Accept any string for currency code in PaymentRequest.

chrome/android/junit/src/org/chromium/chrome/browser/payments/CurrencyStringFormatterTest.java

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.chrome.browser.payments;
 
 import org.junit.Assert;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.junit.runners.Parameterized;
@@ skipping 56 matching lines @@
 
             {"123456789012345678901234567890.123456789012345678901234567890", "USD", "fr-FR",
                     "$123" + SPACE + "456" + SPACE + "789" + SPACE + "012" + SPACE + "345"
                             + SPACE + "678" + SPACE + "901" + SPACE + "234" + SPACE + "567"
                             + SPACE + "890,123456789012345678901234567890",
                     ExpectedValidity.VALID_AMOUNT},
             {"123456789012345678901234567890.123456789012345678901234567890", "USD", "en-US",
                     "$123,456,789,012,345,678,901,234,567,890.123456789012345678901234567890",
                     ExpectedValidity.VALID_AMOUNT},
 
+            // Any string of at most 2048 characters can be valid amount currency codes.
+            {"55.00", "", "en-US", "55.00", ExpectedValidity.VALID_AMOUNT},
+            {"55.00", "ABCDEF", "en-US", "55.00", ExpectedValidity.VALID_AMOUNT},
+            {"55.00", longStringOfLength(2048), "en-US", "55.00", ExpectedValidity.VALID_AMOUNT},
+
             // Invalid amount currency codes.
-            {"55.00", "", "en-US", null, ExpectedValidity.INVALID_AMOUNT_CURRENCY_CODE},
-            {"55.00", "usd", "en-US", null, ExpectedValidity.INVALID_AMOUNT_CURRENCY_CODE},
-            {"55.00", "US8", "en-US", null, ExpectedValidity.INVALID_AMOUNT_CURRENCY_CODE},
-            {"55.00", "US", "en-US", null, ExpectedValidity.INVALID_AMOUNT_CURRENCY_CODE},
-            {"55.00", "USDR", "en-US", null, ExpectedValidity.INVALID_AMOUNT_CURRENCY_CODE},
-            {"55.00", "USDr", "en-US", null, ExpectedValidity.INVALID_AMOUNT_CURRENCY_CODE},
+            {"55.00", longStringOfLength(2049), "en-US", null,
+                    ExpectedValidity.INVALID_AMOUNT_CURRENCY_CODE},
 
             // Invalid amount values.
             {"", "USD", "en-US", null, ExpectedValidity.INVALID_AMOUNT_VALUE},
             {"-", "USD", "en-US", null, ExpectedValidity.INVALID_AMOUNT_VALUE},
             {"notdigits", "USD", "en-US", null, ExpectedValidity.INVALID_AMOUNT_VALUE},
             {"ALSONOTDIGITS", "USD", "en-US", null, ExpectedValidity.INVALID_AMOUNT_VALUE},
             {"10.", "USD", "en-US", null, ExpectedValidity.INVALID_AMOUNT_VALUE},
             {".99", "USD", "en-US", null, ExpectedValidity.INVALID_AMOUNT_VALUE},
             {"10-", "USD", "en-US", null, ExpectedValidity.INVALID_AMOUNT_VALUE},
             {"1-0", "USD", "en-US", null, ExpectedValidity.INVALID_AMOUNT_VALUE},
             {"1.0.0", "USD", "en-US", null, ExpectedValidity.INVALID_AMOUNT_VALUE},
             {"1/3", "USD", "en-US", null, ExpectedValidity.INVALID_AMOUNT_VALUE},
         });
     }
 
     private final String mAmount;
     private final String mCurrency;
     private final String mLanguageTag;
     private final String mExpectedFormatting;
     private final ExpectedValidity mExpectedValidity;
 
+    private static String longStringOfLength(int len) {
+        StringBuilder currency = new StringBuilder();
+        for (int i = 0; i < len; i++) {
+            currency.append("A");
+        }
+        return currency.toString();
+    }
+
     public CurrencyStringFormatterTest(String amount, String currency, String languageTag,
             String expectedFormatting, ExpectedValidity expectedValidity) {
         mAmount = amount;
         mCurrency = currency;
         mLanguageTag = languageTag;
         mExpectedFormatting = expectedFormatting;
         mExpectedValidity = expectedValidity;
     }
 
     @Test
@@ skipping 17 matching lines @@
                     formatter.isValidAmountValue(mAmount));
         }
 
         if (mExpectedValidity == ExpectedValidity.VALID_AMOUNT) {
             Assert.assertEquals("\"" + mCurrency + "\" \"" + mAmount + "\" (\"" + mLanguageTag
                             + "\" locale) should be formatted into \"" + mExpectedFormatting + "\"",
                     mExpectedFormatting, formatter.format(mAmount));
         }
     }
 }