| /* |
| * 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 libcore.java.text; |
| |
| import java.math.BigInteger; |
| import java.text.DecimalFormat; |
| import java.text.DecimalFormatSymbols; |
| import java.text.FieldPosition; |
| import java.text.NumberFormat; |
| import java.text.ParsePosition; |
| import java.util.Locale; |
| import tests.support.Support_Locale; |
| |
| public class NumberFormatTest extends junit.framework.TestCase { |
| // NumberFormat.format(Object, StringBuffer, FieldPosition) guarantees it calls doubleValue for |
| // custom Number subclasses. |
| public void test_custom_Number_gets_longValue() throws Exception { |
| class MyNumber extends Number { |
| public byte byteValue() { throw new UnsupportedOperationException(); } |
| public double doubleValue() { return 123; } |
| public float floatValue() { throw new UnsupportedOperationException(); } |
| public int intValue() { throw new UnsupportedOperationException(); } |
| public long longValue() { throw new UnsupportedOperationException(); } |
| public short shortValue() { throw new UnsupportedOperationException(); } |
| public String toString() { throw new UnsupportedOperationException(); } |
| } |
| NumberFormat nf = NumberFormat.getNumberInstance(Locale.US); |
| assertEquals("123", nf.format(new MyNumber())); |
| } |
| |
| // NumberFormat.format(Object, StringBuffer, FieldPosition) guarantees it calls longValue for |
| // any BigInteger with a bitLength strictly less than 64. |
| public void test_small_BigInteger_gets_longValue() throws Exception { |
| class MyNumberFormat extends NumberFormat { |
| public StringBuffer format(double value, StringBuffer b, FieldPosition f) { |
| b.append("double"); |
| return b; |
| } |
| public StringBuffer format(long value, StringBuffer b, FieldPosition f) { |
| b.append("long"); |
| return b; |
| } |
| public Number parse(String string, ParsePosition p) { |
| throw new UnsupportedOperationException(); |
| } |
| } |
| NumberFormat nf = new MyNumberFormat(); |
| assertEquals("long", nf.format(BigInteger.valueOf(Long.MAX_VALUE))); |
| assertEquals("double", nf.format(BigInteger.valueOf(Long.MAX_VALUE).add(BigInteger.ONE))); |
| assertEquals("long", nf.format(BigInteger.valueOf(Long.MIN_VALUE))); |
| assertEquals("double", nf.format(BigInteger.valueOf(Long.MIN_VALUE).subtract(BigInteger.ONE))); |
| } |
| |
| public void test_getIntegerInstance_ar() throws Exception { |
| if (!Support_Locale.isLocaleAvailable(new Locale("ar"))) { |
| return; |
| } |
| NumberFormat numberFormat = NumberFormat.getNumberInstance(new Locale("ar")); |
| assertEquals("#,##0.###;#,##0.###-", ((DecimalFormat) numberFormat).toPattern()); |
| NumberFormat integerFormat = NumberFormat.getIntegerInstance(new Locale("ar")); |
| assertEquals("#,##0;#,##0-", ((DecimalFormat) integerFormat).toPattern()); |
| } |
| |
| public void test_numberLocalization() throws Exception { |
| Locale arabic = new Locale("ar"); |
| if (!Support_Locale.isLocaleAvailable(arabic)) { |
| return; |
| } |
| NumberFormat nf = NumberFormat.getNumberInstance(arabic); |
| assertEquals('\u0660', new DecimalFormatSymbols(arabic).getZeroDigit()); |
| assertEquals("\u0661\u066c\u0662\u0663\u0664\u066c\u0665\u0666\u0667\u066c\u0668\u0669\u0660", |
| nf.format(1234567890)); |
| } |
| |
| // Formatting percentages is confusing but deliberate. |
| // Ensure we don't accidentally "fix" this. |
| public void test_10333() throws Exception { |
| NumberFormat nf = NumberFormat.getPercentInstance(Locale.US); |
| assertEquals("15%", nf.format(0.15)); |
| assertEquals("1,500%", nf.format(15)); |
| try { |
| nf.format("15"); |
| fail(); |
| } catch (IllegalArgumentException expected) { |
| } |
| } |
| } |