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using System.Collections.Generic;
using Google.ProtocolBuffers.DescriptorProtos;
using Google.ProtocolBuffers.Descriptors;
using NUnit.Framework;
namespace Google.ProtocolBuffers.ProtoGen {
/// <summary>
/// Tests for the dependency resolution in Generator.
/// </summary>
[TestFixture]
public class DependencyResolutionTest {
[Test]
public void TwoDistinctFiles() {
FileDescriptorProto first = new FileDescriptorProto.Builder { Name="First" }.Build();
FileDescriptorProto second = new FileDescriptorProto.Builder { Name="Second" }.Build();
FileDescriptorSet set = new FileDescriptorSet { FileList = { first, second } };
IList<FileDescriptor> converted = Generator.ConvertDescriptors(set);
Assert.AreEqual(2, converted.Count);
Assert.AreEqual("First", converted[0].Name);
Assert.AreEqual(0, converted[0].Dependencies.Count);
Assert.AreEqual("Second", converted[1].Name);
Assert.AreEqual(0, converted[1].Dependencies.Count);
}
[Test]
public void FirstDependsOnSecond() {
FileDescriptorProto first = new FileDescriptorProto.Builder { Name = "First", DependencyList = {"Second"} }.Build();
FileDescriptorProto second = new FileDescriptorProto.Builder { Name = "Second" }.Build();
FileDescriptorSet set = new FileDescriptorSet { FileList = { first, second } };
IList<FileDescriptor> converted = Generator.ConvertDescriptors(set);
Assert.AreEqual(2, converted.Count);
Assert.AreEqual("First", converted[0].Name);
Assert.AreEqual(1, converted[0].Dependencies.Count);
Assert.AreEqual(converted[1], converted[0].Dependencies[0]);
Assert.AreEqual("Second", converted[1].Name);
Assert.AreEqual(0, converted[1].Dependencies.Count);
}
[Test]
public void SecondDependsOnFirst() {
FileDescriptorProto first = new FileDescriptorProto.Builder { Name = "First" }.Build();
FileDescriptorProto second = new FileDescriptorProto.Builder { Name = "Second", DependencyList = {"First"} }.Build();
FileDescriptorSet set = new FileDescriptorSet { FileList = { first, second } };
IList<FileDescriptor> converted = Generator.ConvertDescriptors(set);
Assert.AreEqual(2, converted.Count);
Assert.AreEqual("First", converted[0].Name);
Assert.AreEqual(0, converted[0].Dependencies.Count);
Assert.AreEqual("Second", converted[1].Name);
Assert.AreEqual(1, converted[1].Dependencies.Count);
Assert.AreEqual(converted[0], converted[1].Dependencies[0]);
}
[Test]
public void CircularDependency() {
FileDescriptorProto first = new FileDescriptorProto.Builder { Name = "First", DependencyList = { "Second" } }.Build();
FileDescriptorProto second = new FileDescriptorProto.Builder { Name = "Second", DependencyList = { "First" } }.Build();
FileDescriptorSet set = new FileDescriptorSet { FileList = { first, second } };
try {
Generator.ConvertDescriptors(set);
Assert.Fail("Expected exception");
} catch (DependencyResolutionException) {
// Expected
}
}
[Test]
public void MissingDependency() {
FileDescriptorProto first = new FileDescriptorProto.Builder { Name = "First", DependencyList = { "Second" } }.Build();
FileDescriptorSet set = new FileDescriptorSet { FileList = { first } };
try {
Generator.ConvertDescriptors(set);
Assert.Fail("Expected exception");
} catch (DependencyResolutionException) {
// Expected
}
}
[Test]
public void SelfDependency() {
FileDescriptorProto first = new FileDescriptorProto.Builder { Name = "First", DependencyList = { "First" } }.Build();
FileDescriptorSet set = new FileDescriptorSet { FileList = { first } };
try {
Generator.ConvertDescriptors(set);
Assert.Fail("Expected exception");
} catch (DependencyResolutionException) {
// Expected
}
}
}
}
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