// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.

using System.Collections.Generic;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Reflection;
using WinForms.Common.Tests;
using Xunit;

namespace System.ComponentModel.Design.Tests
{
    public class DesignerActionMethodItemTests : IClassFixture<ThreadExceptionFixture>
    {
        public static IEnumerable<object[]> Ctor_DesignerActionList_String_String_String_String_Bool_TestData()
        {
            yield return new object[] { new DesignerActionList(null), "memberName", "displayName", "category", "description", false, "displayName" };
            yield return new object[] { new DesignerActionList(null), "member(&a)Name", "displa(&a)yName", "cate(&a)gory", "description", true, "displayName" };
            yield return new object[] { null, string.Empty, string.Empty, string.Empty, string.Empty, false, string.Empty };
            yield return new object[] { null, null, null, null, null, false, null };
        }

        [Theory]
        [MemberData(nameof(Ctor_DesignerActionList_String_String_String_String_Bool_TestData))]
        public void DesignerActionMethodItem_Ctor_DesignerActionList_String_String_String_String_Bool(DesignerActionList actionList, string memberName, string displayName, string category, string description, bool includeAsDesignerVerb, string expectedDisplayName)
        {
            var item = new DesignerActionMethodItem(actionList, memberName, displayName, category, description, includeAsDesignerVerb);
            Assert.Equal(memberName, item.MemberName);
            Assert.Equal(expectedDisplayName, item.DisplayName);
            Assert.Equal(category, item.Category);
            Assert.Equal(description, item.Description);
            Assert.Equal(includeAsDesignerVerb, item.IncludeAsDesignerVerb);
            Assert.False(item.AllowAssociate);
            Assert.Empty(item.Properties);
            Assert.Same(item.Properties, item.Properties);
            Assert.IsType<HybridDictionary>(item.Properties);
            Assert.True(item.ShowInSourceView);
            Assert.Null(item.RelatedComponent);
        }

        public static IEnumerable<object[]> Ctor_DesignerActionList_String_String_String_String_TestData()
        {
            yield return new object[] { new DesignerActionList(null), "memberName", "displayName", "category", "description", "displayName" };
            yield return new object[] { new DesignerActionList(null), "member(&a)Name", "displa(&a)yName", "cate(&a)gory", "description", "displayName" };
            yield return new object[] { null, string.Empty, string.Empty, string.Empty, string.Empty, string.Empty };
            yield return new object[] { null, null, null, null, null, null };
        }

        [Theory]
        [MemberData(nameof(Ctor_DesignerActionList_String_String_String_String_TestData))]
        public void DesignerActionMethodItem_Ctor_DesignerActionList_String_String_String_String(DesignerActionList actionList, string memberName, string displayName, string category, string description, string expectedDisplayName)
        {
            var item = new DesignerActionMethodItem(actionList, memberName, displayName, category, description);
            Assert.Equal(memberName, item.MemberName);
            Assert.Equal(expectedDisplayName, item.DisplayName);
            Assert.Equal(category, item.Category);
            Assert.Equal(description, item.Description);
            Assert.False(item.IncludeAsDesignerVerb);
            Assert.False(item.AllowAssociate);
            Assert.Empty(item.Properties);
            Assert.Same(item.Properties, item.Properties);
            Assert.IsType<HybridDictionary>(item.Properties);
            Assert.True(item.ShowInSourceView);
            Assert.Null(item.RelatedComponent);
        }

        public static IEnumerable<object[]> Ctor_DesignerActionList_String_String_String_Bool_TestData()
        {
            yield return new object[] { new DesignerActionList(null), "memberName", "displayName", "category", false, "displayName" };
            yield return new object[] { new DesignerActionList(null), "member(&a)Name", "displa(&a)yName", "cate(&a)gory", true, "displayName" };
            yield return new object[] { null, string.Empty, string.Empty, string.Empty, false, string.Empty };
            yield return new object[] { null, null, null, null, false, null };
        }

        [Theory]
        [MemberData(nameof(Ctor_DesignerActionList_String_String_String_Bool_TestData))]
        public void DesignerActionMethodItem_Ctor_DesignerActionList_String_String_String_Bool(DesignerActionList actionList, string memberName, string displayName, string category, bool includeAsDesignerVerb, string expectedDisplayName)
        {
            var item = new DesignerActionMethodItem(actionList, memberName, displayName, category, includeAsDesignerVerb);
            Assert.Equal(memberName, item.MemberName);
            Assert.Equal(expectedDisplayName, item.DisplayName);
            Assert.Equal(category, item.Category);
            Assert.Null(item.Description);
            Assert.Equal(includeAsDesignerVerb, item.IncludeAsDesignerVerb);
            Assert.False(item.AllowAssociate);
            Assert.Empty(item.Properties);
            Assert.Same(item.Properties, item.Properties);
            Assert.IsType<HybridDictionary>(item.Properties);
            Assert.True(item.ShowInSourceView);
            Assert.Null(item.RelatedComponent);
        }

        public static IEnumerable<object[]> Ctor_DesignerActionList_String_String_String_TestData()
        {
            yield return new object[] { new DesignerActionList(null), "memberName", "displayName", "category", "displayName" };
            yield return new object[] { new DesignerActionList(null), "member(&a)Name", "displa(&a)yName", "cate(&a)gory", "displayName" };
            yield return new object[] { null, string.Empty, string.Empty, string.Empty, string.Empty };
            yield return new object[] { null, null, null, null, null };
        }

        [Theory]
        [MemberData(nameof(Ctor_DesignerActionList_String_String_String_TestData))]
        public void DesignerActionMethodItem_Ctor_DesignerActionList_String_String_String(DesignerActionList actionList, string memberName, string displayName, string category, string expectedDisplayName)
        {
            var item = new DesignerActionMethodItem(actionList, memberName, displayName, category);
            Assert.Equal(memberName, item.MemberName);
            Assert.Equal(expectedDisplayName, item.DisplayName);
            Assert.Equal(category, item.Category);
            Assert.Null(item.Description);
            Assert.False(item.IncludeAsDesignerVerb);
            Assert.False(item.AllowAssociate);
            Assert.Empty(item.Properties);
            Assert.Same(item.Properties, item.Properties);
            Assert.IsType<HybridDictionary>(item.Properties);
            Assert.True(item.ShowInSourceView);
            Assert.Null(item.RelatedComponent);
        }

        public static IEnumerable<object[]> Ctor_DesignerActionList_String_String_Bool_TestData()
        {
            yield return new object[] { new DesignerActionList(null), "memberName", "displayName", false, "displayName" };
            yield return new object[] { new DesignerActionList(null), "member(&a)Name", "displa(&a)yName", true, "displayName" };
            yield return new object[] { null, string.Empty, string.Empty, false, string.Empty };
            yield return new object[] { null, null, null, false, null };
        }

        [Theory]
        [MemberData(nameof(Ctor_DesignerActionList_String_String_Bool_TestData))]
        public void DesignerActionMethodItem_Ctor_DesignerActionList_String_String_Bool(DesignerActionList actionList, string memberName, string displayName, bool includeAsDesignerVerb, string expectedDisplayName)
        {
            var item = new DesignerActionMethodItem(actionList, memberName, displayName, includeAsDesignerVerb);
            Assert.Equal(memberName, item.MemberName);
            Assert.Equal(expectedDisplayName, item.DisplayName);
            Assert.Null(item.Category);
            Assert.Null(item.Description);
            Assert.Equal(includeAsDesignerVerb, item.IncludeAsDesignerVerb);
            Assert.False(item.AllowAssociate);
            Assert.Empty(item.Properties);
            Assert.Same(item.Properties, item.Properties);
            Assert.IsType<HybridDictionary>(item.Properties);
            Assert.True(item.ShowInSourceView);
            Assert.Null(item.RelatedComponent);
        }

        public static IEnumerable<object[]> Ctor_DesignerActionList_String_String_TestData()
        {
            yield return new object[] { new DesignerActionList(null), "memberName", "displayName", "displayName" };
            yield return new object[] { new DesignerActionList(null), "member(&a)Name", "displa(&a)yName", "displayName" };
            yield return new object[] { null, string.Empty, string.Empty, string.Empty };
            yield return new object[] { null, null, null, null };
        }

        [Theory]
        [MemberData(nameof(Ctor_DesignerActionList_String_String_TestData))]
        public void DesignerActionMethodItem_Ctor_DesignerActionList_String_String(DesignerActionList actionList, string memberName, string displayName, string expectedDisplayName)
        {
            var item = new DesignerActionMethodItem(actionList, memberName, displayName);
            Assert.Equal(memberName, item.MemberName);
            Assert.Equal(expectedDisplayName, item.DisplayName);
            Assert.Null(item.Category);
            Assert.Null(item.Description);
            Assert.False(item.IncludeAsDesignerVerb);
            Assert.False(item.AllowAssociate);
            Assert.Empty(item.Properties);
            Assert.Same(item.Properties, item.Properties);
            Assert.IsType<HybridDictionary>(item.Properties);
            Assert.True(item.ShowInSourceView);
            Assert.Null(item.RelatedComponent);
        }

        public static IEnumerable<object[]> RelatedComponent_Set_TestData()
        {
            yield return new object[] { new Component() };
            yield return new object[] { null };
        }

        [Theory]
        [MemberData(nameof(RelatedComponent_Set_TestData))]
        public void DesignerActionMethodItem_RelatedComponent_Set_GetReturnsExpected(IComponent value)
        {
            var item = new DesignerActionMethodItem(null, "memberName", "displayName", "category", "description")
            {
                RelatedComponent = value
            };
            Assert.Same(value, item.RelatedComponent);

            // Set same.
            item.RelatedComponent = value;
            Assert.Same(value, item.RelatedComponent);
        }

        [Theory]
        [InlineData(nameof(SubDesignerActionList.PublicMethod))]
        [InlineData("PrivateMethod")]
        public void Invoke_ValidMemberName_ReturnsExpected(string memberName)
        {
            var list = new SubDesignerActionList();
            var item = new DesignerActionMethodItem(list, memberName, "displayName", "category", "description");
            item.Invoke();
            Assert.Equal(memberName, list.CalledMethod);

            // Call again to test caching behaviour.
            list.CalledMethod = null;
            item.Invoke();
            Assert.Equal(memberName, list.CalledMethod);
        }

        [Fact]
        public void Invoke_NullActionList_ThrowsInvalidOperationException()
        {
            var item = new DesignerActionMethodItem(null, "memberName", "displayName", "category", "description");
            Assert.Throws<InvalidOperationException>(() => item.Invoke());
        }

        [Theory]
        [InlineData("")]
        [InlineData("NoSuchMember")]
        [InlineData(nameof(SubDesignerActionList.StaticMethod))]
        public void Invoke_NoSuchMemberName_ThrowsInvalidOperationException(string memberName)
        {
            var list = new SubDesignerActionList();
            var item = new DesignerActionMethodItem(list, memberName, "displayName", "category", "description");
            Assert.Throws<InvalidOperationException>(() => item.Invoke());
        }

        [Fact]
        public void Invoke_NullMemberName_ThrowsArgumentNullException()
        {
            var list = new SubDesignerActionList();
            var item = new DesignerActionMethodItem(list, null, "displayName", "category", "description");
            Assert.Throws<ArgumentNullException>("name", () => item.Invoke());
        }

        [Fact]
        public void Invoke_MemberWithParameters_ThrowsTargetParameterCountException()
        {
            var list = new SubDesignerActionList();
            var item = new DesignerActionMethodItem(list, nameof(SubDesignerActionList.MethodWithParameters), "displayName", "category", "description");
            Assert.Throws<TargetParameterCountException>(() => item.Invoke());
        }

        private class SubDesignerActionList : DesignerActionList
        {
            public SubDesignerActionList() : base(null)
            {
            }

            public string CalledMethod { get; set; }

            public void PublicMethod()
            {
                Assert.Null(CalledMethod);
                CalledMethod = nameof(PublicMethod);
            }

            private void PrivateMethod()
            {
                Assert.Null(CalledMethod);
                CalledMethod = nameof(PrivateMethod);
            }

            public static void StaticMethod()
            {
                throw new InvalidOperationException();
            }

            public void MethodWithParameters(object o)
            {
                throw new InvalidOperationException();
            }
        }
    }
}
