/**

* Copyright (c) 2014-present, Facebook, Inc.

* All rights reserved.

*

* This source code is licensed under the BSD-style license found in the

* LICENSE file in the root directory of this source tree. An additional grant

* of patent rights can be found in the PATENTS file in the same directory.

*/

#include <CSSLayout/CSSLayout.h>

#include <gtest/gtest.h>

static CSSSize _measure(CSSNodeRef node,

float width,

CSSMeasureMode widthMode,

float height,

CSSMeasureMode heightMode) {

int *measureCount = (int*) CSSNodeGetContext(node);

if (measureCount) {

(*measureCount)++;

}

// BEGIN_UNITY @joce 10-26-2016 CompileForVS2010

// return CSSSize {

// .width = 10,

// .height = 10,

// };

CSSSize size;

size.width = 10;

size.height = 10;

return size;

// END_UNITY

}

TEST(CSSLayoutTest, dont_measure_single_grow_shrink_child) {

const CSSNodeRef root = CSSNodeNew();

CSSNodeStyleSetWidth(root, 100);

CSSNodeStyleSetHeight(root, 100);

int measureCount = 0;

const CSSNodeRef root_child0 = CSSNodeNew();

CSSNodeSetContext(root_child0, &measureCount);

CSSNodeSetMeasureFunc(root_child0, _measure);

CSSNodeStyleSetFlexGrow(root_child0, 1);

CSSNodeStyleSetFlexShrink(root_child0, 1);

CSSNodeInsertChild(root, root_child0, 0);

CSSNodeCalculateLayout(root, CSSUndefined, CSSUndefined, CSSDirectionLTR);

ASSERT_EQ(0, measureCount);

CSSNodeFreeRecursive(root);

}

#if GTEST_HAS_DEATH_TEST

TEST(CSSLayoutTest, cannot_add_child_to_node_with_measure_func) {

const CSSNodeRef root = CSSNodeNew();

CSSNodeSetMeasureFunc(root, _measure);

const CSSNodeRef root_child0 = CSSNodeNew();

ASSERT_DEATH(CSSNodeInsertChild(root, root_child0, 0), "Cannot add child.*");

CSSNodeFree(root_child0);

CSSNodeFreeRecursive(root);

}

TEST(CSSLayoutTest, cannot_add_nonnull_measure_func_to_non_leaf_node) {

const CSSNodeRef root = CSSNodeNew();

const CSSNodeRef root_child0 = CSSNodeNew();

CSSNodeInsertChild(root, root_child0, 0);

ASSERT_DEATH(CSSNodeSetMeasureFunc(root, _measure), "Cannot set measure function.*");

CSSNodeFreeRecursive(root);

}

TEST(CSSLayoutTest, can_nullify_measure_func_on_any_node) {

const CSSNodeRef root = CSSNodeNew();

CSSNodeInsertChild(root, CSSNodeNew(), 0);

CSSNodeSetMeasureFunc(root, NULL);

ASSERT_TRUE(CSSNodeGetMeasureFunc(root) == NULL);

CSSNodeFreeRecursive(root);

}

#endif