test: fix assertions

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
report:
  - task: lint_filenames
    status: passed
  - task: lint_editorconfig
    status: passed
  - task: lint_markdown
    status: na
  - task: lint_package_json
    status: na
  - task: lint_repl_help
    status: na
  - task: lint_javascript_src
    status: na
  - task: lint_javascript_cli
    status: na
  - task: lint_javascript_examples
    status: na
  - task: lint_javascript_tests
    status: passed
  - task: lint_javascript_benchmarks
    status: na
  - task: lint_python
    status: na
  - task: lint_r
    status: na
  - task: lint_c_src
    status: na
  - task: lint_c_examples
    status: na
  - task: lint_c_benchmarks
    status: na
  - task: lint_c_tests_fixtures
    status: na
  - task: lint_shell
    status: na
  - task: lint_typescript_declarations
    status: na
  - task: lint_typescript_tests
    status: na
  - task: lint_license_headers
    status: passed
---

Author: kgryte

lib/node_modules/@stdlib/math/array/tools/unary/test/test.js

@@ -73,7 +73,7 @@ tape( 'the function throws an error if provided a first argument which is not a
 	function badValue( value ) {
 		return function badValue() {
 			var f = new Unary( value, DTYPES, DTYPES, 'same' );
-			if ( typeof f !== 'function' ) {
+			if ( !( f instanceof Unary ) ) {
 				t.fail( 'unexpected return value' );
 			}
 		};
@@ -105,7 +105,7 @@ tape( 'the function throws an error if provided a second argument which is not a
 	function badValue( value ) {
 		return function badValue() {
 			var f = new Unary( abs, value, DTYPES, 'same' );
-			if ( typeof f !== 'function' ) {
+			if ( !( f instanceof Unary ) ) {
 				t.fail( 'unexpected return value' );
 			}
 		};
@@ -137,7 +137,7 @@ tape( 'the function throws an error if provided a third argument which is not a
 	function badValue( value ) {
 		return function badValue() {
 			var f = new Unary( abs, DTYPES, value, 'same' );
-			if ( typeof f !== 'function' ) {
+			if ( !( f instanceof Unary ) ) {
 				t.fail( 'unexpected return value' );
 			}
 		};
@@ -170,7 +170,7 @@ tape( 'the function throws an error if provided a fourth argument which is not a
 	function badValue( value ) {
 		return function badValue() {
 			var f = new Unary( abs, DTYPES, DTYPES, value );
-			if ( typeof f !== 'function' ) {
+			if ( !( f instanceof Unary ) ) {
 				t.fail( 'unexpected return value' );
 			}
 		};