Function DYNAMIC_SECTION

tests/unit/debug.cpp:166–224

        for (auto& [label, qureg]: getCachedDensmatrs()) {

            DYNAMIC_SECTION( label ) {

                SECTION( "same seed consistency" ) {

                    unsigned seeds[] = {123, 543, 755};
                    const int numSeeds = 3;
                    const int numMixedStates = 10;
                    const int numReps = 5;

                    // set an arbitrary fixed seed...
                    setSeeds(seeds, numSeeds);

                    // generate and remember a random state
                    initRandomMixedState(qureg, numMixedStates);
                    qmatrix ref = getMatrix(qureg);

                    // get a set of random measurement outcomes
                    vector<int> outcomes(qureg.numQubits);
                    for (int i=0; i<qureg.numQubits; i++)
                        outcomes[i] = applyQubitMeasurement(qureg, i);

                    // repeatedly...
                    for (int r=0; r<numReps; r++) {

                        // reset the seed
                        setSeeds(seeds, numSeeds);

                        // and confirm all random states are re-produced
                        initRandomMixedState(qureg, numMixedStates);
                        REQUIRE_AGREE( qureg, ref);

                        // as are all measurement outcomes
                        for (int i=0; i<qureg.numQubits; i++)
                            REQUIRE( outcomes[i] == applyQubitMeasurement(qureg,i) );
                    }
                }

                SECTION( "different key inconsistency" ) {

                    unsigned seeds[] = {123, 543, 755};
                    const int numSeeds = 3;
                    const int ampInd = 0;

                    // set arbitrary seed and collect random-state amp
                    setSeeds(seeds, numSeeds);
                    initRandomPureState(qureg);
                    qcomp amp1 = getDensityQuregAmp(qureg, ampInd, ampInd);

                    // change one passed seed and re-collect random-state amp
                    int i = GENERATE_COPY( range(0,numSeeds) );
                    seeds[i] = 987654321;
                    setSeeds(seeds, numSeeds);
                    initRandomPureState(qureg);
                    qcomp amp2 = getDensityQuregAmp(qureg, ampInd, ampInd);

                    // amps differ if seed successfully impacts outcomes
                    REQUIRE( amp1 != amp2 );
                }