better cluster nodes discorvery strategy after MOVED error, add PubSub test

lib/client.spec.ts

@@ -4,6 +4,7 @@ import { itWithClient, TEST_REDIS_SERVERS, TestRedisServers } from './test-utils
 import RedisClient from './client';
 import { AbortError } from './errors';
 import { defineScript } from './lua-script';
+import { spy } from 'sinon';
 
 describe('Client', () => {
     describe('authentication', () => {
@@ -342,4 +343,50 @@ describe('Client', () => {
             keys.sort()
         );
     });
+
+    itWithClient(TestRedisServers.OPEN, 'PubSub', async publisher => {
+        const subscriber = publisher.duplicate();
+
+        await subscriber.connect();
+
+        try {
+            const channelListener1 = spy(),
+                channelListener2 = spy(),
+                patternListener = spy();
+
+            await Promise.all([
+                subscriber.subscribe('channel', channelListener1),
+                subscriber.subscribe('channel', channelListener2),
+                subscriber.pSubscribe('channel*', patternListener)
+            ]);
+
+            await publisher.publish('channel', 'message');
+            assert.ok(channelListener1.calledOnceWithExactly('message', 'channel'));
+            assert.ok(channelListener2.calledOnceWithExactly('message', 'channel'));
+            assert.ok(patternListener.calledOnceWithExactly('message', 'channel'));
+
+            await subscriber.unsubscribe('channel', channelListener1);
+            await publisher.publish('channel', 'message');
+            assert.ok(channelListener1.calledOnce);
+            assert.ok(channelListener2.calledTwice);
+            assert.ok(channelListener2.secondCall.calledWithExactly('message', 'channel'));
+            assert.ok(patternListener.calledTwice);
+            assert.ok(patternListener.secondCall.calledWithExactly('message', 'channel'));
+
+            await subscriber.unsubscribe('channel');
+            await publisher.publish('channel', 'message');
+            assert.ok(channelListener1.calledOnce);
+            assert.ok(channelListener2.calledTwice);
+            assert.ok(patternListener.calledThrice);
+            assert.ok(patternListener.thirdCall.calledWithExactly('message', 'channel'));
+
+            await subscriber.pUnsubscribe();
+            await publisher.publish('channel', 'message');
+            assert.ok(channelListener1.calledOnce);
+            assert.ok(channelListener2.calledTwice);
+            assert.ok(patternListener.calledThrice);
+        } finally {
+            await subscriber.disconnect();
+        }
+    });
 });

lib/client.ts

@@ -306,19 +306,19 @@ export default class RedisClient<M extends RedisModules = RedisModules, S extend
         return promise;
     }
 
-    UNSUBSCRIBE(channels: string | Array<string>, listener?: PubSubListener): Promise<void> {
+    UNSUBSCRIBE(channels?: string | Array<string>, listener?: PubSubListener): Promise<void> {
         return this.#unsubscribe(PubSubUnsubscribeCommands.UNSUBSCRIBE, channels, listener);
     }
 
     unsubscribe = this.UNSUBSCRIBE;
 
-    PUNSUBSCRIBE(patterns: string | Array<string>, listener?: PubSubListener): Promise<void> {
+    PUNSUBSCRIBE(patterns?: string | Array<string>, listener?: PubSubListener): Promise<void> {
         return this.#unsubscribe(PubSubUnsubscribeCommands.PUNSUBSCRIBE, patterns, listener);
     }
 
     pUnsubscribe = this.PUNSUBSCRIBE;
 
-    #unsubscribe(command: PubSubUnsubscribeCommands, channels: string | Array<string>, listener?: PubSubListener): Promise<void> {
+    #unsubscribe(command: PubSubUnsubscribeCommands, channels?: string | Array<string>, listener?: PubSubListener): Promise<void> {
         const promise = this.#queue.unsubscribe(command, channels, listener);
         this.#tick();
         return promise;

lib/cluster-slots.ts

@@ -32,9 +32,17 @@ export default class RedisClusterSlots {
         throw new Error('None of the root nodes is available');
     }
 
-    async discover(): Promise<void> {
+    async discover(startWith: RedisClient): Promise<void> {
-        // TODO: shuffle?
+        try {
+            await this.#discoverNodes(startWith.options?.socket);
+            return;
+        } catch (err) {
+            // this.emit('error', err);
+        }
+
         for (const client of this.#clientByKey.values()) {
+            if (client === startWith) continue;
+            
             try {
                 await this.#discoverNodes(client.options?.socket);
                 return;

lib/cluster.ts

@@ -61,7 +61,7 @@ export default class RedisCluster {
             if (err.message.startsWith('ASK')) {
                 // TODO
             } else if (err.message.startsWith('MOVED')) {
-                await this.#slots.discover();
+                await this.#slots.discover(client);
 
                 if (redirections < (this.#options.maxCommandRedirections ?? 16)) {
                     return this.sendCommand(args, firstKeyIndex, isReadonly, redirections + 1);

lib/commands-queue.ts

@@ -204,9 +204,15 @@ export default class RedisCommandsQueue {
         return this.#pushPubSubCommand(command, channelsToSubscribe);
     }
 
-    unsubscribe(command: PubSubUnsubscribeCommands, channels: string | Array<string>, listener?: PubSubListener) {
+    unsubscribe(command: PubSubUnsubscribeCommands, channels?: string | Array<string>, listener?: PubSubListener) {
-        const listeners = command === PubSubUnsubscribeCommands.UNSUBSCRIBE ? this.#pubSubListeners.channels : this.#pubSubListeners.patterns,
+        const listeners = command === PubSubUnsubscribeCommands.UNSUBSCRIBE ? this.#pubSubListeners.channels : this.#pubSubListeners.patterns;
-            channelsToUnsubscribe = [];
+        if (!channels) {
+            const keys = [...listeners.keys()];
+            listeners.clear();
+            return this.#pushPubSubCommand(command, keys);
+        }
+
+        const channelsToUnsubscribe = [];
         for (const channel of (Array.isArray(channels) ? channels : [channels])) {
             const set = listeners.get(channel);
             if (!set) continue;

package-lock.json

@@ -17,11 +17,13 @@
         "@istanbuljs/nyc-config-typescript": "^1.0.1",
         "@types/mocha": "^8.2.2",
         "@types/node": "^15.6.1",
+        "@types/sinon": "^10.0.2",
         "@types/tcp-port-used": "^1.0.0",
         "@types/which": "^2.0.0",
         "@types/yallist": "^4.0.0",
         "mocha": "^8.4.0",
         "nyc": "^15.1.0",
+        "sinon": "^11.1.1",
         "source-map-support": "^0.5.19",
         "tcp-port-used": "^1.0.2",
         "ts-node": "^10.0.0",
@@ -470,6 +472,41 @@
         "node": ">=8"
       }
     },
+    "node_modules/@sinonjs/commons": {
+      "version": "1.8.3",
+      "resolved": "https://registry.npmjs.org/@sinonjs/commons/-/commons-1.8.3.tgz",
+      "integrity": "sha512-xkNcLAn/wZaX14RPlwizcKicDk9G3F8m2nU3L7Ukm5zBgTwiT0wsoFAHx9Jq56fJA1z/7uKGtCRu16sOUCLIHQ==",
+      "dev": true,
+      "dependencies": {
+        "type-detect": "4.0.8"
+      }
+    },
+    "node_modules/@sinonjs/fake-timers": {
+      "version": "7.1.2",
+      "resolved": "https://registry.npmjs.org/@sinonjs/fake-timers/-/fake-timers-7.1.2.tgz",
+      "integrity": "sha512-iQADsW4LBMISqZ6Ci1dupJL9pprqwcVFTcOsEmQOEhW+KLCVn/Y4Jrvg2k19fIHCp+iFprriYPTdRcQR8NbUPg==",
+      "dev": true,
+      "dependencies": {
+        "@sinonjs/commons": "^1.7.0"
+      }
+    },
+    "node_modules/@sinonjs/samsam": {
+      "version": "6.0.2",
+      "resolved": "https://registry.npmjs.org/@sinonjs/samsam/-/samsam-6.0.2.tgz",
+      "integrity": "sha512-jxPRPp9n93ci7b8hMfJOFDPRLFYadN6FSpeROFTR4UNF4i5b+EK6m4QXPO46BDhFgRy1JuS87zAnFOzCUwMJcQ==",
+      "dev": true,
+      "dependencies": {
+        "@sinonjs/commons": "^1.6.0",
+        "lodash.get": "^4.4.2",
+        "type-detect": "^4.0.8"
+      }
+    },
+    "node_modules/@sinonjs/text-encoding": {
+      "version": "0.7.1",
+      "resolved": "https://registry.npmjs.org/@sinonjs/text-encoding/-/text-encoding-0.7.1.tgz",
+      "integrity": "sha512-+iTbntw2IZPb/anVDbypzfQa+ay64MW0Zo8aJ8gZPWMMK6/OubMVb6lUPMagqjOPnmtauXnFCACVl3O7ogjeqQ==",
+      "dev": true
+    },
     "node_modules/@tsconfig/node10": {
       "version": "1.0.7",
       "resolved": "https://registry.npmjs.org/@tsconfig/node10/-/node10-1.0.7.tgz",
@@ -507,6 +544,15 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/@types/sinon": {
+      "version": "10.0.2",
+      "resolved": "https://registry.npmjs.org/@types/sinon/-/sinon-10.0.2.tgz",
+      "integrity": "sha512-BHn8Bpkapj8Wdfxvh2jWIUoaYB/9/XhsL0oOvBfRagJtKlSl9NWPcFOz2lRukI9szwGxFtYZCTejJSqsGDbdmw==",
+      "dev": true,
+      "dependencies": {
+        "@sinonjs/fake-timers": "^7.1.0"
+      }
+    },
     "node_modules/@types/tcp-port-used": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/@types/tcp-port-used/-/tcp-port-used-1.0.0.tgz",
@@ -1400,6 +1446,12 @@
         "node": ">=v0.10.0"
       }
     },
+    "node_modules/isarray": {
+      "version": "0.0.1",
+      "resolved": "https://registry.npmjs.org/isarray/-/isarray-0.0.1.tgz",
+      "integrity": "sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8=",
+      "dev": true
+    },
     "node_modules/isexe": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/isexe/-/isexe-2.0.0.tgz",
@@ -1567,6 +1619,12 @@
         "node": ">=6"
       }
     },
+    "node_modules/just-extend": {
+      "version": "4.2.1",
+      "resolved": "https://registry.npmjs.org/just-extend/-/just-extend-4.2.1.tgz",
+      "integrity": "sha512-g3UB796vUFIY90VIv/WX3L2c8CS2MdWUww3CNrYmqza1Fg0DURc2K/O4YrnklBdQarSJ/y8JnJYDGc+1iumQjg==",
+      "dev": true
+    },
     "node_modules/locate-path": {
       "version": "6.0.0",
       "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-6.0.0.tgz",
@@ -1588,6 +1646,12 @@
       "integrity": "sha1-+wMJF/hqMTTlvJvsDWngAT3f7bI=",
       "dev": true
     },
+    "node_modules/lodash.get": {
+      "version": "4.4.2",
+      "resolved": "https://registry.npmjs.org/lodash.get/-/lodash.get-4.4.2.tgz",
+      "integrity": "sha1-LRd/ZS+jHpObRDjVNBSZ36OCXpk=",
+      "dev": true
+    },
     "node_modules/log-symbols": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/log-symbols/-/log-symbols-4.0.0.tgz",
@@ -1701,6 +1765,19 @@
         "node": "^10 || ^12 || ^13.7 || ^14 || >=15.0.1"
       }
     },
+    "node_modules/nise": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/nise/-/nise-5.1.0.tgz",
+      "integrity": "sha512-W5WlHu+wvo3PaKLsJJkgPup2LrsXCcm7AWwyNZkUnn5rwPkuPBi3Iwk5SQtN0mv+K65k7nKKjwNQ30wg3wLAQQ==",
+      "dev": true,
+      "dependencies": {
+        "@sinonjs/commons": "^1.7.0",
+        "@sinonjs/fake-timers": "^7.0.4",
+        "@sinonjs/text-encoding": "^0.7.1",
+        "just-extend": "^4.0.2",
+        "path-to-regexp": "^1.7.0"
+      }
+    },
     "node_modules/node-preload": {
       "version": "0.2.1",
       "resolved": "https://registry.npmjs.org/node-preload/-/node-preload-0.2.1.tgz",
@@ -2033,6 +2110,15 @@
         "node": ">=8"
       }
     },
+    "node_modules/path-to-regexp": {
+      "version": "1.8.0",
+      "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-1.8.0.tgz",
+      "integrity": "sha512-n43JRhlUKUAlibEJhPeir1ncUID16QnEjNpwzNdO3Lm4ywrBpBZ5oLD0I6br9evr1Y9JTqwRtAh7JLoOzAQdVA==",
+      "dev": true,
+      "dependencies": {
+        "isarray": "0.0.1"
+      }
+    },
     "node_modules/picomatch": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-2.3.0.tgz",
@@ -2269,6 +2355,36 @@
       "integrity": "sha512-VUJ49FC8U1OxwZLxIbTTrDvLnf/6TDgxZcK8wxR8zs13xpx7xbG60ndBlhNrFi2EMuFRoeDoJO7wthSLq42EjA==",
       "dev": true
     },
+    "node_modules/sinon": {
+      "version": "11.1.1",
+      "resolved": "https://registry.npmjs.org/sinon/-/sinon-11.1.1.tgz",
+      "integrity": "sha512-ZSSmlkSyhUWbkF01Z9tEbxZLF/5tRC9eojCdFh33gtQaP7ITQVaMWQHGuFM7Cuf/KEfihuh1tTl3/ABju3AQMg==",
+      "dev": true,
+      "dependencies": {
+        "@sinonjs/commons": "^1.8.3",
+        "@sinonjs/fake-timers": "^7.1.0",
+        "@sinonjs/samsam": "^6.0.2",
+        "diff": "^5.0.0",
+        "nise": "^5.1.0",
+        "supports-color": "^7.2.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/sinon"
+      }
+    },
+    "node_modules/sinon/node_modules/supports-color": {
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
+      "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
+      "dev": true,
+      "dependencies": {
+        "has-flag": "^4.0.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/source-map": {
       "version": "0.5.7",
       "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.5.7.tgz",
@@ -2477,6 +2593,15 @@
         "node": ">=0.3.1"
       }
     },
+    "node_modules/type-detect": {
+      "version": "4.0.8",
+      "resolved": "https://registry.npmjs.org/type-detect/-/type-detect-4.0.8.tgz",
+      "integrity": "sha512-0fr/mIH1dlO+x7TlcMy+bIDqKPsw/70tVyeHW787goQjhmqaZe10uwLujubK9q9Lg6Fiho1KUKDYz0Z7k7g5/g==",
+      "dev": true,
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/type-fest": {
       "version": "0.8.1",
       "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-0.8.1.tgz",
@@ -3155,6 +3280,41 @@
       "integrity": "sha512-ZXRY4jNvVgSVQ8DL3LTcakaAtXwTVUxE81hslsyD2AtoXW/wVob10HkOJ1X/pAlcI7D+2YoZKg5do8G/w6RYgA==",
       "dev": true
     },
+    "@sinonjs/commons": {
+      "version": "1.8.3",
+      "resolved": "https://registry.npmjs.org/@sinonjs/commons/-/commons-1.8.3.tgz",
+      "integrity": "sha512-xkNcLAn/wZaX14RPlwizcKicDk9G3F8m2nU3L7Ukm5zBgTwiT0wsoFAHx9Jq56fJA1z/7uKGtCRu16sOUCLIHQ==",
+      "dev": true,
+      "requires": {
+        "type-detect": "4.0.8"
+      }
+    },
+    "@sinonjs/fake-timers": {
+      "version": "7.1.2",
+      "resolved": "https://registry.npmjs.org/@sinonjs/fake-timers/-/fake-timers-7.1.2.tgz",
+      "integrity": "sha512-iQADsW4LBMISqZ6Ci1dupJL9pprqwcVFTcOsEmQOEhW+KLCVn/Y4Jrvg2k19fIHCp+iFprriYPTdRcQR8NbUPg==",
+      "dev": true,
+      "requires": {
+        "@sinonjs/commons": "^1.7.0"
+      }
+    },
+    "@sinonjs/samsam": {
+      "version": "6.0.2",
+      "resolved": "https://registry.npmjs.org/@sinonjs/samsam/-/samsam-6.0.2.tgz",
+      "integrity": "sha512-jxPRPp9n93ci7b8hMfJOFDPRLFYadN6FSpeROFTR4UNF4i5b+EK6m4QXPO46BDhFgRy1JuS87zAnFOzCUwMJcQ==",
+      "dev": true,
+      "requires": {
+        "@sinonjs/commons": "^1.6.0",
+        "lodash.get": "^4.4.2",
+        "type-detect": "^4.0.8"
+      }
+    },
+    "@sinonjs/text-encoding": {
+      "version": "0.7.1",
+      "resolved": "https://registry.npmjs.org/@sinonjs/text-encoding/-/text-encoding-0.7.1.tgz",
+      "integrity": "sha512-+iTbntw2IZPb/anVDbypzfQa+ay64MW0Zo8aJ8gZPWMMK6/OubMVb6lUPMagqjOPnmtauXnFCACVl3O7ogjeqQ==",
+      "dev": true
+    },
     "@tsconfig/node10": {
       "version": "1.0.7",
       "resolved": "https://registry.npmjs.org/@tsconfig/node10/-/node10-1.0.7.tgz",
@@ -3191,6 +3351,15 @@
       "integrity": "sha512-7EIraBEyRHEe7CH+Fm1XvgqU6uwZN8Q7jppJGcqjROMT29qhAuuOxYB1uEY5UMYQKEmA5D+5tBnhdaPXSsLONA==",
       "dev": true
     },
+    "@types/sinon": {
+      "version": "10.0.2",
+      "resolved": "https://registry.npmjs.org/@types/sinon/-/sinon-10.0.2.tgz",
+      "integrity": "sha512-BHn8Bpkapj8Wdfxvh2jWIUoaYB/9/XhsL0oOvBfRagJtKlSl9NWPcFOz2lRukI9szwGxFtYZCTejJSqsGDbdmw==",
+      "dev": true,
+      "requires": {
+        "@sinonjs/fake-timers": "^7.1.0"
+      }
+    },
     "@types/tcp-port-used": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/@types/tcp-port-used/-/tcp-port-used-1.0.0.tgz",
@@ -3858,6 +4027,12 @@
         "is-url": "^1.2.4"
       }
     },
+    "isarray": {
+      "version": "0.0.1",
+      "resolved": "https://registry.npmjs.org/isarray/-/isarray-0.0.1.tgz",
+      "integrity": "sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8=",
+      "dev": true
+    },
     "isexe": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/isexe/-/isexe-2.0.0.tgz",
@@ -3987,6 +4162,12 @@
         "minimist": "^1.2.5"
       }
     },
+    "just-extend": {
+      "version": "4.2.1",
+      "resolved": "https://registry.npmjs.org/just-extend/-/just-extend-4.2.1.tgz",
+      "integrity": "sha512-g3UB796vUFIY90VIv/WX3L2c8CS2MdWUww3CNrYmqza1Fg0DURc2K/O4YrnklBdQarSJ/y8JnJYDGc+1iumQjg==",
+      "dev": true
+    },
     "locate-path": {
       "version": "6.0.0",
       "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-6.0.0.tgz",
@@ -4002,6 +4183,12 @@
       "integrity": "sha1-+wMJF/hqMTTlvJvsDWngAT3f7bI=",
       "dev": true
     },
+    "lodash.get": {
+      "version": "4.4.2",
+      "resolved": "https://registry.npmjs.org/lodash.get/-/lodash.get-4.4.2.tgz",
+      "integrity": "sha1-LRd/ZS+jHpObRDjVNBSZ36OCXpk=",
+      "dev": true
+    },
     "log-symbols": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/log-symbols/-/log-symbols-4.0.0.tgz",
@@ -4086,6 +4273,19 @@
       "integrity": "sha512-a1cQNyczgKbLX9jwbS/+d7W8fX/RfgYR7lVWwWOGIPNgK2m0MWvrGF6/m4kk6U3QcFMnZf3RIhL0v2Jgh/0Uxw==",
       "dev": true
     },
+    "nise": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/nise/-/nise-5.1.0.tgz",
+      "integrity": "sha512-W5WlHu+wvo3PaKLsJJkgPup2LrsXCcm7AWwyNZkUnn5rwPkuPBi3Iwk5SQtN0mv+K65k7nKKjwNQ30wg3wLAQQ==",
+      "dev": true,
+      "requires": {
+        "@sinonjs/commons": "^1.7.0",
+        "@sinonjs/fake-timers": "^7.0.4",
+        "@sinonjs/text-encoding": "^0.7.1",
+        "just-extend": "^4.0.2",
+        "path-to-regexp": "^1.7.0"
+      }
+    },
     "node-preload": {
       "version": "0.2.1",
       "resolved": "https://registry.npmjs.org/node-preload/-/node-preload-0.2.1.tgz",
@@ -4342,6 +4542,15 @@
       "integrity": "sha512-ojmeN0qd+y0jszEtoY48r0Peq5dwMEkIlCOu6Q5f41lfkswXuKtYrhgoTpLnyIcHm24Uhqx+5Tqm2InSwLhE6Q==",
       "dev": true
     },
+    "path-to-regexp": {
+      "version": "1.8.0",
+      "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-1.8.0.tgz",
+      "integrity": "sha512-n43JRhlUKUAlibEJhPeir1ncUID16QnEjNpwzNdO3Lm4ywrBpBZ5oLD0I6br9evr1Y9JTqwRtAh7JLoOzAQdVA==",
+      "dev": true,
+      "requires": {
+        "isarray": "0.0.1"
+      }
+    },
     "picomatch": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-2.3.0.tgz",
@@ -4520,6 +4729,31 @@
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       "dev": true
     },
+    "sinon": {
+      "version": "11.1.1",
+      "resolved": "https://registry.npmjs.org/sinon/-/sinon-11.1.1.tgz",
+      "integrity": "sha512-ZSSmlkSyhUWbkF01Z9tEbxZLF/5tRC9eojCdFh33gtQaP7ITQVaMWQHGuFM7Cuf/KEfihuh1tTl3/ABju3AQMg==",
+      "dev": true,
+      "requires": {
+        "@sinonjs/commons": "^1.8.3",
+        "@sinonjs/fake-timers": "^7.1.0",
+        "@sinonjs/samsam": "^6.0.2",
+        "diff": "^5.0.0",
+        "nise": "^5.1.0",
+        "supports-color": "^7.2.0"
+      },
+      "dependencies": {
+        "supports-color": {
+          "version": "7.2.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
+          "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
+          "dev": true,
+          "requires": {
+            "has-flag": "^4.0.0"
+          }
+        }
+      }
+    },
     "source-map": {
       "version": "0.5.7",
       "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.5.7.tgz",
@@ -4666,6 +4900,12 @@
         }
       }
     },
+    "type-detect": {
+      "version": "4.0.8",
+      "resolved": "https://registry.npmjs.org/type-detect/-/type-detect-4.0.8.tgz",
+      "integrity": "sha512-0fr/mIH1dlO+x7TlcMy+bIDqKPsw/70tVyeHW787goQjhmqaZe10uwLujubK9q9Lg6Fiho1KUKDYz0Z7k7g5/g==",
+      "dev": true
+    },
     "type-fest": {
       "version": "0.8.1",
       "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-0.8.1.tgz",

package.json

@@ -34,11 +34,13 @@
     "@istanbuljs/nyc-config-typescript": "^1.0.1",
     "@types/mocha": "^8.2.2",
     "@types/node": "^15.6.1",
+    "@types/sinon": "^10.0.2",
     "@types/tcp-port-used": "^1.0.0",
     "@types/which": "^2.0.0",
     "@types/yallist": "^4.0.0",
     "mocha": "^8.4.0",
     "nyc": "^15.1.0",
+    "sinon": "^11.1.1",
     "source-map-support": "^0.5.19",
     "tcp-port-used": "^1.0.2",
     "ts-node": "^10.0.0",