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ConditionTests.cs
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ConditionTests.cs
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#region License
// Copyright (c) .NET Foundation and contributors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// The latest version of this file can be found at https://github.com/FluentValidation/FluentValidation
#endregion
#pragma warning disable 1998
namespace FluentValidation.Tests {
using System.Collections.Generic;
using System.Threading.Tasks;
using Xunit;
public class ConditionTests {
[Fact]
public void Validation_should_succeed_when_condition_does_not_match() {
var validator = new TestConditionValidator();
var result = validator.Validate(new Person {Id = 1});
Assert.True(result.IsValid);
}
[Fact]
public async Task Validation_should_succeed_when_async_condition_does_not_match() {
var validator = new TestConditionAsyncValidator();
var result = await validator.ValidateAsync(new Person {Id = 1});
result.IsValid.ShouldBeTrue();
}
[Fact]
public void Validation_should_fail_when_condition_matches() {
var validator = new TestConditionValidator();
var result = validator.Validate(new Person());
result.IsValid.ShouldBeFalse();
}
[Fact]
public async Task Validation_should_fail_when_async_condition_matches() {
var validator = new TestConditionAsyncValidator();
var result = await validator.ValidateAsync(new Person());
result.IsValid.ShouldBeFalse();
}
[Fact]
public void Validation_should_succeed_when_condition_matches() {
var validator = new InverseConditionValidator();
var result = validator.Validate(new Person());
result.IsValid.ShouldBeTrue();
}
[Fact]
public async Task Validation_should_succeed_when_async_condition_matches() {
var validator = new InverseConditionAsyncValidator();
var result = await validator.ValidateAsync(new Person());
result.IsValid.ShouldBeTrue();
}
[Fact]
public void Validation_should_fail_when_condition_does_not_match() {
var validator = new InverseConditionValidator();
var result = validator.Validate(new Person {Id = 1});
result.IsValid.ShouldBeFalse();
}
[Fact]
public async Task Validation_should_fail_when_async_condition_does_not_match() {
var validator = new InverseConditionAsyncValidator();
var result = await validator.ValidateAsync(new Person {Id = 1});
result.IsValid.ShouldBeFalse();
}
[Fact]
public void Condition_is_applied_to_all_validators_in_the_chain() {
var validator = new TestValidator {
v => v.RuleFor(x => x.Surname).NotNull().NotEqual("foo").When(x => x.Id > 0)
};
var result = validator.Validate(new Person());
result.Errors.Count.ShouldEqual(0);
}
[Fact]
public async Task Async_condition_is_applied_to_all_validators_in_the_chain() {
var validator = new TestValidator {
v => v.RuleFor(x => x.Surname).NotNull().NotEqual("foo").WhenAsync(async (x,c) => x.Id > 0)
};
var result = await validator.ValidateAsync(new Person());
result.Errors.Count.ShouldEqual(0);
}
[Fact]
public void Async_condition_is_applied_to_all_validators_in_the_chain_when_executed_synchronously() {
var validator = new TestValidator {
v => v.RuleFor(x => x.Surname).NotNull().NotEqual("foo").WhenAsync(async (x,c) => x.Id > 0)
};
Assert.Throws<AsyncValidatorInvokedSynchronouslyException>(() =>
validator.Validate(new Person()));
}
[Fact]
public async Task Sync_condition_is_applied_to_async_validators() {
var validator = new TestValidator {
v => v.RuleFor(x => x.Surname)
.MustAsync(async (val, token) => val != null)
.MustAsync(async (val, token) => val != "foo")
.When(x => x.Id > 0)
};
var result = await validator.ValidateAsync(new Person());
result.Errors.Count.ShouldEqual(0);
}
[Fact]
public void Condition_is_applied_to_single_validator_in_the_chain_when_ApplyConditionTo_set_to_CurrentValidator() {
var validator = new TestValidator {
v => v.RuleFor(x => x.Surname).NotNull().NotEqual("foo").When(x => x.Id > 0, ApplyConditionTo.CurrentValidator)
};
var result = validator.Validate(new Person());
result.Errors.Count.ShouldEqual(1);
}
[Fact]
public async Task Async_condition_is_applied_to_single_validator_in_the_chain_when_ApplyConditionTo_set_to_CurrentValidator() {
var validator = new TestValidator {
v => v.RuleFor(x => x.Surname).NotNull().NotEqual("foo").WhenAsync(async (x,c) => x.Id > 0, ApplyConditionTo.CurrentValidator)
};
var result = await validator.ValidateAsync(new Person());
result.Errors.Count.ShouldEqual(1);
}
[Fact]
public void Async_condition_throws_when_executed_synchronosuly_with_synchronous_role() {
var validator = new TestValidator();
validator.RuleFor(x => x.Surname).NotNull()
.WhenAsync((x, token) => Task.FromResult(false));
Assert.Throws<AsyncValidatorInvokedSynchronouslyException>(() =>
validator.Validate(new Person()));
}
[Fact]
public void Async_condition_throws_when_executed_synchronosuly_with_asynchronous_rule() {
var validator = new TestValidator();
validator.RuleFor(x => x.Surname)
.MustAsync((surname, c) => Task.FromResult(surname != null))
.WhenAsync((x, token) => Task.FromResult(false));
Assert.Throws<AsyncValidatorInvokedSynchronouslyException>(() => validator.Validate(new Person()));
}
[Fact]
public void Async_condition_throws_when_executed_synchronosuly_with_synchronous_collection_role() {
var validator = new TestValidator();
validator.RuleForEach(x => x.NickNames).NotNull()
.WhenAsync((x, token) => Task.FromResult(false));
Assert.Throws<AsyncValidatorInvokedSynchronouslyException>(() =>
validator.Validate(new Person {NickNames = new string[0]}));
}
[Fact]
public void Async_condition_throws_when_invoked_synchronosuly_with_asynchronous_collection_rule() {
var validator = new TestValidator();
validator.RuleForEach(x => x.NickNames)
.MustAsync((n, c) => Task.FromResult(n != null))
.WhenAsync((x, token) => Task.FromResult(false));
Assert.Throws<AsyncValidatorInvokedSynchronouslyException>(() => validator.Validate(new Person {NickNames = new string[0]}));
}
[Fact]
public void Can_access_property_value_in_custom_condition() {
var validator = new TestValidator();
validator.RuleFor(x => x.Surname).Must(v => false).Configure(cfg => {
cfg.ApplyCondition(context => cfg.GetPropertyValue(context.InstanceToValidate) != null);
});
var result = validator.Validate(new Person());
result.IsValid.ShouldBeTrue();
result = validator.Validate(new Person {Surname = "foo"});
result.IsValid.ShouldBeFalse();
}
[Fact]
public void Can_access_property_value_in_custom_condition_foreach() {
var validator = new TestValidator();
validator.RuleForEach(x => x.Orders).Must(v => false).Configure(cfg => {
cfg.ApplyCondition(context => cfg.GetPropertyValue(context.InstanceToValidate) != null);
});
var result = validator.Validate(new Person());
result.IsValid.ShouldBeTrue();
result = validator.Validate(new Person { Orders = new List<Order> { new Order() }});
result.IsValid.ShouldBeFalse();
}
private class TestConditionValidator : AbstractValidator<Person> {
public TestConditionValidator() {
RuleFor(x => x.Forename).NotNull().When(x => x.Id == 0);
}
}
class TestConditionAsyncValidator : AbstractValidator<Person> {
public TestConditionAsyncValidator() {
RuleFor(x => x.Forename).NotNull().WhenAsync(async (x,c) => x.Id == 0);
}
}
private class InverseConditionValidator : AbstractValidator<Person> {
public InverseConditionValidator() {
RuleFor(x => x.Forename).NotNull().Unless(x => x.Id == 0);
}
}
class InverseConditionAsyncValidator : AbstractValidator<Person> {
public InverseConditionAsyncValidator() {
RuleFor(x => x.Forename).NotNull().UnlessAsync(async (x,c) => x.Id == 0);
}
}
}
}