Add test for help output

czosel · czosel · commit 763eaa40187b · 2018-02-23T09:44:14.000+01:00
diff --git a/tests_integration/__tests__/__snapshots__/early-exit.js.snap b/tests_integration/__tests__/__snapshots__/early-exit.js.snap
@@ -514,6 +514,8 @@ exports[`show detailed usage with --help write (stdout) 1`] = `
 
 exports[`show detailed usage with --help write (write) 1`] = `Array []`;
 
+exports[`show detailed usage with plugin options (write) 1`] = `Array []`;
+
 exports[`show usage with --help (stderr) 1`] = `""`;
 
 exports[`show usage with --help (stdout) 1`] = `
diff --git a/tests_integration/__tests__/early-exit.js b/tests_integration/__tests__/early-exit.js
@@ -26,6 +26,26 @@ describe(`show detailed usage with --help l (alias)`, () => {
   });
 });
 
+describe(`show detailed usage with plugin options`, () => {
+  runPrettier("cli", [
+    "--help",
+    "tab-width",
+    "--plugin=../plugins/automatic/node_modules/prettier-plugin-bar",
+    "--parser=bar"
+  ]).test({
+    status: 0,
+    stdout: `--tab-width <int>
+
+  Number of spaces per indentation level.
+
+Default: 2
+Plugin defaults:
+* ../plugins/automatic/node_modules/prettier-plugin-bar: 4
+`,
+    stderr: ""
+  });
+});
+
 commonUtil
   .arrayify(
     Object.assign(
diff --git a/tests_integration/plugins/automatic/node_modules/prettier-plugin-bar/index.js b/tests_integration/plugins/automatic/node_modules/prettier-plugin-bar/index.js
