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Rich and fluent assertions for testing Vavr tools
/*
* 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.
*
* Copyright 2017-2021 the original author or authors.
*/
package org.assertj.vavr.api;
import io.vavr.control.Either;
import org.assertj.core.error.BasicErrorMessageFactory;
/**
* Build error message when an {@link Either} should contain a specific value.
*
* @author Alex Dukhno
* @author Michał Chmielarz
*/
class EitherShouldContain extends BasicErrorMessageFactory {
private static final String EXPECTING_TO_CONTAIN_ON_LEFT = "%nExpecting:%n <%s>%nto contain:%n <%s> on the [LEFT]%nbut did not.";
private static final String EXPECTING_TO_CONTAIN_ON_RIGHT = "%nExpecting:%n <%s>%nto contain:%n <%s> on the [RIGHT]%nbut did not.";
private static final String EXPECTING_TO_CONTAIN_SAME = "%nExpecting:%n <%s>%nto contain the instance (i.e. compared with ==):%n <%s>%nbut did not.";
private static final String EXPECTING_TO_CONTAIN_BUT_IS_LEFT = "%nExpecting:%n <%s>%nto contain on the [LEFT]:%n <%s>%nbut was left sided.";
private static final String EXPECTING_TO_CONTAIN_BUT_IS_RIGHT = "%nExpecting:%n <%s>%nto contain on the [RIGHT]:%n <%s>%nbut was right sided.";
private static final String EXPECTING_TO_CONTAIN_ON_THE_LEFT = "%nExpecting:%n <%s>%nto contain:%n <%s> on the [LEFT]%nbut did not.";
private static final String EXPECTING_TO_CONTAIN_ON_THE_RIGHT = "%nExpecting:%n <%s>%nto contain:%n <%s> on the [RIGHT]%nbut did not.";
private static final String EXPECTING_ON_THE_LEFT = "%nExpecting:%n <%s>%nto contain on the [LEFT]:%n <%s>%nbut had <%s> on the [RIGHT].";
private static final String EXPECTING_ON_THE_RIGHT = "%nExpecting:%n <%s>%nto contain on the [RIGHT]:%n <%s>%nbut had <%s> on the [LEFT].";
private EitherShouldContain(String message, Object actual, Object expected) {
super(message, actual, expected);
}
private EitherShouldContain(String format, Object... arguments) {
super(format, arguments);
}
/**
* Indicates that the provided {@link io.vavr.control.Either} does not contain the provided argument.
*
* @param either the {@link io.vavr.control.Either} which contains a value.
* @param expected the value we expect to be in the provided {@link io.vavr.control.Either}.
* @param the type of the value contained in the {@link io.vavr.control.Either} on the left.
* @param the type of the value contained in the {@link io.vavr.control.Either} on the right.
* @return an error message factory
*/
static EitherShouldContain shouldContain(Either either,
Object expected) {
return either.isLeft() ?
new EitherShouldContain(EXPECTING_TO_CONTAIN_ON_THE_LEFT, either, expected) :
new EitherShouldContain(EXPECTING_TO_CONTAIN_ON_THE_RIGHT, either, expected);
}
/**
* Indicates that the provided {@link io.vavr.control.Either} does not contain the provided argument on expected side.
*
* @param either the {@link io.vavr.control.Either} which contains a value.
* @param expected the value we expect to be in the provided {@link io.vavr.control.Either}.
* @param the type of the value contained in the {@link io.vavr.control.Either} on the left.
* @param the type of the value contained in the {@link io.vavr.control.Either} on the right.
* @return an error message factory
*/
static EitherShouldContain shouldContainOnOtherSide(Either either,
Object expected) {
return either.isRight()
? new EitherShouldContain(EXPECTING_ON_THE_LEFT, either, expected, either.get())
: new EitherShouldContain(EXPECTING_ON_THE_RIGHT, either, expected, either.getLeft());
}
/**
* Indicates that the provided {@link Either} does not contain the provided argument as right value.
*
* @param either the {@link Either} which contains a value.
* @param expectedValue the value we expect to be in the provided {@link Either} on the right side.
* @param the type of the value contained in the {@link Either} on the left side.
* @param the type of the value contained in the {@link Either} on the right side.
* @return an error message factory
*/
static EitherShouldContain shouldContainOnRight(Either either, RIGHT expectedValue) {
return either.isRight() ?
new EitherShouldContain(EXPECTING_TO_CONTAIN_ON_RIGHT, either, expectedValue) :
shouldContainButIsLeft(either, expectedValue);
}
/**
* Indicates that the provided {@link Either} does not contain the provided argument (judging by reference
* equality).
*
* @param either the {@link Either} which contains a value.
* @param expectedValue the value we expect to be in the provided {@link Either} on the right side.
* @param the type of the value contained in the {@link Either} on the left side.
* @param the type of the value contained in the {@link Either} on the right side.
* @return an error message factory
*/
static EitherShouldContain shouldContainSameOnRight(Either either, RIGHT expectedValue) {
return either.isRight() ?
new EitherShouldContain(EXPECTING_TO_CONTAIN_SAME, either, expectedValue) :
shouldContainButIsLeft(either, expectedValue);
}
/**
* Indicates that the provided {@link Either} does not contain the provided argument as right value.
*
* @param either the {@link Either} which contains a value.
* @param expectedValue the value we expect to be in the provided {@link Either} on the left side.
* @param the type of the value contained in the {@link Either} on the left side.
* @param the type of the value contained in the {@link Either} on the right side.
* @return an error message factory
*/
static EitherShouldContain shouldContainOnLeft(Either either,
LEFT expectedValue) {
return either.isLeft() ?
new EitherShouldContain(EXPECTING_TO_CONTAIN_ON_LEFT, either, expectedValue) :
shouldContainButIsRight(either, expectedValue);
}
/**
* Indicates that the provided {@link Either} does not contain the provided argument (judging by reference
* equality).
*
* @param either the {@link Either} which contains a value.
* @param expectedValue the value we expect to be in the provided {@link Either} on the left side.
* @param the type of the value contained in the {@link Either} on the left side.
* @param the type of the value contained in the {@link Either} on the right side.
* @return an error message factory
*/
static EitherShouldContain shouldContainSameOnLeft(Either either,
LEFT expectedValue) {
return either.isLeft() ?
new EitherShouldContain(EXPECTING_TO_CONTAIN_SAME, either, expectedValue) :
shouldContainButIsRight(either, expectedValue);
}
/**
* Indicates that an {@link Either} is left so it doesn't contain the expected right value.
*
* @param expectedRightValue the right value we expect to be in an {@link Either}.
* @return an error message factory.
*/
static EitherShouldContain shouldContainButIsLeft(Either either, Object expectedRightValue) {
return new EitherShouldContain(EXPECTING_TO_CONTAIN_BUT_IS_LEFT, either, expectedRightValue);
}
/**
* Indicates that an {@link Either} is right so it doesn't contain the expected left value.
*
* @param expectedRightValue the left value we expect to be in an {@link Either}.
* @return an error message factory.
*/
static EitherShouldContain shouldContainButIsRight(Either either, Object expectedRightValue) {
return new EitherShouldContain(EXPECTING_TO_CONTAIN_BUT_IS_RIGHT, either, expectedRightValue);
}
}