test: update tests

Author: kgryte

lib/node_modules/@stdlib/ndarray/map/test/test.js

@@ -44,7 +44,7 @@ tape( 'main export is a function', function test( t ) {
 	t.end();
 });
 
-tape( 'the function throws an error if provided a first argument having an unrecognized data type', function test( t ) {
+tape( 'the function throws an error if provided a first argument which is not an ndarray', function test( t ) {
 	var values;
 	var i;
 
@@ -68,18 +68,18 @@ tape( 'the function throws an error if provided a first argument having an unrec
 	}
 	t.end();
 
-	function scale( z ) {
-		return z * 10.0;
-	}
-
 	function badValue( value ) {
 		return function badValue() {
 			map( value, scale );
 		};
 	}
+
+	function scale( z ) {
+		return z * 10.0;
+	}
 });
 
-tape( 'the function throws an error if the second argument is not a function', function test( t ) {
+tape( 'the function throws an error if a callback argument which is not a function', function test( t ) {
 	var values;
 	var x;
 	var i;
@@ -108,7 +108,7 @@ tape( 'the function throws an error if the second argument is not a function', f
 	}
 });
 
-tape( 'the function throws an error if third argument is not a function (options)', function test( t ) {
+tape( 'the function throws an error if callback argument which is not a function (options)', function test( t ) {
 	var values;
 	var opts;
 	var x;
@@ -163,32 +163,34 @@ tape( 'the function throws an error if provided an options argument which is not
 	}
 	t.end();
 
-	function scale( z ) {
-		return z * 10.0;
-	}
-
 	function badValue( value ) {
 		return function badValue() {
 			map( x, value, scale );
 		};
 	}
+
+	function scale( z ) {
+		return z * 10.0;
+	}
 });
 
-tape( 'the function throws an error if the provided options argument does not have a `dtype` property', function test( t ) {
+tape( 'the function throws an error if provided an invalid `dtype` option', function test( t ) {
 	var values;
 	var x;
 	var i;
 
 	values = [
-		{
-			'order': 'column-major'
-		},
-		{
-			'shape': [ 3, 1 ]
-		},
-		{
-			'strides': [ 1, 3 ]
-		}
+		'foo',
+		'bar',
+		1,
+		NaN,
+		true,
+		false,
+		void 0,
+		null,
+		[],
+		{},
+		function noop() {}
 	];
 	x = ndarray( 'generic', ones( 4, 'generic' ), [ 2, 2 ], [ 2, 1 ], 0, 'row-major' );
 
@@ -197,15 +199,18 @@ tape( 'the function throws an error if the provided options argument does not ha
 	}
 	t.end();
 
-	function scale( z ) {
-		return z * 10.0;
-	}
-
 	function badValue( value ) {
 		return function badValue() {
-			map( x, value, scale );
+			var opts = {
+				'dtype': value
+			};
+			map( x, opts, scale );
 		};
 	}
+
+	function scale( z ) {
+		return z * 10.0;
+	}
 });
 
 tape( 'the function applies a callback to each indexed element in an input ndarray and returns an output ndarray with mapped values (row-major, contiguous)', function test( t ) {