public void CreateInstancesIgnoresFilesNotInMpsFormat()
{
// Call method.
var instances = GurobiUtils.CreateInstances(this._instanceFolder, 1, 42);
// Check that no non-mps file has been translated into an instance.
var instancePaths = instances.Select(instance => instance.Path);
instancePaths.Any(path => GurobiUtilsTests.NonMpsFileNames.Any(file => path.Contains(file)))
.ShouldBeFalse("Not all non-mps files have been ignored.");
}
public void CreateInstancesCorrectlyExtractsPathsToMpsFiles()
{
// Call method.
var instances = GurobiUtils.CreateInstances(this._instanceFolder, 1, 42);
// Check that file names of instances match the complete paths of all .mps files.
var expectedPaths = GurobiUtilsTests.MpsFileNames.Select(name => this._instanceFolder + Path.DirectorySeparatorChar + name);
var instancePaths = instances.Select(instance => instance.Path);
expectedPaths.ShouldBe(
instancePaths,
true,
$"{TestUtils.PrintList(instancePaths)} should have been equal to {TestUtils.PrintList(expectedPaths)}.");
}
public void CreateInstancesPrintsMessageIfItCannotOpenFolder()
{
TestUtils.CheckOutput(
action: () =>
{
// Call CreateInstances with a non existant directory path.
try
{
GurobiUtils.CreateInstances("foobarFolder", 1, 42);
}
catch (DirectoryNotFoundException)
{
// This is expected.
}
},
check: consoleOutput =>
{
// Check that information about it is written to console.
StringReader reader = new StringReader(consoleOutput.ToString());
reader.ReadLine().ShouldContain("foobarFolder", "The problematic path did not get printed.");
reader.ReadLine().ShouldBe("Cannot open folder.", "Cause of exception has not been printed.");
});
}
public void CreateInstancesThrowsExceptionIfItCannotOpenFolder()
{
Exception exception =
Assert.Throws <DirectoryNotFoundException>(
() => { GurobiUtils.CreateInstances("foobarFolder", 1, 42); });
}