Compile sources to separate directory for tests

.gitignore

@@ -1,5 +1,7 @@
 # Ignore for example failing-tests.json from AVA
 node_modules/.cache/
+# Build output for tests
+lib-test/
 # Java build files
 .gradle/
 *.class

.vscode/settings.json

@@ -6,6 +6,7 @@
 
     // transpiled JavaScript
     "lib": true,
+    "lib-test": true,
   },
   // Installing a new Node package often triggers VS Code's git limit warnings as there is typically
   // an intermediate stage where many files are modified. This setting suppresses these warnings.

eslint.config.mjs

@@ -27,6 +27,7 @@ export default [
     ignores: [
       "**/webpack.config.js",
       "lib/**/*",
+      "lib-test/**/*",
       "src/testdata/**/*",
       "tests/**/*",
       "build.mjs",

package.json

@@ -5,7 +5,7 @@
   "description": "CodeQL action",
   "scripts": {
     "build": "node build.mjs",
-    "test": "ava src/**.test.ts --serial --verbose",
+    "test": "tsc --project tsconfig.test.json && ava src/**.test.ts --serial --verbose",
     "test-debug": "ava src/**.test.ts --serial --verbose --timeout=20m",
     "lint": "eslint --report-unused-disable-directives --max-warnings=0 .",
     "lint-fix": "eslint --report-unused-disable-directives --max-warnings=0 . --fix",
@@ -15,7 +15,7 @@
   "ava": {
     "typescript": {
       "rewritePaths": {
-        "src/": "lib/"
+        "src/": "lib-test/"
       },
       "compile": false
     }

tsconfig.json

@@ -1,26 +1,11 @@
 {
   "compilerOptions": {
     /* Basic Options */
-    // "incremental": true,                   /* Enable incremental compilation */
     "lib": ["ES2021"],
     "target": "ES2021",
     "module": "commonjs",                     /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
-    // "allowJs": true,                       /* Allow javascript files to be compiled. */
-    // "checkJs": true,                       /* Report errors in .js files. */
-    // "jsx": "preserve",                     /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
-    // "declaration": true,                   /* Generates corresponding '.d.ts' file. */
-    // "declarationMap": true,                /* Generates a sourcemap for each corresponding '.d.ts' file. */
+    "noEmit": true,                           /* Do not emit outputs. */
     "sourceMap": true,                        /* Generates corresponding '.map' file. */
-    // "outFile": "./",                       /* Concatenate and emit output to single file. */
-    "outDir": "./lib",                        /* Redirect output structure to the directory. */
-    "rootDir": "./src",                       /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
-    // "composite": true,                     /* Enable project compilation */
-    // "tsBuildInfoFile": "./",               /* Specify file to store incremental compilation information */
-    // "removeComments": true,                /* Do not emit comments to output. */
-    // "noEmit": true,                        /* Do not emit outputs. */
-    // "importHelpers": true,                 /* Import emit helpers from 'tslib'. */
-    // "downlevelIteration": true,            /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
-    // "isolatedModules": true,               /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
 
     /* Strict Type-Checking Options */
     "strict": true,                           /* Enable all strict type-checking options. */
@@ -39,27 +24,8 @@
     "noFallthroughCasesInSwitch": true,       /* Report errors for fallthrough cases in switch statement. */
 
     /* Module Resolution Options */
-    // "moduleResolution": "node",            /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
-    // "baseUrl": "./",                       /* Base directory to resolve non-absolute module names. */
-    // "paths": {},                           /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
-    // "rootDirs": [],                        /* List of root folders whose combined content represents the structure of the project at runtime. */
-    // "typeRoots": [],                       /* List of folders to include type definitions from. */
-    // "types": [],                           /* Type declaration files to be included in compilation. */
-    // "allowSyntheticDefaultImports": true,  /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
     "esModuleInterop": true,                  /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
-    // "preserveSymlinks": true,              /* Do not resolve the real path of symlinks. */
-    // "allowUmdGlobalAccess": true,          /* Allow accessing UMD globals from modules. */
     "resolveJsonModule": true,
-
-    /* Source Map Options */
-    // "sourceRoot": "",                      /* Specify the location where debugger should locate TypeScript files instead of source locations. */
-    // "mapRoot": "",                         /* Specify the location where debugger should locate map files instead of generated locations. */
-    // "inlineSourceMap": true,               /* Emit a single file with source maps instead of having a separate file. */
-    // "inlineSources": true,                 /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
-
-    /* Experimental Options */
-    // "experimentalDecorators": true,        /* Enables experimental support for ES7 decorators. */
-    // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
   },
   "exclude": ["node_modules"]
 }

tsconfig.test.json

@@ -0,0 +1,9 @@
+{
+  "$schema": "https://json.schemastore.org/tsconfig",
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "noEmit": false,
+    "outDir": "./lib-test",
+    "rootDir": "./src",
+  },
+}