diff --git a/cmake/unit_tests.cmake b/cmake/unit_tests.cmake
index 2c271b5..156ee61 100644
--- a/cmake/unit_tests.cmake
+++ b/cmake/unit_tests.cmake
@@ -51,6 +51,7 @@ add_executable(alltests
 	test/webfuse/tests/provider/operation/test_getattr.cc
 	test/webfuse/tests/provider/operation/test_lookup.cc
 	test/webfuse/tests/provider/operation/test_open.cc
+	test/webfuse/tests/provider/operation/test_read.cc
 	test/webfuse/tests/integration/test_integration.cc
 	test/webfuse/tests/integration/server.cc
 	test/webfuse/tests/integration/provider.cc
diff --git a/test/webfuse/mocks/mock_request.hpp b/test/webfuse/mocks/mock_request.hpp
index f286409..0582d6a 100644
--- a/test/webfuse/mocks/mock_request.hpp
+++ b/test/webfuse/mocks/mock_request.hpp
@@ -56,6 +56,32 @@ MATCHER_P(OpenMatcher, handle, "")
     return true;
 }
 
+MATCHER_P3(ReadResultMatcher, data, format, count, "") 
+{
+    json_t * format_holder = json_object_get(arg, "format");
+    if ((!json_is_string(format_holder)) || (0 != strcmp(format, json_string_value(format_holder))))
+    {
+        *result_listener << "invalid or missing format: " << json_string_value(format_holder);
+        return false;
+    }
+
+    json_t * count_holder = json_object_get(arg, "count");
+    if ((!json_is_integer(count_holder)) || (count != json_integer_value(count_holder)))
+    {
+        *result_listener << "invalid or missing count: " << json_integer_value(count_holder);
+        return false;
+    }
+
+    json_t * data_holder = json_object_get(arg, "data");
+    if ((!json_is_string(data_holder)) || (0 != strcmp(data, json_string_value(data_holder))))
+    {
+        *result_listener << "invalid or missing data: " << json_string_value(data_holder);
+        return false;
+    }
+
+    return true;
+}
+
 MATCHER_P(ReaddirMatcher, contained_elements , "") 
 {
     if (!json_is_array(arg))
diff --git a/test/webfuse/tests/provider/operation/test_read.cc b/test/webfuse/tests/provider/operation/test_read.cc
new file mode 100644
index 0000000..36bf14f
--- /dev/null
+++ b/test/webfuse/tests/provider/operation/test_read.cc
@@ -0,0 +1,173 @@
+#include "webfuse/provider/impl/operation/read.h"
+#include "webfuse/mocks/mock_request.hpp"
+#include "webfuse/mocks/mock_provider.hpp"
+#include "webfuse/mocks/fake_invokation_context.hpp"
+
+#include <gtest/gtest.h>
+#include <cstdlib>
+
+using ::webfuse_test::MockProvider;
+using ::webfuse_test::MockRequest;
+using ::webfuse_test::ReadResultMatcher;
+using ::webfuse_test::create_context;
+using ::testing::_;
+using ::testing::Invoke;
+using ::testing::StrEq;
+
+namespace
+{
+
+void free_request(wfp_request * request, ino_t, uint32_t, size_t ,size_t)
+{
+    free(request);
+}
+
+}
+
+TEST(wfp_impl_read, invoke_provider)
+{
+    ino_t inode = 42;
+    uint32_t handle = 5;
+    size_t offset = 2;
+    size_t length = 1;
+    MockProvider provider;
+    EXPECT_CALL(provider, read(_, inode, handle, offset, length)).Times(1)
+        .WillOnce(Invoke(free_request));
+
+    wfp_request request = {nullptr, nullptr, 0};
+    wfp_impl_invokation_context context = create_context(provider, &request);
+
+    json_t * params = json_array();
+    json_array_append_new(params, json_string("test.filesystem"));
+    json_array_append_new(params, json_integer(inode));
+    json_array_append_new(params, json_integer(handle));
+    json_array_append_new(params, json_integer(offset));
+    json_array_append_new(params, json_integer(length));
+
+    wfp_impl_read(&context, params, 42);
+    json_decref(params);
+}
+
+TEST(wfp_impl_read, fail_invalid_param_count)
+{
+    MockProvider provider;
+    EXPECT_CALL(provider, read(_, _, _, _, _)).Times(0);
+
+    wfp_request request = {nullptr, nullptr, 0};
+    wfp_impl_invokation_context context = create_context(provider, &request);
+
+    json_t * params = json_array();
+    json_array_append_new(params, json_string("test.filesystem"));
+    json_array_append_new(params, json_integer(1));
+    json_array_append_new(params, json_integer(2));
+    json_array_append_new(params, json_integer(3));
+    json_array_append_new(params, json_integer(4));
+    json_array_append_new(params, json_integer(5));
+
+    wfp_impl_read(&context, params, 42);
+    json_decref(params);
+}
+
+TEST(wfp_impl_read, fail_invalid_inode_type)
+{
+    MockProvider provider;
+    EXPECT_CALL(provider, read(_, _, _, _, _)).Times(0);
+
+    wfp_request request = {nullptr, nullptr, 0};
+    wfp_impl_invokation_context context = create_context(provider, &request);
+
+    json_t * params = json_array();
+    json_array_append_new(params, json_string("test.filesystem"));
+    json_array_append_new(params, json_string("42"));
+    json_array_append_new(params, json_integer(2));
+    json_array_append_new(params, json_integer(3));
+    json_array_append_new(params, json_integer(4));
+
+    wfp_impl_read(&context, params, 42);
+    json_decref(params);
+}
+
+TEST(wfp_impl_read, fail_invalid_handle_type)
+{
+    MockProvider provider;
+    EXPECT_CALL(provider, read(_, _, _, _, _)).Times(0);
+
+    wfp_request request = {nullptr, nullptr, 0};
+    wfp_impl_invokation_context context = create_context(provider, &request);
+
+    json_t * params = json_array();
+    json_array_append_new(params, json_string("test.filesystem"));
+    json_array_append_new(params, json_integer(1));
+    json_array_append_new(params, json_string("42"));
+    json_array_append_new(params, json_integer(3));
+    json_array_append_new(params, json_integer(4));
+
+    wfp_impl_read(&context, params, 42);
+    json_decref(params);
+}
+
+TEST(wfp_impl_read, fail_invalid_offset_type)
+{
+    MockProvider provider;
+    EXPECT_CALL(provider, read(_, _, _, _, _)).Times(0);
+
+    wfp_request request = {nullptr, nullptr, 0};
+    wfp_impl_invokation_context context = create_context(provider, &request);
+
+    json_t * params = json_array();
+    json_array_append_new(params, json_string("test.filesystem"));
+    json_array_append_new(params, json_integer(1));
+    json_array_append_new(params, json_integer(2));
+    json_array_append_new(params, json_string("42"));
+    json_array_append_new(params, json_integer(4));
+
+    wfp_impl_read(&context, params, 42);
+    json_decref(params);
+}
+
+TEST(wfp_impl_read, fail_invalid_length_type)
+{
+    MockProvider provider;
+    EXPECT_CALL(provider, read(_, _, _, _, _)).Times(0);
+
+    wfp_request request = {nullptr, nullptr, 0};
+    wfp_impl_invokation_context context = create_context(provider, &request);
+
+    json_t * params = json_array();
+    json_array_append_new(params, json_string("test.filesystem"));
+    json_array_append_new(params, json_integer(1));
+    json_array_append_new(params, json_integer(2));
+    json_array_append_new(params, json_integer(3));
+    json_array_append_new(params, json_string("42"));
+
+    wfp_impl_read(&context, params, 42);
+    json_decref(params);
+}
+
+TEST(wfp_impl_read, default_responds_error)
+{
+    MockRequest request;
+    auto * req = request.create_request(42);
+    EXPECT_CALL(request, respond_error(_,42)).Times(1);
+
+    wfp_impl_read_default(req, 0, 0, 1, 2, nullptr);
+}
+
+TEST(wfp_impl_read, respond)
+{
+    MockRequest request;
+    auto * req = request.create_request(42);
+    EXPECT_CALL(request, respond(ReadResultMatcher("d2Y=", "base64", 2), 42)).Times(1);
+
+    char const data[] = "wf";
+    wfp_impl_respond_read(req, data, 2);
+}
+
+TEST(wfp_impl_read, respond_empty)
+{
+    MockRequest request;
+    auto * req = request.create_request(42);
+    EXPECT_CALL(request, respond(ReadResultMatcher("", "identity", 0), 42)).Times(1);
+
+    wfp_impl_respond_read(req, nullptr, 0);
+}