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    1   /**
    2    * Copyright (c) 2008-2011, http://www.snakeyaml.org
    3    *
    4    * Licensed under the Apache License, Version 2.0 (the "License");
    5    * you may not use this file except in compliance with the License.
    6    * You may obtain a copy of the License at
    7    *
    8    *     http://www.apache.org/licenses/LICENSE-2.0
    9    *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   */
    16
    17  package org.yaml.snakeyaml.types;
    18
    19  import java.io.IOException;
    20  import java.util.HashMap;
    21  import java.util.Map;
    22
    23  /**
    24   * @see http://yaml.org/type/float.html
    25   */
    26  public class FloatTagTest extends AbstractTest {
    27
    28      public void testFloat() throws IOException {
    29          assertEquals(new Double(6.8523015e+5), getMapValue("canonical: 6.8523015e+5", "canonical"));
    30          assertEquals(new Double(6.8523015e+5),
    31                  getMapValue("exponentioal: 685.230_15e+03", "exponentioal"));
    32          assertEquals(new Double(6.8523015e+5), getMapValue("fixed: 685_230.15", "fixed"));
    33          assertEquals(new Double(6.8523015e+5),
    34                  getMapValue("sexagesimal: 190:20:30.15", "sexagesimal"));
    35          assertEquals(Double.NEGATIVE_INFINITY,
    36                  getMapValue("negative infinity: -.inf", "negative infinity"));
    37          assertEquals(Double.NaN, getMapValue("not a number: .NaN", "not a number"));
    38      }
    39
    40      public void testFloatShorthand() throws IOException {
    41          assertEquals(new Double(1), getMapValue("number: !!float 1", "number"));
    42      }
    43
    44      public void testFloatTag() throws IOException {
    45          assertEquals(new Double(1), getMapValue("number: !<tag:yaml.org,2002:float> 1", "number"));
    46      }
    47
    48      public void testFloatOut() throws IOException {
    49          Map<String, Object> map = new HashMap<String, Object>();
    50          map.put("number", new Double(1));
    51          String output = dump(map);
    52          assertEquals("{number: 1.0}\n", output);
    53      }
    54
    55      public void testBasicDoubleScalarLoad() {
    56          assertEquals(new Double(47.0), load("47.0"));
    57          assertEquals(new Double(0.0), load("0.0"));
    58          assertEquals(new Double(-1.0), load("-1.0"));
    59      }
    60
    61      public void testDumpStr() {
    62          assertEquals("'1.0'\n", dump("1.0"));
    63      }
    64
    65      public void testDump() {
    66          assertEquals("1.0\n", dump(1.0));
    67      }
    68
    69      /**
    70       * to test http://code.google.com/p/snakeyaml/issues/detail?id=130
    71       */
    72      public void testScientificFloatWithoutDecimalDot() throws IOException {
    73          assertEquals(new Double(8e-06), load("8e-06"));
    74          assertEquals(new Double(8e06), load("8e06"));
    75          assertEquals(new Double(8e06), load("8e+06"));
    76          assertEquals(new Double(8000e06), load("8_000e06"));
    77          assertEquals(new Double(123e-06), load("123e-06"));
    78      }
    79  }