fix: add tests, add missing copyrights

Author: mtu

src/Yaapii.Atoms/Collection/ArrayListAsCollection.cs

@@ -22,7 +22,7 @@
 
 using System.Collections;
 using System.Collections.Concurrent;
-using Yaapii.Atoms.Scalar;
+using Yaapii.Atoms.Func;
 
 namespace Yaapii.Atoms.Collection
 {

src/Yaapii.Atoms/Enumerable/LessThan.cs

@@ -1,3 +1,25 @@
+// MIT License
+//
+// Copyright(c) 2022 ICARUS Consulting GmbH
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
 using System;
 using System.Collections;
 using Yaapii.Atoms.Scalar;

src/Yaapii.Atoms/Enumerable/MoreThan.cs

@@ -1,3 +1,25 @@
+// MIT License
+//
+// Copyright(c) 2022 ICARUS Consulting GmbH
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
 using System;
 using System.Collections;
 using Yaapii.Atoms.Scalar;

src/Yaapii.Atoms/Enumerable/None.cs

@@ -1,7 +1,24 @@
-using System;
-using System.Collections;
-using System.Collections.Generic;
-using System.Text;
+// MIT License
+//
+// Copyright(c) 2022 ICARUS Consulting GmbH
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
 
 namespace Yaapii.Atoms.Enumerable
 {

src/Yaapii.Atoms/Map/EmptyMap.cs

@@ -3,14 +3,38 @@
 namespace Yaapii.Atoms.Map
 {
     /// <summary>
-    /// A map without entries
+    /// A map which is empty.
     /// </summary>
     public sealed class EmptyMap : MapEnvelope
     {
         /// <summary>
-        /// A map without entries
+        /// A map which is empty.
         /// </summary>
-        public EmptyMap() : base(() => new MapOf(new ManyOf()), false)
+        public EmptyMap() : base(() => new MapOf(), false)
+        { }
+    }
+
+    /// <summary>
+    /// A map which is empty.
+    /// </summary>
+    public sealed class EmptyMap<Value> : MapEnvelope<Value>
+    {
+        /// <summary>
+        /// A map which is empty.
+        /// </summary>
+        public EmptyMap() : base(() => new MapOf<Value>(), false)
+        { }
+    }
+
+    /// <summary>
+    /// A map which is empty.
+    /// </summary>
+    public sealed class EmptyMap<Key, Value> : MapEnvelope<Key, Value>
+    {
+        /// <summary>
+        /// A map which is empty.
+        /// </summary>
+        public EmptyMap() : base(() => new MapOf<Key, Value>(), false)
         { }
     }
 }