Add some null strings.

Qowaiv · May 3, 2023 · e08842e · e08842e
1 parent 6cd6657
commit e08842e
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Showing 11 changed files with 17 additions and 26 deletions.
diff --git a/specs/Qowaiv.Specs/UnitTests.OldStyle/Financial/CurrencyTest.cs b/specs/Qowaiv.Specs/UnitTests.OldStyle/Financial/CurrencyTest.cs
@@ -124,8 +124,7 @@ public void IsEmptyOrUnknown_TestStruct_IsFalse()
     [Test]
     public void TryParse_Null_IsValid()
     {
-        string str = null;
-        Assert.IsTrue(Currency.TryParse(str, out Currency val), "Valid");
+        Assert.IsTrue(Currency.TryParse(Nil.String, out Currency val), "Valid");
         Assert.AreEqual(string.Empty, val.ToString(), "Value");
     }
 

diff --git a/specs/Qowaiv.Specs/UnitTests.OldStyle/Financial/InternationalBankAccountNumberTest.cs b/specs/Qowaiv.Specs/UnitTests.OldStyle/Financial/InternationalBankAccountNumberTest.cs
@@ -40,8 +40,7 @@ public void IsEmpty_Default_IsFalse()
     [Test]
     public void TryParse_Null_IsValid()
     {
-        string str = null;
-        Assert.IsTrue(InternationalBankAccountNumber.TryParse(str, out var val), "Valid");
+        Assert.IsTrue(InternationalBankAccountNumber.TryParse(Nil.String, out var val), "Valid");
         Assert.AreEqual(string.Empty, val.ToString(), "Value");
     }
 

diff --git a/specs/Qowaiv.Specs/UnitTests.OldStyle/Formatting/FormattingArgumentsTest.cs b/specs/Qowaiv.Specs/UnitTests.OldStyle/Formatting/FormattingArgumentsTest.cs
@@ -211,7 +211,7 @@ public void OperatorIsNot_TestStructTestStruct_IsFalse()
         [Test]
         public void Format_DefaultValue_StringNull()
         {
-            var exp = (String)null;
+            var exp = Nil.String;
             var act = FormattingArguments.None.Format;
             Assert.AreEqual(exp, act);
         }

diff --git a/specs/Qowaiv.Specs/UnitTests.OldStyle/Globalization/CountryTest.cs b/specs/Qowaiv.Specs/UnitTests.OldStyle/Globalization/CountryTest.cs
@@ -88,8 +88,7 @@ public void IsEmpty_Default_IsFalse()
     [Test]
     public void TryParse_Null_IsValid()
     {
-        string str = null;
-        Assert.IsTrue(Country.TryParse(str, out Country val), "Valid");
+        Assert.IsTrue(Country.TryParse(Nil.String, out Country val), "Valid");
         Assert.AreEqual(string.Empty, val.ToString(), "Value");
     }
 
@@ -176,15 +175,15 @@ public void from_invalid_as_null_with_TryParse()
     public void Create_RegionInfoNull_Empty()
     {
         var exp = Country.Empty;
-        var act = Country.Create((RegionInfo)null);
+        var act = Country.Create(Nil.Obj<RegionInfo>());
         Assert.AreEqual(exp, act);
     }
 
     [Test]
     public void Create_CultureInfoNull_Empty()
     {
         var exp = Country.Empty;
-        var act = Country.Create((CultureInfo)null);
+        var act = Country.Create(Nil.Obj<CultureInfo>());
         Assert.AreEqual(exp, act);
     }
 

diff --git a/specs/Qowaiv.Specs/UnitTests.OldStyle/HouseNumberTest.cs b/specs/Qowaiv.Specs/UnitTests.OldStyle/HouseNumberTest.cs
@@ -97,9 +97,7 @@ public void IsEmptyOrUnknown_TestStruct_IsFalse()
     [Test]
     public void TryParse_Null_IsValid()
     {
-        string str = null;
-
-        Assert.IsTrue(HouseNumber.TryParse(str, out HouseNumber val), "Valid");
+        Assert.IsTrue(HouseNumber.TryParse(Nil.String, out HouseNumber val), "Valid");
         Assert.AreEqual(string.Empty, val.ToString(), "Value");
     }
 

diff --git a/specs/Qowaiv.Specs/UnitTests.OldStyle/IO/StreamSizeTest.cs b/specs/Qowaiv.Specs/UnitTests.OldStyle/IO/StreamSizeTest.cs
@@ -267,7 +267,7 @@ public void ToString_CustomFormatter_SupportsCustomFormatting()
     [Test]
     public void ToString_Null_ComplexPattern()
     {
-        var act = TestStruct.ToString((String)null);
+        var act = TestStruct.ToString(Nil.String);
         var exp = "123456789";
         Assert.AreEqual(exp, act);
     }

diff --git a/specs/Qowaiv.Specs/UnitTests.OldStyle/LocalDateTimeTest.cs b/specs/Qowaiv.Specs/UnitTests.OldStyle/LocalDateTimeTest.cs
@@ -26,8 +26,7 @@ public void MinValue_None_EqualsDefault()
     [Test]
     public void TryParse_Null_IsNotValid()
     {
-        string str = null;
-        Assert.IsFalse(LocalDateTime.TryParse(str, out _), "Valid");
+        Assert.IsFalse(LocalDateTime.TryParse(Nil.String, out _), "Valid");
     }
 
     /// <summary>TryParse string.MinValue should be valid.</summary>

diff --git a/specs/Qowaiv.Specs/UnitTests.OldStyle/Statistics/EloTest.cs b/specs/Qowaiv.Specs/UnitTests.OldStyle/Statistics/EloTest.cs
@@ -46,8 +46,7 @@ public void GetZScore_Delta100_0Dot64()
         [Test]
         public void TryParse_Null_IsNotValid()
         {
-            string str = null;
-            Assert.IsFalse(Elo.TryParse(str, out _), "Valid");
+            Assert.IsFalse(Elo.TryParse(Nil.String, out _), "Valid");
         }
 
         /// <summary>TryParse string.Empty should not be valid.</summary>

diff --git a/specs/Qowaiv.Specs/UnitTests.OldStyle/Web/InternetMediaTypeTest.cs b/specs/Qowaiv.Specs/UnitTests.OldStyle/Web/InternetMediaTypeTest.cs
@@ -90,9 +90,7 @@ public void IsEmptyOrUnknown_TestStruct_IsFalse()
     [Test]
     public void TryParse_Null_IsValid()
     {
-        string str = null;
-
-        Assert.IsTrue(InternetMediaType.TryParse(str, out var val), "Valid");
+        Assert.IsTrue(InternetMediaType.TryParse(Nil.String, out var val), "Valid");
         Assert.AreEqual(string.Empty, val.ToString(), "Value");
     }
 
@@ -185,7 +183,7 @@ public void from_invalid_as_null_with_TryParse()
     [Test]
     public void FromFile_NullFileInfo_Empty()
     {
-        var act = InternetMediaType.FromFile((FileInfo)null);
+        var act = InternetMediaType.FromFile(Nil.Obj<FileInfo>());
         var exp = InternetMediaType.Empty;
 
         Assert.AreEqual(exp, act);
@@ -194,7 +192,7 @@ public void FromFile_NullFileInfo_Empty()
     [Test]
     public void FromFile_NullString_Empty()
     {
-        var act = InternetMediaType.FromFile((String)null);
+        var act = InternetMediaType.FromFile(Nil.String);
         var exp = InternetMediaType.Empty;
 
         Assert.AreEqual(exp, act);

diff --git a/src/Qowaiv/Globalization/Country.cs b/src/Qowaiv/Globalization/Country.cs
@@ -264,7 +264,7 @@ public static bool TryParse(string? s, IFormatProvider? formatProvider, out Coun
     /// Returns a country that represents the same region as region info.
     /// </returns>
     [Pure]
-    public static Country Create(RegionInfo region)
+    public static Country Create(RegionInfo? region)
     {
         if (region == null) { return default; }
         // In .NET, Serbia and Montenegro (CS) is still active.
@@ -285,7 +285,7 @@ public static Country Create(RegionInfo region)
     /// any, otherwise Empty.
     /// </returns>
     [Pure]
-    public static Country Create(CultureInfo culture)
+    public static Country Create(CultureInfo? culture)
     {
         if (culture == null || culture == CultureInfo.InvariantCulture || culture.IsNeutralCulture)
         {

diff --git a/src/Qowaiv/Web/InternetMediaType.cs b/src/Qowaiv/Web/InternetMediaType.cs
@@ -183,7 +183,7 @@ public static bool TryParse(string? s, IFormatProvider? provider, out InternetMe
     /// Based on the extension of the file.
     /// </remarks>
     [Pure]
-    public static InternetMediaType FromFile(FileInfo file)
+    public static InternetMediaType FromFile(FileInfo? file)
         => file is null
         ? Empty
         : FromFile(file.Name);
@@ -196,7 +196,7 @@ public static InternetMediaType FromFile(FileInfo file)
     /// Based on the extension of the filename.
     /// </remarks>
     [Pure]
-    public static InternetMediaType FromFile(string filename)
+    public static InternetMediaType FromFile(string? filename)
     {
         if (string.IsNullOrEmpty(filename))
         {