Add basic tests for the lz4 integration

.travis.yml

@@ -22,6 +22,8 @@ matrix:
     - env: Cmd='make ppcinstall && make ppcfuzz'
     - env: Cmd='make ppcinstall && make ppc64fuzz'
 
+    - env: Cmd='make lz4install && make -C tests test-lz4'
+
 git:
   depth: 1
 

Makefile

@@ -97,6 +97,7 @@ clean:
 	@$(MAKE) -C examples/ $@ > $(VOID)
 	@$(MAKE) -C contrib/gen_html $@ > $(VOID)
 	@$(RM) zstd$(EXT) zstdmt$(EXT) tmp*
+	@$(RM) -r lz4
 	@echo Cleaning completed
 
 #------------------------------------------------------------------------------
@@ -274,6 +275,10 @@ gpp6install: apt-add-repo
 clang38install:
 	APT_PACKAGES="clang-3.8" $(MAKE) apt-install
 
+# Ubuntu 14.04 ships a too-old lz4
+lz4install:
+	[ -e lz4 ] || git clone https://github.com/lz4/lz4 && sudo $(MAKE) -C lz4 install
+
 endif
 
 

tests/Makefile

@@ -374,4 +374,26 @@ test-decodecorpus-cli: decodecorpus
 test-pool: poolTests
 	$(QEMU_SYS) ./poolTests
 
+test-lz4: ZSTD = LD_LIBRARY_PATH=/usr/local/lib $(PRGDIR)/zstd
+test-lz4: zstd decodecorpus
+	./decodecorpus -ptmp
+	# lz4 -> zstd
+	lz4 < tmp | \
+	$(ZSTD) -d | \
+	cmp - tmp
+	# zstd -> lz4
+	$(ZSTD) --format=lz4 < tmp | \
+	lz4 -d | \
+	cmp - tmp
+	# zstd -> zstd
+	$(ZSTD) --format=lz4 < tmp | \
+	$(ZSTD) -d | \
+	cmp - tmp
+	# zstd -> zstd
+	$(ZSTD) < tmp | \
+	$(ZSTD) -d | \
+	cmp - tmp
+
+	rm tmp
+
 endif