[Test] Add tests for the EmulatedGamepad class

src/wx/config/CMakeLists.txt

@@ -73,6 +73,7 @@ if (BUILD_TESTING)
     add_executable(vbam-wx-config-tests
         bindings-test.cpp
         command-test.cpp
+        emulated-gamepad-test.cpp
         option-test.cpp
         strutils-test.cpp
         user-input-test.cpp

src/wx/config/emulated-gamepad-test.cpp

@@ -0,0 +1,147 @@
+#include "wx/config/emulated-gamepad.h"
+
+#include <gtest/gtest.h>
+#include <wx/string.h>
+#include <memory>
+#include "wx/config/bindings.h"
+#include "wx/config/command.h"
+#include "wx/config/user-input.h"
+
+#define KEYM_UP 1 << 6
+
+// Test fixture to set up the EmulatedGamepad with default bindings.
+class GamepadTest : public ::testing::Test {
+public:
+    GamepadTest() = default;
+    ~GamepadTest() override = default;
+
+protected:
+    void SetUp() override {
+        gamepad_ =
+            std::make_unique<config::EmulatedGamepad>(std::bind(&GamepadTest::bindings, this));
+    }
+
+    void TearDown() override { gamepad_.reset(); }
+
+    config::Bindings* bindings() { return &bindings_; }
+    config::EmulatedGamepad* gamepad() { return gamepad_.get(); }
+
+private:
+    config::Bindings bindings_;
+    std::unique_ptr<config::EmulatedGamepad> gamepad_;
+};
+
+TEST_F(GamepadTest, Basic) {
+    // No input should be pressed initially.
+    EXPECT_EQ(gamepad()->GetJoypad(0), 0);
+
+    const config::JoyInput up(config::JoyId(0), config::JoyControl::HatNorth, 0);
+
+    // Press up, the up key should be pressed.
+    EXPECT_TRUE(gamepad()->OnInputPressed(up));
+    EXPECT_EQ(gamepad()->GetJoypad(0), KEYM_UP);
+
+    // Release up, the up key should be released.
+    EXPECT_TRUE(gamepad()->OnInputReleased(up));
+    EXPECT_EQ(gamepad()->GetJoypad(0), 0);
+}
+
+// Tests that pressing multiple bindings at the same time keeps the keys pressed
+// until all corresponding bindings are released.
+TEST_F(GamepadTest, ManyBindingsPressed) {
+    const config::JoyInput up(config::JoyId(0), config::JoyControl::HatNorth, 0);
+    const config::KeyboardInput w('W');
+
+    // Press up, the up key should be pressed.
+    EXPECT_TRUE(gamepad()->OnInputPressed(up));
+    EXPECT_EQ(gamepad()->GetJoypad(0), KEYM_UP);
+
+    // Press W, the up key should still be pressed.
+    EXPECT_TRUE(gamepad()->OnInputPressed(w));
+    EXPECT_EQ(gamepad()->GetJoypad(0), KEYM_UP);
+
+    // Release up, the up key should still be pressed.
+    EXPECT_TRUE(gamepad()->OnInputReleased(up));
+    EXPECT_EQ(gamepad()->GetJoypad(0), KEYM_UP);
+
+    // Release w, the up key should be released.
+    EXPECT_TRUE(gamepad()->OnInputReleased(w));
+    EXPECT_EQ(gamepad()->GetJoypad(0), 0);
+}
+
+// Tests that pressing the same binding twice is a noop.
+TEST_F(GamepadTest, DoublePress) {
+    const config::JoyInput up(config::JoyId(0), config::JoyControl::HatNorth, 0);
+
+    // Press up, the up key should be pressed.
+    EXPECT_TRUE(gamepad()->OnInputPressed(up));
+    EXPECT_EQ(gamepad()->GetJoypad(0), KEYM_UP);
+
+    // Press up again, the up key should still be pressed.
+    EXPECT_TRUE(gamepad()->OnInputPressed(up));
+    EXPECT_EQ(gamepad()->GetJoypad(0), KEYM_UP);
+
+    // Release up, the up key should be released.
+    EXPECT_TRUE(gamepad()->OnInputReleased(up));
+    EXPECT_EQ(gamepad()->GetJoypad(0), 0);
+}
+
+// Tests that releasing the same biniding twice is a noop.
+TEST_F(GamepadTest, DoubleRelease) {
+    const config::JoyInput up(config::JoyId(0), config::JoyControl::HatNorth, 0);
+
+    // Press up, the up key should be pressed.
+    EXPECT_TRUE(gamepad()->OnInputPressed(up));
+    EXPECT_EQ(gamepad()->GetJoypad(0), KEYM_UP);
+
+    // Release up, the up key should be released.
+    EXPECT_TRUE(gamepad()->OnInputReleased(up));
+    EXPECT_EQ(gamepad()->GetJoypad(0), 0);
+
+    // Release up again, the up key should still be released.
+    EXPECT_TRUE(gamepad()->OnInputReleased(up));
+    EXPECT_EQ(gamepad()->GetJoypad(0), 0);
+}
+
+// Tests that pressing an unbound input is a noop.
+TEST_F(GamepadTest, UnassignedInput) {
+    const config::KeyboardInput f1(WXK_F1);
+    const config::JoyInput up(config::JoyId(0), config::JoyControl::HatNorth, 0);
+
+    // Press F1, nothing should happen.
+    EXPECT_FALSE(gamepad()->OnInputPressed(f1));
+    EXPECT_EQ(gamepad()->GetJoypad(0), 0);
+
+    // Press up, the up key should be pressed.
+    EXPECT_TRUE(gamepad()->OnInputPressed(up));
+    EXPECT_EQ(gamepad()->GetJoypad(0), KEYM_UP);
+
+    // Release F1, nothing should happen.
+    EXPECT_FALSE(gamepad()->OnInputReleased(f1));
+    EXPECT_EQ(gamepad()->GetJoypad(0), KEYM_UP);
+
+    // Release up, the up key should be released.
+    EXPECT_TRUE(gamepad()->OnInputReleased(up));
+    EXPECT_EQ(gamepad()->GetJoypad(0), 0);
+
+    // Release F1 again, nothing should happen.
+    EXPECT_FALSE(gamepad()->OnInputReleased(f1));
+    EXPECT_EQ(gamepad()->GetJoypad(0), 0);
+}
+
+// Tests that assigning an input to a game command properly triggers the game
+// command.
+TEST_F(GamepadTest, NonDefaultInput) {
+    const config::KeyboardInput f1(WXK_F1);
+
+    // Assign F1 to "Up".
+    bindings()->AssignInputToCommand(f1, config::GameCommand(config::GameJoy(0), config::GameKey::Up));
+
+    // Press F1, the up key should be pressed.
+    EXPECT_TRUE(gamepad()->OnInputPressed(f1));
+    EXPECT_EQ(gamepad()->GetJoypad(0), KEYM_UP);
+
+    // Release F1, the up key should be released.
+    EXPECT_TRUE(gamepad()->OnInputReleased(f1));
+    EXPECT_EQ(gamepad()->GetJoypad(0), 0);
+}