bump cache version

sdk/core/core-tracing/rollup.base.config.js

@@ -1,6 +1,7 @@
 import nodeResolve from "@rollup/plugin-node-resolve";
 import multiEntry from "@rollup/plugin-multi-entry";
 import cjs from "@rollup/plugin-commonjs";
+import json from "@rollup/plugin-json";
 import replace from "@rollup/plugin-replace";
 import { terser } from "rollup-plugin-terser";
 import sourcemaps from "rollup-plugin-sourcemaps";

sdk/core/core-tracing/src/utils/cache.ts

@@ -8,13 +8,14 @@ import { getGlobalObject } from "./global";
 // V2 = OpenTelemetry 0.2
 // V3 = OpenTelemetry 0.6.1
 // V4 = OpenTelemetry 1.0.0-rc.0
-const GLOBAL_TRACER_VERSION = 4;
+// V5 onwards will match OpenTelemetry version
+export const GLOBAL_TRACER_VERSION = "0.20.0";
 // preview5 shipped with @azure/core-tracing.tracerCache
 // and didn't have smart detection for collisions
-const GLOBAL_TRACER_SYMBOL = Symbol.for("@azure/core-tracing.tracerCache3");
+const GLOBAL_TRACER_SYMBOL = Symbol.for(`@azure/core-tracing.tracerCache${GLOBAL_TRACER_VERSION}`);
 
 export interface TracerCache {
-  version: number;
+  version: number | string;
   tracer?: Tracer;
 }
 

sdk/core/core-tracing/test/cache.spec.ts

@@ -0,0 +1,18 @@
+import assert from "assert";
+import { GLOBAL_TRACER_VERSION } from "../src/utils/cache";
+import * as fs from "fs";
+import * as path from "path";
+
+describe("cache", () => {
+  const packageJson = JSON.parse(
+    fs.readFileSync(path.join(__dirname, "../package.json"), { encoding: "utf8" })
+  );
+
+  it("ensure version matches @opentelemetry/api version", () => {
+    assert.equal(
+      GLOBAL_TRACER_VERSION,
+      packageJson["dependencies"]["@opentelemetry/api"],
+      "GLOBAL_TRACER_VERSION constant should match the version set in package.json"
+    );
+  });
+});