Function exec4

test/unit/WhereTest.cpp:186–229

}

void exec4(const std::string& where, size_t expKeep, size_t expViews,
    Stage::WhereMergeMode mm = Stage::WhereMergeMode::Auto)
{
    StageFactory factory;

    Stage *r = factory.createStage("readers.faux");
    Options ro;
    ro.add("count", 100);
    ro.add("bounds", BOX3D(0, 0, 100, 99, 9.9, 199));
    ro.add("mode", "ramp");
    r->setOptions(ro);

    class TestWriter : public NoFilenameWriter
    {
        std::string getName() const
        { return "writers.test"; }

        PointViewSet run(PointViewPtr v)
        {
            g_count = v->size();
            PointViewSet s;
            s.insert(v);
            s.insert(v->makeNew());
            return s;
        }
    };

    TestWriter w;
    Options wo;
    wo.add("where", where);
    wo.add("where_merge", mm);
    w.setOptions(wo);
    w.setInput(*r);

    PointTable t;
    w.prepare(t);
    PointViewSet s = w.execute(t);
    EXPECT_EQ(s.size(), expViews);
    size_t total = 0;
    for (auto vp : s)
        total += vp->size();
    EXPECT_EQ(total, 100u);
    EXPECT_EQ(g_count, expKeep);
}

void exec5(const std::string& where, size_t expKeep)
{