Add npm test to CI

Author: tnull

.github/workflows/swift.yml

@@ -37,12 +37,12 @@ jobs:
             -   name: Check that the latest auto-generated Swift files are in the repo
                 run: |
                     npm install
-                    # python3 ./ # Generate bindings into local directory
                     npm run tsc
                     node ./src/index.mjs
-                    # git diff --exit-code ci/LDKSwift/Sources/LDKSwift ':(exclude)ci/LDKSwift/Sources/LDKSwift/bindings/Bindings.swift'
                 env:
                     LDK_SWIFT_GENERATOR_INPUT_HEADER_PATH: ci/ldk-c-bindings/lightning-c-bindings/include/lightning.h
+            -   name: Test bindings parsing and generation
+                run: npm test
             -   name: Install Swift Toolchain
                 run: |
                     curl --verbose -L -o swift-5.7.2-RELEASE-ubuntu22.04.tar.gz https://download.swift.org/swift-5.7.2-release/ubuntu2204/swift-5.7.2-RELEASE/swift-5.7.2-RELEASE-ubuntu22.04.tar.gz