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2025-06-12 7b72ac13a83764a662159d4a49b7fffb90476ecb

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/**
 * @license
 * Copyright 2018 Google LLC. All Rights Reserved.
 * 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 { ALL_ENVS, describeWithFlags } from '../jasmine_util';
import { expectArraysClose } from '../test_util';
import * as complex_util from './complex_util';
describe('complex_util', () => {
    it('mergeRealAndImagArrays', () => {
        const real = new Float32Array([1, 2, 3]);
        const imag = new Float32Array([4, 5, 6]);
        const complex = complex_util.mergeRealAndImagArrays(real, imag);
        expect(complex).toEqual(new Float32Array([1, 4, 2, 5, 3, 6]));
    });
    it('splitRealAndImagArrays', () => {
        const complex = new Float32Array([1, 4, 2, 5, 3, 6]);
        const result = complex_util.splitRealAndImagArrays(complex);
        expect(result.real).toEqual(new Float32Array([1, 2, 3]));
        expect(result.imag).toEqual(new Float32Array([4, 5, 6]));
    });
    it('complexWithEvenIndex', () => {
        const complex = new Float32Array([1, 2, 3, 4, 5, 6]);
        const result = complex_util.complexWithEvenIndex(complex);
        expect(result.real).toEqual(new Float32Array([1, 5]));
        expect(result.imag).toEqual(new Float32Array([2, 6]));
    });
    it('complexWithOddIndex', () => {
        const complex = new Float32Array([1, 2, 3, 4, 5, 6]);
        const result = complex_util.complexWithOddIndex(complex);
        expect(result.real).toEqual(new Float32Array([3]));
        expect(result.imag).toEqual(new Float32Array([4]));
    });
});
describeWithFlags('complex_util exponents', ALL_ENVS, () => {
    it('exponents inverse=false', () => {
        const inverse = false;
        const result = complex_util.exponents(5, inverse);
        expectArraysClose(result.real, new Float32Array([1, 0.30901700258255005]));
        expectArraysClose(result.imag, new Float32Array([0, -0.9510565400123596]));
    });
    it('exponents inverse=true', () => {
        const inverse = true;
        const result = complex_util.exponents(5, inverse);
        expectArraysClose(result.real, new Float32Array([1, 0.30901700258255005]));
        expectArraysClose(result.imag, new Float32Array([0, 0.9510565400123596]));
    });
});
describeWithFlags('complex_util assignment', ALL_ENVS, () => {
    it('assign complex value in TypedArray', () => {
        const t = new Float32Array(4);
        complex_util.assignToTypedArray(t, 1, 2, 0);
        complex_util.assignToTypedArray(t, 3, 4, 1);
        expectArraysClose(t, new Float32Array([1, 2, 3, 4]));
    });
});
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All Rights Reserved.\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n * =============================================================================\n */\nimport {ALL_ENVS, describeWithFlags} from '../jasmine_util';\nimport {expectArraysClose} from '../test_util';\n\nimport * as complex_util from './complex_util';\n\ndescribe('complex_util', () => {\n  it('mergeRealAndImagArrays', () => {\n    const real = new Float32Array([1, 2, 3]);\n    const imag = new Float32Array([4, 5, 6]);\n    const complex = complex_util.mergeRealAndImagArrays(real, imag);\n    expect(complex).toEqual(new Float32Array([1, 4, 2, 5, 3, 6]));\n  });\n\n  it('splitRealAndImagArrays', () => {\n    const complex = new Float32Array([1, 4, 2, 5, 3, 6]);\n    const result = complex_util.splitRealAndImagArrays(complex);\n    expect(result.real).toEqual(new Float32Array([1, 2, 3]));\n    expect(result.imag).toEqual(new Float32Array([4, 5, 6]));\n  });\n\n  it('complexWithEvenIndex', () => {\n    const complex = new Float32Array([1, 2, 3, 4, 5, 6]);\n    const result = complex_util.complexWithEvenIndex(complex);\n    expect(result.real).toEqual(new Float32Array([1, 5]));\n    expect(result.imag).toEqual(new Float32Array([2, 6]));\n  });\n\n  it('complexWithOddIndex', () => {\n    const complex = new Float32Array([1, 2, 3, 4, 5, 6]);\n    const result = complex_util.complexWithOddIndex(complex);\n    expect(result.real).toEqual(new Float32Array([3]));\n    expect(result.imag).toEqual(new Float32Array([4]));\n  });\n});\n\ndescribeWithFlags('complex_util exponents', ALL_ENVS, () => {\n  it('exponents inverse=false', () => {\n    const inverse = false;\n    const result = complex_util.exponents(5, inverse);\n    expectArraysClose(result.real, new Float32Array([1, 0.30901700258255005]));\n    expectArraysClose(result.imag, new Float32Array([0, -0.9510565400123596]));\n  });\n  it('exponents inverse=true', () => {\n    const inverse = true;\n    const result = complex_util.exponents(5, inverse);\n    expectArraysClose(result.real, new Float32Array([1, 0.30901700258255005]));\n    expectArraysClose(result.imag, new Float32Array([0, 0.9510565400123596]));\n  });\n});\n\ndescribeWithFlags('complex_util assignment', ALL_ENVS, () => {\n  it('assign complex value in TypedArray', () => {\n    const t = new Float32Array(4);\n\n    complex_util.assignToTypedArray(t, 1, 2, 0);\n    complex_util.assignToTypedArray(t, 3, 4, 1);\n\n    expectArraysClose(t, new Float32Array([1, 2, 3, 4]));\n  });\n});\n"]}