Marco Rossignoli
262 lines
12 KiB
C#
262 lines
12 KiB
C#
using System;
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using System.IO;
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using System.Linq;
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using System.Threading.Tasks;
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using Coverlet.Core.Abstracts;
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using Coverlet.Core.Helpers;
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using Coverlet.Core.Samples.Tests;
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using Coverlet.Tests.RemoteExecutor;
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using Moq;
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using Xunit;
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namespace Coverlet.Core.Tests
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{
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public class CoverageTests
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{
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private readonly InstrumentationHelper _instrumentationHelper = new InstrumentationHelper(new ProcessExitHandler(), new RetryHelper(), new FileSystem());
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private readonly Mock<ILogger> _mockLogger = new Mock<ILogger>();
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[Fact]
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public void TestCoverage()
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{
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string module = GetType().Assembly.Location;
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string pdb = Path.Combine(Path.GetDirectoryName(module), Path.GetFileNameWithoutExtension(module) + ".pdb");
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var directory = Directory.CreateDirectory(Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString()));
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File.Copy(module, Path.Combine(directory.FullName, Path.GetFileName(module)), true);
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File.Copy(pdb, Path.Combine(directory.FullName, Path.GetFileName(pdb)), true);
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// TODO: Find a way to mimick hits
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var coverage = new Coverage(Path.Combine(directory.FullName, Path.GetFileName(module)), Array.Empty<string>(), Array.Empty<string>(), Array.Empty<string>(), Array.Empty<string>(), Array.Empty<string>(), false, false, string.Empty, false, _mockLogger.Object, _instrumentationHelper, new FileSystem());
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coverage.PrepareModules();
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var result = coverage.GetCoverageResult();
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Assert.Empty(result.Modules);
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directory.Delete(true);
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}
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[Fact]
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public void TestCoverageSkipModule__AssemblyMarkedAsExcludeFromCodeCoverage()
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{
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Mock<FileSystem> partialMockFileSystem = new Mock<FileSystem>();
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partialMockFileSystem.CallBase = true;
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partialMockFileSystem.Setup(fs => fs.NewFileStream(It.IsAny<string>(), It.IsAny<FileMode>(), It.IsAny<FileAccess>())).Returns((string path, FileMode mode, FileAccess access) =>
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{
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return new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read);
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});
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var loggerMock = new Mock<ILogger>();
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string excludedbyattributeDll = Directory.GetFiles(Path.Combine(Directory.GetCurrentDirectory(), "TestAssets"), "coverlet.tests.projectsample.excludedbyattribute.dll").First();
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// test skip module includint test assembly feature
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var coverage = new Coverage(excludedbyattributeDll, new string[] { "[coverlet.tests.projectsample.excludedbyattribute*]*" }, Array.Empty<string>(), Array.Empty<string>(), Array.Empty<string>(), Array.Empty<string>(), true, false, string.Empty, false, loggerMock.Object, _instrumentationHelper, partialMockFileSystem.Object);
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CoveragePrepareResult result = coverage.PrepareModules();
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Assert.Empty(result.Results);
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loggerMock.Verify(l => l.LogVerbose(It.IsAny<string>()));
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}
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[Fact]
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public void TestCoverageWithTestAssembly()
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{
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string module = GetType().Assembly.Location;
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string pdb = Path.Combine(Path.GetDirectoryName(module), Path.GetFileNameWithoutExtension(module) + ".pdb");
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var directory = Directory.CreateDirectory(Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString()));
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File.Copy(module, Path.Combine(directory.FullName, Path.GetFileName(module)), true);
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File.Copy(pdb, Path.Combine(directory.FullName, Path.GetFileName(pdb)), true);
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// TODO: Find a way to mimick hits
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var coverage = new Coverage(Path.Combine(directory.FullName, Path.GetFileName(module)), Array.Empty<string>(), Array.Empty<string>(), Array.Empty<string>(), Array.Empty<string>(), Array.Empty<string>(), true, false, string.Empty, false, _mockLogger.Object, _instrumentationHelper, new FileSystem());
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coverage.PrepareModules();
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var result = coverage.GetCoverageResult();
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Assert.NotEmpty(result.Modules);
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directory.Delete(true);
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}
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[Fact]
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public void SelectionStatements_If()
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{
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// We need to pass file name to remote process where it save instrumentation result
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// Similar to msbuild input/output
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string path = Path.GetTempFileName();
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try
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{
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// Lambda will run in a custom process to avoid issue with statics and file locking
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RemoteExecutor.Invoke(async pathSerialize =>
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{
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// Run load and call a delegate passing class as dynamic to simplify method call
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CoveragePrepareResult coveragePrepareResult = await TestInstrumentationHelper.Run<SelectionStatements>(instance =>
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{
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// We call method to trigger coverage hits
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instance.If(true);
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// For now we have only async Run helper
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return Task.CompletedTask;
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}, pathSerialize);
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// we return 0 if we return something different assert fail
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return 0;
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}, path).Dispose();
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// We retrive and load CoveragePrepareResult and run coverage calculation
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// Similar to msbuild coverage result task
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CoverageResult result = TestInstrumentationHelper.GetCoverageResult(path);
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// Generate html report to check
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// TestInstrumentationHelper.GenerateHtmlReport(result);
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// Asserts on doc/lines/branches
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result.Document("Instrumentation.SelectionStatements.cs")
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// (line, hits)
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.AssertLinesCovered((11, 1), (15, 0))
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// (line,ordinal,hits)
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.AssertBranchesCovered((9, 0, 1), (9, 1, 0));
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}
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finally
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{
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// Cleanup tmp file
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File.Delete(path);
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}
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}
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[Fact]
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public void SelectionStatements_Switch()
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{
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string path = Path.GetTempFileName();
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try
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{
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RemoteExecutor.Invoke(async pathSerialize =>
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{
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CoveragePrepareResult coveragePrepareResult = await TestInstrumentationHelper.Run<SelectionStatements>(instance =>
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{
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instance.Switch(1);
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return Task.CompletedTask;
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}, pathSerialize);
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return 0;
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}, path).Dispose();
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CoverageResult result = TestInstrumentationHelper.GetCoverageResult(path);
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result.Document("Instrumentation.SelectionStatements.cs")
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.AssertLinesCovered(BuildConfiguration.Release, (24, 1), (26, 0), (28, 0))
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.AssertBranchesCovered(BuildConfiguration.Release, (24, 1, 1))
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.AssertLinesCovered(BuildConfiguration.Debug, (20, 1), (21, 1), (24, 1), (30, 1))
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.AssertBranchesCovered(BuildConfiguration.Debug, (21, 0, 0), (21, 1, 1), (21, 2, 0), (21, 3, 0));
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}
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finally
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{
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File.Delete(path);
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}
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}
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[Fact]
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public void AsyncAwait()
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{
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string path = Path.GetTempFileName();
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try
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{
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RemoteExecutor.Invoke(async pathSerialize =>
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{
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CoveragePrepareResult coveragePrepareResult = await TestInstrumentationHelper.Run<AsyncAwait>(instance =>
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{
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instance.SyncExecution();
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int res = ((Task<int>)instance.AsyncExecution(true)).ConfigureAwait(false).GetAwaiter().GetResult();
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res = ((Task<int>)instance.AsyncExecution(1)).ConfigureAwait(false).GetAwaiter().GetResult();
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res = ((Task<int>)instance.AsyncExecution(2)).ConfigureAwait(false).GetAwaiter().GetResult();
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res = ((Task<int>)instance.AsyncExecution(3)).ConfigureAwait(false).GetAwaiter().GetResult();
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res = ((Task<int>)instance.ContinuationCalled()).ConfigureAwait(false).GetAwaiter().GetResult();
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return Task.CompletedTask;
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}, pathSerialize);
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return 0;
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}, path).Dispose();
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CoverageResult result = TestInstrumentationHelper.GetCoverageResult(path);
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result.Document("Instrumentation.AsyncAwait.cs")
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.AssertLinesCovered(BuildConfiguration.Debug,
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// AsyncExecution(bool)
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(10, 1), (11, 1), (12, 1), (14, 1), (16, 1), (17, 0), (18, 0), (19, 0), (21, 1), (22, 1),
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// Async
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(25, 9), (26, 9), (27, 9), (28, 9),
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// SyncExecution
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(31, 1), (32, 1), (33, 1),
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// Sync
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(36, 1), (37, 1), (38, 1),
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// AsyncExecution(int)
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(41, 3), (42, 3), (43, 3), (46, 1), (47, 1), (48, 1), (51, 1),
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(52, 1), (53, 1), (56, 1), (57, 1), (58, 1), (59, 1),
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(62, 0), (63, 0), (64, 0), (65, 0), (68, 0), (70, 3), (71, 3),
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// ContinuationNotCalled
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(74, 0), (75, 0), (76, 0), (77, 0), (78, 0),
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// ContinuationCalled -> line 83 should be 1 hit some issue with Continuation state machine
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(81, 1), (82, 1), (83, 2), (84, 1), (85, 1)
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)
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.AssertBranchesCovered(BuildConfiguration.Debug, (16, 0, 0), (16, 1, 1), (43, 0, 3), (43, 1, 1), (43, 2, 1), (43, 3, 1), (43, 4, 0))
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// Real branch should be 2, we should try to remove compiler generated branch in method ContinuationNotCalled/ContinuationCalled
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// for Continuation state machine
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.ExpectedTotalNumberOfBranches(BuildConfiguration.Debug, 4);
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}
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finally
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{
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File.Delete(path);
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}
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}
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[Fact]
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public void Lambda_Issue343()
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{
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string path = Path.GetTempFileName();
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try
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{
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RemoteExecutor.Invoke(async pathSerialize =>
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{
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CoveragePrepareResult coveragePrepareResult = await TestInstrumentationHelper.Run<Lambda_Issue343>(instance =>
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{
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instance.InvokeAnonymous_Test();
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((Task<bool>)instance.InvokeAnonymousAsync_Test()).ConfigureAwait(false).GetAwaiter().GetResult();
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return Task.CompletedTask;
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}, pathSerialize);
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return 0;
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}, path).Dispose();
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CoverageResult result = TestInstrumentationHelper.GetCoverageResult(path);
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result.Document("Instrumentation.Lambda.cs")
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.AssertLinesCoveredAllBut(BuildConfiguration.Debug, 23, 51)
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.AssertBranchesCovered(BuildConfiguration.Debug,
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// Expected branches
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(22, 0, 0),
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(22, 1, 1),
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(50, 2, 0),
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(50, 3, 1),
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// Unexpected branches
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(20, 0, 1),
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(20, 1, 1),
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(49, 0, 1),
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(49, 1, 0),
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(54, 4, 0),
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(54, 5, 1),
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(39, 0, 1),
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(39, 1, 0),
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(48, 0, 1),
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(48, 1, 1)
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);
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}
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finally
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{
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File.Delete(path);
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}
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}
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}
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} |