58 lines
1.2 KiB
C++
58 lines
1.2 KiB
C++
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#include <gtest/gtest.h>
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#include <vanetza/common/hook.hpp>
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#include <string>
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#include <vector>
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using namespace vanetza;
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TEST(Hook, variants) {
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Hook<int> hook_int;
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hook_int(28); // rvalue call
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int x = 29;
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hook_int(x); // lvalue (exact type)
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int& y = x;
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hook_int(y); // lvalue (compatible type)
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Hook<double, float> hook_fp;
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hook_fp(23.0, -42.0f);
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Hook<const std::string&, std::vector<int>> hook_objects;
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hook_objects("foo", {3, 2});
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Hook<std::string&&> hook_rvalue_ref;
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hook_rvalue_ref("bar");
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}
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TEST(Hook, invocation) {
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Hook<double, float> hook;
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double d = 3.0;
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float f = 5.3f;
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// empty hook does nothing
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hook(0.0, 1.0f);
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EXPECT_EQ(3.0, d);
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EXPECT_EQ(5.3f, f);
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// set hook and test it's magic
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hook = [&d, &f](double _d, float _f) { d = _d; f = _f; };
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hook(23.1, -384.34f);
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EXPECT_EQ(23.1, d);
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EXPECT_EQ(-384.34f, f);
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// reset hook and it should do nothing again
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hook.reset();
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hook(0.0, 3.33f);
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EXPECT_EQ(23.1, d);
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EXPECT_EQ(-384.34f, f);
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}
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TEST(HookRegistry, registration) {
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Hook<double> hook;
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HookRegistry<double> registry(hook);
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double d = 42.0;
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registry = [&d](double _d) { d = _d; };
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hook(21.0);
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EXPECT_EQ(21.0, d);
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}
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