From b81a66ff49f5d9305108e92a009449ee5994862e Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Thu, 12 Nov 2020 20:03:31 +0800
Subject: test: Write tests for user permission service.

---
 .../Services/UserPermissionServiceTest.cs          | 118 +++++++++++++++++++++
 1 file changed, 118 insertions(+)
 create mode 100644 BackEnd/Timeline.Tests/Services/UserPermissionServiceTest.cs

(limited to 'BackEnd/Timeline.Tests/Services/UserPermissionServiceTest.cs')

diff --git a/BackEnd/Timeline.Tests/Services/UserPermissionServiceTest.cs b/BackEnd/Timeline.Tests/Services/UserPermissionServiceTest.cs
new file mode 100644
index 00000000..cea11b34
--- /dev/null
+++ b/BackEnd/Timeline.Tests/Services/UserPermissionServiceTest.cs
@@ -0,0 +1,118 @@
+using FluentAssertions;
+using System;
+using System.Threading.Tasks;
+using Timeline.Services;
+using Timeline.Services.Exceptions;
+using Xunit;
+
+namespace Timeline.Tests.Services
+{
+    public class UserPermissionServiceTest : DatabaseBasedTest
+    {
+        private UserPermissionService _service;
+
+        public UserPermissionServiceTest()
+        {
+
+        }
+
+        protected override void OnDatabaseCreated()
+        {
+            _service = new UserPermissionService(Database);
+        }
+
+        [Fact]
+        public async Task GetPermissionsOfRootUserShouldReturnAll()
+        {
+            var permission = await _service.GetPermissionsOfUserAsync(1);
+            permission.Should().BeEquivalentTo(Enum.GetValues<UserPermission>());
+        }
+
+        [Fact]
+        public async Task GetPermissionsOfNonRootUserShouldReturnNone()
+        {
+            var permission = await _service.GetPermissionsOfUserAsync(2);
+            permission.Should().BeEmpty();
+        }
+
+        [Fact]
+        public async Task GetPermissionsOfInexistentUserShouldThrow()
+        {
+            await _service.Awaiting(s => s.GetPermissionsOfUserAsync(10)).Should().ThrowAsync<UserNotExistException>();
+        }
+
+        [Fact]
+        public async Task GetPermissionsOfInexistentUserShouldNotThrowIfNotCheck()
+        {
+            await _service.Awaiting(s => s.GetPermissionsOfUserAsync(10, false)).Should().NotThrowAsync();
+        }
+
+        [Fact]
+        public async Task ModifyPermissionOnRootUserShouldHaveNoEffect()
+        {
+            await _service.AddPermissionToUserAsync(1, UserPermission.AllTimelineManagement);
+            {
+                var permission = await _service.GetPermissionsOfUserAsync(1);
+                permission.Should().BeEquivalentTo(Enum.GetValues<UserPermission>());
+            }
+            await _service.RemovePermissionFromUserAsync(1, UserPermission.AllTimelineManagement);
+            {
+                var permission = await _service.GetPermissionsOfUserAsync(1);
+                permission.Should().BeEquivalentTo(Enum.GetValues<UserPermission>());
+            }
+        }
+
+        [Fact]
+        public async Task ModifyPermissionOnNonRootUserShouldWork()
+        {
+            await _service.AddPermissionToUserAsync(2, UserPermission.AllTimelineManagement);
+            {
+                var permission = await _service.GetPermissionsOfUserAsync(2);
+                permission.Should().BeEquivalentTo(UserPermission.AllTimelineManagement);
+            }
+            await _service.AddPermissionToUserAsync(2, UserPermission.HighlightTimelineManangement);
+            {
+                var permission = await _service.GetPermissionsOfUserAsync(2);
+                permission.Should().BeEquivalentTo(UserPermission.AllTimelineManagement, UserPermission.HighlightTimelineManangement);
+            }
+
+            // Add duplicate permission should work.
+            await _service.AddPermissionToUserAsync(2, UserPermission.HighlightTimelineManangement);
+            {
+                var permission = await _service.GetPermissionsOfUserAsync(2);
+                permission.Should().BeEquivalentTo(UserPermission.AllTimelineManagement, UserPermission.HighlightTimelineManangement);
+            }
+
+            await _service.RemovePermissionFromUserAsync(2, UserPermission.HighlightTimelineManangement);
+            {
+                var permission = await _service.GetPermissionsOfUserAsync(2);
+                permission.Should().BeEquivalentTo(UserPermission.AllTimelineManagement);
+            }
+
+            // Remove non-owned permission should work.
+            await _service.RemovePermissionFromUserAsync(2, UserPermission.HighlightTimelineManangement);
+            {
+                var permission = await _service.GetPermissionsOfUserAsync(2);
+                permission.Should().BeEquivalentTo(UserPermission.AllTimelineManagement);
+            }
+        }
+
+        [Fact]
+        public async Task AddPermissionToInexistentUserShouldThrown()
+        {
+            await _service.Awaiting(s => s.AddPermissionToUserAsync(10, UserPermission.HighlightTimelineManangement)).Should().ThrowAsync<UserNotExistException>();
+        }
+
+        [Fact]
+        public async Task RemovePermissionFromInexistentUserShouldThrown()
+        {
+            await _service.Awaiting(s => s.RemovePermissionFromUserAsync(10, UserPermission.HighlightTimelineManangement)).Should().ThrowAsync<UserNotExistException>();
+        }
+
+        [Fact]
+        public async Task RemovePermissionFromInexistentUserShouldNotThrownIfNotCheck()
+        {
+            await _service.Awaiting(s => s.RemovePermissionFromUserAsync(10, UserPermission.HighlightTimelineManangement, false)).Should().NotThrowAsync();
+        }
+    }
+}
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