176f614720db6a282c3e890969a600585122cdcc5Marc Blank/* 276f614720db6a282c3e890969a600585122cdcc5Marc Blank * Copyright (C) 2010 The Android Open Source Project 376f614720db6a282c3e890969a600585122cdcc5Marc Blank * 476f614720db6a282c3e890969a600585122cdcc5Marc Blank * Licensed under the Apache License, Version 2.0 (the "License"); 576f614720db6a282c3e890969a600585122cdcc5Marc Blank * you may not use this file except in compliance with the License. 676f614720db6a282c3e890969a600585122cdcc5Marc Blank * You may obtain a copy of the License at 776f614720db6a282c3e890969a600585122cdcc5Marc Blank * 876f614720db6a282c3e890969a600585122cdcc5Marc Blank * http://www.apache.org/licenses/LICENSE-2.0 976f614720db6a282c3e890969a600585122cdcc5Marc Blank * 1076f614720db6a282c3e890969a600585122cdcc5Marc Blank * Unless required by applicable law or agreed to in writing, software 1176f614720db6a282c3e890969a600585122cdcc5Marc Blank * distributed under the License is distributed on an "AS IS" BASIS, 1276f614720db6a282c3e890969a600585122cdcc5Marc Blank * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1376f614720db6a282c3e890969a600585122cdcc5Marc Blank * See the License for the specific language governing permissions and 1476f614720db6a282c3e890969a600585122cdcc5Marc Blank * limitations under the License. 1576f614720db6a282c3e890969a600585122cdcc5Marc Blank */ 1676f614720db6a282c3e890969a600585122cdcc5Marc Blank 1776f614720db6a282c3e890969a600585122cdcc5Marc Blank/** 1876f614720db6a282c3e890969a600585122cdcc5Marc Blank * This is a series of unit tests for snippet creation and highlighting 1976f614720db6a282c3e890969a600585122cdcc5Marc Blank * 2076f614720db6a282c3e890969a600585122cdcc5Marc Blank * You can run this entire test case with: 2176f614720db6a282c3e890969a600585122cdcc5Marc Blank * runtest -c com.android.emailcommon.utility.TextUtilitiesTests email 2276f614720db6a282c3e890969a600585122cdcc5Marc Blank */ 2376f614720db6a282c3e890969a600585122cdcc5Marc Blankpackage com.android.emailcommon.utility; 2476f614720db6a282c3e890969a600585122cdcc5Marc Blank 2576f614720db6a282c3e890969a600585122cdcc5Marc Blankimport android.test.AndroidTestCase; 2676f614720db6a282c3e890969a600585122cdcc5Marc Blankimport android.text.SpannableStringBuilder; 2776f614720db6a282c3e890969a600585122cdcc5Marc Blankimport android.text.style.BackgroundColorSpan; 2876f614720db6a282c3e890969a600585122cdcc5Marc Blank 2976f614720db6a282c3e890969a600585122cdcc5Marc Blankpublic class TextUtilitiesTests extends AndroidTestCase { 3076f614720db6a282c3e890969a600585122cdcc5Marc Blank 3176f614720db6a282c3e890969a600585122cdcc5Marc Blank public void testPlainSnippet() { 3276f614720db6a282c3e890969a600585122cdcc5Marc Blank // Test the simplest cases 3376f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals("", TextUtilities.makeSnippetFromPlainText(null)); 3476f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals("", TextUtilities.makeSnippetFromPlainText("")); 3576f614720db6a282c3e890969a600585122cdcc5Marc Blank 3676f614720db6a282c3e890969a600585122cdcc5Marc Blank // Test handling leading, trailing, and duplicated whitespace 3776f614720db6a282c3e890969a600585122cdcc5Marc Blank // Just test common whitespace characters; we calls Character.isWhitespace() internally, so 3876f614720db6a282c3e890969a600585122cdcc5Marc Blank // other whitespace should be fine as well 3976f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals("", TextUtilities.makeSnippetFromPlainText(" \n\r\t\r\t\n")); 4076f614720db6a282c3e890969a600585122cdcc5Marc Blank char c = TextUtilities.NON_BREAKING_SPACE_CHARACTER; 4176f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals("foo", TextUtilities.makeSnippetFromPlainText(c + "\r\n\tfoo \n\t\r" + c)); 4276f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals("foo bar", 4376f614720db6a282c3e890969a600585122cdcc5Marc Blank TextUtilities.makeSnippetFromPlainText(c + "\r\n\tfoo \r\n bar\n\t\r" + c)); 4476f614720db6a282c3e890969a600585122cdcc5Marc Blank 4576f614720db6a282c3e890969a600585122cdcc5Marc Blank // Handle duplicated - and = 4676f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals("Foo-Bar=Bletch", 4776f614720db6a282c3e890969a600585122cdcc5Marc Blank TextUtilities.makeSnippetFromPlainText("Foo-----Bar=======Bletch")); 4876f614720db6a282c3e890969a600585122cdcc5Marc Blank 4976f614720db6a282c3e890969a600585122cdcc5Marc Blank // We shouldn't muck with HTML entities 5076f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(" >", TextUtilities.makeSnippetFromPlainText(" >")); 5176f614720db6a282c3e890969a600585122cdcc5Marc Blank } 5276f614720db6a282c3e890969a600585122cdcc5Marc Blank 5376f614720db6a282c3e890969a600585122cdcc5Marc Blank public void testHtmlSnippet() { 5476f614720db6a282c3e890969a600585122cdcc5Marc Blank // Test the simplest cases 5576f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals("", TextUtilities.makeSnippetFromHtmlText(null)); 5676f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals("", TextUtilities.makeSnippetFromHtmlText("")); 5776f614720db6a282c3e890969a600585122cdcc5Marc Blank 5876f614720db6a282c3e890969a600585122cdcc5Marc Blank // Test handling leading, trailing, and duplicated whitespace 5976f614720db6a282c3e890969a600585122cdcc5Marc Blank // Just test common whitespace characters; we calls Character.isWhitespace() internally, so 6076f614720db6a282c3e890969a600585122cdcc5Marc Blank // other whitespace should be fine as well 6176f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals("", TextUtilities.makeSnippetFromHtmlText(" \n\r\t\r\t\n")); 6276f614720db6a282c3e890969a600585122cdcc5Marc Blank char c = TextUtilities.NON_BREAKING_SPACE_CHARACTER; 6376f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals("foo", TextUtilities.makeSnippetFromHtmlText(c + "\r\n\tfoo \n\t\r" + c)); 6476f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals("foo bar", 6576f614720db6a282c3e890969a600585122cdcc5Marc Blank TextUtilities.makeSnippetFromHtmlText(c + "\r\n\tfoo \r\n bar\n\t\r" + c)); 6676f614720db6a282c3e890969a600585122cdcc5Marc Blank 6776f614720db6a282c3e890969a600585122cdcc5Marc Blank // Handle duplicated - and = 6876f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals("Foo-Bar=Bletch", 6976f614720db6a282c3e890969a600585122cdcc5Marc Blank TextUtilities.makeSnippetFromPlainText("Foo-----Bar=======Bletch")); 7076f614720db6a282c3e890969a600585122cdcc5Marc Blank 7176f614720db6a282c3e890969a600585122cdcc5Marc Blank // We should catch HTML entities in these tests 7276f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(">", TextUtilities.makeSnippetFromHtmlText(" >")); 7376f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals("&<> \"", TextUtilities.makeSnippetFromHtmlText("&<> "")); 7476f614720db6a282c3e890969a600585122cdcc5Marc Blank // Test for decimal and hex entities 7576f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals("ABC", TextUtilities.makeSnippetFromHtmlText("ABC")); 7676f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals("ABC", TextUtilities.makeSnippetFromHtmlText("ABC")); 7776f614720db6a282c3e890969a600585122cdcc5Marc Blank 7876f614720db6a282c3e890969a600585122cdcc5Marc Blank // Test for stripping simple tags 7976f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals("Hi there", TextUtilities.makeSnippetFromHtmlText("<html>Hi there</html>")); 8076f614720db6a282c3e890969a600585122cdcc5Marc Blank // TODO: Add tests here if/when we find problematic HTML 8176f614720db6a282c3e890969a600585122cdcc5Marc Blank } 8276f614720db6a282c3e890969a600585122cdcc5Marc Blank 8376f614720db6a282c3e890969a600585122cdcc5Marc Blank public void testStripHtmlEntityEdgeCases() { 8476f614720db6a282c3e890969a600585122cdcc5Marc Blank int[] skipCount = new int[1]; 8576f614720db6a282c3e890969a600585122cdcc5Marc Blank // Bare & isn't an entity 8676f614720db6a282c3e890969a600585122cdcc5Marc Blank char c = TextUtilities.stripHtmlEntity("&", 0, skipCount); 8776f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(c, '&'); 8876f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(0, skipCount[0]); 8976f614720db6a282c3e890969a600585122cdcc5Marc Blank // Also not legal 9076f614720db6a282c3e890969a600585122cdcc5Marc Blank c = TextUtilities.stripHtmlEntity("&;", 0, skipCount); 9176f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(c, '&'); 9276f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(0, skipCount[0]); 9376f614720db6a282c3e890969a600585122cdcc5Marc Blank // This is an entity, but shouldn't be found 9476f614720db6a282c3e890969a600585122cdcc5Marc Blank c = TextUtilities.stripHtmlEntity("&nosuch;", 0, skipCount); 9576f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(c, '&'); 9676f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(0, skipCount[0]); 9776f614720db6a282c3e890969a600585122cdcc5Marc Blank // This is too long for an entity, even though it starts like a valid one 9876f614720db6a282c3e890969a600585122cdcc5Marc Blank c = TextUtilities.stripHtmlEntity(" andmore;", 0, skipCount); 9976f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(c, '&'); 10076f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(0, skipCount[0]); 10176f614720db6a282c3e890969a600585122cdcc5Marc Blank // Illegal decimal entities 10276f614720db6a282c3e890969a600585122cdcc5Marc Blank c = TextUtilities.stripHtmlEntity("&#ABC", 0, skipCount); 10376f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(c, '&'); 10476f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(0, skipCount[0]); 10576f614720db6a282c3e890969a600585122cdcc5Marc Blank c = TextUtilities.stripHtmlEntity("B", 0, skipCount); 10676f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(c, '&'); 10776f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(0, skipCount[0]); 10876f614720db6a282c3e890969a600585122cdcc5Marc Blank // Illegal hex entities 10976f614720db6a282c3e890969a600585122cdcc5Marc Blank c = TextUtilities.stripHtmlEntity("઼", 0, skipCount); 11076f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(c, '&'); 11176f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(0, skipCount[0]); 11276f614720db6a282c3e890969a600585122cdcc5Marc Blank // Illegal hex entities 11376f614720db6a282c3e890969a600585122cdcc5Marc Blank c = TextUtilities.stripHtmlEntity("G", 0, skipCount); 11476f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(c, '&'); 11576f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(0, skipCount[0]); 11676f614720db6a282c3e890969a600585122cdcc5Marc Blank } 11776f614720db6a282c3e890969a600585122cdcc5Marc Blank 11876f614720db6a282c3e890969a600585122cdcc5Marc Blank public void testStripContent() { 11976f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals("Visible", TextUtilities.makeSnippetFromHtmlText( 12076f614720db6a282c3e890969a600585122cdcc5Marc Blank "<html><style foo=\"bar\">Not</style>Visible</html>")); 12176f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals("Visible", TextUtilities.makeSnippetFromHtmlText( 12276f614720db6a282c3e890969a600585122cdcc5Marc Blank "<html><STYLE foo=\"bar\">Not</STYLE>Visible</html>")); 12376f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals("IsVisible", TextUtilities.makeSnippetFromHtmlText( 12476f614720db6a282c3e890969a600585122cdcc5Marc Blank "<html><nostrip foo=\"bar\">Is</nostrip>Visible</html>")); 12576f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals("Visible", TextUtilities.makeSnippetFromHtmlText( 12676f614720db6a282c3e890969a600585122cdcc5Marc Blank "<html>Visible<style foo=\"bar\">Not")); 12776f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals("VisibleAgainVisible", TextUtilities.makeSnippetFromHtmlText( 12876f614720db6a282c3e890969a600585122cdcc5Marc Blank "<html>Visible<style foo=\"bar\">Not</style>AgainVisible")); 12976f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals("VisibleAgainVisible", TextUtilities.makeSnippetFromHtmlText( 13076f614720db6a282c3e890969a600585122cdcc5Marc Blank "<html>Visible<style foo=\"bar\"/>AgainVisible")); 13176f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals("VisibleAgainVisible", TextUtilities.makeSnippetFromHtmlText( 13276f614720db6a282c3e890969a600585122cdcc5Marc Blank "<html>Visible<style foo=\"bar\"/><head><//blah<style>Not</head>AgainVisible")); 13376f614720db6a282c3e890969a600585122cdcc5Marc Blank } 13476f614720db6a282c3e890969a600585122cdcc5Marc Blank 13576f614720db6a282c3e890969a600585122cdcc5Marc Blank /** 13676f614720db6a282c3e890969a600585122cdcc5Marc Blank * We pass in HTML text in which an ampersand (@) is two chars ahead of the correct end position 13776f614720db6a282c3e890969a600585122cdcc5Marc Blank * for the tag named 'tag' and then check whether the calculated end position matches the known 13876f614720db6a282c3e890969a600585122cdcc5Marc Blank * correct position. HTML text not containing an ampersand should generate a calculated end of 13976f614720db6a282c3e890969a600585122cdcc5Marc Blank * -1 14076f614720db6a282c3e890969a600585122cdcc5Marc Blank * @param text the HTML text to test 14176f614720db6a282c3e890969a600585122cdcc5Marc Blank */ 14276f614720db6a282c3e890969a600585122cdcc5Marc Blank private void findTagEnd(String text, String tag) { 14376f614720db6a282c3e890969a600585122cdcc5Marc Blank int calculatedEnd = TextUtilities.findTagEnd(text , tag, 0); 14476f614720db6a282c3e890969a600585122cdcc5Marc Blank int knownEnd = text.indexOf('@') + 2; 14576f614720db6a282c3e890969a600585122cdcc5Marc Blank if (knownEnd == 1) { 14676f614720db6a282c3e890969a600585122cdcc5Marc Blank // indexOf will return -1, so we'll get 1 as knownEnd 14776f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(-1, calculatedEnd); 14876f614720db6a282c3e890969a600585122cdcc5Marc Blank } else { 14976f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(calculatedEnd, knownEnd); 15076f614720db6a282c3e890969a600585122cdcc5Marc Blank } 15176f614720db6a282c3e890969a600585122cdcc5Marc Blank } 15276f614720db6a282c3e890969a600585122cdcc5Marc Blank 15376f614720db6a282c3e890969a600585122cdcc5Marc Blank public void testFindTagEnd() { 15476f614720db6a282c3e890969a600585122cdcc5Marc Blank // Test with <tag ... /> 15576f614720db6a282c3e890969a600585122cdcc5Marc Blank findTagEnd("<tag foo=\"bar\"@ /> <blah blah>", "tag"); 15676f614720db6a282c3e890969a600585122cdcc5Marc Blank // Test with <tag ...> ... </tag> 15776f614720db6a282c3e890969a600585122cdcc5Marc Blank findTagEnd("<tag foo=\"bar\">some text@</tag>some more text", "tag"); 15876f614720db6a282c3e890969a600585122cdcc5Marc Blank // Test with incomplete tag 15976f614720db6a282c3e890969a600585122cdcc5Marc Blank findTagEnd("<tag foo=\"bar\">some more text but no end tag", "tag"); 16076f614720db6a282c3e890969a600585122cdcc5Marc Blank // Test with space at end of tag 16176f614720db6a282c3e890969a600585122cdcc5Marc Blank findTagEnd("<tag foo=\"bar\">some more text but no end tag", "tag "); 16276f614720db6a282c3e890969a600585122cdcc5Marc Blank } 16376f614720db6a282c3e890969a600585122cdcc5Marc Blank 16476f614720db6a282c3e890969a600585122cdcc5Marc Blank private void assertHighlightUnchanged(String str) { 16576f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(str, TextUtilities.highlightTermsInHtml(str, null)); 16676f614720db6a282c3e890969a600585122cdcc5Marc Blank } 16776f614720db6a282c3e890969a600585122cdcc5Marc Blank 16876f614720db6a282c3e890969a600585122cdcc5Marc Blank public void testHighlightNoTerm() { 16976f614720db6a282c3e890969a600585122cdcc5Marc Blank // With no search terms, the html should be unchanged 17076f614720db6a282c3e890969a600585122cdcc5Marc Blank assertHighlightUnchanged("<html><style foo=\"bar\">Not</style>Visible</html>"); 17176f614720db6a282c3e890969a600585122cdcc5Marc Blank assertHighlightUnchanged("<html><nostrip foo=\"bar\">Is</nostrip>Visible</html>"); 17276f614720db6a282c3e890969a600585122cdcc5Marc Blank assertHighlightUnchanged("<html>Visible<style foo=\"bar\">Not"); 17376f614720db6a282c3e890969a600585122cdcc5Marc Blank assertHighlightUnchanged("<html>Visible<style foo=\"bar\">Not</style>AgainVisible"); 17476f614720db6a282c3e890969a600585122cdcc5Marc Blank assertHighlightUnchanged("<html>Visible<style foo=\"bar\"/>AgainVisible"); 17576f614720db6a282c3e890969a600585122cdcc5Marc Blank assertHighlightUnchanged( 17676f614720db6a282c3e890969a600585122cdcc5Marc Blank "<html>Visible<style foo=\"bar\"/><head><//blah<style>Not</head>AgainVisible"); 17776f614720db6a282c3e890969a600585122cdcc5Marc Blank } 17876f614720db6a282c3e890969a600585122cdcc5Marc Blank 17976f614720db6a282c3e890969a600585122cdcc5Marc Blank public void testHighlightSingleTermHtml() { 18076f614720db6a282c3e890969a600585122cdcc5Marc Blank String str = "<html><style foo=\"bar\">Not</style>Visible</html>"; 18176f614720db6a282c3e890969a600585122cdcc5Marc Blank // Test that tags aren't highlighted 18276f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(str, TextUtilities.highlightTermsInHtml( 18376f614720db6a282c3e890969a600585122cdcc5Marc Blank "<html><style foo=\"bar\">Not</style>Visible</html>", "style")); 18476f614720db6a282c3e890969a600585122cdcc5Marc Blank // Test that non-tags are 18576f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals("<html><style foo=\"bar\">Not</style><span " + 18676f614720db6a282c3e890969a600585122cdcc5Marc Blank "style=\"background-color: " + TextUtilities.HIGHLIGHT_COLOR_STRING + 18776f614720db6a282c3e890969a600585122cdcc5Marc Blank "\">Visi</span>ble</html>", 18876f614720db6a282c3e890969a600585122cdcc5Marc Blank TextUtilities.highlightTermsInHtml(str, "Visi")); 18976f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals("<html>Visible<style foo=\"bar\">Not</style>A<span" + 19076f614720db6a282c3e890969a600585122cdcc5Marc Blank " style=\"background-color: " + TextUtilities.HIGHLIGHT_COLOR_STRING + 19176f614720db6a282c3e890969a600585122cdcc5Marc Blank "\">gain</span>Visible", 19276f614720db6a282c3e890969a600585122cdcc5Marc Blank TextUtilities.highlightTermsInHtml( 19376f614720db6a282c3e890969a600585122cdcc5Marc Blank "<html>Visible<style foo=\"bar\">Not</style>AgainVisible", "gain")); 19476f614720db6a282c3e890969a600585122cdcc5Marc Blank } 19576f614720db6a282c3e890969a600585122cdcc5Marc Blank 19676f614720db6a282c3e890969a600585122cdcc5Marc Blank public void testHighlightSingleTermText() { 19776f614720db6a282c3e890969a600585122cdcc5Marc Blank // Sprinkle text with a few HTML characters to make sure they're ignored 19876f614720db6a282c3e890969a600585122cdcc5Marc Blank String text = "This< should be visibl>e"; 19976f614720db6a282c3e890969a600585122cdcc5Marc Blank // We should find this, because search terms are case insensitive 20076f614720db6a282c3e890969a600585122cdcc5Marc Blank SpannableStringBuilder ssb = 20176f614720db6a282c3e890969a600585122cdcc5Marc Blank (SpannableStringBuilder)TextUtilities.highlightTermsInText(text, "Visi"); 20276f614720db6a282c3e890969a600585122cdcc5Marc Blank BackgroundColorSpan[] spans = ssb.getSpans(0, ssb.length(), BackgroundColorSpan.class); 20376f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(1, spans.length); 20476f614720db6a282c3e890969a600585122cdcc5Marc Blank BackgroundColorSpan span = spans[0]; 20576f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(text.indexOf("visi"), ssb.getSpanStart(span)); 20676f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(text.indexOf("bl>e"), ssb.getSpanEnd(span)); 20776f614720db6a282c3e890969a600585122cdcc5Marc Blank // Heh; this next test fails.. we use the search term! 20876f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(text, ssb.toString()); 20976f614720db6a282c3e890969a600585122cdcc5Marc Blank 21076f614720db6a282c3e890969a600585122cdcc5Marc Blank // Multiple instances of the term 21176f614720db6a282c3e890969a600585122cdcc5Marc Blank text = "The research word should be a search result"; 21276f614720db6a282c3e890969a600585122cdcc5Marc Blank ssb = (SpannableStringBuilder)TextUtilities.highlightTermsInText(text, "Search"); 21376f614720db6a282c3e890969a600585122cdcc5Marc Blank spans = ssb.getSpans(0, ssb.length(), BackgroundColorSpan.class); 21476f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(2, spans.length); 21576f614720db6a282c3e890969a600585122cdcc5Marc Blank span = spans[0]; 21676f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(text.indexOf("search word"), ssb.getSpanStart(span)); 21776f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(text.indexOf(" word"), ssb.getSpanEnd(span)); 21876f614720db6a282c3e890969a600585122cdcc5Marc Blank span = spans[1]; 21976f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(text.indexOf("search result"), ssb.getSpanStart(span)); 22076f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(text.indexOf(" result"), ssb.getSpanEnd(span)); 22176f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(text, ssb.toString()); 22276f614720db6a282c3e890969a600585122cdcc5Marc Blank } 22376f614720db6a282c3e890969a600585122cdcc5Marc Blank 22476f614720db6a282c3e890969a600585122cdcc5Marc Blank public void testHighlightTwoTermText() { 22576f614720db6a282c3e890969a600585122cdcc5Marc Blank String text = "This should be visible"; 22676f614720db6a282c3e890969a600585122cdcc5Marc Blank // We should find this, because search terms are case insensitive 22776f614720db6a282c3e890969a600585122cdcc5Marc Blank SpannableStringBuilder ssb = 22876f614720db6a282c3e890969a600585122cdcc5Marc Blank (SpannableStringBuilder)TextUtilities.highlightTermsInText(text, "visi should"); 22976f614720db6a282c3e890969a600585122cdcc5Marc Blank BackgroundColorSpan[] spans = ssb.getSpans(0, ssb.length(), BackgroundColorSpan.class); 23076f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(2, spans.length); 23176f614720db6a282c3e890969a600585122cdcc5Marc Blank BackgroundColorSpan span = spans[0]; 23276f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(text.indexOf("should"), ssb.getSpanStart(span)); 23376f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(text.indexOf(" be"), ssb.getSpanEnd(span)); 23476f614720db6a282c3e890969a600585122cdcc5Marc Blank span = spans[1]; 23576f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(text.indexOf("visi"), ssb.getSpanStart(span)); 23676f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(text.indexOf("ble"), ssb.getSpanEnd(span)); 23776f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(text, ssb.toString()); 23876f614720db6a282c3e890969a600585122cdcc5Marc Blank } 23976f614720db6a282c3e890969a600585122cdcc5Marc Blank 24076f614720db6a282c3e890969a600585122cdcc5Marc Blank public void testHighlightDuplicateTermText() { 24176f614720db6a282c3e890969a600585122cdcc5Marc Blank String text = "This should be visible"; 24276f614720db6a282c3e890969a600585122cdcc5Marc Blank // We should find this, because search terms are case insensitive 24376f614720db6a282c3e890969a600585122cdcc5Marc Blank SpannableStringBuilder ssb = 24476f614720db6a282c3e890969a600585122cdcc5Marc Blank (SpannableStringBuilder)TextUtilities.highlightTermsInText(text, "should should"); 24576f614720db6a282c3e890969a600585122cdcc5Marc Blank BackgroundColorSpan[] spans = ssb.getSpans(0, ssb.length(), BackgroundColorSpan.class); 24676f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(1, spans.length); 24776f614720db6a282c3e890969a600585122cdcc5Marc Blank BackgroundColorSpan span = spans[0]; 24876f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(text.indexOf("should"), ssb.getSpanStart(span)); 24976f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(text.indexOf(" be"), ssb.getSpanEnd(span)); 25076f614720db6a282c3e890969a600585122cdcc5Marc Blank } 25176f614720db6a282c3e890969a600585122cdcc5Marc Blank 25276f614720db6a282c3e890969a600585122cdcc5Marc Blank public void testHighlightOverlapTermText() { 25376f614720db6a282c3e890969a600585122cdcc5Marc Blank String text = "This shoulder is visible"; 25476f614720db6a282c3e890969a600585122cdcc5Marc Blank // We should find this, because search terms are case insensitive 25576f614720db6a282c3e890969a600585122cdcc5Marc Blank SpannableStringBuilder ssb = 25676f614720db6a282c3e890969a600585122cdcc5Marc Blank (SpannableStringBuilder)TextUtilities.highlightTermsInText(text, "should ould"); 25776f614720db6a282c3e890969a600585122cdcc5Marc Blank BackgroundColorSpan[] spans = ssb.getSpans(0, ssb.length(), BackgroundColorSpan.class); 25876f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(1, spans.length); 25976f614720db6a282c3e890969a600585122cdcc5Marc Blank BackgroundColorSpan span = spans[0]; 26076f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(text.indexOf("should"), ssb.getSpanStart(span)); 26176f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(text.indexOf("er is"), ssb.getSpanEnd(span)); 26276f614720db6a282c3e890969a600585122cdcc5Marc Blank } 26376f614720db6a282c3e890969a600585122cdcc5Marc Blank 26476f614720db6a282c3e890969a600585122cdcc5Marc Blank 26576f614720db6a282c3e890969a600585122cdcc5Marc Blank public void testHighlightOverlapTermText2() { 26676f614720db6a282c3e890969a600585122cdcc5Marc Blank String text = "The shoulders are visible"; 26776f614720db6a282c3e890969a600585122cdcc5Marc Blank // We should find this, because search terms are case insensitive 26876f614720db6a282c3e890969a600585122cdcc5Marc Blank SpannableStringBuilder ssb = 26976f614720db6a282c3e890969a600585122cdcc5Marc Blank (SpannableStringBuilder)TextUtilities.highlightTermsInText(text, "shoulder shoulders"); 27076f614720db6a282c3e890969a600585122cdcc5Marc Blank BackgroundColorSpan[] spans = ssb.getSpans(0, ssb.length(), BackgroundColorSpan.class); 27176f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(2, spans.length); 27276f614720db6a282c3e890969a600585122cdcc5Marc Blank BackgroundColorSpan span = spans[0]; 27376f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(text.indexOf("shoulder"), ssb.getSpanStart(span)); 27476f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(text.indexOf("s are visible"), ssb.getSpanEnd(span)); 27576f614720db6a282c3e890969a600585122cdcc5Marc Blank span = spans[1]; 27676f614720db6a282c3e890969a600585122cdcc5Marc Blank // Just the 's' should be caught in the 2nd span 27776f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(text.indexOf("s are visible"), ssb.getSpanStart(span)); 27876f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(text.indexOf(" are visible"), ssb.getSpanEnd(span)); 27976f614720db6a282c3e890969a600585122cdcc5Marc Blank assertEquals(text, ssb.toString()); 28076f614720db6a282c3e890969a600585122cdcc5Marc Blank } 28176f614720db6a282c3e890969a600585122cdcc5Marc Blank // For debugging large HTML samples 28276f614720db6a282c3e890969a600585122cdcc5Marc Blank 28376f614720db6a282c3e890969a600585122cdcc5Marc Blank// private String readLargeSnippet(String fn) { 28476f614720db6a282c3e890969a600585122cdcc5Marc Blank// File file = mContext.getFileStreamPath(fn); 28576f614720db6a282c3e890969a600585122cdcc5Marc Blank// StringBuffer sb = new StringBuffer(); 28676f614720db6a282c3e890969a600585122cdcc5Marc Blank// BufferedReader reader = null; 28776f614720db6a282c3e890969a600585122cdcc5Marc Blank// try { 28876f614720db6a282c3e890969a600585122cdcc5Marc Blank// String text; 28976f614720db6a282c3e890969a600585122cdcc5Marc Blank// reader = new BufferedReader(new FileReader(file)); 29076f614720db6a282c3e890969a600585122cdcc5Marc Blank// while ((text = reader.readLine()) != null) { 29176f614720db6a282c3e890969a600585122cdcc5Marc Blank// sb.append(text); 29276f614720db6a282c3e890969a600585122cdcc5Marc Blank// sb.append(" "); 29376f614720db6a282c3e890969a600585122cdcc5Marc Blank// } 29476f614720db6a282c3e890969a600585122cdcc5Marc Blank// } catch (IOException e) { 29576f614720db6a282c3e890969a600585122cdcc5Marc Blank// } 29676f614720db6a282c3e890969a600585122cdcc5Marc Blank// return sb.toString(); 29776f614720db6a282c3e890969a600585122cdcc5Marc Blank// } 29876f614720db6a282c3e890969a600585122cdcc5Marc Blank } 299