Ported test suite: ignore-unknown

- Using --write and --list-different together is forbidden in v4, the --list-different flag is unnecessary when using --write

Author: 43081j

test/__fixtures__/ignore-unknown/.prettierignore

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+ignored.js

test/__fixtures__/ignore-unknown/.prettierrc

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+{
+  "overrides": [
+    {
+      "files": "*.as-js-file",
+      "options": {
+        "parser": "babel"
+      }
+    }
+  ]
+}

test/__fixtures__/ignore-unknown/ignored.js

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+const foo=        "bar";

test/__fixtures__/ignore-unknown/javascript.js

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+const foo=        "bar";

test/__fixtures__/ignore-unknown/override.as-js-file

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+PRETTIER

test/__fixtures__/ignore-unknown/unkown-file-extension.unknown

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+PRETTIER

test/__fixtures__/ignore-unknown/unkown-filename

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+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`Ignored file (stderr) 1`] = `""`;
+
+exports[`Ignored file (stdout) 1`] = `""`;
+
+exports[`Ignored file (write) 1`] = `[]`;
+
+exports[`None exist file (stderr) 1`] = `"[error] No files matching the given patterns were found"`;
+
+exports[`None exist file (stdout) 1`] = `""`;
+
+exports[`None exist file (write) 1`] = `[]`;
+
+exports[`Not matching pattern (stderr) 1`] = `"[error] No files matching the given patterns were found"`;
+
+exports[`Not matching pattern (stdout) 1`] = `""`;
+
+exports[`Not matching pattern (write) 1`] = `[]`;
+
+exports[`ignore-unknown alias (stdout) 1`] = `
+"javascript.js
+override.as-js-file"
+`;
+
+exports[`ignore-unknown check (stderr) 1`] = `
+"[warn] javascript.js
+[warn] override.as-js-file
+[warn] Code style issues found in 2 files. Run Prettier with --write to fix."
+`;
+
+exports[`ignore-unknown check (stdout) 1`] = `"Checking formatting..."`;
+
+exports[`ignore-unknown check (write) 1`] = `[]`;
+
+exports[`ignore-unknown dir (stdout) 1`] = `
+"javascript.js
+override.as-js-file"
+`;
+
+exports[`ignore-unknown pattern (stdout) 1`] = `
+"javascript.js
+override.as-js-file"
+`;

test/__tests__/__snapshots__/ignore-unknown.js.snap

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+import { runCli } from "../utils";
+
+describe("ignore-unknown dir", () => {
+  runCli("ignore-unknown", [
+    ".",
+    "--ignore-unknown",
+    "--list-different",
+  ]).test({
+    status: "non-zero",
+    stderr: "",
+    write: [],
+  });
+});
+
+describe("ignore-unknown alias", () => {
+  runCli("ignore-unknown", [".", "-u", "--list-different"]).test({
+    status: "non-zero",
+    stderr: "",
+    write: [],
+  });
+});
+
+describe("ignore-unknown pattern", () => {
+  runCli("ignore-unknown", [
+    "*",
+    "--ignore-unknown",
+    "--list-different",
+  ]).test({
+    status: "non-zero",
+    stderr: "",
+    write: [],
+  });
+});
+
+describe("ignore-unknown check", () => {
+  runCli("ignore-unknown", [".", "--ignore-unknown", "--check"]).test({
+    status: 1,
+  });
+});
+
+describe("None exist file", () => {
+  runCli("ignore-unknown", ["non-exist-file", "--ignore-unknown"]).test({
+    status: 1,
+  });
+});
+
+describe("Not matching pattern", () => {
+  runCli("ignore-unknown", [
+    "*.non-exist-pattern",
+    "--ignore-unknown",
+  ]).test({
+    status: 1,
+  });
+});
+
+describe("Ignored file", () => {
+  runCli("ignore-unknown", ["ignored.js", "--ignore-unknown"]).test({
+    status: 0,
+  });
+});