeType);
+  AssertEquals('#5', 2, r.Depth);
+  AssertEqualsW('#6', 'entity string', r.Value);
+  r.Read;
+  AssertEquals('#7', ntEndEntity, r.NodeType);
+  AssertEquals('#8', 1, r.Depth);
+  AssertEqualsW('#9', '', r.Value);
+
+  r.Read;     // &ent2;
+  AssertEquals('#10', ntEntityReference, r.NodeType);
+  AssertEquals('#11', 1, r.Depth);
+  r.ResolveEntity;
+  // stays on entity reference
+  AssertEquals('#12', ntEntityReference, r.NodeType);
+  AssertEquals('#12a', 1, r.Depth);
+  // now advances to element node
+  r.Read;
+  AssertEquals('#13', ntElement, r.NodeType);
+  AssertEquals('#14', 2, r.Depth);
+end;
+
+procedure TXMLReaderTest.ResolveEntity;
+const
+  xml='<!DOCTYPE root [<!ELEMENT root (#PCDATA|foo)*>'+
+      '<!ENTITY ent "entity string">'+
+      '<!ENTITY ent2 "<foo/><foo/>">]>'+
+      '<root>&ent;&ent2;</root>';
+begin
+  DoTest(xml, @TestResolveEntity);
+end;
+
+procedure TXMLReaderTest.TestLineInfo(r: TXMLReader);
+var
+  aux: IXmlLineInfo;
+begin
+  if not Supports(r, IXmlLineInfo, aux) then
+    Exit;
+  AssertEquals('#1a', 0, aux.LineNumber);
+  AssertEquals('#1b', 0, aux.LinePosition);
+  r.MoveToContent;
+  AssertEquals('#2a', 1, aux.LineNumber);
+  AssertEquals('#2b', 2, aux.LinePosition);
+  r.Read;
+  AssertEquals('#3a', 1, aux.LineNumber);
+  AssertEquals('#3b', 7, aux.LinePosition);
+  r.Read;
+  r.Read;
+//  r.ReadOuterXml;
+  AssertEquals('#4a', 1, aux.LineNumber);
+  AssertEquals('#4b', 22, aux.LinePosition);
+  r.Read;
+  r.Read;
+//  r.ReadInnerXml;
+  AssertEquals('#5a', 1, aux.LineNumber);
+  AssertEquals('#5b', 34, aux.LinePosition);
+  r.Read;     { now at EOF }
+  AssertEquals('#6a', 1, aux.LineNumber);
+  AssertEquals('#6b', 38, aux.LinePosition);
+  r.Close;
+  AssertEquals('#7a', 0, aux.LineNumber);
+  AssertEquals('#7b', 0, aux.LinePosition);
+end;
+
+procedure TXMLReaderTest.LineInfo;
+begin
+  DoTest('<all><hello></hello><bug></bug></all>', @TestLineInfo);
+end;
+
+initialization
+  RegisterTest(TXMLReaderTest);
+
+end.

packages/fcl-xml/tests/readerunit.pp

@@ -0,0 +1,200 @@
+{**********************************************************************
+
+    This file is part of the Free Component Library (FCL)
+
+    fpcunit extensions for testing TXmlReader class
+    Copyright (c) 2008 by Sergei Gorelkin, sergei_gorelkin@mail.ru
+
+    See the file COPYING.FPC, included in this distribution,
+    for details about the copyright.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+ **********************************************************************}
+ 
+unit readerunit;
+{$mode objfpc}{$h+}
+
+interface
+
+uses Classes, SysUtils, fpcunit, xmlutils, XmlReader;
+
+type
+  TTestMethod = procedure(reader: TXMLReader) of object;
+
+  TXMLReaderTestBase = class(TTestCase)
+  protected
+    procedure AssertStartDocument(r: TXMLReader);
+    procedure AssertEndDocument(r: TXMLReader);
+    procedure AssertNode(const id: string;
+      r: TXMLReader; nodeType: TXMLNodeType;
+      depth: Integer;
+      const Name, Prefix, LocalName, nsURI, Value: XMLString;
+      attrCount: Integer);
+    procedure AssertNodeValues(id: string;
+      r: TXmlReader;
+      nodeType: TXmlNodeType;
+      depth: Integer;
+      const name, prefix, localName, nsURI, value: XMLString;
+      hasValue: Boolean;
+      attrCount: Integer;
+      hasAttributes: Boolean);
+    procedure AssertAttribute(r: TXMLReader;
+      const Name, Prefix, LocalName, nsURI, Value: XMLString);
+    procedure AssertEquals(const id: string; exp, act: TXMLReadState); overload;
+    procedure AssertEquals(exp, act: TXMLReadState); overload;
+    procedure AssertEquals(const id: string; exp, act: TXMLNodeType); overload;
+    procedure AssertEqualsW(const id: string; const exp, act: XMLString); overload;
+    procedure AssertEqualsW(const exp, act: XMLString); overload;
+    procedure AssertEquals(exp, act: TXMLNodeType); overload;
+    procedure AssertNull(const id: string; const ws: XMLString); overload;
+    procedure DoTest(const XmlData: string; method: TTestMethod);
+  end;
+
+implementation
+
+uses
+  xmltextreader;
+
+procedure TXMLReaderTestBase.AssertStartDocument(r: TXMLReader);
+begin
+  AssertEquals(r.ReadState, rsInitial);
+  AssertEquals(r.NodeType, ntNone);
+  AssertEquals(r.Depth, 0);
+  AssertFalse(r.EOF);
+end;
+
+procedure TXMLReaderTestBase.AssertEndDocument(r: TXMLReader);
+begin
+  AssertFalse ('could read', r.Read);
+  AssertEquals('NodeType is not ntNone', ntNone, r.NodeType);
+  AssertEquals('Depth is not 0', 0, r.Depth);
+  AssertEquals('ReadState is not rsEndOfFile', rsEndOfFile, r.ReadState);
+  AssertTrue('not EOF', r.EOF);
+  r.Close;
+  AssertEquals('ReadState is not rsClosed', rsClosed, r.ReadState);
+end;
+
+procedure TXMLReaderTestBase.AssertNode(const id: string;
+  r: TXMLReader; nodeType: TXMLNodeType;
+  depth: Integer;
+  const Name, Prefix, LocalName, nsURI, Value: XMLString;
+  attrCount: Integer);
+begin
+  AssertTrue(id+' Read() return value', r.Read);
+  AssertEquals(id+' ReadState', r.ReadState, rsInteractive);
+  AssertFalse(id+' not EOF', r.EOF);
+  AssertNodeValues(id, r,  nodeType, depth,
+    Name, Prefix, localName,
+    nsURI, Value, r.HasValue,
+    attrCount, attrCount > 0);
+end;
+
+procedure TXMLReaderTestBase.AssertNodeValues(id: string;
+  r: TXmlReader;
+  nodeType: TXmlNodeType;
+  depth: Integer;
+  const name, prefix, localName, nsURI, value: XMLString;
+  hasValue: Boolean;
+  attrCount: Integer;
+  hasAttributes: Boolean);
+begin
+  id := id + '(' + r.ClassName + ')';
+  AssertEquals(id+': NodeType', nodeType, r.NodeType);
+  AssertEqualsW(id+': name', name, r.Name);
+
+  AssertEqualsW(id+': prefix', prefix, r.Prefix);
+  AssertEqualsW(id+': localName', localName, r.LocalName);
+  AssertEqualsW(id+': namespaceURI', nsURI, r.NamespaceURI);
+  AssertEquals(id+': Depth', depth, r.Depth);
+  AssertEquals(id+': hasValue', hasValue, r.HasValue);
+  AssertEqualsW(id+': Value', value, r.Value);
+// TODO:  AssertEquals(id+': hasAttributes', hasAttributes, r.HasAttributes);
+  AssertEquals(id+': attributeCount', attrCount, r.AttributeCount);
+end;
+
+procedure TXMLReaderTestBase.AssertAttribute(r: TXMLReader; const Name, Prefix,
+  LocalName, nsURI, Value: XMLString);
+begin
+  AssertEqualsW('value2', value, r.GetAttribute(name));
+
+  if nsURI <> '' then
+  begin
+    AssertEqualsW('value3', value, r.GetAttribute(LocalName, nsURI));
+  end;
+end;
+
+procedure TXMLReaderTestBase.DoTest(const XmlData: string; method: TTestMethod);
+var
+  xtr: TXmlReader;
+  settings: TXMLReaderSettings;
+  inp: TXMLInputSource;
+begin
+  settings := TXMLReaderSettings.Create;
+  try
+    settings.PreserveWhiteSpace := True;
+    settings.Namespaces := True;
+    inp := TXMLInputSource.Create(XmlData);
+    try
+      xtr := TXmlTextReader.Create(inp,settings);
+      try
+        method(xtr);
+      finally
+        xtr.Free;
+      end;
+    finally
+      inp.Free;
+    end;
+  finally
+    settings.Free;
+  end;  
+  // here other TXMLReader descendants may be tested the same way...
+end;
+
+procedure TXMLReaderTestBase.AssertEquals(const id: string; exp, act: TXMLReadState);
+begin
+  if exp <> act then
+    Fail(id);
+end;
+
+procedure TXMLReaderTestBase.AssertEquals(exp, act: TXMLReadState);
+begin
+  AssertEquals('', exp, act);
+end;
+
+procedure TXMLReaderTestBase.AssertEqualsW(const id: string; const exp, act: XMLString);
+begin
+  AssertTrue(id + ComparisonMsg(exp, act), exp = act);
+end;
+
+procedure TXMLReaderTestBase.AssertEqualsW(const exp, act: XMLString);
+begin
+  AssertEqualsW('', exp, act);
+end;
+
+procedure TXMLReaderTestBase.AssertEquals(const id: string; exp, act: TXMLNodeType);
+var
+  exps,acts: string;
+begin
+  if exp <> act then
+  begin
+    Str(exp, exps);
+    Str(act, acts);
+    Fail(id+ComparisonMsg(exps,acts));
+  end;  
+end;
+
+procedure TXMLReaderTestBase.AssertEquals(exp, act: TXMLNodeType);
+begin
+  AssertEquals('', exp, act);
+end;
+
+procedure TXMLReaderTestBase.assertNull(const id: string; const ws: XMLString);
+begin
+  if ws <> '' then
+    Fail(id);
+end;
+
+end.