1 files changed, 28 insertions, 2 deletions
diff --git a/test/cmdlineTests.sh b/test/cmdlineTests.sh
index 9dfbe409..fdc9fbe3 100755
--- a/test/cmdlineTests.sh
+++ b/test/cmdlineTests.sh
@@ -262,6 +262,25 @@ SOLTMPDIR=$(mktemp -d)
 )
 rm -rf "$SOLTMPDIR"
 
+test_solc_assembly_output() {
+    local input="${1}"
+    local expected="${2}"
+    local solc_args="${3}"
+
+    local expected_object="object \"object\" { code "${expected}" }"
+
+    output=$(echo "${input}" | "$SOLC" - ${solc_args} 2>/dev/null)
+    empty=$(echo $output | sed -ne '/'"${expected_object}"'/p')
+    if [ -z "$empty" ]
+    then
+        printError "Incorrect assembly output. Expected: "
+        echo -e ${expected}
+        printError "with arguments ${solc_args}, but got:"
+        echo "${output}"
+        exit 1
+    fi
+}
+
 printTask "Testing assemble, yul, strict-assembly and optimize..."
 (
     echo '{}' | "$SOLC" - --assemble &>/dev/null
@@ -271,8 +290,15 @@ printTask "Testing assemble, yul, strict-assembly and optimize..."
     # Test options above in conjunction with --optimize.
     # Using both, --assemble and --optimize should fail.
     ! echo '{}' | "$SOLC" - --assemble --optimize &>/dev/null
-    echo '{}' | "$SOLC" - --yul --optimize &>/dev/null
-    echo '{}' | "$SOLC" - --strict-assembly --optimize &>/dev/null
+
+    # Test yul and strict assembly output
+    # Non-empty code results in non-empty binary representation with optimizations turned off,
+    # while it results in empty binary representation with optimizations turned on.
+    test_solc_assembly_output "{ let x:u256 := 0:u256 }" "{ let x:u256 := 0:u256 }" "--yul"
+    test_solc_assembly_output "{ let x:u256 := 0:u256 }" "{ }" "--yul --optimize"
+
+    test_solc_assembly_output "{ let x := 0 }" "{ let x := 0 }" "--strict-assembly"
+    test_solc_assembly_output "{ let x := 0 }" "{ }" "--strict-assembly --optimize"
 )