diff --git a/test/handle.cpp b/test/handle.cpp
new file mode 100644
index 0000000..08a66db
--- /dev/null
+++ b/test/handle.cpp
@@ -0,0 +1,227 @@
+#include <cerrno>
+#include <cstdint>
+#include <gmock/gmock.h>
+#include <gpioplus/handle.hpp>
+#include <gpioplus/test/sys.hpp>
+#include <gtest/gtest.h>
+#include <linux/gpio.h>
+#include <memory>
+#include <stdexcept>
+#include <string>
+#include <system_error>
+#include <vector>
+
+namespace gpioplus
+{
+namespace
+{
+
+using testing::DoAll;
+using testing::Return;
+using testing::SaveArgPointee;
+using testing::SetArgPointee;
+
+TEST(HandleFlags, HandleFlagsFromLineFlags)
+{
+    LineFlags line_flags(GPIOLINE_FLAG_KERNEL | GPIOLINE_FLAG_OPEN_DRAIN);
+    HandleFlags handle_flags(line_flags);
+    EXPECT_FALSE(handle_flags.output);
+    EXPECT_FALSE(handle_flags.active_low);
+    EXPECT_TRUE(handle_flags.open_drain);
+    EXPECT_FALSE(handle_flags.open_source);
+}
+
+TEST(HandleFlags, HandleFlagsToInt)
+{
+    HandleFlags handle_flags;
+    handle_flags.output = false;
+    handle_flags.active_low = true;
+    handle_flags.open_drain = false;
+    handle_flags.open_source = false;
+    EXPECT_EQ(GPIOHANDLE_REQUEST_INPUT | GPIOHANDLE_REQUEST_ACTIVE_LOW,
+              handle_flags.toInt());
+
+    handle_flags.output = true;
+    handle_flags.active_low = false;
+    handle_flags.open_drain = true;
+    handle_flags.open_source = true;
+    EXPECT_EQ(GPIOHANDLE_REQUEST_OUTPUT | GPIOHANDLE_REQUEST_OPEN_DRAIN |
+                  GPIOHANDLE_REQUEST_OPEN_SOURCE,
+              handle_flags.toInt());
+}
+
+class HandleTest : public testing::Test
+{
+  protected:
+    const int chip_fd = 1234;
+    const int handle_fd = 2345;
+    testing::StrictMock<test::SysMock> mock;
+    std::unique_ptr<Chip> chip;
+
+    void SetUp()
+    {
+        EXPECT_CALL(mock, open(testing::_, testing::_))
+            .WillOnce(Return(chip_fd));
+        chip = std::make_unique<Chip>(0, &mock);
+    }
+
+    void TearDown()
+    {
+        EXPECT_CALL(mock, close(chip_fd)).WillOnce(Return(0));
+        chip.reset();
+    }
+};
+
+TEST_F(HandleTest, ConstructSuccess)
+{
+    const std::string label{"test"};
+    std::vector<Handle::Line> lines;
+    for (uint32_t i = 0; i < 7; ++i)
+    {
+        lines.push_back({i, 1});
+    }
+
+    struct gpiohandle_request req, ret;
+    ret.fd = handle_fd;
+    EXPECT_CALL(mock, gpio_get_linehandle(chip_fd, testing::_))
+        .WillOnce(
+            DoAll(SaveArgPointee<1>(&req), SetArgPointee<1>(ret), Return(0)));
+    Handle handle(*chip, lines,
+                  HandleFlags(LineFlags(GPIOLINE_FLAG_ACTIVE_LOW)),
+                  label.c_str());
+
+    EXPECT_EQ(handle_fd, *handle.getFd());
+    EXPECT_EQ(GPIOHANDLE_REQUEST_INPUT | GPIOHANDLE_REQUEST_ACTIVE_LOW,
+              req.flags);
+    EXPECT_EQ(label, req.consumer_label);
+    EXPECT_EQ(lines.size(), req.lines);
+    for (uint32_t i = 0; i < lines.size(); ++i)
+    {
+        EXPECT_EQ(i, req.lineoffsets[i]);
+        EXPECT_EQ(1, req.default_values[i]);
+    }
+
+    EXPECT_CALL(mock, close(handle_fd)).WillOnce(Return(0));
+}
+
+TEST_F(HandleTest, ConstructTooMany)
+{
+    const std::vector<Handle::Line> lines(GPIOHANDLES_MAX + 1);
+    EXPECT_THROW(Handle(*chip, lines, HandleFlags(), "too_many"),
+                 std::runtime_error);
+}
+
+TEST_F(HandleTest, ConstructError)
+{
+    const std::string label{"error"};
+    std::vector<Handle::Line> lines;
+    for (uint32_t i = 0; i < 5; ++i)
+    {
+        lines.push_back({i, 0});
+    }
+
+    struct gpiohandle_request req;
+    EXPECT_CALL(mock, gpio_get_linehandle(chip_fd, testing::_))
+        .WillOnce(DoAll(SaveArgPointee<1>(&req), Return(-EINVAL)));
+    EXPECT_THROW(Handle(*chip, lines,
+                        HandleFlags(LineFlags(GPIOLINE_FLAG_IS_OUT)),
+                        label.c_str()),
+                 std::runtime_error);
+
+    EXPECT_EQ(GPIOHANDLE_REQUEST_OUTPUT, req.flags);
+    EXPECT_EQ(label, req.consumer_label);
+    EXPECT_EQ(lines.size(), req.lines);
+    for (uint32_t i = 0; i < lines.size(); ++i)
+    {
+        EXPECT_EQ(i, req.lineoffsets[i]);
+        EXPECT_EQ(0, req.default_values[i]);
+    }
+}
+
+class HandleMethodTest : public HandleTest
+{
+  protected:
+    std::unique_ptr<Handle> handle;
+    const std::vector<Handle::Line> lines{{1, 1}, {4, 0}};
+
+    void SetUp()
+    {
+        HandleTest::SetUp();
+        struct gpiohandle_request ret;
+        ret.fd = handle_fd;
+        EXPECT_CALL(mock, gpio_get_linehandle(chip_fd, testing::_))
+            .WillOnce(DoAll(SetArgPointee<1>(ret), Return(0)));
+        handle = std::make_unique<Handle>(
+            *chip, lines, HandleFlags(LineFlags(GPIOLINE_FLAG_IS_OUT)),
+            "method");
+    }
+
+    void TearDown()
+    {
+        EXPECT_CALL(mock, close(handle_fd)).WillOnce(Return(0));
+        handle.reset();
+        HandleTest::TearDown();
+    }
+};
+
+TEST_F(HandleMethodTest, GetValuesRet)
+{
+    const std::vector<uint8_t> expected{0, 0};
+    struct gpiohandle_data ret;
+    ret.values[0] = 0;
+    ret.values[1] = 0;
+
+    EXPECT_CALL(mock, gpiohandle_get_line_values(handle_fd, testing::_))
+        .WillOnce(DoAll(SetArgPointee<1>(ret), Return(0)));
+    EXPECT_EQ(expected, handle->getValues());
+}
+
+TEST_F(HandleMethodTest, GetValuesSuccess)
+{
+    const std::vector<uint8_t> expected{1, 1};
+    struct gpiohandle_data ret;
+    ret.values[0] = 1;
+    ret.values[1] = 1;
+
+    EXPECT_CALL(mock, gpiohandle_get_line_values(handle_fd, testing::_))
+        .WillOnce(DoAll(SetArgPointee<1>(ret), Return(0)));
+    std::vector<uint8_t> output;
+    handle->getValues(output);
+    EXPECT_EQ(expected, output);
+}
+
+TEST_F(HandleMethodTest, GetValuesFailure)
+{
+    EXPECT_CALL(mock, gpiohandle_get_line_values(handle_fd, testing::_))
+        .WillOnce(Return(-EINVAL));
+    EXPECT_THROW(handle->getValues(), std::system_error);
+}
+
+TEST_F(HandleMethodTest, SetValuesSuccess)
+{
+    struct gpiohandle_data req;
+    EXPECT_CALL(mock, gpiohandle_set_line_values(handle_fd, testing::_))
+        .WillOnce(DoAll(SaveArgPointee<1>(&req), Return(0)));
+    handle->setValues({0, 1});
+    EXPECT_EQ(0, req.values[0]);
+    EXPECT_EQ(1, req.values[1]);
+}
+
+TEST_F(HandleMethodTest, SetValuesInvalid)
+{
+    EXPECT_THROW(handle->setValues({1}), std::runtime_error);
+    EXPECT_THROW(handle->setValues({1, 0, 1}), std::runtime_error);
+}
+
+TEST_F(HandleMethodTest, SetValuesFailure)
+{
+    struct gpiohandle_data req;
+    EXPECT_CALL(mock, gpiohandle_set_line_values(handle_fd, testing::_))
+        .WillOnce(DoAll(SaveArgPointee<1>(&req), Return(-EINVAL)));
+    EXPECT_THROW(handle->setValues({1, 1}), std::system_error);
+    EXPECT_EQ(1, req.values[0]);
+    EXPECT_EQ(1, req.values[1]);
+}
+
+} // namespace
+} // namespace gpioplus