packages/DocumentsUI/tests/src/com/android/documentsui/model/DocumentInfoTest.java

/*
 * Copyright (C) 2015 The Android Open Source Project
 *
 * Licensed 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 com.android.documentsui.model;

import android.test.AndroidTestCase;
import android.test.suitebuilder.annotation.SmallTest;

@SmallTest
public class DocumentInfoTest extends AndroidTestCase {

    private static final DocumentInfo TEST_DOC
            = createDocInfo("authority.a", "doc.1", "text/plain");

    public void testEquals() throws Exception {
        assertEquals(TEST_DOC, TEST_DOC);
        assertEquals(TEST_DOC, createDocInfo("authority.a", "doc.1", "text/plain"));
    }

    public void testEquals_HandlesNulls() throws Exception {
        assertFalse(TEST_DOC.equals(null));
    }

    public void testEquals_HandlesNullFields() throws Exception {
        assertFalse(TEST_DOC.equals(new DocumentInfo()));
        assertFalse(new DocumentInfo().equals(TEST_DOC));
    }

    public void testNotEquals_differentAuthority() throws Exception {
        assertFalse(TEST_DOC.equals(createDocInfo("authority.b", "doc.1", "text/plain")));
    }

    public void testNotEquals_differentDocId() throws Exception {
        assertFalse(TEST_DOC.equals(createDocInfo("authority.a", "doc.2", "text/plain")));
    }

    public void testNotEquals_differentMimetype() throws Exception {
        assertFalse(TEST_DOC.equals(createDocInfo("authority.a", "doc.1", "image/png")));
    }

    private static DocumentInfo createDocInfo(String authority, String docId, String mimeType) {
        DocumentInfo doc = new DocumentInfo();
        doc.authority = authority;
        doc.documentId = docId;
        doc.mimeType = mimeType;
        doc.deriveFields();
        return doc;
    }
}