From 85a4769fc7ea5d1beb9b2850732db7fe52f5a877 Mon Sep 17 00:00:00 2001
From: Dimitri Benin <dimitri.benin@gmail.com>
Date: Thu, 13 Dec 2018 23:51:31 +0100
Subject: [PATCH] Add types for ensure-error

---
 types/ensure-error/ensure-error-tests.ts |  9 +++++++++
 types/ensure-error/index.d.ts            | 15 +++++++++++++++
 types/ensure-error/tsconfig.json         | 23 +++++++++++++++++++++++
 types/ensure-error/tslint.json           |  1 +
 4 files changed, 48 insertions(+)
 create mode 100644 types/ensure-error/ensure-error-tests.ts
 create mode 100644 types/ensure-error/index.d.ts
 create mode 100644 types/ensure-error/tsconfig.json
 create mode 100644 types/ensure-error/tslint.json

diff --git a/types/ensure-error/ensure-error-tests.ts b/types/ensure-error/ensure-error-tests.ts
new file mode 100644
index 0000000000..fbc5e85d23
--- /dev/null
+++ b/types/ensure-error/ensure-error-tests.ts
@@ -0,0 +1,9 @@
+import ensureError = require('ensure-error');
+
+const error = new TypeError('🦄');
+
+// $ExpectType TypeError
+ensureError(error);
+
+// $ExpectType NonError
+ensureError(10);
diff --git a/types/ensure-error/index.d.ts b/types/ensure-error/index.d.ts
new file mode 100644
index 0000000000..e6bc2e5a94
--- /dev/null
+++ b/types/ensure-error/index.d.ts
@@ -0,0 +1,15 @@
+// Type definitions for ensure-error 1.0
+// Project: https://github.com/sindresorhus/ensure-error#readme
+// Definitions by: BendingBender <https://github.com/BendingBender>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.8
+
+export = ensureError;
+
+declare function ensureError<T>(input: T): T extends Error ? T : ensureError.NonError;
+
+declare namespace ensureError {
+    interface NonError extends Error {
+        name: 'NonError';
+    }
+}
diff --git a/types/ensure-error/tsconfig.json b/types/ensure-error/tsconfig.json
new file mode 100644
index 0000000000..687a9dfd1a
--- /dev/null
+++ b/types/ensure-error/tsconfig.json
@@ -0,0 +1,23 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "ensure-error-tests.ts"
+    ]
+}
diff --git a/types/ensure-error/tslint.json b/types/ensure-error/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/ensure-error/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }