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Author: stdlib-bot

CHANGELOG.md

@@ -667,6 +667,7 @@ A total of 37 issues were closed in this release:
 
 <details>
 
+-   [`627daa6`](https://github.com/stdlib-js/stdlib/commit/627daa60f853370c88a35b910e84501704a52675) - **test:** add test cases for DataType instances _(by Athan Reines)_
 -   [`d3a0548`](https://github.com/stdlib-js/stdlib/commit/d3a05480e872e702db968bbe9f4d3610e8aed50d) - **test:** add tests for DataType instances _(by Athan Reines)_
 -   [`d80dfe4`](https://github.com/stdlib-js/stdlib/commit/d80dfe41a1ef87da9fdf8c4cb88c3036134faa2f) - **docs:** improve doctests for ndarray instances in `ndarray/any-by` [(#9399)](https://github.com/stdlib-js/stdlib/pull/9399) _(by Rohit R Bhat, Athan Reines)_
 -   [`45264d0`](https://github.com/stdlib-js/stdlib/commit/45264d0387509a18856c21c332349f16c8a81086) - **docs:** improve doctests for ndarray instances in `ndarray/some` [(#9388)](https://github.com/stdlib-js/stdlib/pull/9388) _(by kaushal-kumar-it, Athan Reines)_

base/dtypes2signatures/test/test.js

@@ -21,6 +21,8 @@
 // MODULES //
 
 var tape = require( 'tape' );
+var structFactory = require( '@stdlib/dstructs/struct' );
+var DataType = require( './../../../dtype-ctor' );
 var dtypes2signatures = require( './../lib' );
 
 
@@ -454,3 +456,47 @@ tape( 'the function transforms a list of array argument data types into a list o
 	t.deepEqual( actual, expected, 'returns expected value' );
 	t.end();
 });
+
+tape( 'the function transforms a list of array argument data types into a list of signatures (2 in, 1 out, data type instances)', function test( t ) {
+	var expected;
+	var actual;
+	var dtypes;
+
+	dtypes = [ new DataType( 'float64' ), new DataType( 'float64' ), new DataType( 'generic' ) ];
+	expected = [ '(float64, float64) => (generic)' ];
+
+	actual = dtypes2signatures( dtypes, 2, 1 );
+
+	t.deepEqual( actual, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function transforms a list of array argument data types into a list of signatures (1 in, 1 out, structs)', function test( t ) {
+	var expected;
+	var schemas;
+	var actual;
+	var dtypes;
+
+	schemas = [
+		[
+			{
+				'name': 'foo',
+				'type': 'float64'
+			}
+		],
+		[
+			{
+				'name': 'foo',
+				'type': 'float32'
+			}
+		]
+	];
+
+	dtypes = [ structFactory( schemas[ 0 ] ), structFactory( schemas[ 1 ] ) ];
+	expected = [ '(|<float64>[0,8]|) => (|<float32>[0,4]|)' ];
+
+	actual = dtypes2signatures( dtypes, 1, 1 );
+
+	t.deepEqual( actual, expected, 'returns expected value' );
+	t.end();
+});