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package org.apache.juneau.assertions;
import static java.util.Arrays.*;
import static java.util.stream.Collectors.*;
import static org.apache.juneau.common.internal.StringUtils.*;
import static org.apache.juneau.internal.CollectionUtils.*;
import java.io.*;
import java.util.*;
import java.util.function.*;
import org.apache.juneau.common.internal.*;
import org.apache.juneau.cp.*;
import org.apache.juneau.internal.*;
import org.apache.juneau.serializer.*;
/**
* Used for fluent assertion calls against lists.
*
* <h5 class='section'>Test Methods:</h5>
* <p>
* <ul class='javatree'>
* <li class='jc'>{@link FluentListAssertion}
* <ul class='javatreec'>
* <li class='jm'>{@link FluentListAssertion#isHas(Object...) isHas(Object...)}
* <li class='jm'>{@link FluentListAssertion#isEach(Predicate...) isEach(Predicate...)}
* </ul>
* <li class='jc'>{@link FluentCollectionAssertion}
* <ul class='javatreec'>
* <li class='jm'>{@link FluentCollectionAssertion#isEmpty() isEmpty()}
* <li class='jm'>{@link FluentCollectionAssertion#isNotEmpty() isNotEmpty()}
* <li class='jm'>{@link FluentCollectionAssertion#isContains(Object) isContains(Object)}
* <li class='jm'>{@link FluentCollectionAssertion#isNotContains(Object) isNotContains(Object)}
* <li class='jm'>{@link FluentCollectionAssertion#isAny(Predicate) isAny(Predicate)}
* <li class='jm'>{@link FluentCollectionAssertion#isAll(Predicate) isAll(Predicate)}
* <li class='jm'>{@link FluentCollectionAssertion#isSize(int size) isSize(int size)}
* </ul>
* <li class='jc'>{@link FluentObjectAssertion}
* <ul class='javatreec'>
* <li class='jm'>{@link FluentObjectAssertion#isExists() isExists()}
* <li class='jm'>{@link FluentObjectAssertion#is(Object) is(Object)}
* <li class='jm'>{@link FluentObjectAssertion#is(Predicate) is(Predicate)}
* <li class='jm'>{@link FluentObjectAssertion#isNot(Object) isNot(Object)}
* <li class='jm'>{@link FluentObjectAssertion#isAny(Object...) isAny(Object...)}
* <li class='jm'>{@link FluentObjectAssertion#isNotAny(Object...) isNotAny(Object...)}
* <li class='jm'>{@link FluentObjectAssertion#isNull() isNull()}
* <li class='jm'>{@link FluentObjectAssertion#isNotNull() isNotNull()}
* <li class='jm'>{@link FluentObjectAssertion#isString(String) isString(String)}
* <li class='jm'>{@link FluentObjectAssertion#isJson(String) isJson(String)}
* <li class='jm'>{@link FluentObjectAssertion#isSame(Object) isSame(Object)}
* <li class='jm'>{@link FluentObjectAssertion#isSameJsonAs(Object) isSameJsonAs(Object)}
* <li class='jm'>{@link FluentObjectAssertion#isSameSortedJsonAs(Object) isSameSortedJsonAs(Object)}
* <li class='jm'>{@link FluentObjectAssertion#isSameSerializedAs(Object, WriterSerializer) isSameSerializedAs(Object, WriterSerializer)}
* <li class='jm'>{@link FluentObjectAssertion#isType(Class) isType(Class)}
* <li class='jm'>{@link FluentObjectAssertion#isExactType(Class) isExactType(Class)}
* </ul>
* </ul>
*
* <h5 class='section'>Transform Methods:</h5>
* <p>
* <ul class='javatree'>
* <li class='jc'>{@link FluentListAssertion}
* <ul class='javatreec'>
* <li class='jm'>{@link FluentListAssertion#asStrings() asStrings()}
* <li class='jm'>{@link FluentListAssertion#asStrings(Function) asStrings(Function)}
* <li class='jm'>{@link FluentListAssertion#asCdl() asCdl()}
* <li class='jm'>{@link FluentListAssertion#asCdl(Function) asCdl(Function)}
* <li class='jm'>{@link FluentListAssertion#asItem(int) asItem(int)}
* <li class='jm'>{@link FluentListAssertion#asSorted() asSorted()}
* <li class='jm'>{@link FluentListAssertion#asSorted(Comparator) asSorted(Comparator)}
* </ul>
* <li class='jc'>{@link FluentCollectionAssertion}
* <ul class='javatreec'>
* <li class='jm'>{@link FluentCollectionAssertion#asStrings() asStrings()}
* <li class='jm'>{@link FluentCollectionAssertion#asSize() asSize()}
* </ul>
* <li class='jc'>{@link FluentObjectAssertion}
* <ul class='javatreec'>
* <li class='jm'>{@link FluentObjectAssertion#asString() asString()}
* <li class='jm'>{@link FluentObjectAssertion#asString(WriterSerializer) asString(WriterSerializer)}
* <li class='jm'>{@link FluentObjectAssertion#asString(Function) asString(Function)}
* <li class='jm'>{@link FluentObjectAssertion#asJson() asJson()}
* <li class='jm'>{@link FluentObjectAssertion#asJsonSorted() asJsonSorted()}
* <li class='jm'>{@link FluentObjectAssertion#asTransformed(Function) asApplied(Function)}
* <li class='jm'>{@link FluentObjectAssertion#asAny() asAny()}
* </ul>
* </ul>
*
* <h5 class='section'>Configuration Methods:</h5>
* <p>
* <ul class='javatree'>
* <li class='jc'>{@link Assertion}
* <ul class='javatreec'>
* <li class='jm'>{@link Assertion#setMsg(String, Object...) setMsg(String, Object...)}
* <li class='jm'>{@link Assertion#setOut(PrintStream) setOut(PrintStream)}
* <li class='jm'>{@link Assertion#setSilent() setSilent()}
* <li class='jm'>{@link Assertion#setStdOut() setStdOut()}
* <li class='jm'>{@link Assertion#setThrowable(Class) setThrowable(Class)}
* </ul>
* </ul>
*
* <h5 class='section'>See Also:</h5><ul>
* <li class='link'><a class="doclink" href="../../../../index.html#ja.Overview">Overview &gt; juneau-assertions &gt; Overview</a>
* </ul>
*
* @param <E> The element type.
* @param <R> The return type.
*/
@FluentSetters(returns="FluentListAssertion<E,R>")
public class FluentListAssertion<E,R> extends FluentCollectionAssertion<E,R> {
//-----------------------------------------------------------------------------------------------------------------
// Static
//-----------------------------------------------------------------------------------------------------------------
private static final Messages MESSAGES = Messages.of(FluentListAssertion.class, "Messages");
private static final String
MSG_listDidNotContainExpectedValueAt = MESSAGES.getString("listDidNotContainExpectedValueAt");
//-----------------------------------------------------------------------------------------------------------------
// Instance
//-----------------------------------------------------------------------------------------------------------------
/**
* Constructor.
*
* @param value
* The object being tested.
* <br>Can be <jk>null</jk>.
* @param returns
* The object to return after a test method is called.
* <br>If <jk>null</jk>, the test method returns this object allowing multiple test method calls to be
* used on the same assertion.
*/
public FluentListAssertion(List<E> value, R returns) {
this(null, value, returns);
}
/**
* Chained constructor.
*
* <p>
* Used when transforming one assertion into another so that the assertion config can be used by the new assertion.
*
* @param creator
* The assertion that created this assertion.
* <br>Should be <jk>null</jk> if this is the top-level assertion.
* @param value
* The object being tested.
* <br>Can be <jk>null</jk>.
* @param returns
* The object to return after a test method is called.
* <br>If <jk>null</jk>, the test method returns this object allowing multiple test method calls to be
* used on the same assertion.
*/
public FluentListAssertion(Assertion creator, List<E> value, R returns) {
super(creator, value, returns);
}
//-----------------------------------------------------------------------------------------------------------------
// Transform methods
//-----------------------------------------------------------------------------------------------------------------
/**
* Applies a transform on the inner object and returns a new inner object.
*
* @param function The transform to apply.
* @return A new assertion.
*/
public FluentListAssertion<E,R> asApplied2(Function<List<E>,List<E>> function) {
return new FluentListAssertion<>(this, function.apply((List<E>)orElse(null)), returns());
}
/**
* Returns an object assertion on the item specified at the specified index.
*
* <p>
* If the list is <jk>null</jk> or the index is out-of-bounds, the returned assertion is a null assertion
* (meaning {@link FluentAnyAssertion#isExists()} returns <jk>false</jk>).
*
* @param index The index of the item to retrieve from the list.
* @return A new assertion.
*/
public FluentAnyAssertion<E,R> asItem(int index) {
return new FluentAnyAssertion<>(this, at(index), returns());
}
/**
* Sorts the entries in this list.
*
* @return A new list assertion. The contents of the original list remain unchanged.
*/
public FluentListAssertion<E,R> asSorted() {
return new FluentListAssertion<>(this, toSortedList(null), returns());
}
/**
* Sorts the entries in this list using the specified comparator.
*
* @param comparator The comparator to use to sort the list.
* @return A new list assertion. The contents of the original list remain unchanged.
*/
public FluentListAssertion<E,R> asSorted(Comparator<E> comparator) {
return new FluentListAssertion<>(this, toSortedList(comparator), returns());
}
/**
* Returns the first entry from this list.
*
* @return A new list assertion.
*/
public FluentAnyAssertion<E,R> asFirst() {
return asItem(0);
}
/**
* Returns the last entry from this list.
*
* @return A new list assertion.
*/
public FluentAnyAssertion<E,R> asLast() {
return asItem(getSize()-1);
}
/**
* Returns the first X number of entries from this list.
*
* @param count The number of entries in the list to retrieve.
* @return A new list assertion. The contents of the original list remain unchanged.
*/
public FluentListAssertion<E,R> asFirst(int count) {
return new FluentListAssertion<>(this, valueIsNull() ? null : value().subList(0, count), returns());
}
/**
* Returns the first X number of entries from this list.
*
* @param count The number of entries in the list to retrieve.
* @return A new list assertion. The contents of the original list remain unchanged.
*/
public FluentListAssertion<E,R> asLast(int count) {
return new FluentListAssertion<>(this, valueIsNull() ? null : value().subList(getSize()-count, getSize()), returns());
}
/**
* Returns a sublist of the entries in this list.
*
* @param start The start index (inclusive).
* @param end The end index (exclusive).
* @return A new list assertion. The contents of the original list remain unchanged.
*/
public FluentListAssertion<E,R> asSublist(int start, int end) {
return new FluentListAssertion<>(this, valueIsNull() ? null : value().subList(start, end), returns());
}
/**
* Runs the stringify function against all values in this list and returns it as a fluent string list assertion.
*
* @param function The function to apply to all values in this list.
* @return A new fluent string list assertion. Never <jk>null</jk>.
*/
public FluentStringListAssertion<R> asStrings(Function<E,String> function) {
List<String> l = valueIsNull() ? null : value().stream().map(x -> function.apply(x)).collect(toList());
return new FluentStringListAssertion<>(this, l, returns());
}
/**
* Converts the entries in this list to a simple comma-delimited list and returns the value as a fluent string assertion.
*
* @return A fluent string assertion. Never <jk>null</jk>.
*/
public FluentStringAssertion<R> asCdl() {
return new FluentStringAssertion<>(this, valueIsNull() ? null : StringUtils.join(value(), ','), returns());
}
/**
* Converts the entries to strings using the specified stringify function, combines them into a simple comma-delimited list, and returns the value as a fluent string assertion.
*
* @param function The function to apply to all values in this list.
* @return A fluent string assertion. Never <jk>null</jk>.
*/
public FluentStringAssertion<R> asCdl(Function<E,String> function) {
List<String> l = valueIsNull() ? null : value().stream().map(x -> function.apply(x)).collect(toList());
return new FluentStringAssertion<>(this, join(l, ','), returns());
}
//-----------------------------------------------------------------------------------------------------------------
// Test methods
//-----------------------------------------------------------------------------------------------------------------
/**
* Asserts that the contents of this list contain the specified values.
*
* @param entries The expected entries in this list.
* @return The fluent return object.
* @throws AssertionError If assertion failed.
*/
@SuppressWarnings("unchecked")
public R isHas(E...entries) throws AssertionError {
Predicate<E>[] p = stream(entries).map(AssertionPredicates::eq).toArray(Predicate[]::new);
return isEach(p);
}
/**
* Asserts that the contents of this list pass the specified tests.
*
* @param tests
* The tests to run.
* <jk>null</jk> predicates are ignored.
* @return The fluent return object.
* @throws AssertionError If assertion failed.
*/
@SafeVarargs
public final R isEach(Predicate<E>...tests) throws AssertionError {
isSize(tests.length);
for (int i = 0, j = getSize(); i < j; i++) {
Predicate<E> t = tests[i];
if (t != null && ! t.test(at(i)))
throw error(MSG_listDidNotContainExpectedValueAt, i, getFailureMessage(t, at(i)));
}
return returns();
}
//-----------------------------------------------------------------------------------------------------------------
// Fluent setters
//-----------------------------------------------------------------------------------------------------------------
// <FluentSetters>
@Override /* GENERATED - org.apache.juneau.assertions.Assertion */
public FluentListAssertion<E,R> setMsg(String msg, Object...args) {
super.setMsg(msg, args);
return this;
}
@Override /* GENERATED - org.apache.juneau.assertions.Assertion */
public FluentListAssertion<E,R> setOut(PrintStream value) {
super.setOut(value);
return this;
}
@Override /* GENERATED - org.apache.juneau.assertions.Assertion */
public FluentListAssertion<E,R> setSilent() {
super.setSilent();
return this;
}
@Override /* GENERATED - org.apache.juneau.assertions.Assertion */
public FluentListAssertion<E,R> setStdOut() {
super.setStdOut();
return this;
}
@Override /* GENERATED - org.apache.juneau.assertions.Assertion */
public FluentListAssertion<E,R> setThrowable(Class<? extends java.lang.RuntimeException> value) {
super.setThrowable(value);
return this;
}
// </FluentSetters>
//-----------------------------------------------------------------------------------------------------------------
// Utility methods
//-----------------------------------------------------------------------------------------------------------------
@Override
protected List<E> value() throws AssertionError {
return (List<E>)super.value();
}
private E at(int index) throws AssertionError {
return valueIsNull() || index < 0 || index >= getSize() ? null : value().get(index);
}
private List<E> toSortedList(Comparator<E> comparator) {
return valueIsNull() ? null : sortedList(comparator, value());
}
}