Ported test suite: ignore-vcs-files

- Files inside version control directores are no longer ignored if explicitly provided, but they still are if discovered, by default.

test/__fixtures__/ignore-vcs-files/.hg/file.js

@@ -0,0 +1 @@
+'use strict';

test/__fixtures__/ignore-vcs-files/.svn/file.js

@@ -0,0 +1,2 @@
+/* eslint-disable */
+'use strict';

test/__fixtures__/ignore-vcs-files/file.js

@@ -0,0 +1 @@
+'use strict';

test/__tests__/__snapshots__/ignore-vcs-files.js.snap

@@ -0,0 +1,17 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`does not ignore files in version control systems, if manually provided (stderr) 1`] = `""`;
+
+exports[`does not ignore files in version control systems, if manually provided (stdout) 1`] = `
+".hg/file.js
+.svn/file.js
+file.js"
+`;
+
+exports[`does not ignore files in version control systems, if manually provided (write) 1`] = `[]`;
+
+exports[`ignores files in version control systems, if discovered (stderr) 1`] = `""`;
+
+exports[`ignores files in version control systems, if discovered (stdout) 1`] = `"file.js"`;
+
+exports[`ignores files in version control systems, if discovered (write) 1`] = `[]`;

test/__tests__/ignore-vcs-files.js

@@ -0,0 +1,21 @@
+import { runCli } from "../utils";
+
+describe("ignores files in version control systems, if discovered", () => {
+  runCli("ignore-vcs-files", [
+    "**/file.js",
+    "-l",
+  ]).test({
+    status: 1,
+  });
+});
+
+describe("does not ignore files in version control systems, if manually provided", () => {
+  runCli("ignore-vcs-files", [
+    ".svn/file.js",
+    ".hg/file.js",
+    "file.js",
+    "-l",
+  ]).test({
+    status: 1,
+  });
+});