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70 lines (52 loc) · 1.94 KB
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#include "eval/eval/evaluator_stack.h"
#include "base/attribute.h"
#include "common/value.h"
#include "internal/testing.h"
namespace google::api::expr::runtime {
namespace {
// Test Value Stack Push/Pop operation
TEST(EvaluatorStackTest, StackPushPop) {
cel::Attribute attribute("name", {});
EvaluatorStack stack(10);
stack.Push(cel::IntValue(1));
stack.Push(cel::IntValue(2), AttributeTrail());
stack.Push(cel::IntValue(3), AttributeTrail("name"));
ASSERT_EQ(stack.Peek().GetInt().NativeValue(), 3);
ASSERT_FALSE(stack.PeekAttribute().empty());
ASSERT_EQ(stack.PeekAttribute().attribute(), attribute);
stack.Pop(1);
ASSERT_EQ(stack.Peek().GetInt().NativeValue(), 2);
ASSERT_TRUE(stack.PeekAttribute().empty());
stack.Pop(1);
ASSERT_EQ(stack.Peek().GetInt().NativeValue(), 1);
ASSERT_TRUE(stack.PeekAttribute().empty());
}
// Test that inner stacks within value stack retain the equality of their sizes.
TEST(EvaluatorStackTest, StackBalanced) {
EvaluatorStack stack(10);
ASSERT_EQ(stack.size(), stack.attribute_size());
stack.Push(cel::IntValue(1));
ASSERT_EQ(stack.size(), stack.attribute_size());
stack.Push(cel::IntValue(2), AttributeTrail());
stack.Push(cel::IntValue(3), AttributeTrail());
ASSERT_EQ(stack.size(), stack.attribute_size());
stack.PopAndPush(cel::IntValue(4), AttributeTrail());
ASSERT_EQ(stack.size(), stack.attribute_size());
stack.PopAndPush(cel::IntValue(5));
ASSERT_EQ(stack.size(), stack.attribute_size());
stack.Pop(3);
ASSERT_EQ(stack.size(), stack.attribute_size());
}
TEST(EvaluatorStackTest, Clear) {
EvaluatorStack stack(10);
ASSERT_EQ(stack.size(), stack.attribute_size());
stack.Push(cel::IntValue(1));
stack.Push(cel::IntValue(2), AttributeTrail());
stack.Push(cel::IntValue(3), AttributeTrail());
ASSERT_EQ(stack.size(), 3);
stack.Clear();
ASSERT_EQ(stack.size(), 0);
ASSERT_TRUE(stack.empty());
}
} // namespace
} // namespace google::api::expr::runtime