Ported test suite: plugin-flush-line-suffix

test/__fixtures__/plugin-flush-line-suffix/file.foo

@@ -0,0 +1 @@
+contents

test/__fixtures__/plugin-flush-line-suffix/plugin.cjs

@@ -0,0 +1,25 @@
+"use strict";
+
+module.exports = {
+  languages: [
+    {
+      name: "foo",
+      parsers: ["foo-parser"],
+      extensions: [".foo"],
+    },
+  ],
+  parsers: {
+    "foo-parser": {
+      parse: (text) => ({ text }),
+      astFormat: "foo-ast",
+    },
+  },
+  printers: {
+    "foo-ast": {
+      print(path) {
+        // TODO[@fisker]: Use `lineSuffix` after we support ESM plugin
+        return { type: "line-suffix", contents: path.getValue().text.trim() };
+      },
+    },
+  },
+};

test/__tests__/plugin-flush-line-suffix.js

@@ -0,0 +1,15 @@
+import { runCli } from "../utils";
+
+describe("flush all line-suffix content", () => {
+  runCli("plugin-flush-line-suffix", [
+    "*.foo",
+    "--plugin=./plugin.cjs"
+  ], {
+    ignoreLineEndings: true,
+  }).test({
+    stdout: "contents",
+    stderr: "",
+    status: 0,
+    write: [],
+  });
+});