add integration test for scripts deletion

Author: David Sheldrick

src/__tests__/__snapshots__/deleteScripts.test.ts.snap

@@ -0,0 +1,28 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`Test delete-scripts: a patch file got produced 1`] = `
+"SNAPSHOT: a patch file got produced
+diff --git a/node_modules/left-pad/index.js b/node_modules/left-pad/index.js
+index e90aec3..f2b8b0a 100644
+--- a/node_modules/left-pad/index.js
++++ b/node_modules/left-pad/index.js
+@@ -4,7 +4,7 @@
+      * To Public License, Version 2, as published by Sam Hocevar. See
+      * http://www.wtfpl.net/ for more details. */
+ 'use strict';
+-module.exports = leftPad;
++module.exports = patchPackage;
+ 
+ var cache = [
+   '',
+@@ -19,7 +19,7 @@ var cache = [
+   '         '
+ ];
+ 
+-function leftPad (str, len, ch) {
++function patchPackage (str, len, ch) {
+   // convert \`str\` to a \`string\`
+   str = str + '';
+   // \`len\` is the \`pad\`'s length now
+END SNAPSHOT"
+`;

src/__tests__/deleteScripts.test.ts

@@ -0,0 +1,3 @@
+import { runShellTest } from "./shellTests"
+
+runShellTest("delete-scripts")

test/delete-scripts/delete-scripts.sh

@@ -0,0 +1,21 @@
+set -e
+
+echo 'install without error because package.json is sanitized'
+yarn add $1
+
+echo 'unsnitize package.json'
+replace '<<PREINSTALL>>' preinstall package.json
+
+echo 'install fails because preinstall hook is bad'
+if yarn; then
+  exit 1
+fi
+
+replace leftPad patchPackage node_modules/left-pad/index.js
+
+echo 'but patch-package still works because it ignores scripts'
+patch-package left-pad
+
+echo "SNAPSHOT: a patch file got produced"
+cat patches/left-pad*.patch
+echo "END SNAPSHOT"

test/delete-scripts/package.json

@@ -0,0 +1,13 @@
+{
+  "name": "delete-scripts",
+  "version": "1.0.0",
+  "main": "index.js",
+  "license": "MIT",
+  "scripts": {
+    "<<PREINSTALL>>": "exit 1"
+  },
+  "dependencies": {
+    "left-pad": "^1.3.0",
+    "replace": "^1.0.0"
+  }
+}

test/delete-scripts/yarn.lock

@@ -0,0 +1,71 @@
+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
+
+
+ansi-styles@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-1.0.0.tgz#cb102df1c56f5123eab8b67cd7b98027a0279178"
+
+balanced-match@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.0.tgz#89b4d199ab2bee49de164ea02b89ce462d71b767"
+
+brace-expansion@^1.1.7:
+  version "1.1.11"
+  resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.11.tgz#3c7fcbf529d87226f3d2f52b966ff5271eb441dd"
+  dependencies:
+    balanced-match "^1.0.0"
+    concat-map "0.0.1"
+
+chalk@~0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/chalk/-/chalk-0.4.0.tgz#5199a3ddcd0c1efe23bc08c1b027b06176e0c64f"
+  dependencies:
+    ansi-styles "~1.0.0"
+    has-color "~0.1.0"
+    strip-ansi "~0.1.0"
+
+colors@1.2.4:
+  version "1.2.4"
+  resolved "https://registry.yarnpkg.com/colors/-/colors-1.2.4.tgz#e0cb41d3e4b20806b3bfc27f4559f01b94bc2f7c"
+
+concat-map@0.0.1:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
+
+has-color@~0.1.0:
+  version "0.1.7"
+  resolved "https://registry.yarnpkg.com/has-color/-/has-color-0.1.7.tgz#67144a5260c34fc3cca677d041daf52fe7b78b2f"
+
+left-pad@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/left-pad/-/left-pad-1.3.0.tgz#5b8a3a7765dfe001261dde915589e782f8c94d1e"
+
+minimatch@3.0.4:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.4.tgz#5166e286457f03306064be5497e8dbb0c3d32083"
+  dependencies:
+    brace-expansion "^1.1.7"
+
+nomnom@1.8.1:
+  version "1.8.1"
+  resolved "https://registry.yarnpkg.com/nomnom/-/nomnom-1.8.1.tgz#2151f722472ba79e50a76fc125bb8c8f2e4dc2a7"
+  dependencies:
+    chalk "~0.4.0"
+    underscore "~1.6.0"
+
+replace@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/replace/-/replace-1.0.0.tgz#da5235cc6d64d5c3a74e4ef73b487aad0f79a74b"
+  dependencies:
+    colors "1.2.4"
+    minimatch "3.0.4"
+    nomnom "1.8.1"
+
+strip-ansi@~0.1.0:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-0.1.1.tgz#39e8a98d044d150660abe4a6808acf70bb7bc991"
+
+underscore@~1.6.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.6.0.tgz#8b38b10cacdef63337b8b24e4ff86d45aea529a8"