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https://github.com/greg7mdp/parallel-hashmap.git
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greg
63 lines
2.0 KiB
C++
63 lines
2.0 KiB
C++
#ifndef THIS_HASH_MAP
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#define THIS_HASH_MAP parallel_flat_hash_map
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#define THIS_TEST_NAME ParallelFlatHashMap
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#endif
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#include "flat_hash_map_test.cc"
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namespace phmap {
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namespace priv {
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namespace {
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TEST(THIS_TEST_NAME, ThreadSafeContains) {
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// We can't test mutable keys, or non-copyable keys with ThisMap.
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// Test that the nodes have the proper API.
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ThisMap<int, int> m = { {1, 7}, {2, 9} };
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const ThisMap<int, int>& const_m(m);
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auto val = 0;
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auto get_value = [&val](const int& v) { val = v; };
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EXPECT_TRUE(const_m.if_contains(2, get_value));
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EXPECT_EQ(val, 9);
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EXPECT_FALSE(m.if_contains(3, get_value));
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auto set_value = [](int& v) { v = 11; };
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EXPECT_TRUE(m.modify_if(2, set_value));
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EXPECT_EQ(m[2], 11);
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EXPECT_FALSE(m.modify_if(3, set_value));
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// overwrite an existing value
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m.try_emplace_l(2, [](int& v) { v = 5; });
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EXPECT_EQ(m[2], 5);
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// insert a value that is not already present. Will be default initialised to 0 and lambda not called
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m.try_emplace_l(3, [](int& v) { assert(v == 0); /* should not be called when value constructed */ v = 6; });
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EXPECT_EQ(m[3], 0);
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// insert a value that is not already present, provide argument to value-construct it
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m.try_emplace_l(4, [](int& ) { assert(0); /* should not be called when value constructed */ }, 999);
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EXPECT_EQ(m[4], 999);
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#if PHMAP_HAVE_CC17 // generic lambda
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// insert a value that is not already present.
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m.lazy_emplace_l(5,
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[](int& v) { assert(0); /* should not be called when value constructed */ v = 6; },
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[](const auto& ctor) { ctor(5, 13); });
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EXPECT_EQ(m[5], 13);
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// change a value that is present
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m.lazy_emplace_l(5,
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[](int& v) { v = 6; },
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[](const auto& ctor) { assert(0); /* should not be called when value exists */ctor(5, 13); });
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EXPECT_EQ(m[5], 6);
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#endif
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}
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} // namespace
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} // namespace priv
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} // namespace phmap
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