Add subscriptions (to replace notifiers).

[stg.git] / tests / test_subscriptions.cpp

diff --git a/tests/test_subscriptions.cpp b/tests/test_subscriptions.cpp
new file mode 100644 (file)
index 0000000..ebc3c92
--- /dev/null
+++ b/tests/test_subscriptions.cpp
@@ -0,0 +1,223 @@
+#define BOOST_TEST_MODULE STGSubscriptions
+
+#include "stg/subscriptions.h"
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wold-style-cast"
+#pragma GCC diagnostic ignored "-Wunused-parameter"
+#pragma GCC diagnostic ignored "-Wsign-compare"
+#pragma GCC diagnostic ignored "-Wparentheses"
+#include <boost/test/unit_test.hpp>
+#pragma GCC diagnostic pop
+
+namespace
+{
+
+struct Receiver
+{
+    Receiver() noexcept
+        : countR0(0),
+          countR1(0),
+          valueR1(0),
+          countR2(0),
+          value1R2(0)
+    {}
+
+    void r0() { ++countR0; }
+    void r1(uint8_t v) { ++countR1; valueR1 = v; }
+    void r2(uint8_t v1, const std::string& v2) { ++countR2; value1R2 = v1; value2R2 = v2; }
+
+    size_t countR0;
+    size_t countR1;
+    uint8_t valueR1;
+    size_t countR2;
+    uint8_t value1R2;
+    std::string value2R2;
+};
+
+}
+
+BOOST_AUTO_TEST_SUITE(Subscriptions)
+
+BOOST_AUTO_TEST_CASE(Construction)
+{
+    STG::Subscriptions<> nullary;
+    BOOST_CHECK(nullary.empty());
+    BOOST_CHECK_EQUAL(nullary.size(), 0);
+
+    STG::Subscriptions<uint8_t> unary;
+    BOOST_CHECK(unary.empty());
+    BOOST_CHECK_EQUAL(unary.size(), 0);
+
+    STG::Subscriptions<uint8_t, std::string> binary;
+    BOOST_CHECK(binary.empty());
+    BOOST_CHECK_EQUAL(binary.size(), 0);
+}
+
+BOOST_AUTO_TEST_CASE(AddingAndRemoving)
+{
+    Receiver r;
+    STG::Subscriptions<> nullary;
+    {
+        auto c1 = nullary.add(r, &Receiver::r0);
+        auto c2 = nullary.add([&r](){ r.r0(); });
+
+        BOOST_CHECK(!nullary.empty());
+        BOOST_CHECK_EQUAL(nullary.size(), 2);
+
+        c1.disconnect();
+
+        BOOST_CHECK(!nullary.empty());
+        BOOST_CHECK_EQUAL(nullary.size(), 1);
+    }
+    BOOST_CHECK(nullary.empty());
+    BOOST_CHECK_EQUAL(nullary.size(), 0);
+
+    STG::Subscriptions<uint8_t> unary;
+    {
+        auto c1 = unary.add(r, &Receiver::r1);
+        auto c2 = unary.add([&r](const auto& v){ r.r1(v); });
+
+        BOOST_CHECK(!unary.empty());
+        BOOST_CHECK_EQUAL(unary.size(), 2);
+
+        c1.disconnect();
+
+        BOOST_CHECK(!unary.empty());
+        BOOST_CHECK_EQUAL(unary.size(), 1);
+    }
+    BOOST_CHECK(unary.empty());
+    BOOST_CHECK_EQUAL(unary.size(), 0);
+
+    STG::Subscriptions<uint8_t, std::string> binary;
+    {
+        auto c1 = binary.add(r, &Receiver::r2);
+        auto c2 = binary.add([&r](const auto& v1, const auto& v2){ r.r2(v1, v2); });
+
+        BOOST_CHECK(!binary.empty());
+        BOOST_CHECK_EQUAL(binary.size(), 2);
+
+        c1.disconnect();
+
+        BOOST_CHECK(!binary.empty());
+        BOOST_CHECK_EQUAL(binary.size(), 1);
+    }
+    BOOST_CHECK(binary.empty());
+    BOOST_CHECK_EQUAL(binary.size(), 0);
+}
+
+BOOST_AUTO_TEST_CASE(Notification)
+{
+    Receiver r;
+
+    BOOST_CHECK_EQUAL(r.countR0, 0);
+    BOOST_CHECK_EQUAL(r.countR1, 0);
+    BOOST_CHECK_EQUAL(r.valueR1, 0);
+    BOOST_CHECK_EQUAL(r.countR2, 0);
+    BOOST_CHECK_EQUAL(r.value1R2, 0);
+    BOOST_CHECK_EQUAL(r.value2R2, "");
+
+    STG::Subscriptions<> nullary;
+    {
+        auto c1 = nullary.add(r, &Receiver::r0);
+        auto c2 = nullary.add([&r](){ r.r0(); });
+
+        nullary.notify();
+
+        BOOST_CHECK_EQUAL(r.countR0, 2);
+        BOOST_CHECK_EQUAL(r.countR1, 0);
+        BOOST_CHECK_EQUAL(r.valueR1, 0);
+        BOOST_CHECK_EQUAL(r.countR2, 0);
+        BOOST_CHECK_EQUAL(r.value1R2, 0);
+        BOOST_CHECK_EQUAL(r.value2R2, "");
+
+        c1.disconnect();
+        nullary.notify();
+
+        BOOST_CHECK_EQUAL(r.countR0, 3);
+        BOOST_CHECK_EQUAL(r.countR1, 0);
+        BOOST_CHECK_EQUAL(r.valueR1, 0);
+        BOOST_CHECK_EQUAL(r.countR2, 0);
+        BOOST_CHECK_EQUAL(r.value1R2, 0);
+        BOOST_CHECK_EQUAL(r.value2R2, "");
+    }
+
+    nullary.notify();
+
+    BOOST_CHECK_EQUAL(r.countR0, 3);
+    BOOST_CHECK_EQUAL(r.countR1, 0);
+    BOOST_CHECK_EQUAL(r.valueR1, 0);
+    BOOST_CHECK_EQUAL(r.countR2, 0);
+    BOOST_CHECK_EQUAL(r.value1R2, 0);
+    BOOST_CHECK_EQUAL(r.value2R2, "");
+
+    STG::Subscriptions<uint8_t> unary;
+    {
+        auto c1 = unary.add(r, &Receiver::r1);
+        auto c2 = unary.add([&r](const auto& v){ r.r1(v); });
+
+        unary.notify(42);
+
+        BOOST_CHECK_EQUAL(r.countR0, 3);
+        BOOST_CHECK_EQUAL(r.countR1, 2);
+        BOOST_CHECK_EQUAL(r.valueR1, 42);
+        BOOST_CHECK_EQUAL(r.countR2, 0);
+        BOOST_CHECK_EQUAL(r.value1R2, 0);
+        BOOST_CHECK_EQUAL(r.value2R2, "");
+
+        c1.disconnect();
+        unary.notify(13);
+
+        BOOST_CHECK_EQUAL(r.countR0, 3);
+        BOOST_CHECK_EQUAL(r.countR1, 3);
+        BOOST_CHECK_EQUAL(r.valueR1, 13);
+        BOOST_CHECK_EQUAL(r.countR2, 0);
+        BOOST_CHECK_EQUAL(r.value1R2, 0);
+        BOOST_CHECK_EQUAL(r.value2R2, "");
+    }
+
+    unary.notify(7);
+
+    BOOST_CHECK_EQUAL(r.countR0, 3);
+    BOOST_CHECK_EQUAL(r.countR1, 3);
+    BOOST_CHECK_EQUAL(r.valueR1, 13);
+    BOOST_CHECK_EQUAL(r.countR2, 0);
+    BOOST_CHECK_EQUAL(r.value1R2, 0);
+    BOOST_CHECK_EQUAL(r.value2R2, "");
+
+    STG::Subscriptions<uint8_t, std::string> binary;
+    {
+        auto c1 = binary.add(r, &Receiver::r2);
+        auto c2 = binary.add([&r](const auto& v1, const auto& v2){ r.r2(v1, v2); });
+
+        binary.notify(42, "Douglas");
+
+        BOOST_CHECK_EQUAL(r.countR0, 3);
+        BOOST_CHECK_EQUAL(r.countR1, 3);
+        BOOST_CHECK_EQUAL(r.valueR1, 13);
+        BOOST_CHECK_EQUAL(r.countR2, 2);
+        BOOST_CHECK_EQUAL(r.value1R2, 42);
+        BOOST_CHECK_EQUAL(r.value2R2, "Douglas");
+
+        c1.disconnect();
+        binary.notify(21, "Adams");
+
+        BOOST_CHECK_EQUAL(r.countR0, 3);
+        BOOST_CHECK_EQUAL(r.countR1, 3);
+        BOOST_CHECK_EQUAL(r.valueR1, 13);
+        BOOST_CHECK_EQUAL(r.countR2, 3);
+        BOOST_CHECK_EQUAL(r.value1R2, 21);
+        BOOST_CHECK_EQUAL(r.value2R2, "Adams");
+    }
+
+    binary.notify(13, "Devil's Dozen");
+
+    BOOST_CHECK_EQUAL(r.countR0, 3);
+    BOOST_CHECK_EQUAL(r.countR1, 3);
+    BOOST_CHECK_EQUAL(r.valueR1, 13);
+    BOOST_CHECK_EQUAL(r.countR2, 3);
+    BOOST_CHECK_EQUAL(r.value1R2, 21);
+    BOOST_CHECK_EQUAL(r.value2R2, "Adams");
+}
+
+BOOST_AUTO_TEST_SUITE_END()