diff --git a/tests/user-envs.sh b/tests/user-envs.sh
index 430688de1..d63fe780a 100644
--- a/tests/user-envs.sh
+++ b/tests/user-envs.sh
@@ -17,6 +17,16 @@ outPath10=$(nix-env -f ./user-envs.nix -qa --out-path --no-name '*' | grep foo-1
 drvPath10=$(nix-env -f ./user-envs.nix -qa --drv-path --no-name '*' | grep foo-1.0)
 [ -n "$outPath10" -a -n "$drvPath10" ]
 
+# Query with json
+nix-env -f ./user-envs.nix -qa --json | jq -e '.[] | select(.name == "bar-0.1") | [
+    .outputName == "out",
+    .outputs.out == null
+] | all'
+nix-env -f ./user-envs.nix -qa --json --out-path | jq -e '.[] | select(.name == "bar-0.1") | [
+    .outputName == "out",
+    (.outputs.out | test("'$NIX_STORE_DIR'.*-0\\.1"))
+] | all'
+
 # Query descriptions.
 nix-env -f ./user-envs.nix -qa '*' --description | grep -q silly
 rm -rf $HOME/.nix-defexpr