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EvaluatorTest.java 2.3KB

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  1. /*
  2. * Copyright (c) 2006-2014 DMDirc Developers
  3. *
  4. * Permission is hereby granted, free of charge, to any person obtaining a copy
  5. * of this software and associated documentation files (the "Software"), to deal
  6. * in the Software without restriction, including without limitation the rights
  7. * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  8. * copies of the Software, and to permit persons to whom the Software is
  9. * furnished to do so, subject to the following conditions:
  10. *
  11. * The above copyright notice and this permission notice shall be included in
  12. * all copies or substantial portions of the Software.
  13. *
  14. * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15. * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16. * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  17. * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18. * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  19. * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  20. * SOFTWARE.
  21. */
  22. package com.dmdirc.addons.calc;
  23. import java.text.ParseException;
  24. import java.util.Arrays;
  25. import java.util.List;
  26. import org.junit.Test;
  27. import org.junit.runner.RunWith;
  28. import org.junit.runners.Parameterized;
  29. import static org.junit.Assert.*;
  30. @RunWith(Parameterized.class)
  31. public class EvaluatorTest {
  32. private final String input;
  33. private final float output;
  34. public EvaluatorTest(String input, String output) {
  35. this.input = input;
  36. this.output = Float.parseFloat(output);
  37. }
  38. @Test
  39. public void testEvaluator() throws ParseException {
  40. final Parser p = new Parser(new Lexer(input));
  41. final Evaluator e = new Evaluator(p.parse());
  42. assertEquals(output, e.evaluate().floatValue(), 0.01);
  43. }
  44. @Parameterized.Parameters
  45. public static List<Object[]> data() {
  46. final Object[][] data = {
  47. {"1", "1"},
  48. {"-1", "-1"},
  49. {"1+1", "2"},
  50. {"(1)", "1"},
  51. {"(((1)))", "1"},
  52. {"2(1*1)", "2"},
  53. {"2+2*3/4-1", "2.5"},
  54. {"1.0000(17.5+0.5)(1.000)", "18"},
  55. {"2^3", "8"},
  56. {"+3", "3"},
  57. {"20%5", "0"},
  58. };
  59. return Arrays.asList(data);
  60. }
  61. }