Merge pull request #2154 from fermyon/variables-test

Add a runtime test for the variables interface

test-components/variables/Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "variables"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+crate-type = ["cdylib"]
+
+[dependencies]
+helper = { path = "../helper" }

test-components/variables/README.md

@@ -0,0 +1,8 @@
+# Variables
+
+Tests the variable interface.
+
+## Expectations
+
+This test component expects the following to be true:
+* Only the variable named "variable" is defined with value "value"

test-components/variables/src/lib.rs

@@ -0,0 +1,18 @@
+use helper::ensure_matches;
+
+use bindings::fermyon::spin2_0_0::variables::{get, Error};
+
+helper::define_component!(Component);
+
+impl Component {
+    fn main() -> Result<(), String> {
+        ensure_matches!(get("variable"), Ok(val) if val == "value");
+        ensure_matches!(get("non_existent"), Err(Error::Undefined(_)));
+
+        ensure_matches!(get("invalid-name"), Err(Error::InvalidName(_)));
+        ensure_matches!(get("invalid!name"), Err(Error::InvalidName(_)));
+        ensure_matches!(get("4invalidname"), Err(Error::InvalidName(_)));
+
+        Ok(())
+    }
+}

tests/runtime-tests/tests/variables/spin.toml

@@ -0,0 +1,16 @@
+spin_manifest_version = 2
+
+[application]
+name = "variables"
+authors = ["Fermyon Engineering <[email protected]>"]
+version = "0.1.0"
+
+[[trigger.http]]
+route = "/"
+component = "test"
+
+[component.test]
+source = "{{variables}}"
+
+[component.test.variables]
+variable = "value"

tests/runtime.rs

@@ -27,6 +27,7 @@ mod runtime_tests {
     test!(sqlite_no_permission, "sqlite-no-permission");
     test!(key_value, "key-value");
     test!(key_value_no_permission, "key-value-no-permission");
+    test!(variables, "variables");
 
     fn run(name: &str) {
         let spin_binary_path = env!("CARGO_BIN_EXE_spin").into();