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diff --git a/editeng/qa/lookuptree/lookuptree_test.cxx b/editeng/qa/lookuptree/lookuptree_test.cxx
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+/* -*- 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/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you 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 .
+ */
+
+#include <sal/types.h>
+#include <cppunit/TestFixture.h>
+#include <cppunit/extensions/HelperMacros.h>
+#include <cppunit/plugin/TestPlugIn.h>
+
+#include <editeng/LookupTree.hxx>
+#include <editeng/LatinLookupTree.hxx>
+
+namespace {
+
+class LookupTreeTest : public CppUnit::TestFixture
+{
+ public:
+ void test();
+
+ CPPUNIT_TEST_SUITE(LookupTreeTest);
+ CPPUNIT_TEST(test);
+ CPPUNIT_TEST_SUITE_END();
+};
+
+CPPUNIT_TEST_SUITE_REGISTRATION(LookupTreeTest);
+
+void LookupTreeTest::test()
+{
+ LookupTree* a = new LatinLookupTree( "a" );
+
+ a->insert( OUString("vorschlagnummer1"), 2 );
+ a->insert( OUString("vorschlagnummer12") );
+ a->insert( OUString("vorschlagnummer2") );
+
+ CPPUNIT_ASSERT_EQUAL( OUString("vorschlagnummer1"), a->suggestAutoCompletion() );
+
+ a->insert( OUString("vorschlagnummer12") );
+ CPPUNIT_ASSERT_EQUAL( OUString("vorschlagnummer12"), a->suggestAutoCompletion() );
+
+ a->insert( OUString("vorschlagnummer2") );
+ a->insert( OUString("vorschlagnummer2") );
+ CPPUNIT_ASSERT_EQUAL( OUString("vorschlagnummer2"), a->suggestAutoCompletion() );
+
+ a->insert( OUString("vorschlag"), 15 );
+ CPPUNIT_ASSERT_EQUAL( OUString("vorschlag"), a->suggestAutoCompletion() );
+
+ a->insert( OUString("vorschlagnummer2"), 16 );
+ CPPUNIT_ASSERT_EQUAL( OUString("vorschlagnummer2"), a->suggestAutoCompletion() );
+
+ a->remove( OUString("vorschlagnummer2") );
+ CPPUNIT_ASSERT_EQUAL( OUString("vorschlag"), a->suggestAutoCompletion() );
+
+ a->insert( OUString("vorschlag20"), 20 );
+ CPPUNIT_ASSERT_EQUAL( OUString("vorschlag20"), a->suggestAutoCompletion() );
+
+ a->remove( OUString("vorschlag20") );
+ CPPUNIT_ASSERT_EQUAL( OUString("vorschlag"), a->suggestAutoCompletion() );
+
+ a->insert( OUString("vorschlagn"), 14 );
+ CPPUNIT_ASSERT_EQUAL( OUString("vorschlag"), a->suggestAutoCompletion() );
+
+ a->remove( OUString("vorschlag") );
+ CPPUNIT_ASSERT_EQUAL( OUString("vorschlagn"), a->suggestAutoCompletion() );
+
+ a->remove( OUString("vorschlagn") );
+ CPPUNIT_ASSERT_EQUAL( OUString("vorschlagnummer12"), a->suggestAutoCompletion() );
+
+ a->insert( OUString("aber"), 1 );
+ CPPUNIT_ASSERT_EQUAL( OUString("vorschlagnummer12"), a->suggestAutoCompletion() );
+
+ a->advance( 'a' );
+ CPPUNIT_ASSERT_EQUAL( OUString("ber"), a->suggestAutoCompletion() );
+
+ a->goBack();
+ CPPUNIT_ASSERT_EQUAL( OUString("vorschlagnummer12"), a->suggestAutoCompletion() );
+
+ a->insert( OUString("vorschlag"), 15 );
+ CPPUNIT_ASSERT_EQUAL( OUString("vorschlag"), a->suggestAutoCompletion() );
+
+ a->insert( OUString("vorschlag13"), 13 );
+ CPPUNIT_ASSERT_EQUAL( OUString("vorschlag"), a->suggestAutoCompletion() );
+
+ a->gotoNode( "vorsch" );
+ CPPUNIT_ASSERT_EQUAL( OUString("lag"), a->suggestAutoCompletion() );
+
+ a->advance( 'l' );
+ CPPUNIT_ASSERT_EQUAL( OUString("ag"), a->suggestAutoCompletion() );
+
+ a->advance( 'a' );
+ CPPUNIT_ASSERT_EQUAL( OUString("g13"), a->suggestAutoCompletion() );
+
+ a->advance( 'g' );
+ CPPUNIT_ASSERT_EQUAL( OUString("13"), a->suggestAutoCompletion() );
+
+ a->advance( '1' );
+ CPPUNIT_ASSERT_EQUAL( OUString("3"), a->suggestAutoCompletion() );
+
+ a->advance( '3' );
+ CPPUNIT_ASSERT ( a->suggestAutoCompletion().isEmpty() );
+
+ a->goBack();
+ a->advance( 'z' );
+ CPPUNIT_ASSERT ( a->suggestAutoCompletion().isEmpty() );
+
+ a->gotoNode( "vorschlag13" );
+ CPPUNIT_ASSERT ( a->suggestAutoCompletion().isEmpty() );
+
+ a->advance( 'g' );
+ a->advance( '1' );
+ a->advance( '3' );
+ a->remove( "vorschlag13" );
+ CPPUNIT_ASSERT_EQUAL( OUString(""), a->suggestAutoCompletion() );
+
+ a->insert( "VeraHatMichL1eb.", 1000000 );
+ a->returnToRoot();
+ CPPUNIT_ASSERT_EQUAL( OUString("VeraHatMichL1eb."), a->suggestAutoCompletion() );
+
+ a->gotoNode( "VeraHatMich" );
+ a->remove( "VeraHatMichL1eb." );
+ CPPUNIT_ASSERT_EQUAL( OUString(""), a->suggestAutoCompletion() );
+
+ a->returnToRoot();
+ CPPUNIT_ASSERT_EQUAL( OUString("vorschlag"), a->suggestAutoCompletion() );
+
+ a->gotoNode( "VeraLiebtMich" );
+ a->insert( 600 );
+ a->returnToRoot();
+ CPPUNIT_ASSERT_EQUAL( OUString("VeraLiebtMich"), a->suggestAutoCompletion() );
+
+ a->insert( "VeraHatMichL1eb.", 1000000 );
+ a->returnToRoot();
+ CPPUNIT_ASSERT_EQUAL( OUString("VeraHatMichL1eb."), a->suggestAutoCompletion() );
+
+ a->gotoNode( "VeraHatMich" );
+ a->remove( "VeraHatMichL1eb." );
+ CPPUNIT_ASSERT ( a->suggestAutoCompletion().isEmpty() );
+
+ a->advance( 'L' );
+ CPPUNIT_ASSERT ( a->suggestAutoCompletion().isEmpty() );
+
+ a->insert( "VeraHatMichL1eb.", 1000000 );
+ a->returnToRoot();
+ a->gotoNode( "VeraHatMich" );
+ a->remove( "VeraHatMichL1eb." );
+ CPPUNIT_ASSERT ( a->suggestAutoCompletion().isEmpty() );
+
+ a->goBack();
+ CPPUNIT_ASSERT ( a->suggestAutoCompletion().isEmpty() );
+
+ a->insert( "VeraHatMichL1eb.", 1000000 );
+ a->returnToRoot();
+ a->gotoNode( "VeraHatMich" );
+ a->remove( "VeraHatMichL1eb." );
+ CPPUNIT_ASSERT ( a->suggestAutoCompletion().isEmpty() );
+
+ a->goBack();
+ CPPUNIT_ASSERT ( a->suggestAutoCompletion().isEmpty() );
+
+ a->insert( "neu", 2000 );
+ a->returnToRoot();
+ CPPUNIT_ASSERT_EQUAL( OUString("neu"), a->suggestAutoCompletion() );
+
+ a->gotoNode( "ne" );
+ CPPUNIT_ASSERT_EQUAL( OUString("u"), a->suggestAutoCompletion() );
+
+ a->advance( sal_Unicode('u') );
+ a->advance( sal_Unicode('e') );
+ a->advance( sal_Unicode('r') );
+ a->insert();
+ CPPUNIT_ASSERT ( a->suggestAutoCompletion().isEmpty() );
+
+ a->returnToRoot();
+ CPPUNIT_ASSERT_EQUAL( OUString("neu"), a->suggestAutoCompletion() );
+
+ a->advance( 'n' );
+ CPPUNIT_ASSERT_EQUAL( OUString("eu"), a->suggestAutoCompletion() );
+
+ a->advance( 'e' );
+ CPPUNIT_ASSERT_EQUAL( OUString("uer"), a->suggestAutoCompletion() );
+
+ // Test unicode
+ OUString aQueryString = rtl::OStringToOUString( "H\xC3\xA4llo", RTL_TEXTENCODING_UTF8 );
+ a->insert( aQueryString );
+ a->returnToRoot();
+ a->advance( sal_Unicode('H') );
+
+ OUString aAutocompletedString = a->suggestAutoCompletion();
+ OUString aExpectedString = rtl::OStringToOUString( "\xC3\xA4llo", RTL_TEXTENCODING_UTF8 );
+
+ CPPUNIT_ASSERT_EQUAL( aExpectedString, aAutocompletedString );
+
+ OString aUtf8String( "\xe3\x81\x82\xe3\x81\x97\xe3\x81\x9f" );
+ aQueryString = rtl::OStringToOUString( aUtf8String, RTL_TEXTENCODING_UTF8 );
+ a->insert( aQueryString );
+
+ OUString aGotoString = rtl::OStringToOUString( "\xe3\x81\x82", RTL_TEXTENCODING_UTF8 );
+ a->gotoNode( aGotoString );
+
+ aAutocompletedString = a->suggestAutoCompletion();
+ aExpectedString = rtl::OStringToOUString( "\xe3\x81\x97\xe3\x81\x9f", RTL_TEXTENCODING_UTF8 );
+ CPPUNIT_ASSERT_EQUAL( aExpectedString, aAutocompletedString );
+
+ delete a;
+}
+
+} // namespace end
+
+CPPUNIT_PLUGIN_IMPLEMENT();
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */