test: ztest: Add math basic trigonometry unit tests converted from CMock

test/ztest/unit/math/basic/trigonometry/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.20.0)
+
+find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
+project(test_math_trigonometry)
+
+set(SOF_ROOT "${PROJECT_SOURCE_DIR}/../../../../../..")
+
+target_include_directories(app PRIVATE
+	${SOF_ROOT}/zephyr/include
+	${SOF_ROOT}/src/include
+)
+
+# Define SOF-specific configurations for unit testing
+target_compile_definitions(app PRIVATE
+	-DCONFIG_SOF_LOG_LEVEL=CONFIG_LOG_DEFAULT_LEVEL
+	-DCONFIG_ZEPHYR_POSIX=1
+	-DCONFIG_LIBRARY=1
+	-DUNIT_TEST=1
+)
+
+target_sources(app PRIVATE
+	trig_test.c
+	${SOF_ROOT}/src/math/trig.c
+	${SOF_ROOT}/src/math/lut_trig.c
+)
+
+# Link math library for standard math functions
+target_link_libraries(app PRIVATE m)

test/ztest/unit/math/basic/trigonometry/prj.conf

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+CONFIG_ZTEST=y

test/ztest/unit/math/basic/trigonometry/testcase.yaml

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+# SPDX-License-Identifier: BSD-3-Clause
+#
+# Copyright(c) 2025 Intel Corporation. All rights reserved.
+#
+# Math basic trigonometry unit tests converted from CMock to Ztest
+#
+# These contents may have been developed with support from one or more Intel-operated
+# generative artificial intelligence solutions.
+#
+
+common:
+  tags:
+    - SOF
+    - unit_test
+    - math
+    - trigonometry
+  integration_platforms:
+    - native_sim
+  arch_exclude: xtensa  # Test is for host builds only
+
+tests:
+  sof.unit.math.trigonometry:
+    platform_allow:
+      - native_sim