feat: more boolean extensions methods

src/BB84.Extensions/BooleanExtensions.IsFalse.cs

@@ -3,10 +3,18 @@
 public static partial class BooleanExtensions
 {
 	/// <summary>
-	/// Checks if the provided value is false.
+	/// Checks if the provided <paramref name="value"/> is <see langword="false"/>.
 	/// </summary>
-	/// <param name="boolValue">The <see cref="bool"/> value to work with.</param>
-	/// <returns><see langword="true"/> or <see langword="false"/></returns>
-	public static bool IsFalse(this bool boolValue)
-		=> boolValue.Equals(false);
+	/// <param name="value">The <see cref="bool"/> value to work with.</param>
+	/// <returns><see langword="true"/> if the <paramref name="value"/> is false, otherwise <see langword="false"/></returns>
+	public static bool IsFalse(this bool value)
+		=> value.Equals(false);
+
+	/// <summary>
+	/// Checks if the provided <paramref name="value"/> is <see langword="false"/>.
+	/// </summary>
+	/// <param name="value">The nullable <see cref="bool"/> value to work with.</param>
+	/// <returns><see langword="true"/> if the <paramref name="value"/> is false, otherwise <see langword="false"/></returns>
+	public static bool IsFalse(this bool? value)
+		=> value.HasValue && value.Value.Equals(false);
 }

src/BB84.Extensions/BooleanExtensions.IsTrue.cs

@@ -3,10 +3,18 @@
 public static partial class BooleanExtensions
 {
 	/// <summary>
-	/// Checks if the provided value is true.
+	/// Checks if the provided <paramref name="value"/> is <see langword="true"/>.
 	/// </summary>
-	/// <param name="boolValue">The <see cref="bool"/> value to work with.</param>
-	/// <returns><see langword="true"/> or <see langword="false"/></returns>
-	public static bool IsTrue(this bool boolValue)
-		=> boolValue.Equals(true);
+	/// <param name="value">The <see cref="bool"/> value to work with.</param>
+	/// <returns><see langword="true"/> if the <paramref name="value"/> is true, otherwise <see langword="false"/></returns>
+	public static bool IsTrue(this bool value)
+		=> value.Equals(true);
+
+	/// <summary>
+	/// Checks if the provided <paramref name="value"/> is <see langword="true"/>.
+	/// </summary>
+	/// <param name="value">The nullable <see cref="bool"/> value to work with.</param>
+	/// <returns><see langword="true"/> if the <paramref name="value"/> is true, otherwise <see langword="false"/></returns>
+	public static bool IsTrue(this bool? value)
+		=> value.HasValue && value.Value.Equals(true);
 }

tests/BB84.ExtensionsTests/BooleanExtensionsTests.IsFalse.cs

@@ -9,4 +9,11 @@ public partial class BooleanExtensionsTests
 	[DataRow(false, true)]
 	public void IsFalseTest(bool value, bool expected)
 		=> Assert.AreEqual(expected, value.IsFalse());
+
+	[DataTestMethod]
+	[DataRow(true, false)]
+	[DataRow(false, true)]
+	[DataRow(null, false)]
+	public void NullableIsFalseTest(bool? value, bool expected)
+		=> Assert.AreEqual(expected, value.IsFalse());
 }

tests/BB84.ExtensionsTests/BooleanExtensionsTests.IsTrue.cs

@@ -9,4 +9,11 @@ public partial class BooleanExtensionsTests
 	[DataRow(false, false)]
 	public void IsTrueTest(bool value, bool expected)
 		=> Assert.AreEqual(expected, value.IsTrue());
+
+	[DataTestMethod]
+	[DataRow(true, true)]
+	[DataRow(false, false)]
+	[DataRow(null, false)]
+	public void NullableIsTrueTest(bool? value, bool expected)
+		=> Assert.AreEqual(expected, value.IsTrue());
 }