| /* |
| * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
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| * |
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| */ |
| /* |
| * @test |
| * @bug 6609740 |
| * @summary Checks the formatting and parsing of a number based |
| * on the positive and negative sub-patterns, also |
| * checks few invalid number patterns |
| */ |
| import java.text.DecimalFormat; |
| import java.text.NumberFormat; |
| import java.text.ParseException; |
| import java.util.Locale; |
| |
| public class Bug6609740 { |
| |
| public static void main(String[] args) { |
| |
| double dNumber = -3456.349347; |
| String fOutput = "(3,456.35)"; |
| String[] validCases = {"#,##0.0#;(#,##0.0#)", "#,##0.0#;(#)", |
| "#,##0.0#;(#,##0)"}; |
| |
| // formatting with the valid cases |
| NumberFormat nf = NumberFormat.getInstance(Locale.US); |
| for (String pattern : validCases) { |
| formatOnPattern(nf, pattern, dNumber, fOutput); |
| } |
| |
| // parsing with the valid cases |
| String parseString = "(3,456.35)"; |
| Number pOutput = -3456.35; |
| for (String pattern : validCases) { |
| parseOnPattern(nf, pattern, parseString, pOutput); |
| } |
| |
| // should throw parse exception |
| String[] invalidParseCases = {"#,##0.0#;0", "#,##0.0#;()"}; |
| for (String pattern : invalidParseCases) { |
| if (nf instanceof DecimalFormat) { |
| ((DecimalFormat) nf).applyPattern(pattern); |
| } |
| |
| try { |
| nf.parse(parseString); |
| } catch (ParseException ex) { |
| continue; |
| } |
| throw new RuntimeException("[FAILED: Should throw" |
| + " ParseException for pattern: " |
| + pattern + " and input: " + parseString + "]"); |
| } |
| |
| // should throw exception on invalid patterns |
| // invalid patterns: no positive subpattern, zero after non-zero in |
| // the decimal part i.e. 0#0, multiple decimal separators, |
| // multiple percent, malformed pattern |
| String[] invalidPatterns = {";(#,##0.0#)", "#,##0.0#0;(#)", |
| "#,##0.0.#", "#,##0%%", ".#,##0"}; |
| for (String pattern : invalidPatterns) { |
| if (nf instanceof DecimalFormat) { |
| try { |
| ((DecimalFormat) nf).applyPattern(pattern); |
| } catch (IllegalArgumentException ex) { |
| continue; |
| } |
| throw new RuntimeException("[FAILED: Should throw" |
| + " IllegalArgumentException for invalid pattern: " |
| + pattern + "]"); |
| } |
| } |
| } |
| |
| private static void formatOnPattern(NumberFormat nf, String pattern, |
| double number, String expected) { |
| |
| if (nf instanceof DecimalFormat) { |
| ((DecimalFormat) nf).applyPattern(pattern); |
| } |
| |
| String formatted = nf.format(number); |
| if (!formatted.equals(expected)) { |
| throw new RuntimeException("[FAILED: Unable to format the number" |
| + " based on the pattern: '" + pattern + "', Expected : '" |
| + expected + "', Found: '" + formatted + "']"); |
| } |
| } |
| |
| private static void parseOnPattern(NumberFormat nf, String pattern, |
| String parseString, Number expected) { |
| |
| if (nf instanceof DecimalFormat) { |
| ((DecimalFormat) nf).applyPattern(pattern); |
| } |
| |
| try { |
| Number output = nf.parse(parseString); |
| if (expected.doubleValue() != output.doubleValue()) { |
| throw new RuntimeException("[FAILED: Unable to parse the number" |
| + " based on the pattern: '" + pattern + "', Expected : '" |
| + expected + "', Found: '" + output + "']"); |
| } |
| } catch (ParseException ex) { |
| throw new RuntimeException("[FAILED: Unable to parse the pattern:" |
| + " '" + pattern + "']", ex); |
| } |
| } |
| |
| } |