Test for XmlWalker to check it parses the xml as expected

Change-Id: Icf6bc7eee09b469f460080b6937fad93de6dbd39
Reviewed-on: https://gerrit.libreoffice.org/66772
Tested-by: Jenkins
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>

tools/CppunitTest_tools_test.mk

@@ -28,6 +28,7 @@ $(eval $(call gb_CppunitTest_add_exception_objects,tools_test, \
     tools/qa/cppunit/test_minmax \
     tools/qa/cppunit/test_100mm2twips \
     tools/qa/cppunit/test_fround \
+    tools/qa/cppunit/test_xmlwalker \
 ))
 
 $(eval $(call gb_CppunitTest_use_sdk_api,tools_test))
@@ -35,6 +36,8 @@ $(eval $(call gb_CppunitTest_use_sdk_api,tools_test))
 $(eval $(call gb_CppunitTest_use_libraries,tools_test, \
     sal \
     tl \
+    test \
+    unotest \
 ))
 
 $(eval $(call gb_CppunitTest_use_static_libraries,tools_test, \
@@ -46,4 +49,8 @@ $(eval $(call gb_CppunitTest_set_include,tools_test,\
     -I$(SRCDIR)/tools/inc \
 ))
 
+$(eval $(call gb_Library_use_externals,tools_test,\
+	libxml2 \
+))
+
 # vim: set noet sw=4 ts=4:

tools/qa/cppunit/test_xmlwalker.cxx

+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <memory>
+#include <string>
+
+#include <sal/types.h>
+#include <cppunit/TestFixture.h>
+#include <cppunit/extensions/HelperMacros.h>
+#include <test/bootstrapfixture.hxx>
+#include <rtl/ustring.hxx>
+#include <tools/stream.hxx>
+#include <tools/XmlWalker.hxx>
+
+namespace
+{
+class XmlWalkerTest : public test::BootstrapFixture
+{
+    OUString maBasePath;
+
+public:
+    XmlWalkerTest()
+        : BootstrapFixture(true, false)
+    {
+    }
+
+    virtual void setUp() override { maBasePath = m_directories.getURLFromSrc("/tools/qa/data/"); }
+
+    void testReadXML();
+
+    CPPUNIT_TEST_SUITE(XmlWalkerTest);
+    CPPUNIT_TEST(testReadXML);
+    CPPUNIT_TEST_SUITE_END();
+};
+
+void XmlWalkerTest::testReadXML()
+{
+    OUString aXmlFilePath = maBasePath + "test.xml";
+
+    tools::XmlWalker aWalker;
+    SvFileStream aFileStream(aXmlFilePath, StreamMode::READ);
+    CPPUNIT_ASSERT(aWalker.open(&aFileStream));
+    CPPUNIT_ASSERT_EQUAL(OString("root"), aWalker.name());
+    CPPUNIT_ASSERT_EQUAL(OString("Hello World"), aWalker.attribute("root-attr"));
+
+    int nNumberOfChildNodes = 0;
+
+    aWalker.children();
+    while (aWalker.isValid())
+    {
+        if (aWalker.name() == "child")
+        {
+            nNumberOfChildNodes++;
+
+            CPPUNIT_ASSERT_EQUAL(OString::number(nNumberOfChildNodes), aWalker.attribute("number"));
+
+            if (nNumberOfChildNodes == 1) // only the first node has the attribute
+                CPPUNIT_ASSERT_EQUAL(OString("123"), aWalker.attribute("attribute"));
+            else
+                CPPUNIT_ASSERT_EQUAL(OString(), aWalker.attribute("attribute"));
+
+            aWalker.children();
+            while (aWalker.isValid())
+            {
+                if (aWalker.name() == "grandchild")
+                {
+                    CPPUNIT_ASSERT_EQUAL(OString("ABC"), aWalker.attribute("attribute1"));
+                    CPPUNIT_ASSERT_EQUAL(OString("CDE"), aWalker.attribute("attribute2"));
+                    CPPUNIT_ASSERT_EQUAL(OString("Content"), aWalker.content());
+                }
+                aWalker.next();
+            }
+            aWalker.parent();
+        }
+        aWalker.next();
+    }
+    aWalker.parent();
+
+    CPPUNIT_ASSERT_EQUAL(3, nNumberOfChildNodes);
+}
+
+CPPUNIT_TEST_SUITE_REGISTRATION(XmlWalkerTest);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */

tools/qa/data/test.xml

+<?xml version="1.0" encoding="UTF-8"?>
+
+<root root-attr="Hello World">
+    <child number="1" attribute="123">
+        <grandchild attribute1="ABC" attribute2="CDE">Content</grandchild>
+    </child>
+    <child number="2">
+    </child>
+    <child number="3">
+    </child>
+</root>