From 65a119ddfdcf38a929c3ebf8ce2c9f2b0a480be4 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers3@gmail.com>
Date: Mon, 29 May 2017 18:12:00 -0700
Subject: [PATCH] run_tests.sh: test for same output on big endian CPU

---
 tools/mips_build.sh |  2 +-
 tools/run_tests.sh  | 16 ++++++++++++++++
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/tools/mips_build.sh b/tools/mips_build.sh
index 3cbfd02..c28ff55 100755
--- a/tools/mips_build.sh
+++ b/tools/mips_build.sh
@@ -4,6 +4,6 @@ set -eu
 
 TOOLCHAIN_DIR=$HOME/src/ddwrt-toolchains/toolchain-mips_34kc_gcc-5.1.0_musl-1.1.9
 
-make -j$(grep -c processor /proc/cpuinfo) test_programs \
+make -j$(grep -c processor /proc/cpuinfo) all test_programs \
 	CC="$TOOLCHAIN_DIR/bin/mips-openwrt-linux-musl-gcc" \
 	CFLAGS="-DNEED_PRINTF -Werror"
diff --git a/tools/run_tests.sh b/tools/run_tests.sh
index 772a9db..d468eef 100755
--- a/tools/run_tests.sh
+++ b/tools/run_tests.sh
@@ -225,6 +225,22 @@ mips_tests() {
 	run_cmd ./tools/mips_build.sh
 	run_cmd scp "${FILES[@]}" root@dd-wrt:
 	run_cmd ssh root@dd-wrt "$EXEC_TESTS_CMD"
+
+	log "Checking that compression on big endian CPU produces same output"
+	run_cmd scp gzip root@dd-wrt:
+	run_cmd ssh root@dd-wrt \
+		"rm -f big*.gz;
+		 ./gzip -c -6 $(basename $SMOKEDATA) > big6.gz;
+		 ./gzip -c -10 $(basename $SMOKEDATA) > big10.gz"
+	run_cmd scp root@dd-wrt:big*.gz .
+	make -j$NPROC gzip > /dev/null
+	./gzip -c -6 "$SMOKEDATA" > little6.gz
+	./gzip -c -10 "$SMOKEDATA" > little10.gz
+	if ! cmp big6.gz little6.gz || ! cmp big10.gz little10.gz; then
+		echo 1>&2 "Compressed data differed on big endian vs. little endian!"
+		return 1
+	fi
+	rm big*.gz little*.gz
 }
 
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