fix(lint): give access to SourceCode in 'deno test' (#28278)

Closes https://github.com/denoland/deno/issues/28273

cli/js/40_lint.js

@@ -17,6 +17,7 @@ const {
 } = core.ops;
 
 let doReport = op_lint_report;
+let doGetSource = op_lint_get_source;
 
 // Keep these in sync with Rust
 const AST_IDX_INVALID = 0;
@@ -264,7 +265,7 @@ export class SourceCode {
    */
   #getSource() {
     if (this.#source === null) {
-      this.#source = op_lint_get_source();
+      this.#source = doGetSource();
     }
     return /** @type {string} */ (this.#source);
   }
@@ -1365,6 +1366,9 @@ function runLintPlugin(plugin, fileName, sourceText) {
       fix,
     });
   };
+  doGetSource = () => {
+    return sourceText;
+  };
   try {
     const serializedAst = op_lint_create_serialized_ast(fileName, sourceText);
 
@@ -1373,6 +1377,7 @@ function runLintPlugin(plugin, fileName, sourceText) {
     resetState();
   }
   doReport = op_lint_report;
+  doGetSource = op_lint_get_source;
   return diagnostics;
 }
 

tests/specs/lint/lint_plugin_runtime_api/__test__.jsonc

@@ -8,6 +8,10 @@
     {
       "args": "test main.ts",
       "output": "test.out"
+    },
+    {
+      "args": "test main_test.ts",
+      "output": "main_test.out"
     }
   ]
 }

tests/specs/lint/lint_plugin_runtime_api/main_test.out

@@ -0,0 +1,6 @@
+Check [WILDCARD]main_test.ts
+running 1 test from ./main_test.ts
+SourceCode.text ... ok ([WILDCARD])
+
+ok | 1 passed | 0 failed ([WILDCARD])
+

tests/specs/lint/lint_plugin_runtime_api/main_test.ts

@@ -0,0 +1,22 @@
+Deno.test("SourceCode.text", () => {
+  const plugin: Deno.lint.Plugin = {
+    name: "sample",
+    rules: {
+      "test": {
+        create: (ctx) => {
+          ctx.sourceCode.text;
+          return {};
+        },
+      },
+    },
+  };
+  Deno.lint.runPlugin(
+    plugin,
+    "./test.js",
+    `function add(a, b) {
+  return a + b;
+}
+
+add(1, 2);`,
+  );
+});