test: add missing tests

---
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: headlessNode

lib/node_modules/@stdlib/blas/ext/find-index/test/test.assign.js

@@ -325,10 +325,10 @@ tape( 'the function throws an error if provided a callback which is not a functi
 	var x;
 	var y;
 
-	x = zeros( [], {
+	x = zeros( [ 2, 2 ], {
 		'dtype': 'generic'
 	});
-	x = zeros( [], {
+	y = zeros( [], {
 		'dtype': 'int32'
 	});
 
@@ -361,10 +361,10 @@ tape( 'the function throws an error if provided a callback which is not a functi
 	var x;
 	var y;
 
-	x = zeros( [], {
+	x = zeros( [ 2, 2 ], {
 		'dtype': 'generic'
 	});
-	x = zeros( [], {
+	y = zeros( [], {
 		'dtype': 'int32'
 	});
 
@@ -397,7 +397,7 @@ tape( 'the function throws an error if provided a callback which is not a functi
 	var x;
 	var y;
 
-	x = zeros( [], {
+	x = zeros( [ 2, 2 ], {
 		'dtype': 'generic'
 	});
 	y = zeros( [], {
@@ -433,10 +433,10 @@ tape( 'the function throws an error if provided a callback which is not a functi
 	var x;
 	var y;
 
-	x = zeros( [], {
+	x = zeros( [ 2, 2 ], {
 		'dtype': 'generic'
 	});
-	x = zeros( [], {
+	y = zeros( [], {
 		'dtype': 'int32'
 	});