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packages/intl/test/number_closure_test.dart

Index: packages/intl/test/number_closure_test.dart
diff --git a/packages/intl/test/number_closure_test.dart b/packages/intl/test/number_closure_test.dart
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+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+/**
+ * Tests based on the closure number formatting tests.
+ */
+library number_closure_test;
+
+import 'dart:async';
+import "package:intl/intl.dart";
+import "package:unittest/unittest.dart";
+
+main() {
+  test("testVeryBigNumber", testVeryBigNumber);
+  test("testStandardFormat", testStandardFormat);
+  test("testNegativePercentage", testNegativePercentage);
+  test("testCustomPercentage", testCustomPercentage);
+  test("testBasicFormat", testBasicFormat);
+  test("testGrouping", testGrouping);
+  test("testPerMill", testPerMill);
+  test("testQuotes", testQuotes);
+  test("testZeros", testZeros);
+  test("testExponential", testExponential);
+  test("testPlusSignInExponentPart", testPlusSignInExponentPart);
+  test("testApis", testApis);
+  test("testLocaleSwitch", testLocaleSwitch);
+  test("testLocaleSwitchAsync", testLocaleSwitchAsync);
+}
+
+/**
+ * Test two large numbers for equality, assuming that there may be some
+ * loss of precision in the less significant digits.
+ */
+veryBigNumberCompare(str1, str2) {
+  return str1.length == str2.length &&
+      str1.substring(0, 8) == str2.substring(0, 8);
+}
+
+testVeryBigNumber() {
+  var str;
+  var fmt;
+
+  fmt = new NumberFormat.decimalPattern();
+  str = fmt.format(1.3456E20);
+  expect(veryBigNumberCompare('134,560,000,000,000,000,000', str), isTrue);
+
+  fmt = new NumberFormat.percentPattern();
+  str = fmt.format(1.3456E20);
+  expect(veryBigNumberCompare('13,456,000,000,000,000,000,000%', str), isTrue);
+
+  // TODO(alanknight): Note that this disagrees with what ICU would print
+  // for this. We need significant digit support to do this properly.
+  fmt = new NumberFormat.scientificPattern();
+  str = fmt.format(1.3456E20);
+  expect('1E20', str);
+
+  fmt = new NumberFormat.decimalPattern();
+  str = fmt.format(-1.234567890123456e306);
+  expect(1 + 1 + 306 + 306 / 3, str.length);
+  expect('-1,234,567,890,123,45', str.substring(0, 21));
+
+  str = fmt.format(1 / 0);
+  expect('∞', str);
+  str = fmt.format(-1 / 0);
+  expect('-∞', str);
+}
+
+void testStandardFormat() {
+  var str;
+  var fmt;
+  fmt = new NumberFormat.decimalPattern();
+  str = fmt.format(1234.579);
+  expect('1,234.579', str);
+  fmt = new NumberFormat.percentPattern();
+  str = fmt.format(1234.579);
+  expect('123,458%', str);
+  fmt = new NumberFormat.scientificPattern();
+  str = fmt.format(1234.579);
+  expect('1E3', str);
+}
+
+void testNegativePercentage() {
+  var str;
+  var fmt = new NumberFormat('#,##0.00%');
+  str = fmt.format(-1234.56);
+  expect('-123,456.00%', str);
+
+  fmt = new NumberFormat.percentPattern();
+  str = fmt.format(-1234.579);
+  expect('-123,458%', str);
+}
+
+void testCustomPercentage() {
+  var fmt = new NumberFormat.percentPattern();
+  fmt.maximumFractionDigits = 1;
+  fmt.minimumFractionDigits = 1;
+  var str = fmt.format(0.1291);
+  expect('12.9%', str);
+  fmt.maximumFractionDigits = 2;
+  fmt.minimumFractionDigits = 1;
+  str = fmt.format(0.129);
+  expect('12.9%', str);
+  fmt.maximumFractionDigits = 2;
+  fmt.minimumFractionDigits = 1;
+  str = fmt.format(0.12);
+  expect('12.0%', str);
+  fmt.maximumFractionDigits = 2;
+  fmt.minimumFractionDigits = 1;
+  str = fmt.format(0.12911);
+  expect('12.91%', str);
+}
+
+void testBasicFormat() {
+  var fmt = new NumberFormat('0.0000');
+  var str = fmt.format(123.45789179565757);
+  expect('123.4579', str);
+}
+
+void testGrouping() {
+  var str;
+
+  var fmt = new NumberFormat('#,###');
+  str = fmt.format(1234567890);
+  expect('1,234,567,890', str);
+  fmt = new NumberFormat('#,####');
+  str = fmt.format(1234567890);
+  expect('12,3456,7890', str);
+
+  fmt = new NumberFormat('#');
+  str = fmt.format(1234567890);
+  expect('1234567890', str);
+}
+
+void testPerMill() {
+  var str;
+
+  var fmt = new NumberFormat('###.###\u2030');
+  str = fmt.format(0.4857);
+  expect('485.7\u2030', str);
+}
+
+void testQuotes() {
+  var str;
+
+  var fmt = new NumberFormat('a\'fo\'\'o\'b#');
+  str = fmt.format(123);
+  expect('afo\'ob123', str);
+
+  fmt = new NumberFormat('a\'\'b#');
+  str = fmt.format(123);
+  expect('a\'b123', str);
+
+  fmt = new NumberFormat('a\'fo\'\'o\'b#');
+  str = fmt.format(-123);
+  expect('-afo\'ob123', str);
+
+  fmt = new NumberFormat('a\'\'b#');
+  str = fmt.format(-123);
+  expect('-a\'b123', str);
+}
+
+void testZeros() {
+  var str;
+  var fmt;
+
+  fmt = new NumberFormat('#.#');
+  str = fmt.format(0);
+  expect('0', str);
+  fmt = new NumberFormat('#.');
+  str = fmt.format(0);
+  expect('0.', str);
+  fmt = new NumberFormat('.#');
+  str = fmt.format(0);
+  expect('.0', str);
+  fmt = new NumberFormat('#');
+  str = fmt.format(0);
+  expect('0', str);
+
+  fmt = new NumberFormat('#0.#');
+  str = fmt.format(0);
+  expect('0', str);
+  fmt = new NumberFormat('#0.');
+  str = fmt.format(0);
+  expect('0.', str);
+  fmt = new NumberFormat('#.0');
+  str = fmt.format(0);
+  expect('.0', str);
+  fmt = new NumberFormat('#');
+  str = fmt.format(0);
+  expect('0', str);
+  fmt = new NumberFormat('000');
+  str = fmt.format(0);
+  expect('000', str);
+}
+
+void testExponential() {
+  var str;
+  var fmt;
+
+  fmt = new NumberFormat('0.####E0');
+  str = fmt.format(0.01234);
+  expect('1.234E-2', str);
+  fmt = new NumberFormat('00.000E00');
+  str = fmt.format(0.01234);
+  expect('12.340E-03', str);
+  fmt = new NumberFormat('##0.######E000');
+  str = fmt.format(0.01234);
+  expect('12.34E-003', str);
+  fmt = new NumberFormat('0.###E0;[0.###E0]');
+  str = fmt.format(0.01234);
+  expect('1.234E-2', str);
+
+  fmt = new NumberFormat('0.####E0');
+  str = fmt.format(123456789);
+  expect('1.2346E8', str);
+  fmt = new NumberFormat('00.000E00');
+  str = fmt.format(123456789);
+  expect('12.346E07', str);
+  fmt = new NumberFormat('##0.######E000');
+  str = fmt.format(123456789);
+  expect('123.456789E006', str);
+  fmt = new NumberFormat('0.###E0;[0.###E0]');
+  str = fmt.format(123456789);
+  expect('1.235E8', str);
+
+  fmt = new NumberFormat('0.####E0');
+  str = fmt.format(1.23e300);
+  expect('1.23E300', str);
+  fmt = new NumberFormat('00.000E00');
+  str = fmt.format(1.23e300);
+  expect('12.300E299', str);
+  fmt = new NumberFormat('##0.######E000');
+  str = fmt.format(1.23e300);
+  expect('1.23E300', str);
+  fmt = new NumberFormat('0.###E0;[0.###E0]');
+  str = fmt.format(1.23e300);
+  expect('1.23E300', str);
+
+  fmt = new NumberFormat('0.####E0');
+  str = fmt.format(-3.141592653e-271);
+  expect('-3.1416E-271', str);
+  fmt = new NumberFormat('00.000E00');
+  str = fmt.format(-3.141592653e-271);
+  expect('-31.416E-272', str);
+  fmt = new NumberFormat('##0.######E000');
+  str = fmt.format(-3.141592653e-271);
+  expect('-314.159265E-273', str);
+  fmt = new NumberFormat('0.###E0;[0.###E0]');
+  str = fmt.format(-3.141592653e-271);
+  expect('[3.142E-271]', str);
+
+  fmt = new NumberFormat('0.####E0');
+  str = fmt.format(0);
+  expect('0E0', str);
+  fmt = new NumberFormat('00.000E00');
+  str = fmt.format(0);
+  expect('00.000E00', str);
+  fmt = new NumberFormat('##0.######E000');
+  str = fmt.format(0);
+  expect('0E000', str);
+  fmt = new NumberFormat('0.###E0;[0.###E0]');
+  str = fmt.format(0);
+  expect('0E0', str);
+
+  fmt = new NumberFormat('0.####E0');
+  str = fmt.format(-1);
+  expect('-1E0', str);
+  fmt = new NumberFormat('00.000E00');
+  str = fmt.format(-1);
+  expect('-10.000E-01', str);
+  fmt = new NumberFormat('##0.######E000');
+  str = fmt.format(-1);
+  expect('-1E000', str);
+  fmt = new NumberFormat('0.###E0;[0.###E0]');
+  str = fmt.format(-1);
+  expect('[1E0]', str);
+
+  fmt = new NumberFormat('0.####E0');
+  str = fmt.format(1);
+  expect('1E0', str);
+  fmt = new NumberFormat('00.000E00');
+  str = fmt.format(1);
+  expect('10.000E-01', str);
+  fmt = new NumberFormat('##0.######E000');
+  str = fmt.format(1);
+  expect('1E000', str);
+  fmt = new NumberFormat('0.###E0;[0.###E0]');
+  str = fmt.format(1);
+  expect('1E0', str);
+
+  fmt = new NumberFormat('#E0');
+  str = fmt.format(12345.0);
+  expect('1E4', str);
+  fmt = new NumberFormat('0E0');
+  str = fmt.format(12345.0);
+  expect('1E4', str);
+  fmt = new NumberFormat('##0.###E0');
+  str = fmt.format(12345.0);
+  expect('12.345E3', str);
+  fmt = new NumberFormat('##0.###E0');
+  str = fmt.format(12345.00001);
+  expect('12.345E3', str);
+  fmt = new NumberFormat('##0.###E0');
+  str = fmt.format(12345);
+  expect('12.345E3', str);
+
+  fmt = new NumberFormat('##0.####E0');
+  str = fmt.format(789.12345e-9);
+  fmt = new NumberFormat('##0.####E0');
+  str = fmt.format(780e-9);
+  expect('780E-9', str);
+  fmt = new NumberFormat('.###E0');
+  str = fmt.format(45678.0);
+  expect('.457E5', str);
+  fmt = new NumberFormat('.###E0');
+  str = fmt.format(0);
+  expect('.0E0', str);
+
+  fmt = new NumberFormat('#E0');
+  str = fmt.format(45678000);
+  expect('5E7', str);
+  fmt = new NumberFormat('##E0');
+  str = fmt.format(45678000);
+  expect('46E6', str);
+  fmt = new NumberFormat('####E0');
+  str = fmt.format(45678000);
+  expect('4568E4', str);
+  fmt = new NumberFormat('0E0');
+  str = fmt.format(45678000);
+  expect('5E7', str);
+  fmt = new NumberFormat('00E0');
+  str = fmt.format(45678000);
+  expect('46E6', str);
+  fmt = new NumberFormat('000E0');
+  str = fmt.format(45678000);
+  expect('457E5', str);
+  fmt = new NumberFormat('###E0');
+  str = fmt.format(0.0000123);
+  expect('12E-6', str);
+  fmt = new NumberFormat('###E0');
+  str = fmt.format(0.000123);
+  expect('123E-6', str);
+  fmt = new NumberFormat('###E0');
+  str = fmt.format(0.00123);
+  expect('1E-3', str);
+  fmt = new NumberFormat('###E0');
+  str = fmt.format(0.0123);
+  expect('12E-3', str);
+  fmt = new NumberFormat('###E0');
+  str = fmt.format(0.123);
+  expect('123E-3', str);
+  fmt = new NumberFormat('###E0');
+  str = fmt.format(1.23);
+  expect('1E0', str);
+  fmt = new NumberFormat('###E0');
+  str = fmt.format(12.3);
+  expect('12E0', str);
+  fmt = new NumberFormat('###E0');
+  str = fmt.format(123.0);
+  expect('123E0', str);
+  fmt = new NumberFormat('###E0');
+  str = fmt.format(1230.0);
+  expect('1E3', str);
+}
+
+void testPlusSignInExponentPart() {
+  var fmt;
+  fmt = new NumberFormat('0E+0');
+  var str = fmt.format(45678000);
+  expect('5E+7', str);
+}
+
+void testApis() {
+  var fmt;
+  var str;
+
+  fmt = new NumberFormat('#,###');
+  str = fmt.format(1234567890);
+  expect('1,234,567,890', str);
+}
+
+testLocaleSwitch() {
+  Intl.withLocale("fr", verifyFrenchLocale);
+}
+
+testLocaleSwitchAsync() {
+  Intl.withLocale("fr", () {
+    new Timer(new Duration(milliseconds: 10), expectAsync(verifyFrenchLocale));
+  });
+  // Verify that things running outside the zone still get en_US.
+  testStandardFormat();
+}
+
+void verifyFrenchLocale() {
+  var fmt = new NumberFormat('#,###');
+  var str = fmt.format(1234567890);
+  expect(str, '1\u00a0234\u00a0567\u00a0890');
+}