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/*
* Copyright (c) 2020, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibTest/TestCase.h>
#include <AK/AllOf.h>
#include <AK/Array.h>
#include <AK/Vector.h>
TEST_CASE(should_determine_if_predicate_applies_to_all_elements_in_container)
{
constexpr Array<int, 10> a {};
static_assert(all_of(a.begin(), a.end(), [](auto elem) { return elem == 0; }));
static_assert(!all_of(a.begin(), a.end(), [](auto elem) { return elem == 1; }));
EXPECT(all_of(a.begin(), a.end(), [](auto elem) { return elem == 0; }));
EXPECT(!all_of(a.begin(), a.end(), [](auto elem) { return elem == 1; }));
}
TEST_CASE(container_form)
{
constexpr Array a { 10, 20, 30 };
static_assert(all_of(a, [](auto elem) { return elem > 0; }));
static_assert(!all_of(a, [](auto elem) { return elem > 10; }));
EXPECT(all_of(a, [](auto elem) { return elem > 0; }));
EXPECT(!all_of(a, [](auto elem) { return elem > 10; }));
Vector b { 10, 20, 30 };
EXPECT(all_of(b, [](auto elem) { return elem > 0; }));
EXPECT(!all_of(b, [](auto elem) { return elem > 10; }));
struct ArbitraryIterable {
struct ArbitraryIterator {
ArbitraryIterator(int v)
: value(v)
{
}
bool operator==(ArbitraryIterator const&) const = default;
int operator*() const { return value; }
ArbitraryIterator& operator++()
{
++value;
return *this;
}
int value;
};
ArbitraryIterator begin() const { return 0; }
ArbitraryIterator end() const { return 20; }
};
ArbitraryIterable c;
EXPECT(all_of(c, [](auto elem) { return elem < 20; }));
EXPECT(!all_of(c, [](auto elem) { return elem > 10; }));
}
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