From ed179f44c69b3d9b7a27597a20094bf0e0070a90 Mon Sep 17 00:00:00 2001
From: Guillaume ARM <trapcodien@hotmail.fr>
Date: Wed, 17 Jan 2018 16:43:48 +0100
Subject: [PATCH] feat: add isNonEmptyArray

Ref #279
---
 src/index.d.ts          |  5 +++++
 src/index.js            |  1 +
 src/isNonEmptyArray.js  | 29 +++++++++++++++++++++++++++++
 test/isNonEmptyArray.js | 23 +++++++++++++++++++++++
 4 files changed, 58 insertions(+)
 create mode 100644 src/isNonEmptyArray.js
 create mode 100644 test/isNonEmptyArray.js

diff --git a/src/index.d.ts b/src/index.d.ts
index 38e9c2c43c..49cbf007f8 100644
--- a/src/index.d.ts
+++ b/src/index.d.ts
@@ -53,6 +53,11 @@ declare namespace RamdaAdjunct {
          */
         isNotArray(val: any): boolean;
 
+        /**
+         * Checks if input value is a non empty `Array`.
+         */
+        isNonEmptyArray(val: any): val is Array<any>;
+
         /**
          * Checks if input value is complement of `Boolean`.
          */
diff --git a/src/index.js b/src/index.js
index 0daf9b6afd..b2b2ac2487 100644
--- a/src/index.js
+++ b/src/index.js
@@ -10,6 +10,7 @@ export { default as isNotNull } from './isNotNull';
 export { default as isNotNil } from './isNotNil';
 export { default as isArray } from './isArray';
 export { default as isNotArray } from './isNotArray';
+export { default as isNonEmptyArray } from './isNonEmptyArray';
 export { default as isBoolean } from './isBoolean';
 export { default as isNotBoolean } from './isNotBoolean';
 export { default as isNilOrEmpty } from './isNilOrEmpty';
diff --git a/src/isNonEmptyArray.js b/src/isNonEmptyArray.js
new file mode 100644
index 0000000000..9143df8126
--- /dev/null
+++ b/src/isNonEmptyArray.js
@@ -0,0 +1,29 @@
+import { both } from 'ramda';
+
+import isNotEmpty from './isNotEmpty';
+import isArray from './isArray';
+
+/**
+ * Checks if input value is not an empty `Array`.
+ *
+ * @func isNonEmptyArray
+ * @memberOf RA
+ * @since {@link https://char0n.github.io/ramda-adjunct/2.4.0|v2.4.0}
+ * @category Type
+ * @sig * -> Boolean
+ * @param {*} val The value to test
+ * @return {Boolean}
+ * @see {@link RA.isEmptyArray|isEmptyArray}
+ * @example
+ *
+ * RA.isNonEmptyArray([42]); // => true
+ * RA.isNonEmptyArray([]); // => false
+ * RA.isNonEmptyArray({}); // => false
+ * RA.isNonEmptyArray(null); // => false
+ * RA.isNonEmptyArray(undefined); // => false
+ * RA.isNonEmptyArray(42); // => false
+ * RA.isNonEmptyArray('42'); // => false
+ */
+const isNonEmptyArray = both(isNotEmpty, isArray);
+
+export default isNonEmptyArray;
diff --git a/test/isNonEmptyArray.js b/test/isNonEmptyArray.js
new file mode 100644
index 0000000000..a106d9ee68
--- /dev/null
+++ b/test/isNonEmptyArray.js
@@ -0,0 +1,23 @@
+import * as RA from '../src/index';
+import eq from './shared/eq';
+
+describe('isNonEmptyArray', function() {
+  it('tests a value to be a non empty `Array`', function() {
+    eq(RA.isNonEmptyArray([42]), true);
+    eq(RA.isNonEmptyArray(new Array('content')), true);
+
+    eq(RA.isNonEmptyArray([]), false);
+    eq(RA.isNonEmptyArray(new Array()), false);
+    eq(RA.isNonEmptyArray(new Array(42)), false);
+    eq(RA.isNonEmptyArray(Array.prototype), false);
+    eq(RA.isNonEmptyArray(void 0), false);
+    eq(RA.isNonEmptyArray({}), false);
+    eq(RA.isNonEmptyArray(null), false);
+    eq(RA.isNonEmptyArray(undefined), false);
+    eq(RA.isNonEmptyArray(42), false);
+    eq(RA.isNonEmptyArray('Array'), false);
+    eq(RA.isNonEmptyArray(true), false);
+    eq(RA.isNonEmptyArray(false), false);
+    eq(RA.isNonEmptyArray({ __proto__: Array.prototype }), false);
+  });
+});