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// Copyright (c) 2020 Pantor. All rights reserved.
#include "inja/environment.hpp"
#include "test-common.hpp"
TEST_CASE("types") {
inja::Environment env;
inja::json data;
data["name"] = "Peter";
data["city"] = "Brunswick";
data["age"] = 29;
data["names"] = {"Jeff", "Seb"};
data["brother"]["name"] = "Chris";
data["brother"]["daughters"] = {"Maria", "Helen"};
data["brother"]["daughter0"] = {{"name", "Maria"}};
data["is_happy"] = true;
data["is_sad"] = false;
data["@name"] = "@name";
data["$name"] = "$name";
data["relatives"]["mother"] = "Maria";
data["relatives"]["brother"] = "Chris";
data["relatives"]["sister"] = "Jenny";
data["vars"] = {2, 3, 4, 0, -1, -2, -3};
data["max_value"] = 18446744073709551615ull;
SUBCASE("basic") {
CHECK(env.render("", data) == "");
CHECK(env.render("Hello World!", data) == "Hello World!");
CHECK_THROWS_WITH(env.render("{{ }}", data), "[inja.exception.render_error] (at 1:4) empty expression");
CHECK_THROWS_WITH(env.render("{{", data), "[inja.exception.parser_error] (at 1:3) expected expression close, got '<eof>'");
}
SUBCASE("variables") {
CHECK(env.render("Hello {{ name }}!", data) == "Hello Peter!");
CHECK(env.render("{{ name }}", data) == "Peter");
CHECK(env.render("{{name}}", data) == "Peter");
CHECK(env.render("{{ name }} is {{ age }} years old.", data) == "Peter is 29 years old.");
CHECK(env.render("Hello {{ name }}! I come from {{ city }}.", data) == "Hello Peter! I come from Brunswick.");
CHECK(env.render("Hello {{ names.1 }}!", data) == "Hello Seb!");
CHECK(env.render("Hello {{ brother.name }}!", data) == "Hello Chris!");
CHECK(env.render("Hello {{ brother.daughter0.name }}!", data) == "Hello Maria!");
CHECK(env.render("{{ \"{{ no_value }}\" }}", data) == "{{ no_value }}");
CHECK(env.render("{{ @name }}", data) == "@name");
CHECK(env.render("{{ $name }}", data) == "$name");
CHECK(env.render("{{max_value}}", data) == "18446744073709551615");
CHECK_THROWS_WITH(env.render("{{unknown}}", data), "[inja.exception.render_error] (at 1:3) variable 'unknown' not found");
}
SUBCASE("comments") {
CHECK(env.render("Hello{# This is a comment #}!", data) == "Hello!");
CHECK(env.render("{# --- #Todo --- #}", data) == "");
}
SUBCASE("loops") {
CHECK(env.render("{% for name in names %}a{% endfor %}", data) == "aa");
CHECK(env.render("Hello {% for name in names %}{{ name }} {% endfor %}!", data) == "Hello Jeff Seb !");
CHECK(env.render("Hello {% for name in names %}{{ loop.index }}: {{ name }}, {% endfor %}!", data) == "Hello 0: Jeff, 1: Seb, !");
CHECK(env.render("{% for type, name in relatives %}{{ loop.index1 }}: {{ type }}: {{ name }}{% if loop.is_last == "
"false %}, {% endif %}{% endfor %}",
data) == "1: brother: Chris, 2: mother: Maria, 3: sister: Jenny");
CHECK(env.render("{% for v in vars %}{% if v > 0 %}+{% endif %}{% endfor %}", data) == "+++");
CHECK(env.render("{% for name in names %}{{ loop.index }}: {{ name }}{% if not loop.is_last %}, {% endif %}{% endfor %}!", data) == "0: Jeff, 1: Seb!");
CHECK(env.render("{% for name in names %}{{ loop.index }}: {{ name }}{% if loop.is_last == false %}, {% endif %}{% "
"endfor %}!",
data) == "0: Jeff, 1: Seb!");
CHECK(env.render("{% for name in [] %}a{% endfor %}", data) == "");
CHECK_THROWS_WITH(env.render("{% for name ins names %}a{% endfor %}", data), "[inja.exception.parser_error] (at 1:13) expected 'in', got 'ins'");
CHECK_THROWS_WITH(env.render("{% for name in empty_loop %}a{% endfor %}", data), "[inja.exception.render_error] (at 1:16) variable 'empty_loop' not found");
// CHECK_THROWS_WITH( env.render("{% for name in relatives %}{{ name }}{% endfor %}", data),
// "[inja.exception.json_error] [json.exception.type_error.302] type must be array, but is object" );
}
SUBCASE("nested loops") {
auto ldata = inja::json::parse(R""""(
{ "outer" : [
{ "inner" : [
{ "in2" : [ 1, 2 ] },
{ "in2" : []},
{ "in2" : []}
]
},
{ "inner" : [] },
{ "inner" : [
{ "in2" : [ 3, 4 ] },
{ "in2" : [ 5, 6 ] }
]
}
]
}
)"""");
CHECK(env.render(R""""(
{% for o in outer %}{% for i in o.inner %}{{loop.parent.index}}:{{loop.index}}::{{loop.parent.is_last}}
{% for ii in i.in2%}{{ii}},{%endfor%}
{%endfor%}{%endfor%}
)"""",
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");
}
SUBCASE("conditionals") {
CHECK(env.render("{% if is_happy %}{% endif %}", data) == "");
CHECK(env.render("{% if is_happy %}Yeah!{% endif %}", data) == "Yeah!");
CHECK(env.render("{% if is_sad %}Yeah!{% endif %}", data) == "");
CHECK(env.render("{% if is_sad %}Yeah!{% else %}Nooo...{% endif %}", data) == "Nooo...");
CHECK(env.render("{% if age == 29 %}Right{% else %}Wrong{% endif %}", data) == "Right");
CHECK(env.render("{% if age > 29 %}Right{% else %}Wrong{% endif %}", data) == "Wrong");
CHECK(env.render("{% if age <= 29 %}Right{% else %}Wrong{% endif %}", data) == "Right");
CHECK(env.render("{% if age != 28 %}Right{% else %}Wrong{% endif %}", data) == "Right");
CHECK(env.render("{% if age >= 30 %}Right{% else %}Wrong{% endif %}", data) == "Wrong");
CHECK(env.render("{% if age in [28, 29, 30] %}True{% endif %}", data) == "True");
CHECK(env.render("{% if age == 28 %}28{% else if age == 29 %}29{% endif %}", data) == "29");
CHECK(env.render("{% if age == 26 %}26{% else if age == 27 %}27{% else if age == 28 %}28{% else %}29{% endif %}", data) == "29");
CHECK(env.render("{% if age == 25 %}+{% endif %}{% if age == 29 %}+{% else %}-{% endif %}", data) == "+");
CHECK_THROWS_WITH(env.render("{% if is_happy %}{% if is_happy %}{% endif %}", data), "[inja.exception.parser_error] (at 1:46) unmatched if");
CHECK_THROWS_WITH(env.render("{% if is_happy %}{% else if is_happy %}{% end if %}", data),
"[inja.exception.parser_error] (at 1:43) expected statement, got 'end'");
}
SUBCASE("set statements") {
CHECK(env.render("{% set predefined=true %}{% if predefined %}a{% endif %}", data) == "a");
CHECK(env.render("{% set predefined=false %}{% if predefined %}a{% endif %}", data) == "");
CHECK(env.render("{% set age=30 %}{{age}}", data) == "30");
CHECK(env.render("{% set age=2+3 %}{{age}}", data) == "5");
CHECK(env.render("{% set predefined.value=1 %}{% if existsIn(predefined, \"value\") %}{{predefined.value}}{% endif %}", data) == "1");
CHECK(env.render("{% set brother.name=\"Bob\" %}{{brother.name}}", data) == "Bob");
CHECK_THROWS_WITH(env.render("{% if predefined %}{% endif %}", data), "[inja.exception.render_error] (at 1:7) variable 'predefined' not found");
CHECK(env.render("{{age}}", data) == "29");
CHECK(env.render("{{brother.name}}", data) == "Chris");
}
SUBCASE("short circuit evaluation") {
CHECK(env.render("{% if 0 and undefined %}do{% else %}nothing{% endif %}", data) == "nothing");
CHECK_THROWS_WITH(env.render("{% if 1 and undefined %}do{% else %}nothing{% endif %}", data),
"[inja.exception.render_error] (at 1:13) variable 'undefined' not found");
}
SUBCASE("line statements") {
CHECK(env.render(R""""(## if is_happy
Yeah!
## endif)"""",
data) == R""""(Yeah!
)"""");
CHECK(env.render(R""""(## if is_happy
## if is_happy
Yeah!
## endif
## endif )"""",
data) == R""""(Yeah!
)"""");
}
SUBCASE("pipe syntax") {
CHECK(env.render("{{ brother.name | upper }}", data) == "CHRIS");
CHECK(env.render("{{ brother.name | upper | lower }}", data) == "chris");
CHECK(env.render("{{ [\"C\", \"A\", \"B\"] | sort | join(\",\") }}", data) == "A,B,C");
}
}
TEST_CASE("templates") {
inja::json data;
data["name"] = "Peter";
data["city"] = "Brunswick";
data["is_happy"] = true;
SUBCASE("reuse") {
inja::Environment env;
const inja::Template temp = env.parse("{% if is_happy %}{{ name }}{% else %}{{ city }}{% endif %}");
CHECK(env.render(temp, data) == "Peter");
data["is_happy"] = false;
CHECK(env.render(temp, data) == "Brunswick");
}
SUBCASE("include") {
inja::Environment env;
const inja::Template t1 = env.parse("Hello {{ name }}");
env.include_template("greeting", t1);
const inja::Template t2 = env.parse("{% include \"greeting\" %}!");
CHECK(env.render(t2, data) == "Hello Peter!");
CHECK_THROWS_WITH(env.parse("{% include \"does-not-exist\" %}!"), "[inja.exception.file_error] failed accessing file at 'does-not-exist'");
CHECK_THROWS_WITH(env.parse("{% include does-not-exist %}!"), "[inja.exception.parser_error] (at 1:12) expected string, got 'does-not-exist'");
}
SUBCASE("include-callback") {
inja::Environment env;
CHECK_THROWS_WITH(env.parse("{% include \"does-not-exist\" %}!"), "[inja.exception.file_error] failed accessing file at 'does-not-exist'");
env.set_search_included_templates_in_files(false);
env.set_include_callback([&env](const std::filesystem::path&, const std::string&) { return env.parse("Hello {{ name }}"); });
const inja::Template t1 = env.parse("{% include \"greeting\" %}!");
CHECK(env.render(t1, data) == "Hello Peter!");
env.set_search_included_templates_in_files(true);
env.set_include_callback([&env](const std::filesystem::path&, const std::string& name) { return env.parse("Bye " + name); });
const inja::Template t2 = env.parse("{% include \"Jeff\" %}!");
CHECK(env.render(t2, data) == "Bye Jeff!");
}
SUBCASE("include-in-loop") {
inja::json loop_data;
loop_data["cities"] = inja::json::array({{{"name", "Munich"}}, {{"name", "New York"}}});
inja::Environment env;
env.include_template("city.tpl", env.parse("{{ loop.index }}:{{ city.name }};"));
CHECK(env.render("{% for city in cities %}{% include \"city.tpl\" %}{% endfor %}", loop_data) == "0:Munich;1:New York;");
}
SUBCASE("count variables") {
inja::Environment env;
const inja::Template t1 = env.parse("Hello {{ name }}");
const inja::Template t2 = env.parse("{% if is_happy %}{{ name }}{% else %}{{ city }}{% endif %}");
const inja::Template t3 = env.parse("{% if at(name, test) %}{{ name }}{% else %}{{ city }}{{ upper(city) }}{% endif %}");
CHECK(t1.count_variables() == 1);
CHECK(t2.count_variables() == 3);
CHECK(t3.count_variables() == 5);
}
SUBCASE("whitespace control") {
inja::Environment env;
CHECK(env.render("{% if is_happy %}{{ name }}{% endif %}", data) == "Peter");
CHECK(env.render(" {% if is_happy %}{{ name }}{% endif %} ", data) == " Peter ");
CHECK(env.render(" {% if is_happy %}{{ name }}{% endif %}\n ", data) == " Peter\n ");
CHECK(env.render("Test\n {%- if is_happy %}{{ name }}{% endif %} ", data) == "Test\nPeter ");
CHECK(env.render(" {%+ if is_happy %}{{ name }}{% endif %}", data) == " Peter");
CHECK(env.render(" {%- if is_happy %}{{ name }}{% endif -%} \n ", data) == "Peter");
CHECK(env.render(" {{- name -}} \n ", data) == "Peter");
CHECK(env.render("Test\n {{- name }} ", data) == "Test\nPeter ");
CHECK(env.render(" {{ name }}\n ", data) == " Peter\n ");
CHECK(env.render("{{ name }}{# name -#} !", data) == "Peter!");
CHECK(env.render(" {#- name -#} !", data) == "!");
// Nothing will be stripped if there are other characters before the start of the block.
CHECK(env.render(". {%- if is_happy %}{{ name }}{% endif -%}\n", data) == ". Peter");
CHECK(env.render(". {#- comment -#}\n.", data) == ". .");
env.set_lstrip_blocks(true);
CHECK(env.render("Hello {{ name }}!", data) == "Hello Peter!");
CHECK(env.render(" {% if is_happy %}{{ name }}{% endif %}", data) == "Peter");
CHECK(env.render(" {% if is_happy %}{{ name }}{% endif %} ", data) == "Peter ");
CHECK(env.render(" {% if is_happy %}{{ name }}{% endif -%} ", data) == "Peter");
CHECK(env.render(" {%+ if is_happy %}{{ name }}{% endif %}", data) == " Peter");
CHECK(env.render("\n {%+ if is_happy %}{{ name }}{% endif -%} ", data) == "\n Peter");
CHECK(env.render("{% if is_happy %}{{ name }}{% endif %}\n", data) == "Peter\n");
CHECK(env.render(" {# comment #}", data) == "");
env.set_trim_blocks(true);
CHECK(env.render("{% if is_happy %}{{ name }}{% endif %}", data) == "Peter");
CHECK(env.render("{% if is_happy %}{{ name }}{% endif %}\n", data) == "Peter");
CHECK(env.render("{% if is_happy %}{{ name }}{% endif %} \n.", data) == "Peter.");
CHECK(env.render("{%- if is_happy %}{{ name }}{% endif -%} \n.", data) == "Peter.");
CHECK(env.render(" {# comment #} \n.", data) == ".");
}
}
TEST_CASE("other syntax") {
inja::json data;
data["name"] = "Peter";
data["city"] = "Brunswick";
data["age"] = 29;
data["names"] = {"Jeff", "Seb"};
data["brother"]["name"] = "Chris";
data["brother"]["daughters"] = {"Maria", "Helen"};
data["brother"]["daughter0"] = {{"name", "Maria"}};
data["is_happy"] = true;
SUBCASE("other expression syntax") {
inja::Environment env;
CHECK(env.render("Hello {{ name }}!", data) == "Hello Peter!");
env.set_expression("(&", "&)");
CHECK(env.render("Hello {{ name }}!", data) == "Hello {{ name }}!");
CHECK(env.render("Hello (& name &)!", data) == "Hello Peter!");
}
SUBCASE("other comment syntax") {
inja::Environment env;
env.set_comment("(&", "&)");
CHECK(env.render("Hello {# Test #}", data) == "Hello {# Test #}");
CHECK(env.render("Hello (& Test &)", data) == "Hello ");
}
SUBCASE("multiple changes") {
inja::Environment env;
env.set_line_statement("$$");
env.set_expression("<%", "%>");
std::string string_template = R""""(Hello <%name%>
$$ if name == "Peter"
You really are <%name%>
$$ endif
)"""";
CHECK(env.render(string_template, data) == "Hello Peter\n You really are Peter\n");
}
}
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