add backwards compatibility features for a wrapper library (#99)

Author: copperlight

package.json

@@ -1,6 +1,6 @@
 {
   "name": "nflx-spectator",
-  "version": "3.0.7",
+  "version": "3.0.8",
   "license": "Apache-2.0",
   "homepage": "https://github.com/Netflix/spectator-js",
   "author": "Netflix Telemetry Engineering <netflix-atlas@googlegroups.com>",

src/meter/counter.ts

@@ -12,9 +12,13 @@ export class Counter extends Meter {
         super(id, writer, "c");
     }
 
-    increment(delta: number = 1): Promise<void> {
-        if (delta > 0) {
-            const line = `${this._meter_type_symbol}:${this._id.spectatord_id}:${delta}`
+    add(amount: number = 1): Promise<void> {
+        return this.increment(amount);
+    }
+
+    increment(amount: number = 1): Promise<void> {
+        if (amount > 0) {
+            const line = `${this._meter_type_symbol}:${this._id.spectatord_id}:${amount}`
             return this._writer.write(line);
         } else {
             return new Promise((resolve: (value: void | PromiseLike<void>) => void): void => {

src/registry.ts

@@ -32,6 +32,10 @@ export class Registry {
         this.logger.debug(`Create Registry with extra_common_tags=${tags_toString(this._config.extra_common_tags)}`);
     }
 
+    config(): Config {
+        return this._config;
+    }
+
     writer(): WriterUnion {
         return this._writer;
     }

test/meter/counter.test.ts

@@ -6,6 +6,18 @@ describe("Counter Tests", (): void => {
 
     const tid = new Id("counter");
 
+    it("add delegates to increment", (): void => {
+        const c = new Counter(tid, new MemoryWriter());
+        const writer = c.writer() as MemoryWriter;
+        assert.isTrue(writer.is_empty());
+
+        c.add();
+        assert.equal("c:counter:1", writer.last_line());
+
+        c.add(2);
+        assert.equal("c:counter:2", writer.last_line());
+    });
+
     it("increment", (): void => {
         const c = new Counter(tid, new MemoryWriter());
         const writer = c.writer() as MemoryWriter;

test/registry.test.ts

@@ -37,6 +37,12 @@ describe("Registry Tests", (): void => {
         assert.isTrue(r.writer() instanceof UdpWriter);
     });
 
+    it("get config", (): void => {
+        const r = new Registry();
+        assert.equal("udp", r.config().location)
+        assert.deepEqual({}, r.config().extra_common_tags)
+    });
+
     it("age_gauge", (): void => {
         const r = new Registry(new Config("memory"));
         const writer = r.writer() as MemoryWriter;