test: add tests to achieve full coverage in cinv and cinvf

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
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---

Author: Planeshifter

lib/node_modules/@stdlib/math/base/special/cinv/test/test.js

@@ -23,6 +23,7 @@
 // MODULES //
 
 var tape = require( 'tape' );
+var isNumber = require( '@stdlib/assert/is-number' ).isPrimitive;
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var abs = require( '@stdlib/math/base/special/abs' );
 var EPS = require( '@stdlib/constants/float64/eps' );
@@ -426,6 +427,29 @@ tape( 'the function may overflow', function test( t ) {
 	t.end();
 });
 
+tape( 'the function handles very large values (near FLOAT64_BIGGEST)', function test( t ) {
+	var v;
+
+	// Test values that trigger the LARGE_THRESHOLD scaling (FLOAT64_BIGGEST * 0.5)
+	v = cinv( new Complex128( 1.0e308, 1.0e308 ) );
+	t.strictEqual( isNumber( real( v ) ), true, 'returns expected value' );
+	t.strictEqual( isNumber( imag( v ) ), true, 'returns expected value' );
+
+	v = cinv( new Complex128( -1.0e308, 1.0e308 ) );
+	t.strictEqual( isNumber( real( v ) ), true, 'returns expected value' );
+	t.strictEqual( isNumber( imag( v ) ), true, 'returns expected value' );
+
+	v = cinv( new Complex128( 1.0e308, -1.0e308 ) );
+	t.strictEqual( isNumber( real( v ) ), true, 'returns expected value' );
+	t.strictEqual( isNumber( imag( v ) ), true, 'returns expected value' );
+
+	v = cinv( new Complex128( 8.0e307, 0.0 ) );
+	t.strictEqual( isNumber( real( v ) ), true, 'returns expected value' );
+	t.strictEqual( isNumber( imag( v ) ), true, 'returns expected value' );
+
+	t.end();
+});
+
 tape( 'if a real or imaginary component is `NaN`, all components are `NaN`', function test( t ) {
 	var v;
 

lib/node_modules/@stdlib/math/base/special/cinvf/test/test.js

@@ -23,6 +23,7 @@
 // MODULES //
 
 var tape = require( 'tape' );
+var isNumber = require( '@stdlib/assert/is-number' ).isPrimitive;
 var isnanf = require( '@stdlib/math/base/assert/is-nanf' );
 var absf = require( '@stdlib/math/base/special/absf' );
 var EPS = require( '@stdlib/constants/float32/eps' );
@@ -427,6 +428,29 @@ tape( 'the function may overflow', function test( t ) {
 	t.end();
 });
 
+tape( 'the function handles very large values (near FLOAT32_BIGGEST)', function test( t ) {
+	var v;
+
+	// Test values that trigger the LARGE_THRESHOLD scaling (FLOAT32_BIGGEST * 0.5)
+	v = cinvf( new Complex64( 3.0e38, 3.0e38 ) );
+	t.strictEqual( isNumber( realf( v ) ), true, 'returns expected value' );
+	t.strictEqual( isNumber( imagf( v ) ), true, 'returns expected value' );
+
+	v = cinvf( new Complex64( -3.0e38, 3.0e38 ) );
+	t.strictEqual( isNumber( realf( v ) ), true, 'returns expected value' );
+	t.strictEqual( isNumber( imagf( v ) ), true, 'returns expected value' );
+
+	v = cinvf( new Complex64( 3.0e38, -3.0e38 ) );
+	t.strictEqual( isNumber( realf( v ) ), true, 'returns expected value' );
+	t.strictEqual( isNumber( imagf( v ) ), true, 'returns expected value' );
+
+	v = cinvf( new Complex64( 2.0e38, 0.0 ) );
+	t.strictEqual( isNumber( realf( v ) ), true, 'returns expected value' );
+	t.strictEqual( isNumber( imagf( v ) ), true, 'returns expected value' );
+
+	t.end();
+});
+
 tape( 'if a real or imaginary component is `NaN`, all components are `NaN`', function test( t ) {
 	var v;