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867c0d9645
Currently there is no iterator returned from this method, to have some similarity to associative containers of the STL. I also "added" one unit test for this method, which is basically just a copy of the HashMap::erase(const Key &) test with the required adaptions. svn-id: r55661
235 lines
6.0 KiB
C++
235 lines
6.0 KiB
C++
#include <cxxtest/TestSuite.h>
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#include "common/hashmap.h"
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#include "common/hash-str.h"
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class HashMapTestSuite : public CxxTest::TestSuite
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{
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public:
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void test_empty_clear() {
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Common::HashMap<int, int> container;
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TS_ASSERT(container.empty());
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container[0] = 17;
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container[1] = 33;
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TS_ASSERT(!container.empty());
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container.clear();
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TS_ASSERT(container.empty());
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Common::StringMap container2;
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TS_ASSERT(container2.empty());
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container2["foo"] = "bar";
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container2["quux"] = "blub";
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TS_ASSERT(!container2.empty());
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container2.clear();
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TS_ASSERT(container2.empty());
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}
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void test_contains() {
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Common::HashMap<int, int> container;
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container[0] = 17;
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container[1] = 33;
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TS_ASSERT(container.contains(0));
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TS_ASSERT(container.contains(1));
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TS_ASSERT(!container.contains(17));
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TS_ASSERT(!container.contains(-1));
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Common::StringMap container2;
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container2["foo"] = "bar";
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container2["quux"] = "blub";
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TS_ASSERT(container2.contains("foo"));
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TS_ASSERT(container2.contains("quux"));
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TS_ASSERT(!container2.contains("bar"));
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TS_ASSERT(!container2.contains("asdf"));
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}
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void test_add_remove() {
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Common::HashMap<int, int> container;
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container[0] = 17;
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container[1] = 33;
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container[2] = 45;
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container[3] = 12;
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container[4] = 96;
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TS_ASSERT(container.contains(1));
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container.erase(1);
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TS_ASSERT(!container.contains(1));
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container[1] = 42;
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TS_ASSERT(container.contains(1));
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container.erase(0);
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TS_ASSERT(!container.empty());
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container.erase(1);
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TS_ASSERT(!container.empty());
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container.erase(2);
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TS_ASSERT(!container.empty());
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container.erase(3);
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TS_ASSERT(!container.empty());
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container.erase(4);
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TS_ASSERT(container.empty());
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container[1] = 33;
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TS_ASSERT(container.contains(1));
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TS_ASSERT(!container.empty());
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container.erase(1);
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TS_ASSERT(container.empty());
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}
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void test_add_remove_iterator() {
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Common::HashMap<int, int> container;
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container[0] = 17;
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container[1] = 33;
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container[2] = 45;
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container[3] = 12;
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container[4] = 96;
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TS_ASSERT(container.contains(1));
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container.erase(container.find(1));
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TS_ASSERT(!container.contains(1));
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container[1] = 42;
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TS_ASSERT(container.contains(1));
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container.erase(container.find(0));
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TS_ASSERT(!container.empty());
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container.erase(container.find(1));
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TS_ASSERT(!container.empty());
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container.erase(container.find(2));
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TS_ASSERT(!container.empty());
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container.erase(container.find(3));
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TS_ASSERT(!container.empty());
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container.erase(container.find(4));
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TS_ASSERT(container.empty());
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container[1] = 33;
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TS_ASSERT(container.contains(1));
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TS_ASSERT(!container.empty());
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container.erase(container.find(1));
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TS_ASSERT(container.empty());
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}
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void test_lookup() {
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Common::HashMap<int, int> container;
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container[0] = 17;
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container[1] = -1;
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container[2] = 45;
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container[3] = 12;
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container[4] = 96;
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TS_ASSERT_EQUALS(container[0], 17);
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TS_ASSERT_EQUALS(container[1], -1);
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TS_ASSERT_EQUALS(container[2], 45);
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TS_ASSERT_EQUALS(container[3], 12);
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TS_ASSERT_EQUALS(container[4], 96);
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}
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void test_lookup_with_default() {
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Common::HashMap<int, int> container;
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container[0] = 17;
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container[1] = -1;
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container[2] = 45;
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container[3] = 12;
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container[4] = 96;
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// We take a const ref now to ensure that the map
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// is not modified by getVal.
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const Common::HashMap<int, int> &containerRef = container;
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TS_ASSERT_EQUALS(containerRef.getVal(0), 17);
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TS_ASSERT_EQUALS(containerRef.getVal(17), 0);
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TS_ASSERT_EQUALS(containerRef.getVal(0, -10), 17);
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TS_ASSERT_EQUALS(containerRef.getVal(17, -10), -10);
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}
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void test_iterator_begin_end() {
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Common::HashMap<int, int> container;
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// The container is initially empty ...
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TS_ASSERT_EQUALS(container.begin(), container.end());
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// ... then non-empty ...
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container[324] = 33;
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TS_ASSERT_DIFFERS(container.begin(), container.end());
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// ... and again empty.
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container.clear();
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TS_ASSERT_EQUALS(container.begin(), container.end());
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}
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void test_hash_map_copy() {
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Common::HashMap<int, int> map1, container2;
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map1[323] = 32;
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container2 = map1;
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TS_ASSERT_EQUALS(container2[323], 32);
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}
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void test_collision() {
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// NB: The usefulness of this example depends strongly on the
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// specific hashmap implementation.
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// It is constructed to insert multiple colliding elements.
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Common::HashMap<int, int> h;
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h[5] = 1;
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h[32+5] = 1;
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h[64+5] = 1;
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h[128+5] = 1;
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TS_ASSERT(h.contains(5));
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TS_ASSERT(h.contains(32+5));
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TS_ASSERT(h.contains(64+5));
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TS_ASSERT(h.contains(128+5));
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h.erase(32+5);
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TS_ASSERT(h.contains(5));
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TS_ASSERT(h.contains(64+5));
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TS_ASSERT(h.contains(128+5));
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h.erase(5);
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TS_ASSERT(h.contains(64+5));
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TS_ASSERT(h.contains(128+5));
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h[32+5] = 1;
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TS_ASSERT(h.contains(32+5));
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TS_ASSERT(h.contains(64+5));
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TS_ASSERT(h.contains(128+5));
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h[5] = 1;
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TS_ASSERT(h.contains(5));
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TS_ASSERT(h.contains(32+5));
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TS_ASSERT(h.contains(64+5));
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TS_ASSERT(h.contains(128+5));
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h.erase(5);
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TS_ASSERT(h.contains(32+5));
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TS_ASSERT(h.contains(64+5));
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TS_ASSERT(h.contains(128+5));
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h.erase(64+5);
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TS_ASSERT(h.contains(32+5));
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TS_ASSERT(h.contains(128+5));
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h.erase(128+5);
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TS_ASSERT(h.contains(32+5));
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h.erase(32+5);
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TS_ASSERT(h.empty());
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}
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void test_iterator() {
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Common::HashMap<int, int> container;
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container[0] = 17;
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container[1] = 33;
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container[2] = 45;
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container[3] = 12;
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container[4] = 96;
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container.erase(1);
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container[1] = 42;
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container.erase(0);
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container.erase(1);
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int found = 0;
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Common::HashMap<int, int>::iterator i;
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for (i = container.begin(); i != container.end(); ++i) {
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int key = i->_key;
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TS_ASSERT(key >= 0 && key <= 4);
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TS_ASSERT(!(found & (1 << key)));
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found |= 1 << key;
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}
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TS_ASSERT(found == 16+8+4);
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found = 0;
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Common::HashMap<int, int>::const_iterator j;
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for (j = container.begin(); j != container.end(); ++j) {
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int key = j->_key;
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TS_ASSERT(key >= 0 && key <= 4);
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TS_ASSERT(!(found & (1 << key)));
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found |= 1 << key;
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}
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TS_ASSERT(found == 16+8+4);
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}
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// TODO: Add test cases for iterators, find, ...
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};
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