OpenAsserts 2.0.2
dotnet add package OpenAsserts --version 2.0.2
NuGet\Install-Package OpenAsserts -Version 2.0.2
<PackageReference Include="OpenAsserts" Version="2.0.2" />
paket add OpenAsserts --version 2.0.2
#r "nuget: OpenAsserts, 2.0.2"
// Install OpenAsserts as a Cake Addin
#addin nuget:?package=OpenAsserts&version=2.0.2
// Install OpenAsserts as a Cake Tool
#tool nuget:?package=OpenAsserts&version=2.0.2
OpenAsserts
The Assert
classes and methods we get out of the box cover a lot of what needs to be said about systems under test, but they're by no means comprehensive. OpenAsserts aims to fill some of the gaps. In these early implementations, the focus is on asserting against default
values, but I intend to expand the project as I come up with more requirements or as I receive suggestions.
Examples
DefaultAssert
Is/Not
As is typical with Assert
vocabulary, I use "Is" and "IsNot" to assert that a single argument is or is not equal to the default for its type.
// Consider a Foo
public class Foo
{
public string Name { get; private set; }
public string Description { get; private set; }
public DateTime LastModified {get; private set; }
public void UpdateDescription(string description) {
Description = description;
LastModified = DateTime.Now;
}
}
// Constructing one of these fills the properties with default values.
// Calling `UpdateDescription` mutates the timestamp.
// It can be tested like so:
[TestMethod]
public void TestDefaultMutations() {
Foo foo = new Foo();
DefaultAssert.IsDefault(foo.Name);
DefaultAssert.IsDefault(foo.Description);
DefaultAssert.IsDefault(foo.LastModified);
foo.UpdateDescription("new description");
DefaultAssert.IsDefault(foo.Name); // verify this wasn't mutated
DefaultAssert.IsNotDefault(foo.Description); // this was *obviously* changed
DefaultAssert.IsNotDefault(foo.LastModified); // this was a less obvious change.
}
DefaultAssert
Are/Not
Are
and AreNot
methods of this kind aren't typical, in my experience. I wanted a quick way to assert against a bunch of fields or properties of the same type.
// Keep in mind the Foo from above.
[TestMethod]
public void DefaultCtor_MakesNameDescriptionDefault() {
Foo foo = new Foo();
DefaultAssert.AreDefault(new List<string> { foo.Name, foo.Description });
}
Product | Versions Compatible and additional computed target framework versions. |
---|---|
.NET Framework | net45 is compatible. net451 was computed. net452 was computed. net46 is compatible. net461 was computed. net462 was computed. net463 was computed. net47 was computed. net471 was computed. net472 was computed. net48 was computed. net481 was computed. |
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Adding multiple target frameworks.