File: assert.vala

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/*
* Copyright (C) 2018-2025 Trevor Williams <phase1geo@icloud.com>
* 
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Lesser GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* 
* This program 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
* Lesser GNU General Public License for more details.
* 
* You should have received a copy of the Lesser GNU General Public License
* along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

namespace MinderTest {

  /**
   * The {@code Assert} class contains various helper functions for testing assertions
   *
   * @since 1.0.0
   */
  public class Assert {

    public static void string_compare (string? expected, string? actual, string compare = "==") {
      switch (compare) {
        case "!=":
          if (expected == actual) {
            warning ("Expected '" + expected + "', got '" + actual +"'");
            assert (expected != actual);
          }
          break;
        case "==":
        default:
          if (expected != actual) {
            warning ("Expected '" + expected + "' to not equal '" + actual +"'");
            assert (expected == actual);
          }
          break;
      }

    }

    public static void bool_compare (bool? expected, bool? actual, string compare = "==") {
      switch (compare) {
        case "!=":
          if (expected == actual) {
            warning ("Expected '" + expected.to_string () + "', got '" + actual.to_string () +"'");
            assert (expected != actual);
          }
          break;
        case "==":
        default:
          if (expected != actual) {
            warning ("Expected '" + expected.to_string () + "' to not equal '" + actual.to_string () +"'");
            assert (expected == actual);
          }
          break;
      }
    }

    public static void int_compare (int? expected, int? actual, string compare = "==") {
      switch (compare) {
        case ">":
          if (expected <= actual) {
            warning (expected.to_string () + " is less than or equal to " + actual.to_string ());
            assert (expected <= actual);
          }
          break;
        case ">=":
          if (expected < actual) {
            warning (expected.to_string () + " is less than " + actual.to_string ());
            assert (expected < actual);
          }
          break;
        case "<":
          if (expected >= actual) {
            warning (expected.to_string () + " is greater than or equal to " + actual.to_string ());
            assert (expected >= actual);
          }
          break;
        case "<=":
          if (expected > actual) {
            warning (expected.to_string () + " is greater than " + actual.to_string ());
            assert (expected > actual);
          }
          break;
        case "!=":
          if (expected == actual) {
            warning (expected.to_string () + " is equal to " + actual.to_string ());
            assert (expected != actual);
          }
          break;
        case "==":
        default:
          if (expected != actual) {
            warning (expected.to_string () + " is not equal to " + actual.to_string ());
            assert (expected == actual);
          }
          break;
      }
    }

    public static void float_compare (float? expected, float? actual, string compare = "==") {
      switch (compare) {
        case ">":
          if (expected <= actual) {
            warning (expected.to_string () + " is less than or equal to " + actual.to_string ());
            assert (expected <= actual);
          }
          break;
        case ">=":
          if (expected < actual) {
            warning (expected.to_string () + " is less than " + actual.to_string ());
            assert (expected < actual);
          }
          break;
        case "<":
          if (expected >= actual) {
            warning (expected.to_string () + " is greater than or equal to " + actual.to_string ());
            assert (expected >= actual);
          }
          break;
        case "<=":
          if (expected > actual) {
            warning (expected.to_string () + " is greater than " + actual.to_string ());
            assert (expected > actual);
          }
          break;
        case "!=":
          if (expected == actual) {
            warning (expected.to_string () + " is equal to " + actual.to_string ());
            assert (expected != actual);
          }
          break;
        case "==":
        default:
          if (expected != actual) {
            warning (expected.to_string () + " is not equal to " + actual.to_string ());
            assert (expected == actual);
          }
          break;
      }
    }

    public static void double_compare (double? expected, double? actual, string compare = "==") {
      switch (compare) {
        case ">":
          if (expected <= actual) {
            warning (expected.to_string () + " is less than or equal to " + actual.to_string ());
            assert (expected <= actual);
          }
          break;
        case ">=":
          if (expected < actual) {
            warning (expected.to_string () + " is less than " + actual.to_string ());
            assert (expected < actual);
          }
          break;
        case "<":
          if (expected >= actual) {
            warning (expected.to_string () + " is greater than or equal to " + actual.to_string ());
            assert (expected >= actual);
          }
          break;
        case "<=":
          if (expected > actual) {
            warning (expected.to_string () + " is greater than " + actual.to_string ());
            assert (expected > actual);
          }
          break;
        case "!=":
          if (expected == actual) {
            warning (expected.to_string () + " is equal to " + actual.to_string ());
            assert (expected != actual);
          }
          break;
        case "==":
        default:
          if (expected != actual) {
            warning (expected.to_string () + " is not equal to " + actual.to_string ());
            assert (expected == actual);
          }
          break;
      }
    }

    public static void true (bool? expected) {
      if (expected != true) {
        warning ("Expected '" + expected.to_string () + "' to be true");
      }

      assert (expected == true);
    }

    public static void false (bool? expected) {
      if (expected != false) {
        warning ("Expected '" + expected.to_string () + "' to be false");
      }

      assert (expected == false);
    }
  }
}