Add more tests for mouse device

mouse_test.go

@@ -1,6 +1,9 @@
 package uinput
 
-import "testing"
+import (
+	"fmt"
+	"testing"
+)
 
 // This test confirms that all basic mouse events are working as expected.
 func TestBasicMouseMoves(t *testing.T) {
@@ -64,3 +67,177 @@ func TestBasicMouseMoves(t *testing.T) {
 		t.Fatalf("Failed to close device. Last error was: %s\n", err)
 	}
 }
+
+func TestMouseCreationFailsOnEmptyPath(t *testing.T) {
+	expected := "device path must not be empty"
+	defer func() {
+		if r := recover(); r != nil {
+			actual := r.(string)
+			if actual != expected {
+				t.Fatalf("Expected: %s\nActual: %s", expected, actual)
+			}
+		}
+	}()
+	CreateMouse("", []byte("MouseDevice"))
+	t.Fatalf("Empty path did not yield a panic")
+}
+
+func TestMouseCreationFailsOnNonExistentPathName(t *testing.T) {
+	path := "/some/bogus/path"
+	expected := "device path '" + path + "' does not exist"
+	defer func() {
+		if r := recover(); r != nil {
+			actual := r.(string)
+			if actual != expected {
+				t.Fatalf("Expected: %s\nActual: %s", expected, actual)
+			}
+		}
+	}()
+	CreateMouse(path, []byte("MouseDevice"))
+	t.Fatalf("Invalid path did not yield a panic")
+}
+
+func TestMouseCreationFailsIfNameIsTooLong(t *testing.T) {
+	name := "adsfdsferqewoirueworiuejdsfjdfa;ljoewrjeworiewuoruew;rj;kdlfjoeai;jfewoaifjef;das"
+	expected := fmt.Sprintf("device name %s is too long (maximum of %d characters allowed)", name, uinputMaxNameSize)
+	defer func() {
+		if r := recover(); r != nil {
+			actual := r.(string)
+			if actual != expected {
+				t.Fatalf("Expected: %s\nActual: %s", expected, actual)
+			}
+		}
+	}()
+	CreateMouse("/dev/uinput", []byte(name))
+	t.Fatalf("Invalid name did not yield a panic")
+}
+
+func TestMouseLeftClickFailsIfDeviceIsClosed(t *testing.T) {
+	relDev, err := CreateMouse("/dev/uinput", []byte("Test Basic Mouse"))
+	if err != nil {
+		t.Fatalf("Failed to create the virtual mouse. Last error was: %s\n", err)
+	}
+	relDev.Close()
+
+	err = relDev.LeftClick()
+	if err == nil {
+		t.Fatalf("Expected error due to closed device, but no error was returned.")
+	}
+}
+
+func TestMouseLeftPressFailsIfDeviceIsClosed(t *testing.T) {
+	relDev, err := CreateMouse("/dev/uinput", []byte("Test Basic Mouse"))
+	if err != nil {
+		t.Fatalf("Failed to create the virtual mouse. Last error was: %s\n", err)
+	}
+	relDev.Close()
+
+	err = relDev.LeftPress()
+	if err == nil {
+		t.Fatalf("Expected error due to closed device, but no error was returned.")
+	}
+}
+
+func TestMouseLeftReleaseFailsIfDeviceIsClosed(t *testing.T) {
+	relDev, err := CreateMouse("/dev/uinput", []byte("Test Basic Mouse"))
+	if err != nil {
+		t.Fatalf("Failed to create the virtual mouse. Last error was: %s\n", err)
+	}
+	relDev.Close()
+
+	err = relDev.LeftRelease()
+	if err == nil {
+		t.Fatalf("Expected error due to closed device, but no error was returned.")
+	}
+}
+
+func TestMouseRightClickFailsIfDeviceIsClosed(t *testing.T) {
+	relDev, err := CreateMouse("/dev/uinput", []byte("Test Basic Mouse"))
+	if err != nil {
+		t.Fatalf("Failed to create the virtual mouse. Last error was: %s\n", err)
+	}
+	relDev.Close()
+
+	err = relDev.RightClick()
+	if err == nil {
+		t.Fatalf("Expected error due to closed device, but no error was returned.")
+	}
+}
+
+func TestMouseRightPressFailsIfDeviceIsClosed(t *testing.T) {
+	relDev, err := CreateMouse("/dev/uinput", []byte("Test Basic Mouse"))
+	if err != nil {
+		t.Fatalf("Failed to create the virtual mouse. Last error was: %s\n", err)
+	}
+	relDev.Close()
+
+	err = relDev.RightPress()
+	if err == nil {
+		t.Fatalf("Expected error due to closed device, but no error was returned.")
+	}
+}
+
+func TestVMouse_RightReleaseFailsIfDeviceIsClosed(t *testing.T) {
+	relDev, err := CreateMouse("/dev/uinput", []byte("Test Basic Mouse"))
+	if err != nil {
+		t.Fatalf("Failed to create the virtual mouse. Last error was: %s\n", err)
+	}
+	relDev.Close()
+
+	err = relDev.RightRelease()
+	if err == nil {
+		t.Fatalf("Expected error due to closed device, but no error was returned.")
+	}
+}
+
+func TestMouseMoveUpFailsIfDeviceIsClosed(t *testing.T) {
+	relDev, err := CreateMouse("/dev/uinput", []byte("Test Basic Mouse"))
+	if err != nil {
+		t.Fatalf("Failed to create the virtual mouse. Last error was: %s\n", err)
+	}
+	relDev.Close()
+
+	err = relDev.MoveUp(1)
+	if err == nil {
+		t.Fatalf("Expected error due to closed device, but no error was returned.")
+	}
+}
+
+func TestMouseMoveDownFailsIfDeviceIsClosed(t *testing.T) {
+	relDev, err := CreateMouse("/dev/uinput", []byte("Test Basic Mouse"))
+	if err != nil {
+		t.Fatalf("Failed to create the virtual mouse. Last error was: %s\n", err)
+	}
+	relDev.Close()
+
+	err = relDev.MoveDown(1)
+	if err == nil {
+		t.Fatalf("Expected error due to closed device, but no error was returned.")
+	}
+}
+
+func TestMouseMoveLeftFailsIfDeviceIsClosed(t *testing.T) {
+	relDev, err := CreateMouse("/dev/uinput", []byte("Test Basic Mouse"))
+	if err != nil {
+		t.Fatalf("Failed to create the virtual mouse. Last error was: %s\n", err)
+	}
+	relDev.Close()
+
+	err = relDev.MoveLeft(1)
+	if err == nil {
+		t.Fatalf("Expected error due to closed device, but no error was returned.")
+	}
+}
+
+func TestMouseMoveRightFailsIfDeviceIsClosed(t *testing.T) {
+	relDev, err := CreateMouse("/dev/uinput", []byte("Test Basic Mouse"))
+	if err != nil {
+		t.Fatalf("Failed to create the virtual mouse. Last error was: %s\n", err)
+	}
+	relDev.Close()
+
+	err = relDev.MoveRight(1)
+	if err == nil {
+		t.Fatalf("Expected error due to closed device, but no error was returned.")
+	}
+}