Add some more unit tests to make check

Signed-off-by: Alexander Larsson <[email protected]>

tests/Makefile.am

@@ -6,12 +6,15 @@ TEST_ASSETS = ${TEST_ASSETS_SMALL} \
 	f36-x86_64-silverblue.json.gz
 
 if ENABLE_VALGRIND
-WRITER_JSON_PREFIX=libtool --mode=execute ${VALGRIND} --quiet --leak-check=yes --error-exitcode=42
+VALGRIND_PREFIX=libtool --mode=execute ${VALGRIND} --quiet --leak-check=yes --error-exitcode=42
 endif
 
 EXTRA_DIST = test-checksums.sh $(patsubst %,assets/%,${TEST_ASSETS_SMALL}) $(patsubst %,assets/%.sha256_erofs,${TEST_ASSETS_SMALL})
 
 check-checksums:
-	$(srcdir)/test-checksums.sh "${WRITER_JSON_PREFIX} $(builddir)/../tools/" "$(srcdir)/assets" "${TEST_ASSETS}"
+	$(srcdir)/test-checksums.sh "${VALGRIND_PREFIX} $(builddir)/../tools/" "$(srcdir)/assets" "${TEST_ASSETS}"
 
-check: check-checksums
+check-units:
+	$(srcdir)/test-units.sh "${VALGRIND_PREFIX} $(builddir)/../tools/"
+
+check: check-units check-checksums

tests/test-units.sh

@@ -0,0 +1,63 @@
+#!/usr/bin/bash
+
+BINDIR="$1"
+
+set -e
+
+workdir=$(mktemp -d /var/tmp/lcfs-test.XXXXXX)
+trap 'rm -rf -- "$workdir"' EXIT
+
+function makeimage () {
+    local dir=$1
+    $BINDIR/mkcomposefs --digest-store=$dir/objects $dir/root $dir/test.cfs
+}
+
+function countobjects () {
+    local dir=$1
+    find $dir/objects -type f | wc -l
+}
+
+# Ensure small files are inlined
+function  test_inline () {
+    local dir=$1
+
+    echo foo > $dir/root/a-file
+
+    makeimage $dir
+
+    objects=$(countobjects $dir)
+    if [ $objects != 0 ]; then
+        return 1
+    fi
+}
+
+# Ensure we generate objects for large files
+function  test_objects () {
+    local dir=$1
+    dd if=/dev/zero bs=1 count=1024 2>/dev/null > $dir/root/a-file
+
+    makeimage $dir
+
+    objects=$(countobjects $dir)
+    if [ $objects != 1 ]; then
+        return 1
+    fi
+}
+
+TESTS="test_inline test_objects"
+res=0
+for i in $TESTS; do
+    testdir=$(mktemp -d $workdir/$i.XXXXXX)
+    mkdir $testdir/root
+    mkdir $testdir/objects
+    if $i $testdir ; then
+        echo "Test $i: OK"
+    else
+        res=1
+        echo "Test $i Failed"
+    fi
+
+    rm -rf $testdir
+done
+
+exit $res