Free statement for condition OR

Question

I am trying to set up a free statement for the following condition. But could not find a method with an expression or ObjectAssertion using Or ().

I need to check the status of my service for enum Pending or Active

 services.Should().HaveCount(totalServices).And.BeOfType<Service>().Which.ServiceStatusKey.Should().Be(Status.Pending); 

I need something like

 .Be(Status.Pending).Or().Be(Status.Active) 

Can anyone help me on this.

FluentAsserstions Version: 4.1.1 (the last of Nuget) Joining 4.1 FluentAssertions.Primitive namespaces.

  // Decompiled with JetBrains decompiler // Type: FluentAssertions.Primitives.ObjectAssertions // Assembly: FluentAssertions.Core, Version=4.1.1.0, Culture=neutral, PublicKeyToken=33f2691a05b67b6a // MVID: 090116C5-E9A5-4878-B62E-DE0EBFEBBE14 // Assembly location: C:\RA\P4V\BOSS\trunk\M5Portal\packages\FluentAssertions.4.1.1\lib\net45\FluentAssertions.Core.dll using FluentAssertions; using FluentAssertions.Common; using FluentAssertions.Execution; using System; using System.Diagnostics; namespace FluentAssertions.Primitives { /// <summary> /// Contains a number of methods to assert that an <see cref="T:System.Object"/> is in the expected state. /// /// </summary> [DebuggerNonUserCode] public class ObjectAssertions : ReferenceTypeAssertions<object, ObjectAssertions> { /// <summary> /// Returns the type of the subject the assertion applies on. /// /// </summary> protected override string Context { get { return "object"; } } public ObjectAssertions(object value) { this.Subject = value; } /// <summary> /// Asserts that an object equals another object using its <see cref="M:System.Object.Equals(System.Object)"/> implementation. /// /// </summary> /// <param name="expected">The expected value</param><param name="because">A formatted phrase as is supported by <see cref="M:System.String.Format(System.String,System.Object[])"/> explaining why the assertion /// is needed. If the phrase does not start with the word <i>because</i>, it is prepended automatically. /// </param><param name="reasonArgs">Zero or more objects to format using the placeholders in <see cref="!:because"/>. /// </param> public AndConstraint<ObjectAssertions> Be(object expected, string because = "", params object[] reasonArgs) { Execute.Assertion.BecauseOf(because, reasonArgs).ForCondition(ObjectExtensions.IsSameOrEqualTo(this.Subject, expected)).FailWith("Expected {context:object} to be {0}{reason}, but found {1}.", expected, this.Subject); return new AndConstraint<ObjectAssertions>(this); } /// <summary> /// Asserts that an object does not equal another object using its <see cref="M:System.Object.Equals(System.Object)"/> method. /// /// </summary> /// <param name="unexpected">The unexpected value</param><param name="because">A formatted phrase explaining why the assertion should be satisfied. If the phrase does not /// start with the word <i>because</i>, it is prepended to the message. /// </param><param name="reasonArgs">Zero or more values to use for filling in any <see cref="M:System.String.Format(System.String,System.Object[])"/> compatible placeholders. /// </param> public AndConstraint<ObjectAssertions> NotBe(object unexpected, string because = "", params object[] reasonArgs) { Execute.Assertion.ForCondition(!ObjectExtensions.IsSameOrEqualTo(this.Subject, unexpected)).BecauseOf(because, reasonArgs).FailWith("Did not expect {context:object} to be equal to {0}{reason}.", unexpected); return new AndConstraint<ObjectAssertions>(this); } /// <summary> /// Asserts that an object is an enum and has a specified flag /// /// </summary> /// <param name="expectedFlag">The expected flag.</param><param name="because">A formatted phrase explaining why the assertion should be satisfied. If the phrase does not /// start with the word <i>because</i>, it is prepended to the message. /// </param><param name="reasonArgs">Zero or more values to use for filling in any <see cref="M:System.String.Format(System.String,System.Object[])"/> compatible placeholders. /// </param> public AndConstraint<ObjectAssertions> HaveFlag(Enum expectedFlag, string because = "", params object[] reasonArgs) { Execute.Assertion.BecauseOf(because, reasonArgs).ForCondition(this.Subject != null).FailWith("Expected type to be {0}{reason}, but found <null>.", (object) expectedFlag.GetType()).Then.ForCondition(this.Subject.GetType() == expectedFlag.GetType()).FailWith("Expected the enum to be of type {0} type but found {1}{reason}.", (object) expectedFlag.GetType(), (object) this.Subject.GetType()).Then.Given<Enum>((Func<Enum>) (() => this.Subject as Enum)).ForCondition((Func<Enum, bool>) (@enum => @enum.HasFlag(expectedFlag))).FailWith("The enum was expected to have flag {0} but found {1}{reason}.", (Func<Enum, object>) (_ => (object) expectedFlag), (Func<Enum, object>) (@enum => (object) @enum)); return new AndConstraint<ObjectAssertions>(this); } /// <summary> /// Asserts that an object is an enum and does not have a specified flag /// /// </summary> /// <param name="unexpectedFlag">The unexpected flag.</param><param name="because">A formatted phrase explaining why the assertion should be satisfied. If the phrase does not /// start with the word <i>because</i>, it is prepended to the message. /// </param><param name="reasonArgs">Zero or more values to use for filling in any <see cref="M:System.String.Format(System.String,System.Object[])"/> compatible placeholders. /// </param> public AndConstraint<ObjectAssertions> NotHaveFlag(Enum unexpectedFlag, string because = "", params object[] reasonArgs) { Execute.Assertion.BecauseOf(because, reasonArgs).ForCondition(this.Subject != null).FailWith("Expected type to be {0}{reason}, but found <null>.", (object) unexpectedFlag.GetType()).Then.ForCondition(this.Subject.GetType() == unexpectedFlag.GetType()).FailWith("Expected the enum to be of type {0} type but found {1}{reason}.", (object) unexpectedFlag.GetType(), (object) this.Subject.GetType()).Then.Given<Enum>((Func<Enum>) (() => this.Subject as Enum)).ForCondition((Func<Enum, bool>) (@enum => !@enum.HasFlag (unexpectedFlag))).FailWith("Did not expect the enum to have flag {0}{reason}.", new object[1] { (object) unexpectedFlag }); return new AndConstraint<ObjectAssertions>(this); } } } 

Answer 1

You can use Match for this occasion.

 ServiceStatusKey.Should().Match<Status>(p=>p==Status.Pending || p == Status.Active); 

FluentAssertions does not support the Or () operator. Use Match () for general statements.

Answer 2

OR much more complicated than AND , like what does

 A().Or.B().And.C().Or.D() 

mean?

The real problem is OR support as well as AND support . Therefore, I would like to write methods such as

 services.ShouldDoAtLeastOneof(params Predicate predicates) 

as something more flexible is questionable for statements in unit tests.

(Since I never used Fluent Assertions, I don’t know if it has a built-in method that does this. I think BeOneOf solves the very limited “OR” case asked in the question well, as shown in Matthew Watson's answer.)

Answer 3

Try as follows:

 (services.Status == Status.Pending || services.Status == Status.Active).Should().BeTrue("Message when it is false.");