Extract dependency free API and tests

JsonLD.Infrastructure.Text.Tests/ConformanceTests.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+using Xunit;
+using System.IO;
+using JsonLD.Core;
+using JsonLD.Util;
+using JsonLD.Test;
+
+namespace JsonLD.Infrastructure.Text.Tests
+{
+    public class ConformanceTests
+    {
+        [Theory, ClassData(typeof(ConformanceCases))]
+        public void ConformanceTestPasses(string id, ConformanceCase conformanceCase)
+        {
+            string result;
+            try
+            {
+                result = conformanceCase.run();
+                if (!JsonLdUtils.DeepCompareStrings(result, conformanceCase.output))
+                {
+#if DEBUG
+                    Console.WriteLine(id);
+                    Console.WriteLine("Actual:");
+                    Console.Write(JSONUtils.ToPrettyString(result));
+                    Console.WriteLine("--------------------------");
+                    Console.WriteLine("Expected:");
+                    Console.Write(JSONUtils.ToPrettyString(conformanceCase.output));
+                    Console.WriteLine("--------------------------");
+#endif
+
+                    Assert.True(false, "Returned JSON doesn't match expectations.");
+                }
+
+            }
+            catch (Exception ex)
+            {
+                if (conformanceCase.error == default) throw; // unexpected error
+                Assert.True(ex.Message.StartsWith(conformanceCase.error), "Resulting error doesn't match expectations.");
+            }
+        }
+    }
+
+    public class ConformanceCase
+    {
+        public string input { get; set; }
+        public string context { get; set; }
+        public string frame { get; set; }
+        public string output { get; set; }
+        public string error { get; set; }
+        public Func<string> run { get; set; }
+    }
+
+    public class ConformanceCases : IEnumerable<object[]>
+    {
+        string[] manifests = new[] {
+            "compact-manifest.jsonld",
+            "expand-manifest.jsonld",
+            "flatten-manifest.jsonld",
+            "frame-manifest.jsonld",
+            "toRdf-manifest.jsonld",
+            "fromRdf-manifest.jsonld",
+            "normalize-manifest.jsonld",
+// Test tests are not supported on CORE CLR
+#if !PORTABLE && !IS_CORECLR
+            "error-manifest.jsonld",
+            "remote-doc-manifest.jsonld",
+#endif
+        };
+
+        public ConformanceCases()
+        {
+
+        }
+
+        public IEnumerator<object[]> GetEnumerator()
+        {            
+            var rootDirectory = "W3C";
+
+            foreach (string manifest in manifests)
+            {
+                var testCases = JsonFetcher.GetTestCases(manifest, rootDirectory);
+
+                foreach (var testCase in testCases.Sequence)
+                {
+                    Func<string> run;
+                    ConformanceCase newCase = new ConformanceCase();
+
+                    try
+                    {
+                        newCase.input = testCase.GetInputJson();
+                        newCase.context = testCase.GetContextJson();
+                        newCase.frame = testCase.GetFrameJson();
+                    }
+                    catch (Exception ex)
+                    {
+                        throw new Exception($"{testCase.Id} in {testCases.Name}", ex);
+                    }
+
+                    var options = new JsonLD.Infrastructure.Text.JsonLdOptions("http://json-ld.org/test-suite/tests/" + testCase.Input);
+
+                    var testType = testCase.Type;
+
+                    if (testType.Any((s) => s == "jld:NegativeEvaluationTest"))
+                    {
+                        newCase.error = testCase.Expect;
+                    }
+                    else if (testType.Any((s) => s == "jld:PositiveEvaluationTest"))
+                    {
+                        if (testType.Any((s) => new List<string> { "jld:ToRDFTest", "jld:NormalizeTest" }.Contains(s)))
+                        {
+                            newCase.output = File.ReadAllText(Path.Combine("W3C", testCase.Expect));
+                        }
+                        else if (testType.Any((s) => s == "jld:FromRDFTest"))
+                        {
+                            newCase.input = File.ReadAllText(Path.Combine("W3C", testCase.Input));
+                            newCase.output = testCase.GetExpectJson();
+                        }
+                        else
+                        {
+                            newCase.output = testCase.GetExpectJson();
+                        }
+                    }
+                    else
+                    {
+                        throw new Exception("Expecting either positive or negative evaluation test.");
+                    }
+
+                    if (testCase.Options != null)
+                    {
+                        if (testCase.Options.CompactArrays.HasValue)
+                        {
+                            options.SetCompactArrays(testCase.Options.CompactArrays.Value);
+                        }
+                        if (testCase.Options.Base != default)
+                        {
+                            options.SetBase(testCase.Options.Base);
+                        }
+                        if (testCase.Options.ExpandContext != default)
+                        {
+                            newCase.context = testCase.GetExpandContextJson();
+                            options.SetExpandContext(newCase.context);
+                        }
+                        if (testCase.Options.ProduceGeneralizedRdf.HasValue)
+                        {
+                            options.SetProduceGeneralizedRdf(testCase.Options.ProduceGeneralizedRdf.Value);
+                        }
+                        if (testCase.Options.UseNativeTypes.HasValue)
+                        {
+                            options.SetUseNativeTypes(testCase.Options.UseNativeTypes.Value);
+                        }
+                        if (testCase.Options.UseRdfType.HasValue)
+                        {
+                            options.SetUseRdfType(testCase.Options.UseRdfType.Value);
+                        }
+                    }
+
+                    if (testType.Any((s) => s == "jld:CompactTest"))
+                    {
+                        run = () => Infrastructure.Text.JsonLdProcessor.Compact(newCase.input, newCase.context, options);
+                    }
+                    else if (testType.Any((s) => s == "jld:ExpandTest"))
+                    {
+                        run = () => Infrastructure.Text.JsonLdProcessor.Expand(newCase.input, options);
+                    }
+                    else if (testType.Any((s) => s == "jld:FlattenTest"))
+                    {
+                        run = () => Infrastructure.Text.JsonLdProcessor.Flatten(newCase.input, newCase.context, options);
+                    }
+                    else if (testType.Any((s) => s == "jld:FrameTest"))
+                    {
+                        run = () => Infrastructure.Text.JsonLdProcessor.Frame(newCase.input, newCase.frame, options);
+                    }
+                    else if (testType.Any((s) => s == "jld:NormalizeTest"))
+                    {
+                        run = () => RDFDatasetUtils.ToNQuads((RDFDataset)Infrastructure.Text.JsonLdProcessor.Normalize(newCase.input, options)).Replace("\n", "\r\n");
+                    }
+                    else if (testType.Any((s) => s == "jld:ToRDFTest"))
+                    {
+                        options.format = "application/nquads";
+                        run = () => Infrastructure.Text.JsonLdProcessor.ToRDF(newCase.input, options).Replace("\n", "\r\n");
+
+                    }
+                    else if (testType.Any((s) => s == "jld:FromRDFTest"))
+                    {
+                        options.format = "application/nquads";
+                        run = () => Infrastructure.Text.JsonLdProcessor.FromRDF(newCase.input, options);
+                    }
+                    else
+                    {
+                        run = () => { throw new Exception("Couldn't find a test type, apparently."); };
+                    }
+
+                    if (testCases.AreRemoteDocumentTests)
+                    {
+                        Func<string> innerRun = run;
+                        run = () =>
+                        {
+                            var remoteDoc = options.documentLoader.LoadDocument("https://json-ld.org/test-suite/tests/" + testCase.Input);
+                            newCase.input = remoteDoc.Document;
+                            options.SetBase(remoteDoc.DocumentUrl);
+                            options.SetExpandContext(remoteDoc.Context);
+                            return innerRun();
+                        };
+                    }
+
+                    newCase.run = run;
+
+                    yield return new object[] { manifest + testCase.Id, newCase };
+                }
+            }
+        }
+
+        System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
+        {
+            throw new Exception("auggh");
+        }
+    }
+}

JsonLD.Infrastructure.Text.Tests/DictionaryExtensions.cs

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+using System;
+using System.Collections;
+using System.Collections.Generic;
+
+namespace JsonLD.Infrastructure.Text.Tests
+{
+    internal static class DictionaryExtensions
+    {
+        public static T Required<T>(this Dictionary<string, object> dictionary, string propertyName) => Extract<T>(dictionary, propertyName, true);
+
+        public static T Optional<T>(this Dictionary<string, object> dictionary, string propertyName) => Extract<T>(dictionary, propertyName, false);
+
+        private static T Extract<T>(Dictionary<string, object> dictionary, string propertyName, bool isRequired)
+        {
+            if (!dictionary.ContainsKey(propertyName))
+            {
+                if (isRequired)
+                {
+                    var message = $"Expected top-level property {propertyName} but only found {string.Join(", ", dictionary.Keys)}";
+                    throw new Exception(message);
+                } 
+                else
+                {
+                    return default;
+                }
+            }
+            var value = dictionary[propertyName];
+            if (typeof(T).IsGenericType) {
+                var genericType = typeof(T).GetGenericTypeDefinition();
+                if (genericType == typeof(List<>))
+                {
+                    var list = Activator.CreateInstance<T>();
+                    var addMethod = typeof(T).GetMethod("Add");
+                    foreach(var item in (IEnumerable)value)
+                    {
+                        addMethod.Invoke(list, new[] { item });
+                    }
+                    return list;
+                }
+            }            
+            return (T)value;
+        }
+    }
+}

JsonLD.Infrastructure.Text.Tests/JsonFetcher.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+
+namespace JsonLD.Infrastructure.Text.Tests
+{
+    internal static class JsonFetcher
+    {
+        public static JsonTestCases GetTestCases(string manifest, string rootDirectory)
+        {
+            var json = GetJsonAsString(rootDirectory, manifest);
+            var parsed = TinyJson.JSONParser.FromJson<Dictionary<string, object>>(json);
+            var sequence = parsed.Required<List<object>>("sequence");
+            var name = parsed.Required<string>("name");
+            return new JsonTestCases(name, sequence, rootDirectory);
+        }
+
+        internal static string GetJsonAsString(string folderPath, string fileName)
+        {
+            if (string.IsNullOrWhiteSpace(fileName)) throw new ArgumentOutOfRangeException(nameof(fileName), "Empty or whitespace");
+            var filePath = Path.Combine(folderPath, fileName);
+            using (var manifestStream = File.OpenRead(filePath))
+            using (var reader = new StreamReader(manifestStream))
+            {
+                return reader.ReadToEnd();
+            }
+        }
+
+        internal static string GetRemoteJsonAsString(string input) => throw new NotImplementedException("Not even sure if this should be implemented. Need to double check whether remote test cases are supposed to use the core library to resolve the remote document or whether it's valid for the test case itself to retrieve it");
+
+    }
+}

JsonLD.Infrastructure.Text.Tests/JsonLD.Infrastructure.Text.Tests.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp2.1</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.7.1" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\JsonLD.Infrastructure.Text\JsonLD.Infrastructure.Text.csproj" />
+    <ProjectReference Include="..\test\json-ld.net.tests\json-ld.net.tests.csproj" />
+  </ItemGroup>
+
+</Project>

JsonLD.Infrastructure.Text.Tests/JsonTestCase.cs

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+using System.Collections.Generic;
+
+namespace JsonLD.Infrastructure.Text.Tests
+{
+    internal class JsonTestCase
+    {
+        private readonly string _dataPath;
+        private readonly bool _isRemoteDocumentTest;
+
+        internal JsonTestCase(Dictionary<string, object> dictionary, string dataPath, bool isRemoteDocumentTest)
+        {
+            Id = dictionary.Required<string>("@id");
+            Type = dictionary.Optional<List<string>>("@type");
+            Input = dictionary.Required<string>("input");
+            Expect = dictionary.Required<string>("expect");
+            Context = dictionary.Optional<string>("context");
+            Frame = dictionary.Optional<string>("frame");
+            var options = dictionary.Optional<Dictionary<string, object>>("option");
+            if (options != null) Options = new JsonTestCaseOptions(options);
+            _dataPath = dataPath;
+            _isRemoteDocumentTest = isRemoteDocumentTest;
+        }
+
+        internal string Context { get; }
+
+        internal string Expect { get; }
+
+        internal string Frame { get; }
+
+        internal string Id { get; }
+
+        internal string Input { get; }
+
+        internal JsonTestCaseOptions Options { get; }
+
+        internal IEnumerable<string> Type { get; }
+
+        internal string GetContextJson() => Context == null ? null : JsonFetcher.GetJsonAsString(_dataPath, Context);
+
+        internal string GetExpandContextJson() => Options?.ExpandContext == null ? null : JsonFetcher.GetJsonAsString(_dataPath, Options.ExpandContext);
+
+        internal string GetExpectJson() => Expect == null ? null : JsonFetcher.GetJsonAsString(_dataPath, Expect);
+
+        internal string GetFrameJson() => Frame == null ? null : JsonFetcher.GetJsonAsString(_dataPath, Frame);
+
+        internal string GetInputJson() => _isRemoteDocumentTest
+            ? JsonFetcher.GetRemoteJsonAsString(Input)
+            : JsonFetcher.GetJsonAsString(_dataPath, Input);
+    }
+}