Joseph Doherty
48 lines
2.1 KiB
C#
48 lines
2.1 KiB
C#
using System.Data.Common;
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using Microsoft.Data.Sqlite;
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using ZB.MOM.WW.ScadaBridge.Commons.Interfaces.Services;
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using ZB.MOM.WW.ScadaBridge.Commons.Types;
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using ZB.MOM.WW.ScadaBridge.InboundAPI;
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using Xunit;
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public class InboundDatabaseHelperTests
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{
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private sealed class SqliteGateway : IDatabaseGateway
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{
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private readonly string _cs;
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public SqliteGateway(string cs) => _cs = cs;
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public async Task<DbConnection> GetConnectionAsync(string name, CancellationToken ct = default)
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{ var c = new SqliteConnection(_cs); await c.OpenAsync(ct); return c; }
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public Task<ExternalCallResult> CachedWriteAsync(string c, string s,
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IReadOnlyDictionary<string, object?>? p = null, string? o = null, CancellationToken ct = default,
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TrackedOperationId? t = null, Guid? e = null, string? src = null, Guid? pe = null)
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=> throw new NotImplementedException();
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}
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private static SqliteGateway SeededGateway()
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{
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var keep = new SqliteConnection("DataSource=file:movein?mode=memory&cache=shared");
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keep.Open(); // keep-alive: shared in-memory db lives until process exit
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using var cmd = keep.CreateCommand();
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cmd.CommandText = "CREATE TABLE IF NOT EXISTS Machine(Code TEXT, SAPID TEXT); DELETE FROM Machine; INSERT INTO Machine VALUES('Z28061A','131453');";
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cmd.ExecuteNonQuery();
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return new SqliteGateway("DataSource=file:movein?mode=memory&cache=shared");
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}
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[Fact]
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public void QuerySingle_returns_first_column_with_bound_parameter()
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{
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var helper = new InboundDatabaseHelper(SeededGateway(), CancellationToken.None);
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var code = helper.QuerySingle<string>("BTDB", "SELECT Code FROM Machine WHERE SAPID=@s", new { s = "131453" });
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Assert.Equal("Z28061A", code);
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}
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[Fact]
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public void QuerySingle_returns_default_when_no_rows()
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{
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var helper = new InboundDatabaseHelper(SeededGateway(), CancellationToken.None);
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var code = helper.QuerySingle<string>("BTDB", "SELECT Code FROM Machine WHERE SAPID=@s", new { s = "999999" });
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Assert.Null(code);
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}
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}
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