test: add tests

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---

Author: kgryte

lib/node_modules/@stdlib/ndarray/base/vind2bind/test/test.js

@@ -302,6 +302,84 @@ tape( 'the function converts a view linear index to a linear index in an underly
 	t.end();
 });
 
+tape( 'the function converts a view linear index to a linear index in an underlying data buffer (order=row-major, permuted)', function test( t ) {
+	var strides;
+	var offset;
+	var order;
+	var shape;
+	var idx;
+
+	shape = [ 2, 2, 2 ];
+	order = 'row-major';
+	strides = [ 1, 4, 2 ]; // normal: [ 4, 2, 1 ]
+	offset = 0;
+
+	idx = vind2bind( shape, strides, offset, order, 0, 'throw' );
+	t.strictEqual( idx, 0, 'returns expected value' );
+
+	idx = vind2bind( shape, strides, offset, order, 1, 'throw' );
+	t.strictEqual( idx, 2, 'returns expected value' );
+
+	idx = vind2bind( shape, strides, offset, order, 2, 'throw' );
+	t.strictEqual( idx, 4, 'returns expected value' );
+
+	idx = vind2bind( shape, strides, offset, order, 3, 'throw' );
+	t.strictEqual( idx, 6, 'returns expected value' );
+
+	idx = vind2bind( shape, strides, offset, order, 4, 'throw' );
+	t.strictEqual( idx, 1, 'returns expected value' );
+
+	idx = vind2bind( shape, strides, offset, order, 5, 'throw' );
+	t.strictEqual( idx, 3, 'returns expected value' );
+
+	idx = vind2bind( shape, strides, offset, order, 6, 'throw' );
+	t.strictEqual( idx, 5, 'returns expected value' );
+
+	idx = vind2bind( shape, strides, offset, order, 7, 'throw' );
+	t.strictEqual( idx, 7, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'the function converts a view linear index to a linear index in an underlying data buffer (order=column-major, permuted)', function test( t ) {
+	var strides;
+	var offset;
+	var order;
+	var shape;
+	var idx;
+
+	shape = [ 2, 2, 2 ];
+	order = 'column-major';
+	strides = [ 2, 4, 1 ]; // normal: [ 1, 2, 4 ]
+	offset = 0;
+
+	idx = vind2bind( shape, strides, offset, order, 0, 'throw' );
+	t.strictEqual( idx, 0, 'returns expected value' );
+
+	idx = vind2bind( shape, strides, offset, order, 1, 'throw' );
+	t.strictEqual( idx, 2, 'returns expected value' );
+
+	idx = vind2bind( shape, strides, offset, order, 2, 'throw' );
+	t.strictEqual( idx, 4, 'returns expected value' );
+
+	idx = vind2bind( shape, strides, offset, order, 3, 'throw' );
+	t.strictEqual( idx, 6, 'returns expected value' );
+
+	idx = vind2bind( shape, strides, offset, order, 4, 'throw' );
+	t.strictEqual( idx, 1, 'returns expected value' );
+
+	idx = vind2bind( shape, strides, offset, order, 5, 'throw' );
+	t.strictEqual( idx, 3, 'returns expected value' );
+
+	idx = vind2bind( shape, strides, offset, order, 6, 'throw' );
+	t.strictEqual( idx, 5, 'returns expected value' );
+
+	idx = vind2bind( shape, strides, offset, order, 7, 'throw' );
+	t.strictEqual( idx, 7, 'returns expected value' );
+
+	t.end();
+});
+
 tape( 'if the `mode` is `throw`, the function throws if provided a linear index which exceeds array dimensions (order=row-major)', function test( t ) {
 	var strides;
 	var offset;