BooleanAsserts.cs

using Xunit.Sdk;

namespace Xunit
{
#if XUNIT_VISIBILITY_INTERNAL 
    internal
#else
    public
#endif
    partial class Assert
    {
        /// <summary>
        /// Verifies that the condition is false.
        /// </summary>
        /// <param name="condition">The condition to be tested</param>
        /// <exception cref="FalseException">Thrown if the condition is not false</exception>
        public static void False(bool condition)
        {
            False((bool?)condition, null);
        }

        /// <summary>
        /// Verifies that the condition is false.
        /// </summary>
        /// <param name="condition">The condition to be tested</param>
        /// <exception cref="FalseException">Thrown if the condition is not false</exception>
        public static void False(bool? condition)
        {
            False(condition, null);
        }

        /// <summary>
        /// Verifies that the condition is false.
        /// </summary>
        /// <param name="condition">The condition to be tested</param>
        /// <param name="userMessage">The message to show when the condition is not false</param>
        /// <exception cref="FalseException">Thrown if the condition is not false</exception>
        public static void False(bool condition, string userMessage)
        {
            False((bool?)condition, userMessage);
        }

        /// <summary>
        /// Verifies that the condition is false.
        /// </summary>
        /// <param name="condition">The condition to be tested</param>
        /// <param name="userMessage">The message to show when the condition is not false</param>
        /// <exception cref="FalseException">Thrown if the condition is not false</exception>
        public static void False(bool? condition, string userMessage)
        {
            if (!condition.HasValue || condition.GetValueOrDefault())
                throw new FalseException(userMessage, condition);
        }

        /// <summary>
        /// Verifies that an expression is true.
        /// </summary>
        /// <param name="condition">The condition to be inspected</param>
        /// <exception cref="TrueException">Thrown when the condition is false</exception>
        public static void True(bool condition)
        {
            True((bool?)condition, null);
        }

        /// <summary>
        /// Verifies that an expression is true.
        /// </summary>
        /// <param name="condition">The condition to be inspected</param>
        /// <exception cref="TrueException">Thrown when the condition is false</exception>
        public static void True(bool? condition)
        {
            True(condition, null);
        }

        /// <summary>
        /// Verifies that an expression is true.
        /// </summary>
        /// <param name="condition">The condition to be inspected</param>
        /// <param name="userMessage">The message to be shown when the condition is false</param>
        /// <exception cref="TrueException">Thrown when the condition is false</exception>
        public static void True(bool condition, string userMessage)
        {
            True((bool?)condition, userMessage);
        }

        /// <summary>
        /// Verifies that an expression is true.
        /// </summary>
        /// <param name="condition">The condition to be inspected</param>
        /// <param name="userMessage">The message to be shown when the condition is false</param>
        /// <exception cref="TrueException">Thrown when the condition is false</exception>
        public static void True(bool? condition, string userMessage)
        {
            if (!condition.HasValue || !condition.GetValueOrDefault())
                throw new TrueException(userMessage, condition);
        }
    }
}