SourceDecoderTests.cs

// Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.

using Microsoft.PowerPlatform.Formulas.Tools;
using Microsoft.PowerPlatform.Formulas.Tools.IO;

namespace PAModelTests;

// Test that a series of .msapps can successfully roundtrip. 
[TestClass]
public class SourceDecoderTests
{
    // Compare actual source output. This catches things like:
    // - are we removing default properties, from both Theme Json and Template xmL?
    // - canonical ordering and stable output 
    [DataTestMethod]
    [DataRow("MyWeather.msapp", "", "Screen1.fx.yaml", "Weather_Screen1.fx.yaml")]
    [DataRow("GroupControlTest.msapp", "", "Screen1.fx.yaml", "GroupControl_Test.fx.yaml")]
    [DataRow("GalleryTestApp.msapp", "", "Screen1.fx.yaml", "Gallery_ScreenTest.fx.yaml")]
    [DataRow("SimpleScopeVariables.msapp", "Components", "Component1.fx.yaml", "ComponentFunction_Test.fx.yaml")]
    [DataRow("TestStudio_Test.msapp", "Tests", "Suite.fx.yaml", "TestStudio_Test_Suite.fx.yaml")]
    [DataRow("TestStudio_Test.msapp", "Tests", "Test_7F478737223C4B69.fx.yaml", "TestStudio_Test.fx.yaml")]
    [DataRow("autolayouttest.msapp", "", "Screen1.fx.yaml", "AutoLayout_test.fx.yaml")]
    public void TestScreenBaselines(string appName, string basePath, string sourceFileName, string screenBaselineName)
    {
        // Pull both the msapp and the baseline from our embedded resources. 
        var root = Path.Combine(Environment.CurrentDirectory, "Apps", appName);
        Assert.IsTrue(File.Exists(root));

        (var msapp, var errors) = CanvasDocument.LoadFromMsapp(root);
        errors.ThrowOnErrors();

        // validate the source 
        using (var tempDir = new TempDir())
        {
            var outSrcDir = tempDir.Dir;
            msapp.SaveToSources(outSrcDir);

            var pathActual = Path.Combine(outSrcDir, "Src", basePath, sourceFileName);
            var pathExpected = Path.Combine(Environment.CurrentDirectory, "SrcBaseline", screenBaselineName);


            // TODO - as the format stabalizes, we can compare more aggressively.
            AssertFilesEqual(pathExpected, pathActual);
        }
    }

    private static void AssertFilesEqual(string pathExpected, string pathActual)
    {
        var expected = File.ReadAllText(pathExpected).Replace("\r\n", "\n").Trim();
        var actual = File.ReadAllText(pathActual).Replace("\r\n", "\n").Trim();

        Assert.AreEqual(expected, actual);
    }
}