69 lines
1.7 KiB
C++
69 lines
1.7 KiB
C++
// SPDX-License-Identifier: Apache-2.0
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// ----------------------------------------------------------------------------
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// Copyright 2021 Arm Limited
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not
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// use this file except in compliance with the License. You may obtain a copy
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// of the License at:
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations
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// under the License.
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// ----------------------------------------------------------------------------
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/**
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* @brief Unit tests for the software half-float library.
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*/
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#include "gtest/gtest.h"
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#include "../astcenc_internal.h"
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namespace astcenc
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{
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#if (ASTCENC_F16C == 0) && (ASTCENC_NEON == 0)
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/** @brief Test normal numbers. */
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TEST(softfloat, FP16NormalNumbers)
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{
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float result = sf16_to_float((15 << 10) + 1);
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EXPECT_NEAR(result, 1.00098f, 0.00005f);
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}
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/** @brief Test denormal numbers. */
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TEST(softfloat, FP16DenormalNumbers)
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{
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float result = sf16_to_float((0 << 10) + 1);
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EXPECT_NEAR(result, 5.96046e-08f, 0.00005f);
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}
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/** @brief Test zero. */
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TEST(softfloat, FP16Zero)
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{
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float result = sf16_to_float(0x0000);
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EXPECT_EQ(result, 0.0f);
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}
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/** @brief Test infinity. */
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TEST(softfloat, FP16Infinity)
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{
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float result = sf16_to_float((31 << 10) + 0);
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EXPECT_TRUE(std::isinf(result));
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}
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/** @brief Test NaN. */
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TEST(softfloat, FP16NaN)
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{
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float result = sf16_to_float(0xFFFF);
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EXPECT_TRUE(std::isnan(result));
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}
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#endif
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}
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