test: add tests and its fixtures

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type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
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  - task: lint_filenames
    status: passed
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    status: passed
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    status: na
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  - task: lint_javascript_tests
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  - task: lint_c_tests_fixtures
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---

Author: anandkaranubc

lib/node_modules/@stdlib/math/base/special/sincosd/test/fixtures/julia/huge_negative.json

@@ -0,0 +1,87 @@
+#!/usr/bin/env julia
+#
+# @license Apache-2.0
+#
+# Copyright (c) 2025 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import JSON
+
+"""
+	gen( domain, filepath )
+
+Generate fixture data and write to file.
+
+# Arguments
+
+* `domain`: domain
+* `filepath::AbstractString`: filepath of the output file
+
+# Examples
+
+``` julia
+julia> x = range( -1000.0, stop = 1000.0, length = 2001 );
+julia> gen( x, \"./data.json\" );
+```
+"""
+function gen( domain, filepath )
+	x = collect( domain );
+	s = sind.( x );
+	c = cosd.( x );
+	data = Dict([
+		("x", x),
+		("sine", s),
+		("cosine", c)
+	]);
+	outfile = open( filepath, "w" );
+	write( outfile, JSON.json(data) );
+	write( outfile, "\n" );
+	close( outfile );
+end
+
+# Get the filename:
+file = @__FILE__;
+
+# Extract the directory in which this file resides:
+dir = dirname( file );
+
+# Negative medium sized values:
+x = range( -256.0*180.0, stop = 0.0, length = 4000 );
+out = joinpath( dir, "medium_negative.json" );
+gen( x, out );
+
+# Positive medium sized values:
+x = range( 0.0, stop = 256.0*180.0, length = 4000 );
+out = joinpath( dir, "medium_positive.json" );
+gen( x, out );
+
+# Negative large values:
+x = range( -2.0^20*(180.0/2.0), stop = -2.0^60*(180.0/2.0), length = 4000 );
+out = joinpath( dir, "large_negative.json" );
+gen( x, out );
+
+# Positive large values:
+x = range( 2.0^20*(180.0/2.0), stop = 2.0^60*(180.0/2.0), length = 4000 );
+out = joinpath( dir, "large_positive.json" );
+gen( x, out );
+
+# Negative huge values:
+x = range( -2.0^60*(180.0/2.0), stop = -2.0^1000*(180.0/2.0), length = 4000 );
+out = joinpath( dir, "huge_negative.json" );
+gen( x, out );
+
+# Positive huge values:
+x = range( 2.0^60*(180.0/2.0), stop = 2.0^1000*(180.0/2.0), length = 4000 );
+out = joinpath( dir, "huge_positive.json" );
+gen( x, out );