/**************************************************************************/
/* test_array.cpp */
/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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#include "tests/test_macros.h"
TEST_FORCE_LINK(test_array)
#include "core/object/callable_mp.h"
#include "core/variant/array.h"
#include "core/variant/typed_array.h"
#include "tests/test_tools.h"
namespace TestArray {
TEST_CASE("[Array] initializer list") {
Array arr = { 0, 1, "test", true, { 0.0, 1.0 } };
CHECK(arr.size() == 5);
CHECK(arr[0] == Variant(0));
CHECK(arr[1] == Variant(1));
CHECK(arr[2] == Variant("test"));
CHECK(arr[3] == Variant(true));
CHECK(arr[4] == Variant({ 0.0, 1.0 }));
arr = { "reassign" };
CHECK(arr.size() == 1);
CHECK(arr[0] == Variant("reassign"));
TypedArray<int> typed_arr = { 0, 1, 2 };
CHECK(typed_arr.size() == 3);
CHECK(typed_arr[0] == Variant(0));
CHECK(typed_arr[1] == Variant(1));
CHECK(typed_arr[2] == Variant(2));
}
TEST_CASE("[Array] size(), clear(), and is_empty()") {
Array arr;
CHECK(arr.size() == 0);
CHECK(arr.is_empty());
arr.push_back(1);
CHECK(arr.size() == 1);
arr.clear();
CHECK(arr.is_empty());
CHECK(arr.size() == 0);
}
TEST_CASE("[Array] fill()") {
Array arr;
arr.resize(5);
arr.fill(7);
Array expected = { 7, 7, 7, 7, 7 };
CHECK_EQ(arr, expected);
Array empty;
empty.fill(7);
Array empty_expected;
CHECK_EQ(empty, empty_expected);
}
TEST_CASE("[Array] reverse()") {
Array odd_sized = { 1, 2, 3 };
odd_sized.reverse();
Array odd_sized_expected = { 3, 2, 1 };
CHECK_EQ(odd_sized, odd_sized_expected);
Array even_sized = { "a", "b", "c", "d" };
even_sized.reverse();
Array even_sized_expected = { "d", "c", "b", "a" };
CHECK_EQ(even_sized, even_sized_expected);
Array empty;
empty.reverse();
Array empty_expected;
CHECK_EQ(empty, empty_expected);
}
TEST_CASE("[Array] Assignment and comparison operators") {
Array arr1;
Array arr2;
arr1.push_back(1);
CHECK(arr1 != arr2);
CHECK(arr1 > arr2);
CHECK(arr1 >= arr2);
arr2.push_back(2);
CHECK(arr1 != arr2);
CHECK(arr1 < arr2);
CHECK(arr1 <= arr2);
CHECK(arr2 > arr1);
CHECK(arr2 >= arr1);
Array arr3 = arr2;
CHECK(arr3 == arr2);
}
TEST_CASE("[Array] append()") {
Array arr;
arr.append(1);
arr.append(2);
arr.append(3);
arr.append("test");
Array expected = { 1, 2, 3, "test" };
CHECK_EQ(arr, expected);
}
TEST_CASE("[Array] append_array()") {
Array arr1;
Array arr2;
arr1.push_back(1);
arr1.append_array(arr2);
CHECK(arr1.size() == 1);
arr2.push_back(2);
arr1.append_array(arr2);
CHECK(arr1.size() == 2);
CHECK(int(arr1[0]) == 1);
CHECK(int(arr1[1]) == 2);
}
TEST_CASE("[Array] resize(), insert(), and erase()") {
Array arr;
arr.resize(2);
CHECK(arr.size() == 2);
arr.insert(0, 1);
CHECK(int(arr[0]) == 1);
arr.insert(0, 2);
CHECK(int(arr[0]) == 2);
arr.erase(2);
CHECK(int(arr[0]) == 1);
arr.resize(0);
CHECK(arr.size() == 0);
arr.insert(0, 8);
CHECK(arr.size() == 1);
arr.insert(1, 16);
CHECK(int(arr[1]) == 16);
arr.insert(-1, 3);
CHECK(int(arr[1]) == 3);
}
TEST_CASE("[Array] front() and back()") {
Array arr;
arr.push_back(1);
CHECK(int(arr.front()) == 1);
CHECK(int(arr.back()) == 1);
arr.push_back(3);
CHECK(int(arr.front()) == 1);
CHECK(int(arr.back()) == 3);
}
TEST_CASE("[Array] has() and count()") {
Array arr = { 1, 1 };
CHECK(arr.has(1));
CHECK(!arr.has(2));
CHECK(arr.count(1) == 2);
CHECK(arr.count(2) == 0);
}
TEST_CASE("[Array] remove_at()") {
Array arr = { 1, 2 };
arr.remove_at(0);
CHECK(arr.size() == 1);
CHECK(int(arr[0]) == 2);
arr.remove_at(0);
CHECK(arr.size() == 0);
// Negative index.
arr.push_back(3);
arr.push_back(4);
arr.remove_at(-1);
CHECK(arr.size() == 1);
CHECK(int(arr[0]) == 3);
arr.remove_at(-1);
CHECK(arr.size() == 0);
// The array is now empty; try to use `remove_at()` again.
// Normally, this prints an error message so we silence it.
ERR_PRINT_OFF;
arr.remove_at(0);
ERR_PRINT_ON;
CHECK(arr.size() == 0);
}
TEST_CASE("[Array] get() and set()") {
Array arr = { 1, 2, 3 };
CHECK_EQ(int(arr.get(0)), 1);
CHECK_EQ(int(arr.get(1)), 2);
CHECK_EQ(int(arr.get(2)), 3);
arr.set(1, 5);
CHECK_EQ(int(arr.get(1)), 5);
}
TEST_CASE("[Array] sort() and bsearch()") {
Array arr = { 3, 4, 2, 1 };
arr.sort();
Array expected = { 1, 2, 3, 4 };
CHECK_EQ(arr, expected);
CHECK_EQ(arr.bsearch(1), 0);
CHECK_EQ(arr.bsearch(3), 2);
CHECK_EQ(arr.bsearch(-100), 0);
CHECK_EQ(arr.bsearch(100), 4);
}
static bool _order_descending(int p_a, int p_b) {
return p_b < p_a;
}
TEST_CASE("[Array] sort_custom() and bsearch_custom()") {
Array arr = { 3, 4, 2, 1 };
arr.sort_custom(callable_mp_static(_order_descending));
Array expected = { 4, 3, 2, 1 };
CHECK_EQ(arr, expected);
CHECK_EQ(arr.bsearch_custom(1, callable_mp_static(_order_descending)), 3);
CHECK_EQ(arr.bsearch_custom(4, callable_mp_static(_order_descending)), 0);
CHECK_EQ(arr.bsearch_custom(100, callable_mp_static(_order_descending)), 0);
CHECK_EQ(arr.bsearch_custom(-100, callable_mp_static(_order_descending)), 4);
}
static bool _is_even(int p_num) {
return p_num % 2 == 0;
}
static bool _is_odd(int p_num) {
return p_num % 2 == 1;
}
TEST_CASE("[Array] filter(), any(), all()") {
Array nums = { 1, 2, 3, 4, 5, 6, 7 };
CHECK(nums.any(callable_mp_static(_is_odd)));
CHECK(nums.any(callable_mp_static(_is_even)));
CHECK(!nums.all(callable_mp_static(_is_odd)));
CHECK(!nums.all(callable_mp_static(_is_even)));
Array odd = nums.filter(callable_mp_static(_is_odd));
Array odd_expected = { 1, 3, 5, 7 };
CHECK_EQ(odd, odd_expected);
Array even = nums.filter(callable_mp_static(_is_even));
Array even_expected = { 2, 4, 6 };
CHECK_EQ(even, even_expected);
CHECK(odd.all(callable_mp_static(_is_odd)));
CHECK(odd.any(callable_mp_static(_is_odd)));
CHECK(!odd.all(callable_mp_static(_is_even)));
CHECK(!odd.any(callable_mp_static(_is_even)));
}
static int _add(int p_a, int p_b) {
return p_a + p_b;
}
TEST_CASE("[Array] map() and reduce()") {
Array array = { 1, 2, 3, 4, 5 };
Array mapped = array.map(callable_mp_static(_add).bind(5));
Array mapped_expected = { 6, 7, 8, 9, 10 };
CHECK_EQ(mapped, mapped_expected);
Variant sum = 0;
CHECK_EQ(int(array.reduce(callable_mp_static(_add), sum)), 15);
}
TEST_CASE("[Array] push_front(), pop_front(), pop_back()") {
Array arr;
arr.push_front(1);
arr.push_front(2);
CHECK(int(arr[0]) == 2);
arr.pop_front();
CHECK(int(arr[0]) == 1);
CHECK(arr.size() == 1);
arr.push_front(2);
arr.push_front(3);
arr.pop_back();
CHECK(int(arr[1]) == 2);
CHECK(arr.size() == 2);
}
TEST_CASE("[Array] pop_at()") {
ErrorDetector ed;
Array arr = { 2, 4, 6, 8, 10 };
REQUIRE(int(arr.pop_at(2)) == 6);
REQUIRE(arr.size() == 4);
CHECK(int(arr[0]) == 2);
CHECK(int(arr[1]) == 4);
CHECK(int(arr[2]) == 8);
CHECK(int(arr[3]) == 10);
REQUIRE(int(arr.pop_at(2)) == 8);
REQUIRE(arr.size() == 3);
CHECK(int(arr[0]) == 2);
CHECK(int(arr[1]) == 4);
CHECK(int(arr[2]) == 10);
// Negative index.
REQUIRE(int(arr.pop_at(-1)) == 10);
REQUIRE(arr.size() == 2);
CHECK(int(arr[0]) == 2);
CHECK(int(arr[1]) == 4);
// Invalid pop.
ed.clear();
ERR_PRINT_OFF;
const Variant ret = arr.pop_at(-15);
ERR_PRINT_ON;
REQUIRE(ret.is_null());
CHECK(ed.has_error);
REQUIRE(int(arr.pop_at(0)) == 2);
REQUIRE(arr.size() == 1);
CHECK(int(arr[0]) == 4);
REQUIRE(int(arr.pop_at(0)) == 4);
REQUIRE(arr.is_empty());
// Pop from empty array.
ed.clear();
REQUIRE(arr.pop_at(24).is_null());
CHECK_FALSE(ed.has_error);
}
TEST_CASE("[Array] max() and min()") {
Array arr;
arr.push_back(3);
arr.push_front(4);
arr.push_back(5);
arr.push_back(2);
int max = int(arr.max());
int min = int(arr.min());
CHECK(max == 5);
CHECK(min == 2);
}
TEST_CASE("[Array] slice()") {
Array array = { 0, 1, 2, 3, 4, 5 };
Array slice0 = array.slice(0, 0);
CHECK(slice0.size() == 0);
Array slice1 = array.slice(1, 3);
CHECK(slice1.size() == 2);
CHECK(slice1[0] == Variant(1));
CHECK(slice1[1] == Variant(2));
Array slice2 = array.slice(1, -1);
CHECK(slice2.size() == 4);
CHECK(slice2[0] == Variant(1));
CHECK(slice2[1] == Variant(2));
CHECK(slice2[2] == Variant(3));
CHECK(slice2[3] == Variant(4));
Array slice3 = array.slice(3);
CHECK(slice3.size() == 3);
CHECK(slice3[0] == Variant(3));
CHECK(slice3[1] == Variant(4));
CHECK(slice3[2] == Variant(5));
Array slice4 = array.slice(2, -2);
CHECK(slice4.size() == 2);
CHECK(slice4[0] == Variant(2));
CHECK(slice4[1] == Variant(3));
Array slice5 = array.slice(-2);
CHECK(slice5.size() == 2);
CHECK(slice5[0] == Variant(4));
CHECK(slice5[1] == Variant(5));
Array slice6 = array.slice(2, 42);
CHECK(slice6.size() == 4);
CHECK(slice6[0] == Variant(2));
CHECK(slice6[1] == Variant(3));
CHECK(slice6[2] == Variant(4));
CHECK(slice6[3] == Variant(5));
Array slice7 = array.slice(4, 0, -2);
CHECK(slice7.size() == 2);
CHECK(slice7[0] == Variant(4));
CHECK(slice7[1] == Variant(2));
Array slice8 = array.slice(5, 0, -2);
CHECK(slice8.size() == 3);
CHECK(slice8[0] == Variant(5));
CHECK(slice8[1] == Variant(3));
CHECK(slice8[2] == Variant(1));
Array slice9 = array.slice(10, 0, -2);
CHECK(slice9.size() == 3);
CHECK(slice9[0] == Variant(5));
CHECK(slice9[1] == Variant(3));
CHECK(slice9[2] == Variant(1));
Array slice10 = array.slice(2, -10, -1);
CHECK(slice10.size() == 3);
CHECK(slice10[0] == Variant(2));
CHECK(slice10[1] == Variant(1));
CHECK(slice10[2] == Variant(0));
ERR_PRINT_OFF;
Array slice11 = array.slice(4, 1);
CHECK(slice11.size() == 0);
Array slice12 = array.slice(3, -4);
CHECK(slice12.size() == 0);
ERR_PRINT_ON;
Array slice13 = Array().slice(1);
CHECK(slice13.size() == 0);
Array slice14 = array.slice(6);
CHECK(slice14.size() == 0);
}
TEST_CASE("[Array] Duplicate array") {
// a = [1, [2, 2], {3: 3}]
Array a = { 1, { 2, 2 }, Dictionary({ { 3, 3 } }) };
// Deep copy
Array deep_a = a.duplicate(true);
CHECK_MESSAGE(deep_a.id() != a.id(), "Should create a new array");
CHECK_MESSAGE(Array(deep_a[1]).id() != Array(a[1]).id(), "Should clone nested array");
CHECK_MESSAGE(Dictionary(deep_a[2]).id() != Dictionary(a[2]).id(), "Should clone nested dictionary");
CHECK_EQ(deep_a, a);
deep_a.push_back(1);
CHECK_NE(deep_a, a);
deep_a.pop_back();
Array(deep_a[1]).push_back(1);
CHECK_NE(deep_a, a);
Array(deep_a[1]).pop_back();
CHECK_EQ(deep_a, a);
// Shallow copy
Array shallow_a = a.duplicate(false);
CHECK_MESSAGE(shallow_a.id() != a.id(), "Should create a new array");
CHECK_MESSAGE(Array(shallow_a[1]).id() == Array(a[1]).id(), "Should keep nested array");
CHECK_MESSAGE(Dictionary(shallow_a[2]).id() == Dictionary(a[2]).id(), "Should keep nested dictionary");
CHECK_EQ(shallow_a, a);
Array(shallow_a).push_back(1);
CHECK_NE(shallow_a, a);
}
TEST_CASE("[Array] Duplicate recursive array") {
// Self recursive
Array a;
a.push_back(a);
Array a_shallow = a.duplicate(false);
CHECK_EQ(a, a_shallow);
// Deep copy of recursive array ends up with recursion limit and return
// an invalid result (multiple nested arrays), the point is we should
// not end up with a segfault and an error log should be printed
ERR_PRINT_OFF;
a.duplicate(true);
ERR_PRINT_ON;
// Nested recursive
Array a1;
Array a2;
a2.push_back(a1);
a1.push_back(a2);
Array a1_shallow = a1.duplicate(false);
CHECK_EQ(a1, a1_shallow);
// Same deep copy issue as above
ERR_PRINT_OFF;
a1.duplicate(true);
ERR_PRINT_ON;
// Break the recursivity otherwise Array teardown will leak memory
a.clear();
a1.clear();
a2.clear();
}
TEST_CASE("[Array] Hash array") {
// a = [1, [2, 2], {3: 3}]
Array a = { 1, { 2, 2 }, Dictionary({ { 3, 3 } }) };
uint32_t original_hash = a.hash();
a.push_back(1);
CHECK_NE(a.hash(), original_hash);
a.pop_back();
CHECK_EQ(a.hash(), original_hash);
Array(a[1]).push_back(1);
CHECK_NE(a.hash(), original_hash);
Array(a[1]).pop_back();
CHECK_EQ(a.hash(), original_hash);
(Dictionary(a[2]))[1] = 1;
CHECK_NE(a.hash(), original_hash);
Dictionary(a[2]).erase(1);
CHECK_EQ(a.hash(), original_hash);
Array a2 = a.duplicate(true);
CHECK_EQ(a2.hash(), a.hash());
}
TEST_CASE("[Array] Hash recursive array") {
Array a1;
a1.push_back(a1);
Array a2;
a2.push_back(a2);
// Hash should reach recursion limit
ERR_PRINT_OFF;
CHECK_EQ(a1.hash(), a2.hash());
ERR_PRINT_ON;
// Break the recursivity otherwise Array teardown will leak memory
a1.clear();
a2.clear();
}
TEST_CASE("[Array] Empty comparison") {
Array a1;
Array a2;
// test both operator== and operator!=
CHECK_EQ(a1, a2);
CHECK_FALSE(a1 != a2);
}
TEST_CASE("[Array] Flat comparison") {
Array a1 = { 1 };
Array a2 = { 1 };
Array other_a = { 2 };
// test both operator== and operator!=
CHECK_EQ(a1, a1); // compare self
CHECK_FALSE(a1 != a1);
CHECK_EQ(a1, a2); // different equivalent arrays
CHECK_FALSE(a1 != a2);
CHECK_NE(a1, other_a); // different arrays with different content
CHECK_FALSE(a1 == other_a);
}
TEST_CASE("[Array] Nested array comparison") {
// a1 = [[[1], 2], 3]
Array a1 = { { { 1 }, 2 }, 3 };
Array a2 = a1.duplicate(true);
// other_a = [[[1, 0], 2], 3]
Array other_a = { { { 1, 0 }, 2 }, 3 };
// test both operator== and operator!=
CHECK_EQ(a1, a1); // compare self
CHECK_FALSE(a1 != a1);
CHECK_EQ(a1, a2); // different equivalent arrays
CHECK_FALSE(a1 != a2);
CHECK_NE(a1, other_a); // different arrays with different content
CHECK_FALSE(a1 == other_a);
}
TEST_CASE("[Array] Nested dictionary comparison") {
// a1 = [{1: 2}, 3]
Array a1 = { Dictionary({ { 1, 2 } }), 3 };
Array a2 = a1.duplicate(true);
// other_a = [{1: 0}, 3]
Array other_a = { Dictionary({ { 1, 0 } }), 3 };
// test both operator== and operator!=
CHECK_EQ(a1, a1); // compare self
CHECK_FALSE(a1 != a1);
CHECK_EQ(a1, a2); // different equivalent arrays
CHECK_FALSE(a1 != a2);
CHECK_NE(a1, other_a); // different arrays with different content
CHECK_FALSE(a1 == other_a);
}
TEST_CASE("[Array] Recursive comparison") {
Array a1;
a1.push_back(a1);
Array a2;
a2.push_back(a2);
// Comparison should reach recursion limit
ERR_PRINT_OFF;
CHECK_EQ(a1, a2);
CHECK_FALSE(a1 != a2);
ERR_PRINT_ON;
a1.push_back(1);
a2.push_back(1);
// Comparison should reach recursion limit
ERR_PRINT_OFF;
CHECK_EQ(a1, a2);
CHECK_FALSE(a1 != a2);
ERR_PRINT_ON;
a1.push_back(1);
a2.push_back(2);
// Comparison should reach recursion limit
ERR_PRINT_OFF;
CHECK_NE(a1, a2);
CHECK_FALSE(a1 == a2);
ERR_PRINT_ON;
// Break the recursivity otherwise Array tearndown will leak memory
a1.clear();
a2.clear();
}
TEST_CASE("[Array] Recursive self comparison") {
Array a1;
Array a2;
a2.push_back(a1);
a1.push_back(a2);
CHECK_EQ(a1, a1);
CHECK_FALSE(a1 != a1);
// Break the recursivity otherwise Array tearndown will leak memory
a1.clear();
a2.clear();
}
TEST_CASE("[Array] Iteration") {
Array a1 = { 1, 2, 3 };
Array a2 = { 1, 2, 3 };
int idx = 0;
for (Variant &E : a1) {
CHECK_EQ(int(a2[idx]), int(E));
idx++;
}
CHECK_EQ(idx, a1.size());
idx = 0;
for (const Variant &E : (const Array &)a1) {
CHECK_EQ(int(a2[idx]), int(E));
idx++;
}
CHECK_EQ(idx, a1.size());
a1.clear();
}
TEST_CASE("[Array] Iteration and modification") {
Array a1 = { 1, 2, 3 };
Array a2 = { 2, 3, 4 };
Array a3 = { 1, 2, 3 };
Array a4 = { 1, 2, 3 };
a3.make_read_only();
int idx = 0;
for (Variant &E : a1) {
E = a2[idx];
idx++;
}
CHECK_EQ(a1, a2);
// Ensure read-only is respected.
idx = 0;
for (Variant &E : a3) {
E = a2[idx];
}
CHECK_EQ(a3, a4);
a1.clear();
a2.clear();
a4.clear();
}
TEST_CASE("[Array] Typed copying") {
TypedArray<int> a1 = { 1 };
TypedArray<double> a2 = { 1.0 };
Array a3 = a1;
TypedArray<int> a4 = a3;
Array a5 = a2;
TypedArray<int> a6 = a5;
a3[0] = 2;
a4[0] = 3;
// Same typed TypedArray should be shared.
CHECK_EQ(a1[0], Variant(3));
CHECK_EQ(a3[0], Variant(3));
CHECK_EQ(a4[0], Variant(3));
a5[0] = 2.0;
a6[0] = 3.0;
// Different typed TypedArray should not be shared.
CHECK_EQ(a2[0], Variant(2.0));
CHECK_EQ(a5[0], Variant(2.0));
CHECK_EQ(a6[0], Variant(3.0));
a1.clear();
a2.clear();
a3.clear();
a4.clear();
a5.clear();
a6.clear();
}
TEST_CASE("[Array] find() and rfind()") {
Array array = { "a", "b", "c", "a", "b", "c" };
CHECK_EQ(array.find("a"), 0);
CHECK_EQ(array.find("c"), 2);
CHECK_EQ(array.find("a", 1), 3);
CHECK_EQ(array.rfind("b"), 4);
CHECK_EQ(array.rfind("c", -2), 2);
}
static bool _find_custom_callable(const Variant &p_val) {
return (int)p_val % 2 == 0;
}
TEST_CASE("[Array] Test find_custom") {
Array a1 = { 1, 3, 4, 5, 8, 9 };
// Find first even number.
int index = a1.find_custom(callable_mp_static(_find_custom_callable));
CHECK_EQ(index, 2);
}
TEST_CASE("[Array] Test rfind_custom") {
Array a1 = { 1, 3, 4, 5, 8, 9 };
// Find last even number.
int index = a1.rfind_custom(callable_mp_static(_find_custom_callable));
CHECK_EQ(index, 4);
}
TEST_CASE("[Array] Test typed arrays") {
Array arr1;
CHECK_FALSE(arr1.is_typed());
arr1.set_typed(Variant::FLOAT, StringName(), Variant());
CHECK(arr1.is_typed());
CHECK_EQ(arr1.get_typed_builtin(), Variant::FLOAT);
arr1.push_back(1);
CHECK_EQ(arr1.size(), 1);
ERR_PRINT_OFF;
arr1.push_back("test wrong type");
CHECK_EQ(arr1.size(), 1);
ERR_PRINT_ON;
Array arr2;
arr2.set_typed(Variant::INT, StringName(), Variant());
CHECK_FALSE(arr1.is_same_typed(arr2));
Array arr3;
arr3.set_typed(Variant::OBJECT, "Node", Variant());
CHECK_EQ(arr3.get_typed_class_name(), "Node");
}
} // namespace TestArray