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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/platform/geometry/calculation_expression_node.h"
#include "base/memory/scoped_refptr.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace blink {
namespace {
scoped_refptr<CalculationExpressionOperationNode> BuildOperationNode(
Vector<float> numbers,
CalculationOperator op) {
CalculationExpressionOperationNode::Children operands;
for (float number : numbers) {
scoped_refptr<CalculationExpressionNumberNode> operand =
base::MakeRefCounted<CalculationExpressionNumberNode>(number);
operands.push_back(operand);
}
scoped_refptr<CalculationExpressionOperationNode> operation =
base::MakeRefCounted<CalculationExpressionOperationNode>(
std::move(operands), op);
return operation;
}
} // namespace
TEST(CalculationExpressionOperationNodeTest, Comparison) {
scoped_refptr<CalculationExpressionOperationNode> operation1 =
BuildOperationNode({13.f, 17.f}, CalculationOperator::kMax);
scoped_refptr<CalculationExpressionOperationNode> operation2 =
BuildOperationNode({17.f, 13.f}, CalculationOperator::kMax);
scoped_refptr<CalculationExpressionOperationNode> operation3 =
BuildOperationNode({17.f, 13.f}, CalculationOperator::kMax);
EXPECT_EQ(operation1->Evaluate(FLT_MAX, {}),
operation2->Evaluate(FLT_MAX, {}));
EXPECT_EQ(*operation2, *operation3);
}
TEST(CalculationExpressionOperationNodeTest, SteppedValueFunctions) {
scoped_refptr<CalculationExpressionOperationNode> operation_nearest_1_1 =
BuildOperationNode({1, 1}, CalculationOperator::kRoundNearest);
scoped_refptr<CalculationExpressionOperationNode> operation_mod_1_1 =
BuildOperationNode({1, 1}, CalculationOperator::kMod);
scoped_refptr<CalculationExpressionOperationNode> operation_rem_1_1 =
BuildOperationNode({1, 1}, CalculationOperator::kRem);
scoped_refptr<CalculationExpressionOperationNode> operation_mod_18_5 =
BuildOperationNode({18, 5}, CalculationOperator::kMod);
scoped_refptr<CalculationExpressionOperationNode> operation_mod_17_5 =
BuildOperationNode({17, 5}, CalculationOperator::kMod);
CalculationExpressionOperationNode::Children operands_rem_two_mods;
operands_rem_two_mods.push_back(operation_mod_18_5);
operands_rem_two_mods.push_back(operation_mod_17_5);
scoped_refptr<CalculationExpressionOperationNode> operation_rem_two_mods =
base::MakeRefCounted<CalculationExpressionOperationNode>(
std::move(operands_rem_two_mods), CalculationOperator::kRem);
EXPECT_EQ(operation_nearest_1_1->Evaluate(FLT_MAX, {}), 1.f);
EXPECT_EQ(operation_mod_1_1->Evaluate(FLT_MAX, {}), 0.f);
EXPECT_EQ(operation_rem_1_1->Evaluate(FLT_MAX, {}), 0.f);
EXPECT_EQ(operation_rem_two_mods->Evaluate(FLT_MAX, {}), 1.f);
}
TEST(CalculationExpressionOperationNodeTest, ExponentialFunctions) {
EXPECT_EQ(BuildOperationNode({3.f, 4.f}, CalculationOperator::kHypot)
->Evaluate(FLT_MAX, {}),
5.f);
EXPECT_EQ(BuildOperationNode({3e37f, 4e37f}, CalculationOperator::kHypot)
->Evaluate(FLT_MAX, {}),
5e37f);
EXPECT_EQ(BuildOperationNode({8e-46f, 15e-46f}, CalculationOperator::kHypot)
->Evaluate(FLT_MAX, {}),
17e-46f);
EXPECT_EQ(
BuildOperationNode({6e37f, 6e37f, 17e37}, CalculationOperator::kHypot)
->Evaluate(FLT_MAX, {}),
19e37f);
EXPECT_EQ(BuildOperationNode({-3.f, 4.f}, CalculationOperator::kHypot)
->Evaluate(FLT_MAX, {}),
5.f);
EXPECT_EQ(BuildOperationNode({-3.f, -4.f}, CalculationOperator::kHypot)
->Evaluate(FLT_MAX, {}),
5.f);
EXPECT_EQ(BuildOperationNode({-0.f, +0.f}, CalculationOperator::kHypot)
->Evaluate(FLT_MAX, {}),
+0.f);
EXPECT_EQ(
BuildOperationNode({6e37f, -6e37f, -17e37}, CalculationOperator::kHypot)
->Evaluate(FLT_MAX, {}),
19e37f);
}
TEST(CalculationExpressionOperationNodeTest,
SignRelatedFunctionsPixelsAndPercent) {
scoped_refptr<CalculationExpressionNode> pixels_and_percent_node =
base::MakeRefCounted<CalculationExpressionPixelsAndPercentNode>(
PixelsAndPercent(-100.0f, -100.0f, /*has_explicit_pixels=*/true,
/*has_explicit_percent=*/true));
CalculationExpressionOperationNode::Children children;
children.push_back(pixels_and_percent_node);
scoped_refptr<const CalculationExpressionNode>
pixels_and_percent_operation_abs =
CalculationExpressionOperationNode::CreateSimplified(
std::move(children), CalculationOperator::kAbs);
EXPECT_TRUE(pixels_and_percent_operation_abs->IsOperation());
EXPECT_EQ(pixels_and_percent_operation_abs->Evaluate(100.0f, {}), 200.0f);
}
TEST(CalculationExpressionOperationNodeTest,
SignRelatedFunctionsPixelsAndZeroPercent) {
scoped_refptr<CalculationExpressionNode> pixels_and_zero_percent_node =
base::MakeRefCounted<CalculationExpressionPixelsAndPercentNode>(
PixelsAndPercent(-100.0f, 0.0f, /*has_explicit_pixels=*/true,
/*has_explicit_percent=*/false));
CalculationExpressionOperationNode::Children children;
children.push_back(pixels_and_zero_percent_node);
scoped_refptr<const CalculationExpressionNode>
pixels_and_zero_percent_operation_sign =
CalculationExpressionOperationNode::CreateSimplified(
std::move(children), CalculationOperator::kSign);
EXPECT_TRUE(pixels_and_zero_percent_operation_sign->IsNumber());
EXPECT_EQ(pixels_and_zero_percent_operation_sign->Evaluate(FLT_MAX, {}),
-1.0f);
}
TEST(CalculationExpressionOperationNodeTest, SignRelatedFunctionsPixelsOnly) {
scoped_refptr<CalculationExpressionNode> pixels_node =
base::MakeRefCounted<CalculationExpressionNumberNode>(-0.0f);
CalculationExpressionOperationNode::Children children;
children.push_back(pixels_node);
scoped_refptr<const CalculationExpressionNode> pixels_operation_sign =
CalculationExpressionOperationNode::CreateSimplified(
std::move(children), CalculationOperator::kSign);
EXPECT_TRUE(pixels_operation_sign->IsOperation());
EXPECT_TRUE(std::signbit(pixels_operation_sign->Evaluate(FLT_MAX, {})));
}
TEST(CalculationExpressionOperationNodeTest, SignRelatedFunctions) {
scoped_refptr<CalculationExpressionOperationNode> operation_abs_1 =
BuildOperationNode({1.0f}, CalculationOperator::kAbs);
scoped_refptr<CalculationExpressionOperationNode> operation_abs_minus_1 =
BuildOperationNode({-1.0f}, CalculationOperator::kAbs);
scoped_refptr<CalculationExpressionOperationNode> operation_abs_minus_0 =
BuildOperationNode({-0.0f}, CalculationOperator::kAbs);
scoped_refptr<CalculationExpressionOperationNode> operation_sign_1 =
BuildOperationNode({1.0f}, CalculationOperator::kSign);
scoped_refptr<CalculationExpressionOperationNode> operation_sign_minus_1 =
BuildOperationNode({-1.0f}, CalculationOperator::kSign);
scoped_refptr<CalculationExpressionOperationNode> operation_sign_0 =
BuildOperationNode({0.0f}, CalculationOperator::kSign);
scoped_refptr<CalculationExpressionOperationNode> operation_sign_minus_0 =
BuildOperationNode({-0.0f}, CalculationOperator::kSign);
EXPECT_EQ(operation_abs_1->Evaluate(FLT_MAX, {}), 1.0f);
EXPECT_EQ(operation_abs_minus_1->Evaluate(FLT_MAX, {}), 1.0f);
EXPECT_EQ(operation_abs_minus_0->Evaluate(FLT_MAX, {}), 0.0f);
EXPECT_EQ(operation_sign_1->Evaluate(FLT_MAX, {}), 1.0f);
EXPECT_EQ(operation_sign_minus_1->Evaluate(FLT_MAX, {}), -1.0f);
EXPECT_EQ(operation_sign_0->Evaluate(FLT_MAX, {}), 0.0f);
EXPECT_TRUE(std::signbit(operation_sign_minus_0->Evaluate(FLT_MAX, {})));
}
TEST(CalculationExpressionOperationNodeTest, ExplicitPixelsAndPercent) {
scoped_refptr<CalculationExpressionNode> node_1 =
base::MakeRefCounted<CalculationExpressionPixelsAndPercentNode>(
PixelsAndPercent(0.0f, -100.0f, /*has_explicit_pixels=*/false,
/*has_explicit_percent=*/true));
scoped_refptr<CalculationExpressionNode> node_2 =
base::MakeRefCounted<CalculationExpressionPixelsAndPercentNode>(
PixelsAndPercent(100.0f));
auto operation_node = CalculationExpressionOperationNode::CreateSimplified(
{node_1, node_2}, CalculationOperator::kAdd);
auto* pixels_and_percent_node =
DynamicTo<CalculationExpressionPixelsAndPercentNode>(*operation_node);
EXPECT_TRUE(operation_node->IsPixelsAndPercent());
EXPECT_TRUE(pixels_and_percent_node->HasExplicitPixels());
EXPECT_TRUE(pixels_and_percent_node->HasExplicitPercent());
}
TEST(CalculationExpressionOperationNodeTest, NonExplicitPixelsAndPercent) {
scoped_refptr<CalculationExpressionNode> node_1 =
base::MakeRefCounted<CalculationExpressionPixelsAndPercentNode>(
PixelsAndPercent(10.0f));
scoped_refptr<CalculationExpressionNode> node_2 =
base::MakeRefCounted<CalculationExpressionPixelsAndPercentNode>(
PixelsAndPercent(100.0f));
auto operation_node = CalculationExpressionOperationNode::CreateSimplified(
{node_1, node_2}, CalculationOperator::kAdd);
auto* pixels_and_percent_node =
DynamicTo<CalculationExpressionPixelsAndPercentNode>(*operation_node);
EXPECT_TRUE(operation_node->IsPixelsAndPercent());
EXPECT_TRUE(pixels_and_percent_node->HasExplicitPixels());
EXPECT_FALSE(pixels_and_percent_node->HasExplicitPercent());
}
TEST(CalculationExpressionOperationNodeTest, ProgressNotation) {
EXPECT_EQ(BuildOperationNode({3.f, 0.f, 1.f}, CalculationOperator::kProgress)
->Evaluate(FLT_MAX, {}),
1.f);
EXPECT_EQ(
BuildOperationNode({10.f, 5.f, 10.f}, CalculationOperator::kProgress)
->Evaluate(FLT_MAX, {}),
1.f);
EXPECT_TRUE(std::isnan(
BuildOperationNode({0.f, 0.f, 0.f}, CalculationOperator::kProgress)
->Evaluate(FLT_MAX, {})));
}
TEST(CalculationExpressionOperationNodeTest, ColorChannelKeywordNode) {
scoped_refptr<CalculationExpressionColorChannelKeywordNode> node =
base::MakeRefCounted<CalculationExpressionColorChannelKeywordNode>(
ColorChannelKeyword::kAlpha);
EXPECT_TRUE(node->IsColorChannelKeyword());
EXPECT_EQ(node->Value(), ColorChannelKeyword::kAlpha);
EXPECT_EQ(node->Zoom(1).get(), node.get());
}
TEST(CalculationExpressionOperationNodeTest, ColorChannelKeywordNode_Equals) {
scoped_refptr<CalculationExpressionColorChannelKeywordNode> node_1 =
base::MakeRefCounted<CalculationExpressionColorChannelKeywordNode>(
ColorChannelKeyword::kS);
scoped_refptr<CalculationExpressionColorChannelKeywordNode> node_1a =
base::MakeRefCounted<CalculationExpressionColorChannelKeywordNode>(
ColorChannelKeyword::kS);
scoped_refptr<CalculationExpressionColorChannelKeywordNode> node_2 =
base::MakeRefCounted<CalculationExpressionColorChannelKeywordNode>(
ColorChannelKeyword::kL);
scoped_refptr<CalculationExpressionNode> node_3 =
base::MakeRefCounted<CalculationExpressionNumberNode>(-0.5f);
EXPECT_TRUE(node_1->Equals(*node_1a));
EXPECT_FALSE(node_1->Equals(*node_2));
EXPECT_FALSE(node_1->Equals(*node_3));
}
TEST(CalculationExpressionOperationNodeTest, ColorChannelKeywordNode_Evaluate) {
scoped_refptr<CalculationExpressionNode> node_1 =
base::MakeRefCounted<CalculationExpressionColorChannelKeywordNode>(
ColorChannelKeyword::kH);
scoped_refptr<CalculationExpressionNode> node_2 =
base::MakeRefCounted<CalculationExpressionNumberNode>(0.5f);
auto operation_node = CalculationExpressionOperationNode::CreateSimplified(
{node_1, node_2}, CalculationOperator::kMultiply);
EvaluationInput evaluation_input;
evaluation_input.color_channel_keyword_values = {
{ColorChannelKeyword::kH, 120},
{ColorChannelKeyword::kS, 0.3},
{ColorChannelKeyword::kL, 0.6}};
EXPECT_EQ(operation_node->Evaluate(FLT_MAX, evaluation_input), 60.f);
// Test behavior when channel values are missing.
EXPECT_EQ(operation_node->Evaluate(FLT_MAX, {}), 0.f);
}
} // namespace blink
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