Vakyartha documentation

1#![allow(clippy::unwrap_used, clippy::expect_used, clippy::panic)]
2
3// ${VAR} interpolation for MCP server env values resolves through the same
4// secret path as provider keys; unresolved references fail closed.
5
6#[test]
7fn literal_values_pass_through() {
8 assert_eq!(
9 vak_core::interpolate_env_var("plain"),
10 Some("plain".to_string())
11 );
12}
13
14#[test]
15fn resolves_from_runtime_override() {
16 vak_config::set_override("TEST_MCP_KEY", "abc123");
17 assert_eq!(
18 vak_core::interpolate_env_var("${TEST_MCP_KEY}"),
19 Some("abc123".into())
20 );
21 assert_eq!(
22 vak_core::interpolate_env_var("Bearer ${TEST_MCP_KEY}"),
23 Some("Bearer abc123".into())
24 );
25 vak_config::clear_override("TEST_MCP_KEY");
26}
27
28#[test]
29fn unresolved_reference_fails_closed() {
30 vak_config::forget_dotenv_var("DEFINITELY_UNSET_MCP_VAR_9");
31 assert_eq!(
32 vak_core::interpolate_env_var("${DEFINITELY_UNSET_MCP_VAR_9}"),
33 None::<String>
34 );
35}
36