127 lines
6.3 KiB
Java
127 lines
6.3 KiB
Java
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.emailcommon.utility;
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import com.android.emailcommon.provider.EmailContent;
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import android.net.Uri;
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import android.test.AndroidTestCase;
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import android.test.suitebuilder.annotation.SmallTest;
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import java.io.File;
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@SmallTest
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public class AttachmentUtilitiesTests extends AndroidTestCase {
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/**
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* Test static inferMimeType()
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* From the method doc:
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*
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* <pre>
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* |---------------------------------------------------------|
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* | E X T E N S I O N |
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* |---------------------------------------------------------|
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* | .eml | known(.png) | unknown(.abc) | none |
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* | M |-----------------------------------------------------------------------|
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* | I | none | msg/rfc822 | image/png | app/abc | app/oct-str |
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* | M |-------------| (always | | | |
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* | E | app/oct-str | overrides | | | |
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* | T |-------------| | |-----------------------------|
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* | Y | text/plain | | | text/plain |
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* | P |-------------| |-------------------------------------------|
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* | E | any/type | | any/type |
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* |---|-----------------------------------------------------------------------|
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* </pre>
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*
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* Also, all results should be in lowercase.
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*/
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public void testInferMimeType() {
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final String DEFAULT_MIX = "Application/Octet-stream";
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final String DEFAULT_LOWER = DEFAULT_MIX.toLowerCase();
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final String TEXT_PLAIN = "text/plain";
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final String TYPE_IMG_PNG = "image/png";
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final String FILE_PNG = "myfile.false.pNg";
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final String FILE_ABC = "myfile.false.aBc";
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final String FILE_NO_EXT = "myfile";
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// .eml files always override mime type
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assertEquals("message/rfc822", AttachmentUtilities.inferMimeType("a.eml", null));
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assertEquals("message/rfc822", AttachmentUtilities.inferMimeType("a.eml", ""));
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assertEquals("message/rfc822",
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AttachmentUtilities.inferMimeType("a.eml", DEFAULT_LOWER));
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assertEquals("message/rfc822",
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AttachmentUtilities.inferMimeType("a.eMl", TEXT_PLAIN));
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assertEquals("message/rfc822",
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AttachmentUtilities.inferMimeType("a.eml", TYPE_IMG_PNG));
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// Non-generic, non-empty mime type; return it
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assertEquals("mime/type", AttachmentUtilities.inferMimeType(FILE_PNG, "Mime/TyPe"));
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assertEquals("mime/type", AttachmentUtilities.inferMimeType(FILE_ABC, "Mime/TyPe"));
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assertEquals("mime/type",
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AttachmentUtilities.inferMimeType(FILE_NO_EXT, "Mime/TyPe"));
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assertEquals("mime/type", AttachmentUtilities.inferMimeType(null, "Mime/TyPe"));
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assertEquals("mime/type", AttachmentUtilities.inferMimeType("", "Mime/TyPe"));
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// Recognizable file extension; return known type
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assertEquals("image/png", AttachmentUtilities.inferMimeType(FILE_PNG, null));
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assertEquals("image/png", AttachmentUtilities.inferMimeType(FILE_PNG, ""));
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assertEquals("image/png", AttachmentUtilities.inferMimeType(FILE_PNG, DEFAULT_MIX));
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assertEquals("image/png", AttachmentUtilities.inferMimeType(FILE_PNG, TEXT_PLAIN));
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// Unrecognized and non-empty file extension, non-"text/plain" type; generate mime type
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assertEquals("application/abc", AttachmentUtilities.inferMimeType(FILE_ABC, null));
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assertEquals("application/abc", AttachmentUtilities.inferMimeType(FILE_ABC, ""));
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assertEquals("application/abc",
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AttachmentUtilities.inferMimeType(FILE_ABC, DEFAULT_MIX));
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// Unrecognized and empty file extension, non-"text/plain" type; return "app/octet-stream"
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assertEquals(DEFAULT_LOWER, AttachmentUtilities.inferMimeType(FILE_NO_EXT, null));
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assertEquals(DEFAULT_LOWER, AttachmentUtilities.inferMimeType(FILE_NO_EXT, ""));
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assertEquals(DEFAULT_LOWER,
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AttachmentUtilities.inferMimeType(FILE_NO_EXT, DEFAULT_MIX));
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assertEquals(DEFAULT_LOWER, AttachmentUtilities.inferMimeType(null, null));
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assertEquals(DEFAULT_LOWER, AttachmentUtilities.inferMimeType("", ""));
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// Unrecognized or empty file extension, "text/plain" type; return "text/plain"
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assertEquals(TEXT_PLAIN, AttachmentUtilities.inferMimeType(FILE_ABC, TEXT_PLAIN));
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assertEquals(TEXT_PLAIN,
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AttachmentUtilities.inferMimeType(FILE_NO_EXT, TEXT_PLAIN));
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assertEquals(TEXT_PLAIN, AttachmentUtilities.inferMimeType(null, TEXT_PLAIN));
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assertEquals(TEXT_PLAIN, AttachmentUtilities.inferMimeType("", TEXT_PLAIN));
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}
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/**
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* Text extension extractor
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*/
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public void testGetFilenameExtension() {
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final String FILE_NO_EXTENSION = "myfile";
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final String FILE_EXTENSION = "myfile.pDf";
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final String FILE_TWO_EXTENSIONS = "myfile.false.AbC";
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assertNull(AttachmentUtilities.getFilenameExtension(null));
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assertNull(AttachmentUtilities.getFilenameExtension(""));
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assertNull(AttachmentUtilities.getFilenameExtension(FILE_NO_EXTENSION));
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assertEquals("pdf", AttachmentUtilities.getFilenameExtension(FILE_EXTENSION));
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assertEquals("abc", AttachmentUtilities.getFilenameExtension(FILE_TWO_EXTENSIONS));
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// The API makes no claim as to how these are handled (it probably should),
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// but make sure that they don't crash.
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AttachmentUtilities.getFilenameExtension("filename.");
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AttachmentUtilities.getFilenameExtension(".extension");
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}
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}
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