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#include <cxxtest/TestSuite.h>
#include "common/stack.h"
class StackTestSuite : public CxxTest::TestSuite {
public:
void test_empty_clear() {
Common::Stack<int> stack;
TS_ASSERT(stack.empty());
stack.push(1);
stack.push(2);
TS_ASSERT(!stack.empty());
stack.clear();
TS_ASSERT(stack.empty());
}
void test_size() {
typedef Common::Stack<int> Stack;
Stack stack;
TS_ASSERT_EQUALS(stack.size(), (Stack::size_type)0);
stack.push(5);
TS_ASSERT_EQUALS(stack.size(), (Stack::size_type)1);
stack.push(9);
stack.push(0);
TS_ASSERT_EQUALS(stack.size(), (Stack::size_type)3);
stack.pop();
TS_ASSERT_EQUALS(stack.size(), (Stack::size_type)2);
}
void test_top_pop() {
Common::Stack<int> stack;
stack.push( 42);
stack.push(-23);
TS_ASSERT_EQUALS(stack[0], 42);
TS_ASSERT_EQUALS(stack.top(), -23);
stack[0] = -23;
stack.top() = 42;
TS_ASSERT_EQUALS(stack[0], -23);
TS_ASSERT_EQUALS(stack.top(), 42);
stack.pop();
TS_ASSERT_EQUALS(stack[0], -23);
}
void test_assign() {
Common::Stack<int> q1, q2;
for (int i = 0; i <= 4; ++i) {
q1.push(4-i);
q2.push(i);
}
Common::Stack<int> q3(q1);
for (int i = 0; i < 5; ++i) {
TS_ASSERT_EQUALS(q3.top(), i);
q3.pop();
}
TS_ASSERT(q3.empty());
q3 = q2;
for (int i = 4; i >= 0; --i) {
TS_ASSERT_EQUALS(q3.top(), i);
q3.pop();
}
TS_ASSERT(q3.empty());
TS_ASSERT(!q1.empty());
TS_ASSERT(!q2.empty());
}
};
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