diff --git a/Makefile b/Makefile
index 647bcce01..fd73a3389 100644
--- a/Makefile
+++ b/Makefile
@@ -30,7 +30,6 @@ AMALGAMATED_FILE=single_include/nlohmann/json.hpp
 all:
 	@echo "amalgamate - amalgamate file single_include/nlohmann/json.hpp from the include/nlohmann sources"
 	@echo "ChangeLog.md - generate ChangeLog file"
-	@echo "check - compile and execute test suite"
 	@echo "check-amalgamation - check whether sources have been amalgamated"
 	@echo "clean - remove built files"
 	@echo "coverage - create coverage information with lcov"
@@ -44,26 +43,12 @@ all:
 	@echo "fuzz_testing_cbor - prepare fuzz testing of the CBOR parser"
 	@echo "fuzz_testing_msgpack - prepare fuzz testing of the MessagePack parser"
 	@echo "fuzz_testing_ubjson - prepare fuzz testing of the UBJSON parser"
-	@echo "json_unit - create single-file test executable"
 	@echo "pedantic_clang - run Clang with maximal warning flags"
 	@echo "pedantic_gcc - run GCC with maximal warning flags"
 	@echo "pretty - beautify code with Artistic Style"
 	@echo "run_benchmarks - build and run benchmarks"
 
 
-##########################################################################
-# unit tests
-##########################################################################
-
-# build unit tests
-json_unit:
-	@$(MAKE) json_unit -C test
-
-# run unit tests
-check:
-	$(MAKE) check -C test
-
-
 ##########################################################################
 # coverage
 ##########################################################################
@@ -642,7 +627,6 @@ clean:
 	rm -fr cmake-3.1.0-Darwin64.tar.gz cmake-3.1.0-Darwin64
 	rm -fr build_coverage build_benchmarks fuzz-testing clang_analyze_build pvs_studio_build infer_build clang_sanitize_build cmake_build
 	$(MAKE) clean -Cdoc
-	$(MAKE) clean -Ctest
 
 ##########################################################################
 # Thirdparty code
diff --git a/test/Makefile b/test/Makefile
index bcf8de7de..2d08a8f7b 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -1,98 +1,13 @@
-##########################################################################
-# unit tests
-##########################################################################
+##############################################################################
+# OSS-Fuzz
+##############################################################################
+
+# The following targets realize the integration to OSS-Fuzz.
+# See <https://github.com/google/oss-fuzz/blob/master/projects/json/build.sh> for more information.
 
 # additional flags
-CXXFLAGS += -std=c++11 -Wall -Wextra -pedantic -Wcast-align -Wcast-qual -Wno-ctor-dtor-privacy -Wdisabled-optimization -Wformat=2 -Winit-self -Wmissing-declarations -Wmissing-include-dirs -Wold-style-cast -Woverloaded-virtual -Wredundant-decls -Wshadow -Wsign-conversion -Wsign-promo -Wstrict-overflow=5 -Wswitch -Wundef -Wno-unused -Wnon-virtual-dtor -Wreorder -Wdeprecated -Wno-float-equal
-CPPFLAGS += -I ../single_include -I . -I thirdparty/doctest -I thirdparty/fifo_map -DDOCTEST_CONFIG_SUPER_FAST_ASSERTS
-
-SOURCES = src/unit.cpp \
-          src/unit-algorithms.cpp \
-          src/unit-allocator.cpp \
-          src/unit-alt-string.cpp \
-          src/unit-bson.cpp \
-          src/unit-capacity.cpp \
-          src/unit-cbor.cpp \
-          src/unit-class_const_iterator.cpp \
-          src/unit-class_iterator.cpp \
-          src/unit-class_lexer.cpp \
-          src/unit-class_parser.cpp \
-          src/unit-comparison.cpp \
-          src/unit-concepts.cpp \
-          src/unit-constructor1.cpp \
-          src/unit-constructor2.cpp \
-          src/unit-convenience.cpp \
-          src/unit-conversions.cpp \
-          src/unit-deserialization.cpp \
-          src/unit-element_access1.cpp \
-          src/unit-element_access2.cpp \
-          src/unit-inspection.cpp \
-          src/unit-items.cpp \
-          src/unit-iterators1.cpp \
-          src/unit-iterators2.cpp \
-          src/unit-merge_patch.cpp \
-          src/unit-json_patch.cpp \
-          src/unit-json_pointer.cpp \
-          src/unit-meta.cpp \
-          src/unit-modifiers.cpp \
-          src/unit-msgpack.cpp \
-          src/unit-pointer_access.cpp \
-          src/unit-readme.cpp \
-          src/unit-reference_access.cpp \
-          src/unit-regression.cpp \
-          src/unit-serialization.cpp \
-          src/unit-testsuites.cpp \
-          src/unit-ubjson.cpp \
-          src/unit-unicode.cpp \
-          src/unit-user_defined_input.cpp \
-          src/unit-wstring.cpp
-
-OBJECTS = $(SOURCES:.cpp=.o)
-
-TESTCASES = $(patsubst src/unit-%.cpp,test-%,$(wildcard src/unit-*.cpp))
-
-##############################################################################
-# main rules
-##############################################################################
-
-all: $(TESTCASES)
-
-clean:
-	rm -fr json_unit $(OBJECTS) $(SOURCES:.cpp=.gcno) $(SOURCES:.cpp=.gcda) $(TESTCASES) $(FUZZERS) test_data.hpp
-
-test_data.hpp:
-	@echo "#define TEST_DATA_DIRECTORY" > $@
-
-##############################################################################
-# single test file
-##############################################################################
-
-json_unit: $(OBJECTS) ../single_include/nlohmann/json.hpp thirdparty/doctest/doctest.h
-	@echo "[CXXLD] $@"
-	@$(CXX) $(CXXFLAGS) $(LDFLAGS) $(OBJECTS) -o $@
-
-%.o: %.cpp ../single_include/nlohmann/json.hpp thirdparty/doctest/doctest.h test_data.hpp
-	@echo "[CXX]   $@"
-	@$(CXX) $(CXXFLAGS) $(CPPFLAGS) -c $< -o $@
-
-
-##############################################################################
-# individual test cases
-##############################################################################
-
-test-%: src/unit-%.o src/unit.o ../single_include/nlohmann/json.hpp thirdparty/doctest/doctest.h test_data.hpp
-	@echo "[CXXLD] $@"
-	@$(CXX) $(CXXFLAGS) $(CPPFLAGS) $(LDFLAGS) $< src/unit.o -o $@
-
-TEST_PATTERN ?= "*"
-TEST_PREFIX = ""
-check: $(OBJECTS) $(TESTCASES)
-	@cd .. ; for testcase in $(TESTCASES); do echo "Executing $$testcase..."; $(TEST_PREFIX)test/$$testcase $(TEST_PATTERN) || exit 1; done
-
-
-##############################################################################
-# fuzzer
-##############################################################################
+CXXFLAGS += -std=c++11
+CPPFLAGS += -I ../single_include
 
 FUZZER_ENGINE = src/fuzzer-driver_afl.cpp
 FUZZERS = parse_afl_fuzzer parse_bson_fuzzer parse_cbor_fuzzer parse_msgpack_fuzzer parse_ubjson_fuzzer