test: lock V8 coverage counter semantics

tests/fixtures/v8-coverage-counter-semantics/counter-semantics.fixture.ts

@@ -0,0 +1,19 @@
+/// <reference types="vitest/globals" />
+
+import "./src/import-empty.ts";
+import "./src/import-side-effect.ts";
+import "./src/import-type-empty.ts";
+import { importedRuntimeValue } from "./src/import-value.ts";
+import { runtimeValue as namedRuntimeValue } from "./src/reexport-named.ts";
+import { runtimeValue } from "./src/runtime.ts";
+import { runtimeValue as starRuntimeValue } from "./src/reexport-star.ts";
+import type {} from "./src/type-only.ts";
+
+test("loads every counter semantics module", () => {
+  expect([
+    runtimeValue,
+    importedRuntimeValue,
+    namedRuntimeValue,
+    starRuntimeValue,
+  ]).toEqual([1, 1, 1, 1]);
+});

tests/fixtures/v8-coverage-counter-semantics/src/import-empty.ts

@@ -0,0 +1 @@
+import {} from "./runtime.ts";

tests/fixtures/v8-coverage-counter-semantics/src/import-side-effect.ts

@@ -0,0 +1 @@
+import "./runtime.ts";

tests/fixtures/v8-coverage-counter-semantics/src/import-type-empty.ts

@@ -0,0 +1 @@
+import type {} from "./runtime.ts";

tests/fixtures/v8-coverage-counter-semantics/src/import-value.ts

@@ -0,0 +1,3 @@
+import { runtimeValue } from "./runtime.ts";
+
+export { runtimeValue as importedRuntimeValue };

tests/fixtures/v8-coverage-counter-semantics/src/reexport-named.ts

@@ -0,0 +1 @@
+export { runtimeValue } from "./runtime.ts";

tests/fixtures/v8-coverage-counter-semantics/src/reexport-star.ts

@@ -0,0 +1 @@
+export * from "./runtime.ts";

tests/fixtures/v8-coverage-counter-semantics/src/runtime.ts

@@ -0,0 +1 @@
+export const runtimeValue = 1;

tests/fixtures/v8-coverage-counter-semantics/src/type-only.ts

@@ -0,0 +1,5 @@
+export interface CounterFixtureShape {
+  readonly value: number;
+}
+
+export type CounterFixtureValue = CounterFixtureShape["value"];