am 3f442ece: Merge "Fix character count bug and Javadoc typos in SMS (with test cases)" into gingerbread

Merge commit '3f442ece257d416b48f7803a4cc263f0215faa0d' into gingerbread-plus-aosp

* commit '3f442ece257d416b48f7803a4cc263f0215faa0d':
  Fix character count bug and Javadoc typos in SMS (with test cases)

6 files changed, 220 insertions, 23 deletions

diff --git a/telephony/java/android/telephony/gsm/SmsMessage.java b/telephony/java/android/telephony/gsm/SmsMessage.java
index 37ef912..0c63c37 100644
--- a/telephony/java/android/telephony/gsm/SmsMessage.java
+++ b/telephony/java/android/telephony/gsm/SmsMessage.java
@@ -304,9 +304,9 @@ public class SmsMessage {
             int septets = GsmAlphabet.countGsmSeptets(messageBody, !use7bitOnly);
             ret[1] = septets;
             if (septets > MAX_USER_DATA_SEPTETS) {
-                ret[0] = (septets / MAX_USER_DATA_SEPTETS_WITH_HEADER) + 1;
-                ret[2] = MAX_USER_DATA_SEPTETS_WITH_HEADER
-                            - (septets % MAX_USER_DATA_SEPTETS_WITH_HEADER);
+                ret[0] = (septets + (MAX_USER_DATA_SEPTETS_WITH_HEADER - 1)) /
+                            MAX_USER_DATA_SEPTETS_WITH_HEADER;
+                ret[2] = (ret[0] * MAX_USER_DATA_SEPTETS_WITH_HEADER) - septets;
             } else {
                 ret[0] = 1;
                 ret[2] = MAX_USER_DATA_SEPTETS - septets;
@@ -318,9 +318,9 @@ public class SmsMessage {
             ret[1] = messageBody.length();
             if (octets > MAX_USER_DATA_BYTES) {
                 // 6 is the size of the user data header
-                ret[0] = (octets / MAX_USER_DATA_BYTES_WITH_HEADER) + 1;
-                ret[2] = (MAX_USER_DATA_BYTES_WITH_HEADER
-                            - (octets % MAX_USER_DATA_BYTES_WITH_HEADER))/2;
+                ret[0] = (octets + (MAX_USER_DATA_BYTES_WITH_HEADER - 1)) /
+                            MAX_USER_DATA_BYTES_WITH_HEADER;
+                ret[2] = ((ret[0] * MAX_USER_DATA_BYTES_WITH_HEADER) - octets) / 2;
             } else {
                 ret[0] = 1;
                 ret[2] = (MAX_USER_DATA_BYTES - octets)/2;
diff --git a/telephony/java/com/android/internal/telephony/GsmAlphabet.java b/telephony/java/com/android/internal/telephony/GsmAlphabet.java
index ebdd220..7edf065 100644
--- a/telephony/java/com/android/internal/telephony/GsmAlphabet.java
+++ b/telephony/java/com/android/internal/telephony/GsmAlphabet.java
@@ -23,7 +23,7 @@ import android.util.Log;
 
 /**
  * This class implements the character set mapping between
- * the GSM SMS 7-bit alphabet specifed in TS 23.038 6.2.1
+ * the GSM SMS 7-bit alphabet specified in TS 23.038 6.2.1
  * and UTF-16
  *
  * {@hide}
diff --git a/telephony/java/com/android/internal/telephony/cdma/SmsMessage.java b/telephony/java/com/android/internal/telephony/cdma/SmsMessage.java
index b50502c..0f3b8ff 100755
--- a/telephony/java/com/android/internal/telephony/cdma/SmsMessage.java
+++ b/telephony/java/com/android/internal/telephony/cdma/SmsMessage.java
@@ -287,7 +287,7 @@ public class SmsMessage extends SmsMessageBase {
      * @param destAddr              Address of the recipient.
      * @param message               String representation of the message payload.
      * @param statusReportRequested Indicates whether a report is requested for this message.
-     * @param headerData            Array containing the data for the User Data Header, preceded
+     * @param smsHeader             Array containing the data for the User Data Header, preceded
      *                              by the Element Identifiers.
      * @return a <code>SubmitPdu</code> containing the encoded SC
      *         address, if applicable, and the encoded message.
@@ -355,7 +355,7 @@ public class SmsMessage extends SmsMessageBase {
      * Get an SMS-SUBMIT PDU for a data message to a destination address &amp; port
      *
      * @param destAddr the address of the destination for the message
-     * @param userDara the data for the message
+     * @param userData the data for the message
      * @param statusReportRequested Indicates whether a report is requested for this message.
      * @return a <code>SubmitPdu</code> containing the encoded SC
      *         address, if applicable, and the encoded message.
@@ -446,7 +446,7 @@ public class SmsMessage extends SmsMessageBase {
      */
     public static TextEncodingDetails calculateLength(CharSequence messageBody,
             boolean use7bitOnly) {
-        return BearerData.calcTextEncodingDetails(messageBody.toString(), use7bitOnly);
+        return BearerData.calcTextEncodingDetails(messageBody, use7bitOnly);
     }
 
     /**
diff --git a/telephony/java/com/android/internal/telephony/cdma/sms/BearerData.java b/telephony/java/com/android/internal/telephony/cdma/sms/BearerData.java
index c7032ac..ab79fe9 100644
--- a/telephony/java/com/android/internal/telephony/cdma/sms/BearerData.java
+++ b/telephony/java/com/android/internal/telephony/cdma/sms/BearerData.java
@@ -405,7 +405,8 @@ public final class BearerData {
     /**
      * Calculate the message text encoding length, fragmentation, and other details.
      *
-     * @param force ignore (but still count) illegal characters if true
+     * @param msg message text
+     * @param force7BitEncoding ignore (but still count) illegal characters if true
      * @return septet count, or -1 on failure
      */
     public static TextEncodingDetails calcTextEncodingDetails(CharSequence msg,
@@ -427,9 +428,10 @@ public final class BearerData {
                 ted.codeUnitCount = msg.length();
                 int octets = ted.codeUnitCount * 2;
                 if (octets > MAX_USER_DATA_BYTES) {
-                    ted.msgCount = (octets / MAX_USER_DATA_BYTES_WITH_HEADER) + 1;
-                    ted.codeUnitsRemaining = (MAX_USER_DATA_BYTES_WITH_HEADER
-                              - (octets % MAX_USER_DATA_BYTES_WITH_HEADER))/2;
+                    ted.msgCount = (octets + (MAX_USER_DATA_BYTES_WITH_HEADER - 1)) /
+                            MAX_USER_DATA_BYTES_WITH_HEADER;
+                    ted.codeUnitsRemaining = ((ted.msgCount *
+                            MAX_USER_DATA_BYTES_WITH_HEADER) - octets) / 2;
                 } else {
                     ted.msgCount = 1;
                     ted.codeUnitsRemaining = (MAX_USER_DATA_BYTES - octets)/2;
@@ -802,9 +804,8 @@ public final class BearerData {
      * Create serialized representation for BearerData object.
      * (See 3GPP2 C.R1001-F, v1.0, section 4.5 for layout details)
      *
-     * @param bearerData an instance of BearerData.
-     *
-     * @return data byta array of raw encoded SMS bearer data.
+     * @param bData an instance of BearerData.
+     * @return byte array of raw encoded SMS bearer data.
      */
     public static byte[] encode(BearerData bData) {
         bData.hasUserDataHeader = ((bData.userData != null) &&
diff --git a/telephony/java/com/android/internal/telephony/gsm/SmsMessage.java b/telephony/java/com/android/internal/telephony/gsm/SmsMessage.java
index 4fd62fb..9a3c476 100644
--- a/telephony/java/com/android/internal/telephony/gsm/SmsMessage.java
+++ b/telephony/java/com/android/internal/telephony/gsm/SmsMessage.java
@@ -800,9 +800,10 @@ public class SmsMessage extends SmsMessageBase{
             int septets = GsmAlphabet.countGsmSeptets(msgBody, !use7bitOnly);
             ted.codeUnitCount = septets;
             if (septets > MAX_USER_DATA_SEPTETS) {
-                ted.msgCount = (septets / MAX_USER_DATA_SEPTETS_WITH_HEADER) + 1;
-                ted.codeUnitsRemaining = MAX_USER_DATA_SEPTETS_WITH_HEADER
-                    - (septets % MAX_USER_DATA_SEPTETS_WITH_HEADER);
+                ted.msgCount = (septets + (MAX_USER_DATA_SEPTETS_WITH_HEADER - 1)) /
+                        MAX_USER_DATA_SEPTETS_WITH_HEADER;
+                ted.codeUnitsRemaining = (ted.msgCount *
+                        MAX_USER_DATA_SEPTETS_WITH_HEADER) - septets;
             } else {
                 ted.msgCount = 1;
                 ted.codeUnitsRemaining = MAX_USER_DATA_SEPTETS - septets;
@@ -812,9 +813,10 @@ public class SmsMessage extends SmsMessageBase{
             int octets = msgBody.length() * 2;
             ted.codeUnitCount = msgBody.length();
             if (octets > MAX_USER_DATA_BYTES) {
-                ted.msgCount = (octets / MAX_USER_DATA_BYTES_WITH_HEADER) + 1;
-                ted.codeUnitsRemaining = (MAX_USER_DATA_BYTES_WITH_HEADER
-                          - (octets % MAX_USER_DATA_BYTES_WITH_HEADER))/2;
+                ted.msgCount = (octets + (MAX_USER_DATA_BYTES_WITH_HEADER - 1)) /
+                        MAX_USER_DATA_BYTES_WITH_HEADER;
+                ted.codeUnitsRemaining = ((ted.msgCount *
+                        MAX_USER_DATA_BYTES_WITH_HEADER) - octets) / 2;
             } else {
                 ted.msgCount = 1;
                 ted.codeUnitsRemaining = (MAX_USER_DATA_BYTES - octets)/2;
diff --git a/telephony/tests/telephonytests/src/com/android/internal/telephony/SmsMessageBodyTest.java b/telephony/tests/telephonytests/src/com/android/internal/telephony/SmsMessageBodyTest.java
new file mode 100644
index 0000000..b214887
--- /dev/null
+++ b/telephony/tests/telephonytests/src/com/android/internal/telephony/SmsMessageBodyTest.java
@@ -0,0 +1,194 @@
+/*
+ * Copyright (C) 2010 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.internal.telephony;
+
+import android.telephony.SmsMessage;
+import android.telephony.TelephonyManager;
+import android.test.AndroidTestCase;
+import android.test.suitebuilder.annotation.SmallTest;
+
+import static android.telephony.SmsMessage.MAX_USER_DATA_SEPTETS;
+
+public class SmsMessageBodyTest extends AndroidTestCase {
+
+    private static final String sAsciiChars = "@$_ !\"#%&'()*+,-./0123456789" +
+            ":;<=>?ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz\n\r";
+    private static final String sGsmBasicChars = "\u00a3\u00a5\u00e8\u00e9" +
+            "\u00f9\u00ec\u00f2\u00c7\u00d8\u00f8\u00c5\u00e5\u0394\u03a6" +
+            "\u0393\u039b\u03a9\u03a0\u03a8\u03a3\u0398\u00c6\u00e6" +
+            "\u00df\u00c9\u00a4\u00a1\u00c4\u00d6\u00d1\u00dc\u00a7\u00bf" +
+            "\u00e4\u00f6\u00f1\u00fc\u00e0";
+    private static final String sGsmExtendedAsciiChars = "{|}\\[~]^\f";
+    private static final String sGsmExtendedEuroSymbol = "\u20ac";
+    private static final String sUnicodeChars = "\u4e00\u4e01\u4e02\u4e03" +
+            "\u4e04\u4e05\u4e06\u4e07\u4e08\u4e09\u4e0a\u4e0b\u4e0c\u4e0d" +
+            "\u4e0e\u4e0f\u3041\u3042\u3043\u3044\u3045\u3046\u3047\u3048" +
+            "\u30a1\u30a2\u30a3\u30a4\u30a5\u30a6\u30a7\u30a8" +
+            "\uff10\uff11\uff12\uff13\uff14\uff15\uff16\uff17\uff18" +
+            "\uff70\uff71\uff72\uff73\uff74\uff75\uff76\uff77\uff78" +
+            "\u0400\u0401\u0402\u0403\u0404\u0405\u0406\u0407\u0408" +
+            "\u00a2\u00a9\u00ae\u2122";
+
+    private static final int sTestLengthCount = 12;
+
+    private static final int[] sSeptetTestLengths =
+            {  0,   1,   2, 80, 159, 160, 161, 240, 305, 306, 307, 320};
+
+    private static final int[] sUnicodeTestLengths =
+            {  0,   1,   2, 35,  69,  70,  71, 100, 133, 134, 135, 160};
+
+    private static final int[] sTestMsgCounts =
+            {  1,   1,   1,  1,   1,   1,   2,   2,   2,   2,   3,   3};
+
+    private static final int[] sSeptetUnitsRemaining =
+            {160, 159, 158, 80,   1,   0, 145,  66,   1,   0, 152, 139};
+
+    private static final int[] sUnicodeUnitsRemaining =
+            { 70,  69,  68, 35,   1,   0,  63,  34,   1,   0,  66,  41};
+
+
+    @SmallTest
+    public void testCalcLengthAscii() throws Exception {
+        StringBuilder sb = new StringBuilder(320);
+        int[] values = {0, 0, 0, SmsMessage.ENCODING_7BIT};
+        int startPos = 0;
+        int asciiCharsLen = sAsciiChars.length();
+
+        for (int i = 0; i < sTestLengthCount; i++) {
+            int len = sSeptetTestLengths[i];
+            assertTrue(sb.length() <= len);
+
+            while (sb.length() < len) {
+                int addCount = len - sb.length();
+                int endPos = (asciiCharsLen - startPos > addCount) ?
+                        (startPos + addCount) : asciiCharsLen;
+                sb.append(sAsciiChars, startPos, endPos);
+                startPos = (endPos == asciiCharsLen) ? 0 : endPos;
+            }
+            assertEquals(len, sb.length());
+
+            String testStr = sb.toString();
+            values[0] = sTestMsgCounts[i];
+            values[1] = len;
+            values[2] = sSeptetUnitsRemaining[i];
+
+            callGsmLengthMethods(testStr, false, values);
+            callGsmLengthMethods(testStr, true, values);
+            callCdmaLengthMethods(testStr, false, values);
+            callCdmaLengthMethods(testStr, true, values);
+        }
+    }
+
+    @SmallTest
+    public void testCalcLength7bitGsm() throws Exception {
+        // TODO
+    }
+
+    @SmallTest
+    public void testCalcLength7bitGsmExtended() throws Exception {
+        // TODO
+    }
+
+    @SmallTest
+    public void testCalcLengthUnicode() throws Exception {
+        StringBuilder sb = new StringBuilder(160);
+        int[] values = {0, 0, 0, SmsMessage.ENCODING_16BIT};
+        int[] values7bit = {1, 0, 0, SmsMessage.ENCODING_7BIT};
+        int startPos = 0;
+        int unicodeCharsLen = sUnicodeChars.length();
+
+        // start with length 1: empty string uses ENCODING_7BIT
+        for (int i = 1; i < sTestLengthCount; i++) {
+            int len = sUnicodeTestLengths[i];
+            assertTrue(sb.length() <= len);
+
+            while (sb.length() < len) {
+                int addCount = len - sb.length();
+                int endPos = (unicodeCharsLen - startPos > addCount) ?
+                        (startPos + addCount) : unicodeCharsLen;
+                sb.append(sUnicodeChars, startPos, endPos);
+                startPos = (endPos == unicodeCharsLen) ? 0 : endPos;
+            }
+            assertEquals(len, sb.length());
+
+            String testStr = sb.toString();
+            values[0] = sTestMsgCounts[i];
+            values[1] = len;
+            values[2] = sUnicodeUnitsRemaining[i];
+            values7bit[1] = len;
+            values7bit[2] = MAX_USER_DATA_SEPTETS - len;
+
+            callGsmLengthMethods(testStr, false, values);
+            callCdmaLengthMethods(testStr, false, values);
+            callGsmLengthMethods(testStr, true, values7bit);
+            callCdmaLengthMethods(testStr, true, values7bit);
+        }
+    }
+
+    private void callGsmLengthMethods(CharSequence msgBody, boolean use7bitOnly,
+            int[] expectedValues)
+    {
+        // deprecated GSM-specific method
+        int[] values = android.telephony.gsm.SmsMessage.calculateLength(msgBody, use7bitOnly);
+        assertEquals("msgCount",           expectedValues[0], values[0]);
+        assertEquals("codeUnitCount",      expectedValues[1], values[1]);
+        assertEquals("codeUnitsRemaining", expectedValues[2], values[2]);
+        assertEquals("codeUnitSize",       expectedValues[3], values[3]);
+
+        int activePhone = TelephonyManager.getDefault().getPhoneType();
+        if (TelephonyManager.PHONE_TYPE_GSM == activePhone) {
+            values = android.telephony.SmsMessage.calculateLength(msgBody, use7bitOnly);
+            assertEquals("msgCount",           expectedValues[0], values[0]);
+            assertEquals("codeUnitCount",      expectedValues[1], values[1]);
+            assertEquals("codeUnitsRemaining", expectedValues[2], values[2]);
+            assertEquals("codeUnitSize",       expectedValues[3], values[3]);
+        }
+
+        SmsMessageBase.TextEncodingDetails ted =
+                com.android.internal.telephony.gsm.SmsMessage.calculateLength(msgBody, use7bitOnly);
+        assertEquals("msgCount",           expectedValues[0], ted.msgCount);
+        assertEquals("codeUnitCount",      expectedValues[1], ted.codeUnitCount);
+        assertEquals("codeUnitsRemaining", expectedValues[2], ted.codeUnitsRemaining);
+        assertEquals("codeUnitSize",       expectedValues[3], ted.codeUnitSize);
+    }
+
+    private void callCdmaLengthMethods(CharSequence msgBody, boolean use7bitOnly,
+            int[] expectedValues)
+    {
+        int activePhone = TelephonyManager.getDefault().getPhoneType();
+        if (TelephonyManager.PHONE_TYPE_CDMA == activePhone) {
+            int[] values = android.telephony.SmsMessage.calculateLength(msgBody, use7bitOnly);
+            assertEquals("msgCount",           expectedValues[0], values[0]);
+            assertEquals("codeUnitCount",      expectedValues[1], values[1]);
+            assertEquals("codeUnitsRemaining", expectedValues[2], values[2]);
+            assertEquals("codeUnitSize",       expectedValues[3], values[3]);
+        }
+
+        SmsMessageBase.TextEncodingDetails ted =
+                com.android.internal.telephony.cdma.SmsMessage.calculateLength(msgBody, use7bitOnly);
+        assertEquals("msgCount",           expectedValues[0], ted.msgCount);
+        assertEquals("codeUnitCount",      expectedValues[1], ted.codeUnitCount);
+        assertEquals("codeUnitsRemaining", expectedValues[2], ted.codeUnitsRemaining);
+        assertEquals("codeUnitSize",       expectedValues[3], ted.codeUnitSize);
+
+        ted = com.android.internal.telephony.cdma.sms.BearerData.calcTextEncodingDetails(msgBody, use7bitOnly);
+        assertEquals("msgCount",           expectedValues[0], ted.msgCount);
+        assertEquals("codeUnitCount",      expectedValues[1], ted.codeUnitCount);
+        assertEquals("codeUnitsRemaining", expectedValues[2], ted.codeUnitsRemaining);
+        assertEquals("codeUnitSize",       expectedValues[3], ted.codeUnitSize);
+    }
+}