From b196e0efc31907f826711513a694d32733a9fe02 Mon Sep 17 00:00:00 2001
From: isaacs <i@izs.me>
Date: Sat, 15 Sep 2018 17:21:40 -0700
Subject: [PATCH] add tests for old readdir support

---
 test/old-readdir-sync.js | 85 +++++++++++++++++++++++++++++++++++++
 test/old-readdir.js      | 90 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 175 insertions(+)
 create mode 100644 test/old-readdir-sync.js
 create mode 100644 test/old-readdir.js

diff --git a/test/old-readdir-sync.js b/test/old-readdir-sync.js
new file mode 100644
index 0000000..5e883f0
--- /dev/null
+++ b/test/old-readdir-sync.js
@@ -0,0 +1,85 @@
+if (!process.getuid || !process.getgid) {
+  throw new Error("Tests require getuid/getgid support")
+}
+
+const fs = require('fs')
+const readdir = fs.readdir
+fs.readdir = (path, options, cb) => readdir(path, cb || options)
+const readdirSync = fs.readdirSync
+fs.readdirSync = (path, options) => readdirSync(path)
+
+var curUid = +process.getuid()
+, curGid = +process.getgid()
+, chownr = require("../")
+, test = require("tap").test
+, mkdirp = require("mkdirp")
+, rimraf = require("rimraf")
+
+// sniff the 'id' command for other groups that i can legally assign to
+var exec = require("child_process").exec
+, groups
+, dirs = []
+
+exec("id", function (code, output) {
+  if (code) throw new Error("failed to run 'id' command")
+  groups = output.trim().split("=")[3].split(",").map(function (s) {
+    return parseInt(s, 10)
+  }).filter(function (g) {
+    return g !== curGid
+  })
+
+  // console.error([curUid, groups[0]], "uid, gid")
+
+  rimraf("/tmp/chownr", function (er) {
+    if (er) throw er
+    var cnt = 5
+    for (var i = 0; i < 5; i ++) {
+      mkdirp(getDir(), then)
+    }
+    function then (er) {
+      if (er) throw er
+      if (-- cnt === 0) {
+        runTest()
+      }
+    }
+  })
+})
+
+function getDir () {
+  var x = Math.floor(Math.random() * Math.pow(16,4)).toString(16);
+  var y = Math.floor(Math.random() * Math.pow(16,4)).toString(16);
+  var z = Math.floor(Math.random() * Math.pow(16,4)).toString(16);
+  var dir = "/tmp/chownr/" + [x,y,z].join("/")
+  dirs.push(dir)
+  return dir
+}
+
+function runTest () {
+  test("should complete successfully", function (t) {
+    // console.error("calling chownr", curUid, groups[0], typeof curUid, typeof groups[0])
+    chownr.sync("/tmp/chownr", curUid, groups[0])
+    t.end()
+  })
+
+  dirs.forEach(function (dir) {
+    test("verify "+dir, function (t) {
+      fs.stat(dir, function (er, st) {
+        if (er) {
+          t.ifError(er)
+          return t.end()
+        }
+        t.equal(st.uid, curUid, "uid should be " + curUid)
+        t.equal(st.gid, groups[0], "gid should be "+groups[0])
+        t.end()
+      })
+    })
+  })
+
+  test("cleanup", function (t) {
+    rimraf("/tmp/chownr/", function (er) {
+      t.ifError(er)
+      t.end()
+    })
+  })
+}
+
diff --git a/test/old-readdir.js b/test/old-readdir.js
new file mode 100644
index 0000000..a0abc00
--- /dev/null
+++ b/test/old-readdir.js
@@ -0,0 +1,90 @@
+if (!process.getuid || !process.getgid) {
+  throw new Error("Tests require getuid/getgid support")
+}
+
+const fs = require('fs')
+const readdir = fs.readdir
+fs.readdir = (path, options, cb) => readdir(path, cb || options)
+const readdirSync = fs.readdirSync
+fs.readdirSync = (path, options) => readdirSync(path)
+
+var curUid = +process.getuid()
+, curGid = +process.getgid()
+, chownr = require("../")
+, test = require("tap").test
+, mkdirp = require("mkdirp")
+, rimraf = require("rimraf")
+
+// sniff the 'id' command for other groups that i can legally assign to
+var exec = require("child_process").exec
+, groups
+, dirs = []
+
+exec("id", function (code, output) {
+  if (code) throw new Error("failed to run 'id' command")
+  groups = output.trim().split("=")[3].split(",").map(function (s) {
+    return parseInt(s, 10)
+  }).filter(function (g) {
+    return g !== curGid
+  })
+
+  // console.error([curUid, groups[0]], "uid, gid")
+
+  rimraf("/tmp/chownr", function (er) {
+    if (er) throw er
+    var cnt = 5
+    for (var i = 0; i < 5; i ++) {
+      mkdirp(getDir(), then)
+    }
+    function then (er) {
+      if (er) throw er
+      if (-- cnt === 0) {
+        runTest()
+      }
+    }
+  })
+})
+
+function getDir () {
+  var dir = "/tmp/chownr"
+
+  dir += "/" + Math.floor(Math.random() * Math.pow(16,4)).toString(16)
+  dirs.push(dir)
+  dir += "/" + Math.floor(Math.random() * Math.pow(16,4)).toString(16)
+  dirs.push(dir)
+  dir += "/" + Math.floor(Math.random() * Math.pow(16,4)).toString(16)
+  dirs.push(dir)
+  return dir
+}
+
+function runTest () {
+  test("should complete successfully", function (t) {
+    // console.error("calling chownr", curUid, groups[0], typeof curUid, typeof groups[0])
+    chownr("/tmp/chownr", curUid, groups[0], function (er) {
+      t.ifError(er)
+      t.end()
+    })
+  })
+
+  dirs.forEach(function (dir) {
+    test("verify "+dir, function (t) {
+      fs.stat(dir, function (er, st) {
+        if (er) {
+          t.ifError(er)
+          return t.end()
+        }
+        t.equal(st.uid, curUid, "uid should be " + curUid)
+        t.equal(st.gid, groups[0], "gid should be "+groups[0])
+        t.end()
+      })
+    })
+  })
+
+  test("cleanup", function (t) {
+    rimraf("/tmp/chownr/", function (er) {
+      t.ifError(er)
+      t.end()
+    })
+  })
+}
+