1 /* 2 * Copyright (C) 2019 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.server.usb; 18 19 import static org.junit.Assert.assertEquals; 20 21 import android.content.Context; 22 import android.hardware.usb.UsbManager; 23 24 import androidx.test.InstrumentationRegistry; 25 import androidx.test.filters.SmallTest; 26 import androidx.test.runner.AndroidJUnit4; 27 28 import com.android.server.usblib.UsbManagerTestLib; 29 30 import org.junit.Ignore; 31 import org.junit.Test; 32 import org.junit.runner.RunWith; 33 34 /** 35 * Unit tests for {@link android.hardware.usb.UsbManager}. 36 * Note: NOT claimed MANAGE_USB permission in Manifest 37 */ 38 @SmallTest 39 @RunWith(AndroidJUnit4.class) 40 public class UsbManagerNoPermTest { 41 private Context mContext; 42 43 private final UsbManagerTestLib mUsbManagerTestLib = 44 new UsbManagerTestLib(mContext = InstrumentationRegistry.getContext()); 45 46 /** 47 * Verify SecurityException resulting from required permissions missing 48 * Go through System Server 49 */ 50 @Test(expected = SecurityException.class) testUsbApi_GetCurrentFunctionsSys_OnSecurityException()51 public void testUsbApi_GetCurrentFunctionsSys_OnSecurityException() throws Exception { 52 mUsbManagerTestLib.testGetCurrentFunctionsSysEx(); 53 } 54 55 /** 56 * Verify SecurityException resulting from required permissions missing 57 * Go through System Server 58 */ 59 @Test(expected = SecurityException.class) testUsbApi_SetCurrentFunctionsSys_OnSecurityException()60 public void testUsbApi_SetCurrentFunctionsSys_OnSecurityException() throws Exception { 61 mUsbManagerTestLib.testSetCurrentFunctionsSysEx(UsbManager.FUNCTION_NONE); 62 } 63 64 /** 65 * Verify SecurityException resulting from required permissions missing 66 * Go through Direct API, will not be denied by @RequiresPermission annotation 67 */ 68 @Test(expected = SecurityException.class) 69 @Ignore testUsbApi_GetCurrentFunctions_OnSecurityException()70 public void testUsbApi_GetCurrentFunctions_OnSecurityException() throws Exception { 71 mUsbManagerTestLib.testGetCurrentFunctionsEx(); 72 } 73 74 /** 75 * Verify SecurityException resulting from required permissions missing 76 * Go through Direct API, will not be denied by @RequiresPermission annotation 77 */ 78 @Test(expected = SecurityException.class) 79 @Ignore testUsbApi_SetCurrentFunctions_OnSecurityException()80 public void testUsbApi_SetCurrentFunctions_OnSecurityException() throws Exception { 81 mUsbManagerTestLib.testSetCurrentFunctionsEx(UsbManager.FUNCTION_NONE); 82 } 83 assertSettableFunctions(boolean settable, long functions)84 public void assertSettableFunctions(boolean settable, long functions) { 85 assertEquals( 86 "areSettableFunctions(" + UsbManager.usbFunctionsToString(functions) + "):", 87 settable, UsbManager.areSettableFunctions(functions)); 88 } 89 90 /** 91 * Tests the behaviour of the static areSettableFunctions method. This method performs no IPCs 92 * and requires no permissions. 93 */ 94 @Test testUsbManager_AreSettableFunctions()95 public void testUsbManager_AreSettableFunctions() { 96 // NONE is settable. 97 assertSettableFunctions(true, UsbManager.FUNCTION_NONE); 98 99 // MTP, PTP, RNDIS, MIDI, NCM are all settable by themselves. 100 assertSettableFunctions(true, UsbManager.FUNCTION_MTP); 101 assertSettableFunctions(true, UsbManager.FUNCTION_PTP); 102 assertSettableFunctions(true, UsbManager.FUNCTION_RNDIS); 103 assertSettableFunctions(true, UsbManager.FUNCTION_MIDI); 104 assertSettableFunctions(true, UsbManager.FUNCTION_NCM); 105 106 // Setting two functions at the same time is not allowed... 107 assertSettableFunctions(false, UsbManager.FUNCTION_MTP | UsbManager.FUNCTION_PTP); 108 assertSettableFunctions(false, UsbManager.FUNCTION_PTP | UsbManager.FUNCTION_RNDIS); 109 assertSettableFunctions(false, UsbManager.FUNCTION_MIDI | UsbManager.FUNCTION_NCM); 110 111 // ... except in the special case of RNDIS and NCM. 112 assertSettableFunctions(true, UsbManager.FUNCTION_RNDIS | UsbManager.FUNCTION_NCM); 113 } 114 } 115