Add framework for SQLite data tests

src/MyWebLog.Data/SQLiteData.fs

@@ -1,5 +1,6 @@
 namespace MyWebLog.Data
 
+open System
 open System.Threading.Tasks
 open BitBadger.Documents
 open BitBadger.Documents.Sqlite
@@ -221,8 +222,7 @@ type SQLiteData(conn: SqliteConnection, log: ILogger<SQLiteData>, ser: JsonSeria
                       TranscriptCaptions = Map.tryBoolean  "transcript_captions" epRdr
                       SeasonNumber       = Map.tryInt      "season_number"       epRdr
                       SeasonDescription  = Map.tryString   "season_description"  epRdr
-                      EpisodeNumber      = Map.tryString   "episode_number"      epRdr
-                                           |> Option.map System.Double.Parse
+                      EpisodeNumber      = Map.tryString   "episode_number"      epRdr |> Option.map Double.Parse
                       EpisodeDescription = Map.tryString   "episode_description" epRdr }
             } |> List.ofSeq
         epRdr.Close()
@@ -235,8 +235,8 @@ type SQLiteData(conn: SqliteConnection, log: ILogger<SQLiteData>, ser: JsonSeria
             cmd.Parameters.Clear())
         
         logStep "Migrating dates/times"
-        let inst (dt: System.DateTime) =
-            System.DateTime(dt.Ticks, System.DateTimeKind.Utc)
+        let inst (dt: DateTime) =
+            DateTime(dt.Ticks, DateTimeKind.Utc)
             |> (Instant.FromDateTimeUtc >> Noda.toSecondsPrecision)
         // page.updated_on, page.published_on
         cmd.CommandText <- "SELECT id, updated_on, published_on FROM page"

src/MyWebLog.Tests/CategoryDataTests.fs

@@ -0,0 +1,15 @@
+module CategoryDataTests
+
+open Expecto
+open MyWebLog
+open MyWebLog.Data
+
+/// Tests for the Add method
+let addTests (data: IData) = task {
+    let category =
+        { Category.Empty with Id = CategoryId "added-cat"; WebLogId = WebLogId "test"; Name = "Added"; Slug = "added" }
+    do! data.Category.Add category 
+    let! stored = data.Category.FindById (CategoryId "added-cat") (WebLogId "test")
+    Expect.isSome stored "The category should have been added"
+}
+

src/MyWebLog.Tests/MyWebLog.Tests.fsproj

@@ -10,6 +10,8 @@
     <Compile Include="ViewModelsTests.fs" />
     <Compile Include="ConvertersTests.fs" />
     <Compile Include="UtilsTests.fs" />
+    <Compile Include="CategoryDataTests.fs" />
+    <Compile Include="SQLiteDataTests.fs" />
     <Compile Include="Program.fs" />
     <Content Include="root-weblog.json" />
   </ItemGroup>

src/MyWebLog.Tests/Program.fs

@@ -2,7 +2,7 @@
 
 let allTests = testList "MyWebLog" [
     testList "Domain" [ SupportTypesTests.all; DataTypesTests.all; ViewModelsTests.all ]
-    testList "Data" [ ConvertersTests.all; UtilsTests.all ]
+    testList "Data" [ ConvertersTests.all; UtilsTests.all; SQLiteDataTests.all ]
 ]
 
 [<EntryPoint>]

src/MyWebLog.Tests/SQLiteDataTests.fs

@@ -0,0 +1,59 @@
+module SQLiteDataTests
+
+open BitBadger.Documents
+open Expecto
+open Microsoft.Extensions.Logging.Abstractions
+open MyWebLog
+open MyWebLog.Converters
+open MyWebLog.Data
+open Newtonsoft.Json
+
+/// JSON serializer 
+let ser = Json.configure (JsonSerializer.CreateDefault())
+
+/// Create a SQLiteData instance for testing
+let mkData () =
+    Sqlite.Configuration.useConnectionString "Data Source=./test-db.db"
+    let conn = Sqlite.Configuration.dbConn ()
+    SQLiteData(conn, NullLogger<SQLiteData>(), ser) :> IData
+
+/// Dispose the connection associated with the SQLiteData instance
+let dispose (data: IData) =
+    (data :?> SQLiteData).Conn.Dispose()
+
+/// Set up the environment for the SQLite tests
+let environmentSetUp = testList "Environment" [
+    testTask "creating database" {
+        let data = mkData ()
+        try
+            do! data.StartUp()
+            do! Maintenance.Backup.restoreBackup "root-weblog.json" None false data
+        finally dispose data
+    }
+]
+
+/// Integration tests for the Category implementation in SQLite
+let categoryTests = testList "Category" [
+    testTask "Add succeeds" {
+        let data = mkData ()
+        try do! CategoryDataTests.addTests data
+        finally dispose data
+    }
+]
+
+
+open System.IO
+
+/// Delete the SQLite database
+let environmentCleanUp = test "Clean Up" {
+    File.Delete "test-db.db"
+    Expect.isFalse (File.Exists "test-db.db") "The test SQLite database should have been deleted"
+} 
+
+/// All SQLite data tests
+let all =
+    testList "SQLiteData"
+        [ environmentSetUp
+          categoryTests
+          environmentCleanUp ]
+    |> testSequenced

src/MyWebLog/Maintenance.fs

@@ -395,7 +395,7 @@ module Backup =
     }
     
     /// Decide whether to restore a backup
-    let private restoreBackup fileName newUrlBase promptForOverwrite data = task {
+    let internal restoreBackup fileName newUrlBase promptForOverwrite data = task {
         
         let serializer = getSerializer false
         use stream     = new FileStream(fileName, FileMode.Open)

src/MyWebLog/MyWebLog.fsproj

@@ -42,4 +42,10 @@
     <None Include=".\wwwroot\upload\*" CopyToOutputDirectory="Always" />
   </ItemGroup>
 
+  <ItemGroup>
+    <AssemblyAttribute Include="System.Runtime.CompilerServices.InternalsVisibleToAttribute">
+      <_Parameter1>MyWebLog.Tests</_Parameter1>
+    </AssemblyAttribute>
+  </ItemGroup>
+
 </Project>