Supporting DOS line endings in BATS tests

libexec/bats-exec-test

@@ -127,7 +127,7 @@ BATS_OUT="${BATS_TMPNAME}.out"
 
 bats_preprocess_source() {
   BATS_TEST_SOURCE="${BATS_TMPNAME}.src"
-  bats-preprocess < "$BATS_TEST_FILENAME" > "$BATS_TEST_SOURCE"
+  cat "$BATS_TEST_FILENAME" | tr -d '\r' | bats-preprocess > "$BATS_TEST_SOURCE"
   trap bats_cleanup_preprocessed_source err exit
   trap "bats_cleanup_preprocessed_source; exit 1" int
 }

test/bats.bats

@@ -103,3 +103,8 @@ fixtures bats
   [ $status -eq 0 ]
   [ "${lines[1]}" = "ok 1 dash-e on beginning of line" ]
 }
+
+@test "dos line endings are stripped before testing" {
+  run bats "$FIXTURE_ROOT/dos_line.bats"
+  [ $status -eq 0 ]
+}

test/fixtures/bats/dos_line.bats

@@ -0,0 +1,3 @@
+@test "foo" {
+  echo "foo"
+}