Function test_loops

subprojects/llama.cpp/tests/test-jinja.cpp:301–361

}

static void test_loops(testing & t) {
    test_template(t, "simple for",
        "{% for i in items %}{{ i }}{% endfor %}",
        {{"items", json::array({1, 2, 3})}},
        "123"
    );

    test_template(t, "loop.index",
        "{% for i in items %}{{ loop.index }}{% endfor %}",
        {{"items", json::array({"a", "b", "c"})}},
        "123"
    );

    test_template(t, "loop.index0",
        "{% for i in items %}{{ loop.index0 }}{% endfor %}",
        {{"items", json::array({"a", "b", "c"})}},
        "012"
    );

    test_template(t, "loop.first and loop.last",
        "{% for i in items %}{% if loop.first %}[{% endif %}{{ i }}{% if loop.last %}]{% endif %}{% endfor %}",
        {{"items", json::array({1, 2, 3})}},
        "[123]"
    );

    test_template(t, "loop.length",
        "{% for i in items %}{{ loop.length }}{% endfor %}",
        {{"items", json::array({"a", "b"})}},
        "22"
    );

    test_template(t, "for over dict items",
        "{% for k, v in data.items() %}{{ k }}={{ v }} {% endfor %}",
        {{"data", {{"x", 1}, {"y", 2}}}},
        "x=1 y=2 "
    );

    test_template(t, "for else empty",
        "{% for i in items %}{{ i }}{% else %}empty{% endfor %}",
        {{"items", json::array()}},
        "empty"
    );

    test_template(t, "for undefined empty",
        "{% for i in items %}{{ i }}{% else %}empty{% endfor %}",
        json::object(),
        "empty"
    );

    test_template(t, "nested for",
        "{% for i in a %}{% for j in b %}{{ i }}{{ j }}{% endfor %}{% endfor %}",
        {{"a", json::array({1, 2})}, {"b", json::array({"x", "y"})}},
        "1x1y2x2y"
    );

    test_template(t, "for with range",
        "{% for i in range(3) %}{{ i }}{% endfor %}",
        json::object(),