fix: return required load to test.bats

.gitmodules

@@ -4,3 +4,6 @@
 [submodule "test/test_helper/bats-assert"]
 	path = test/test_helper/bats-assert
 	url = https://github.com/bats-core/bats-assert.git
+[submodule "test/test_helper/bats-support"]
+	path = test/test_helper/bats-support
+	url = https://github.com/bats-core/bats-support.git

test/test.bats

@@ -1,6 +1,7 @@
 #!/usr/bin/env bats
 
 setup() {
+  load 'test_helper/bats-support/load'
   load 'test_helper/bats-assert/load'
 }
 
@@ -53,3 +54,9 @@ EOF
 
   assert_output "${expected_output}"
 }
+
+@test "script should fail to get the non-existing secret with reasonable error " {
+  run ./src/kd.sh non-existing-secret
+
+  assert_output --partial "Error: Unable to get secret non-existing-secret in namespace default"
+}