💥Update node/no-unsupported-features/node-builtins to recognize new buffer features (#263)

Author: sosukesuzuki

lib/rules/no-unsupported-features/node-builtins.js

@@ -52,6 +52,7 @@ const trackMap = {
             kMaxLength: { [READ]: { supported: "3.0.0" } },
             transcode: { [READ]: { supported: "7.1.0" } },
             constants: { [READ]: { supported: "8.2.0" } },
+            Blob: { [READ]: { supported: null, experimental: "15.7.0" } },
         },
         child_process: {
             ChildProcess: { [READ]: { supported: "2.2.0" } },

tests/lib/rules/no-unsupported-features/node-builtins.js

@@ -959,6 +959,14 @@ new RuleTester({
                         { version: "7.0.9", ignores: ["buffer.transcode"] },
                     ],
                 },
+                {
+                    code: "const { Blob } = require('buffer'); new Blob();",
+                    options: [{ version: "15.7.0", ignores: ["buffer.Blob"] }],
+                },
+                {
+                    code: "import buffer from 'buffer'; new buffer.Blob();",
+                    options: [{ version: "15.7.0", ignores: ["buffer.Blob"] }],
+                },
             ],
             invalid: [
                 {
@@ -1172,6 +1180,34 @@ new RuleTester({
                         },
                     ],
                 },
+                {
+                    code: "const { Blob } = require('buffer'); new Blob();",
+                    options: [{ version: "15.7.0" }],
+                    errors: [
+                        {
+                            messageId: "unsupported",
+                            data: {
+                                name: "buffer.Blob",
+                                supported: "(none yet)",
+                                version: "15.7.0",
+                            },
+                        },
+                    ],
+                },
+                {
+                    code: "import buffer from 'buffer'; new buffer.Blob();",
+                    options: [{ version: "15.7.0" }],
+                    errors: [
+                        {
+                            messageId: "unsupported",
+                            data: {
+                                name: "buffer.Blob",
+                                supported: "(none yet)",
+                                version: "15.7.0",
+                            },
+                        },
+                    ],
+                },
             ],
         },