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264 lines
11 KiB
C++
264 lines
11 KiB
C++
// Copyright (c) 2019 Pantor. All rights reserved.
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#include "doctest/doctest.h"
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#include "inja/inja.hpp"
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TEST_CASE("types") {
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inja::Environment env;
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json data;
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data["name"] = "Peter";
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data["city"] = "Brunswick";
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data["age"] = 29;
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data["names"] = {"Jeff", "Seb"};
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data["brother"]["name"] = "Chris";
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data["brother"]["daughters"] = {"Maria", "Helen"};
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data["brother"]["daughter0"] = {{"name", "Maria"}};
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data["is_happy"] = true;
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data["is_sad"] = false;
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data["relatives"]["mother"] = "Maria";
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data["relatives"]["brother"] = "Chris";
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data["relatives"]["sister"] = "Jenny";
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data["vars"] = {2, 3, 4, 0, -1, -2, -3};
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SUBCASE("basic") {
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CHECK(env.render("", data) == "");
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CHECK(env.render("Hello World!", data) == "Hello World!");
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CHECK_THROWS_WITH(env.render("{{ }}", data), "[inja.exception.render_error] (at 1:4) empty expression");
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CHECK_THROWS_WITH(env.render("{{", data), "[inja.exception.parser_error] (at 1:3) expected expression close, got '<eof>'");
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}
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SUBCASE("variables") {
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CHECK(env.render("Hello {{ name }}!", data) == "Hello Peter!");
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CHECK(env.render("{{ name }}", data) == "Peter");
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CHECK(env.render("{{name}}", data) == "Peter");
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CHECK(env.render("{{ name }} is {{ age }} years old.", data) == "Peter is 29 years old.");
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CHECK(env.render("Hello {{ name }}! I come from {{ city }}.", data) == "Hello Peter! I come from Brunswick.");
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CHECK(env.render("Hello {{ names.1 }}!", data) == "Hello Seb!");
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CHECK(env.render("Hello {{ brother.name }}!", data) == "Hello Chris!");
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CHECK(env.render("Hello {{ brother.daughter0.name }}!", data) == "Hello Maria!");
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CHECK(env.render("{{ \"{{ no_value }}\" }}", data) == "{{ no_value }}");
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CHECK_THROWS_WITH(env.render("{{unknown}}", data), "[inja.exception.render_error] (at 1:3) variable 'unknown' not found");
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}
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SUBCASE("comments") {
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CHECK(env.render("Hello{# This is a comment #}!", data) == "Hello!");
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CHECK(env.render("{# --- #Todo --- #}", data) == "");
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}
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SUBCASE("loops") {
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CHECK(env.render("{% for name in names %}a{% endfor %}", data) == "aa");
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CHECK(env.render("Hello {% for name in names %}{{ name }} {% endfor %}!", data) == "Hello Jeff Seb !");
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CHECK(env.render("Hello {% for name in names %}{{ loop.index }}: {{ name }}, {% endfor %}!", data) ==
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"Hello 0: Jeff, 1: Seb, !");
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CHECK(env.render("{% for type, name in relatives %}{{ loop.index1 }}: {{ type }}: {{ name }}{% if loop.is_last == "
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"false %}, {% endif %}{% endfor %}",
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data) == "1: brother: Chris, 2: mother: Maria, 3: sister: Jenny");
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CHECK(env.render("{% for v in vars %}{% if v > 0 %}+{% endif %}{% endfor %}", data) == "+++");
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CHECK(env.render(
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"{% for name in names %}{{ loop.index }}: {{ name }}{% if not loop.is_last %}, {% endif %}{% endfor %}!",
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data) == "0: Jeff, 1: Seb!");
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CHECK(env.render("{% for name in names %}{{ loop.index }}: {{ name }}{% if loop.is_last == false %}, {% endif %}{% "
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"endfor %}!",
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data) == "0: Jeff, 1: Seb!");
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CHECK(env.render("{% for name in [] %}a{% endfor %}", data) == "");
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CHECK_THROWS_WITH(env.render("{% for name ins names %}a{% endfor %}", data),
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"[inja.exception.parser_error] (at 1:13) expected 'in', got 'ins'");
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CHECK_THROWS_WITH(env.render("{% for name in empty_loop %}a{% endfor %}", data),
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"[inja.exception.render_error] (at 1:16) variable 'empty_loop' not found");
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// CHECK_THROWS_WITH( env.render("{% for name in relatives %}{{ name }}{% endfor %}", data),
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// "[inja.exception.json_error] [json.exception.type_error.302] type must be array, but is object" );
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}
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SUBCASE("nested loops") {
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auto ldata = json::parse(R""""(
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{ "outer" : [
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{ "inner" : [
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{ "in2" : [ 1, 2 ] },
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{ "in2" : []},
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{ "in2" : []}
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]
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},
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{ "inner" : [] },
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{ "inner" : [
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{ "in2" : [ 3, 4 ] },
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{ "in2" : [ 5, 6 ] }
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]
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}
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]
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}
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)"""");
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CHECK(env.render(R""""(
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{% for o in outer %}{% for i in o.inner %}{{loop.parent.index}}:{{loop.index}}::{{loop.parent.is_last}}
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{% for ii in i.in2%}{{ii}},{%endfor%}
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{%endfor%}{%endfor%}
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)"""",
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ldata) == "\n0:0::false\n1,2,\n0:1::false\n\n0:2::false\n\n2:0::true\n3,4,\n2:1::true\n5,6,\n\n");
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}
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SUBCASE("conditionals") {
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CHECK(env.render("{% if is_happy %}{% endif %}", data) == "");
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CHECK(env.render("{% if is_happy %}Yeah!{% endif %}", data) == "Yeah!");
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CHECK(env.render("{% if is_sad %}Yeah!{% endif %}", data) == "");
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CHECK(env.render("{% if is_sad %}Yeah!{% else %}Nooo...{% endif %}", data) == "Nooo...");
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CHECK(env.render("{% if age == 29 %}Right{% else %}Wrong{% endif %}", data) == "Right");
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CHECK(env.render("{% if age > 29 %}Right{% else %}Wrong{% endif %}", data) == "Wrong");
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CHECK(env.render("{% if age <= 29 %}Right{% else %}Wrong{% endif %}", data) == "Right");
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CHECK(env.render("{% if age != 28 %}Right{% else %}Wrong{% endif %}", data) == "Right");
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CHECK(env.render("{% if age >= 30 %}Right{% else %}Wrong{% endif %}", data) == "Wrong");
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CHECK(env.render("{% if age in [28, 29, 30] %}True{% endif %}", data) == "True");
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CHECK(env.render("{% if age == 28 %}28{% else if age == 29 %}29{% endif %}", data) == "29");
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CHECK(env.render("{% if age == 26 %}26{% else if age == 27 %}27{% else if age == 28 %}28{% else %}29{% endif %}",
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data) == "29");
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CHECK(env.render("{% if age == 25 %}+{% endif %}{% if age == 29 %}+{% else %}-{% endif %}", data) == "+");
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CHECK_THROWS_WITH(env.render("{% if is_happy %}{% if is_happy %}{% endif %}", data),
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"[inja.exception.parser_error] (at 1:46) unmatched if");
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CHECK_THROWS_WITH(env.render("{% if is_happy %}{% else if is_happy %}{% end if %}", data),
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"[inja.exception.parser_error] (at 1:43) expected statement, got 'end'");
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}
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SUBCASE("line statements") {
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CHECK(env.render(R""""(## if is_happy
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Yeah!
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## endif)"""",
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data) == R""""(Yeah!
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)"""");
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CHECK(env.render(R""""(## if is_happy
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## if is_happy
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Yeah!
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## endif
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## endif )"""",
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data) == R""""(Yeah!
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)"""");
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}
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}
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TEST_CASE("templates") {
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json data;
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data["name"] = "Peter";
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data["city"] = "Brunswick";
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data["is_happy"] = true;
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SUBCASE("reuse") {
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inja::Environment env;
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inja::Template temp = env.parse("{% if is_happy %}{{ name }}{% else %}{{ city }}{% endif %}");
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CHECK(env.render(temp, data) == "Peter");
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data["is_happy"] = false;
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CHECK(env.render(temp, data) == "Brunswick");
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}
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SUBCASE("include") {
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inja::Environment env;
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inja::Template t1 = env.parse("Hello {{ name }}");
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env.include_template("greeting", t1);
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inja::Template t2 = env.parse("{% include \"greeting\" %}!");
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CHECK(env.render(t2, data) == "Hello Peter!");
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CHECK_THROWS_WITH(env.parse("{% include \"does-not-exist\" %}!"),
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"[inja.exception.file_error] failed accessing file at 'does-not-exist'");
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}
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SUBCASE("include-in-loop") {
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json loop_data;
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loop_data["cities"] = json::array({{{"name", "Munich"}}, {{"name", "New York"}}});
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inja::Environment env;
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env.include_template("city.tpl", env.parse("{{ loop.index }}:{{ city.name }};"));
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CHECK(env.render("{% for city in cities %}{% include \"city.tpl\" %}{% endfor %}", loop_data) ==
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"0:Munich;1:New York;");
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}
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SUBCASE("count variables") {
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inja::Environment env;
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inja::Template t1 = env.parse("Hello {{ name }}");
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inja::Template t2 = env.parse("{% if is_happy %}{{ name }}{% else %}{{ city }}{% endif %}");
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inja::Template t3 = env.parse("{% if at(name, test) %}{{ name }}{% else %}{{ city }}{{ upper(city) }}{% endif %}");
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CHECK(t1.count_variables() == 1);
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CHECK(t2.count_variables() == 3);
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CHECK(t3.count_variables() == 5);
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}
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SUBCASE("whitespace control") {
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inja::Environment env;
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CHECK(env.render("{% if is_happy %}{{ name }}{% endif %}", data) == "Peter");
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CHECK(env.render(" {% if is_happy %}{{ name }}{% endif %} ", data) == " Peter ");
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CHECK(env.render(" {% if is_happy %}{{ name }}{% endif %}\n ", data) == " Peter\n ");
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CHECK(env.render("Test\n {%- if is_happy %}{{ name }}{% endif %} ", data) == "Test\nPeter ");
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CHECK(env.render(" {%+ if is_happy %}{{ name }}{% endif %}", data) == " Peter");
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CHECK(env.render(" {%- if is_happy %}{{ name }}{% endif -%} \n ", data) == "Peter");
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// Nothing will be stripped if there are other characters before the start of the block.
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CHECK(env.render(". {%- if is_happy %}{{ name }}{% endif -%}\n", data) == ". Peter");
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env.set_lstrip_blocks(true);
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CHECK(env.render(" {% if is_happy %}{{ name }}{% endif %}", data) == "Peter");
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CHECK(env.render(" {% if is_happy %}{{ name }}{% endif %} ", data) == "Peter ");
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CHECK(env.render(" {% if is_happy %}{{ name }}{% endif -%} ", data) == "Peter");
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CHECK(env.render(" {%+ if is_happy %}{{ name }}{% endif %}", data) == " Peter");
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CHECK(env.render("\n {%+ if is_happy %}{{ name }}{% endif -%} ", data) == "\n Peter");
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CHECK(env.render("{% if is_happy %}{{ name }}{% endif %}\n", data) == "Peter\n");
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env.set_trim_blocks(true);
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CHECK(env.render("{% if is_happy %}{{ name }}{% endif %}", data) == "Peter");
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CHECK(env.render("{% if is_happy %}{{ name }}{% endif %}\n", data) == "Peter");
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CHECK(env.render("{% if is_happy %}{{ name }}{% endif %} \n.", data) == "Peter.");
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CHECK(env.render("{%- if is_happy %}{{ name }}{% endif -%} \n.", data) == "Peter.");
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}
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}
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TEST_CASE("other syntax") {
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json data;
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data["name"] = "Peter";
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data["city"] = "Brunswick";
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data["age"] = 29;
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data["names"] = {"Jeff", "Seb"};
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data["brother"]["name"] = "Chris";
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data["brother"]["daughters"] = {"Maria", "Helen"};
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data["brother"]["daughter0"] = {{"name", "Maria"}};
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data["is_happy"] = true;
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SUBCASE("other expression syntax") {
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inja::Environment env;
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CHECK(env.render("Hello {{ name }}!", data) == "Hello Peter!");
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env.set_expression("(&", "&)");
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CHECK(env.render("Hello {{ name }}!", data) == "Hello {{ name }}!");
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CHECK(env.render("Hello (& name &)!", data) == "Hello Peter!");
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}
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SUBCASE("other comment syntax") {
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inja::Environment env;
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env.set_comment("(&", "&)");
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CHECK(env.render("Hello {# Test #}", data) == "Hello {# Test #}");
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CHECK(env.render("Hello (& Test &)", data) == "Hello ");
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}
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SUBCASE("multiple changes") {
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inja::Environment env;
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env.set_line_statement("$$");
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env.set_expression("<%", "%>");
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std::string string_template = R""""(Hello <%name%>
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$$ if name == "Peter"
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You really are <%name%>
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$$ endif
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)"""";
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CHECK(env.render(string_template, data) == "Hello Peter\n You really are Peter\n");
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}
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}
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