using System;
using NUnit.Framework;
using Deltares.Dam.Data;
using System.IO;

namespace Deltares.Dam.Tests
{
    [TestFixture]
    public class StabilityServiceAgentTest
    {
        private const string NormalTestFile = @"..\..\..\data\dam\mstabfiles\zuivering Gendt.sti";
        private const string BadTestFile = @"..\..\..\data\dam\mstabfiles\BadInputFile.sti";

        private StabilityServiceAgent agent;

        [TestFixtureSetUp]
        public void FixtureSetup()
        {
            agent = new StabilityServiceAgent();
        }

        [Test]
        public void CanPerformCalculation()
        {
            var result = agent.ExtractStabilityResults(NormalTestFile);
            Assert.GreaterOrEqual(1.276, result.zone1.safetyFactor);
        }

        [Test]
        [ExpectedException(typeof(FileNotFoundException))]
        public void ThrowsFileExceptionUsingProjectFileThatNotExists()
        {
            agent.ExtractStabilityResults("teG1_ute7st.sti");
        }

        [Test]
        [ExpectedException(typeof(ArgumentException))]
        public void ThrowsExceptionWhenProjectFileIsEmpty()
        {
            agent.ExtractStabilityResults("");
        }

        [Test]
        [ExpectedException(typeof(ArgumentException))]
        public void ThrowsExceptionWhenProjectFileNameContainsOnlySpaces()
        {
            agent.ExtractStabilityResults(" ");
        }

        [Test]
        [ExpectedException(typeof(ArgumentException))]
        public void ThrowsExceptionWhenProjectFileNameIsNull()
        {
            agent.ExtractStabilityResults(null);
        }

        [Test]
        [ExpectedException(typeof(StabilityServiceAgentException))]
        public void ThrowsExceptionWhenOutputFileIsNotFound()
        {
            agent.ExtractStabilityResults(BadTestFile);
        }
    }
}