| /* ==================================================================== |
| 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 |
| |
| 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. |
| ==================================================================== */ |
| |
| package org.apache.poi.poifs.filesystem; |
| |
| import org.apache.commons.codec.Charsets; |
| import org.apache.poi.POIDataSamples; |
| import org.junit.Test; |
| |
| import java.io.BufferedInputStream; |
| import java.io.FileInputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| import static org.junit.Assert.*; |
| |
| public class TestFileMagic { |
| @Test |
| public void testFileMagic() { |
| assertEquals(FileMagic.XML, FileMagic.valueOf("XML")); |
| assertEquals(FileMagic.XML, FileMagic.valueOf("<?xml".getBytes(Charsets.UTF_8))); |
| |
| assertEquals(FileMagic.HTML, FileMagic.valueOf("HTML")); |
| assertEquals(FileMagic.HTML, FileMagic.valueOf("<!DOCTYP".getBytes(Charsets.UTF_8))); |
| assertEquals(FileMagic.HTML, FileMagic.valueOf("<!DOCTYPE".getBytes(Charsets.UTF_8))); |
| assertEquals(FileMagic.HTML, FileMagic.valueOf("<html".getBytes(Charsets.UTF_8))); |
| |
| try { |
| FileMagic.valueOf("some string"); |
| fail("Should catch exception here"); |
| } catch (IllegalArgumentException e) { |
| // expected here |
| } |
| } |
| |
| @Test |
| public void testFileMagicFile() throws IOException { |
| assertEquals(FileMagic.OLE2, FileMagic.valueOf(POIDataSamples.getSpreadSheetInstance().getFile("SampleSS.xls"))); |
| assertEquals(FileMagic.OOXML, FileMagic.valueOf(POIDataSamples.getSpreadSheetInstance().getFile("SampleSS.xlsx"))); |
| } |
| |
| @Test |
| public void testFileMagicStream() throws IOException { |
| try (InputStream stream = new BufferedInputStream(new FileInputStream(POIDataSamples.getSpreadSheetInstance().getFile("SampleSS.xls")))) { |
| assertEquals(FileMagic.OLE2, FileMagic.valueOf(stream)); |
| } |
| try (InputStream stream = new BufferedInputStream(new FileInputStream(POIDataSamples.getSpreadSheetInstance().getFile("SampleSS.xlsx")))) { |
| assertEquals(FileMagic.OOXML, FileMagic.valueOf(stream)); |
| } |
| } |
| |
| @Test |
| public void testPrepare() throws IOException { |
| try (InputStream stream = new BufferedInputStream(new FileInputStream(POIDataSamples.getSpreadSheetInstance().getFile("SampleSS.xlsx")))) { |
| assertSame(stream, FileMagic.prepareToCheckMagic(stream)); |
| } |
| |
| try (InputStream stream = new InputStream() { |
| @Override |
| public int read() { |
| return 0; |
| } |
| }) { |
| assertNotSame(stream, FileMagic.prepareToCheckMagic(stream)); |
| } |
| } |
| } |