test: use consistent messages

Signed-off-by: Athan <kgryte@gmail.com>

Author: kgryte

lib/node_modules/@stdlib/stats/base/ndarray/dnanmeanors/test/test.js

@@ -64,7 +64,7 @@ tape( 'the function computes the arithmetic mean (ignoring NaNs)', function test
 	x = new Float64Array( [ 1.0, -2.0, NaN, 2.0 ] );
 
 	v = dnanmeanors( [ vector( x, 4, 1, 0 ) ] );
-	t.strictEqual( v, 1.0/3.0, 'returns expected mean' );
+	t.strictEqual( v, 1.0/3.0, 'returns expected value' );
 
 	x = new Float64Array( [ 1.0, -2.0, -4.0, 5.0, NaN, 0.0, 3.0 ] );
 	v = dnanmeanors( [ vector( x, 7, 1, 0 ) ] );
@@ -82,7 +82,7 @@ tape( 'when provided an empty input ndarray, the function returns NaN', function
 
 	x = new Float64Array( [] );
 	v = dnanmeanors( [ vector( x, 0, 1, 0 ) ] );
-	t.strictEqual( isnan( v ), true, 'returns NaN' );
+	t.strictEqual( isnan( v ), true, 'returns expected value' );
 	t.end();
 });
 
@@ -92,7 +92,7 @@ tape( 'when provided an input ndarray containing only NaN values, the function r
 
 	x = new Float64Array( [ NaN, NaN, NaN ] );
 	v = dnanmeanors( [ vector( x, 3, 1, 0 ) ] );
-	t.strictEqual( isnan( v ), true, 'returns NaN' );
+	t.strictEqual( isnan( v ), true, 'returns expected value' );
 	t.end();
 });