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|
#!/usr/bin/perl
# (C) Nginx, Inc.
# Promise tests for http njs module.
###############################################################################
use warnings;
use strict;
use Test::More;
BEGIN { use FindBin; chdir($FindBin::Bin); }
use lib 'lib';
use Test::Nginx;
###############################################################################
select STDERR; $| = 1;
select STDOUT; $| = 1;
my $t = Test::Nginx->new()->has(qw/http/)
->write_file_expand('nginx.conf', <<'EOF');
%%TEST_GLOBALS%%
daemon off;
events {
}
http {
%%TEST_GLOBALS_HTTP%%
js_import test.js;
server {
listen 127.0.0.1:8080;
server_name localhost;
location /njs {
js_content test.njs;
}
location /promise {
js_content test.promise;
}
location /promise_throw {
js_content test.promise_throw;
}
location /promise_pure {
js_content test.promise_pure;
}
location /timeout {
js_content test.timeout;
}
location /sub_token {
js_content test.sub_token;
}
}
}
EOF
$t->write_file('test.js', <<EOF);
var global_token = '';
function test_njs(r) {
r.return(200, njs.version);
}
function promise(r) {
promisified_subrequest(r, '/sub_token', 'code=200&token=a')
.then(reply => {
var data = JSON.parse(reply.responseText);
if (data['token'] !== "a") {
throw new Error('token is not "a"');
}
return data['token'];
})
.then(token => {
promisified_subrequest(r, '/sub_token', 'code=200&token=b')
.then(reply => {
var data = JSON.parse(reply.responseText);
r.return(200, '{"token": "' + data['token'] + '"}');
})
.catch(() => {
throw new Error("failed promise() test");
});
})
.catch(() => {
r.return(500);
});
}
function promise_throw(r) {
promisified_subrequest(r, '/sub_token', 'code=200&token=x')
.then(reply => {
var data = JSON.parse(reply.responseText);
if (data['token'] !== "a") {
throw data['token'];
}
return data['token'];
})
.then(() => {
r.return(500);
})
.catch(token => {
r.return(200, '{"token": "' + token + '"}');
});
}
function promise_pure(r) {
var count = 0;
Promise.resolve(true)
.then(() => count++)
.then(() => not_exist_ref)
.finally(() => count++)
.catch(() => {
r.return((count != 2) ? 500 : 200);
});
}
function timeout(r) {
promisified_subrequest(r, '/sub_token', 'code=200&token=R')
.then(reply => JSON.parse(reply.responseText))
.then(data => {
setTimeout(timeout_cb, 50, r, '/sub_token', 'code=200&token=T');
return data;
})
.then(data => {
setTimeout(timeout_cb, 1, r, '/sub_token', 'code=200&token='
+ data['token']);
})
.catch(() => {
r.return(500);
});
}
function timeout_cb(r, url, args) {
promisified_subrequest(r, url, args)
.then(reply => {
if (global_token == '') {
var data = JSON.parse(reply.responseText);
global_token = data['token'];
r.return(200, '{"token": "' + data['token'] + '"}');
}
})
.catch(() => {
r.return(500);
});
}
function promisified_subrequest(r, uri, args) {
return new Promise((resolve, reject) => {
r.subrequest(uri, args, (reply) => {
if (reply.status < 400) {
resolve(reply);
} else {
reject(reply);
}
});
})
}
function sub_token(r) {
var code = r.variables.arg_code;
var token = r.variables.arg_token;
r.return(parseInt(code), '{"token": "'+ token +'"}');
}
export default {njs:test_njs, promise, promise_throw, promise_pure,
timeout, sub_token};
EOF
$t->try_run('no njs available')->plan(4);
###############################################################################
like(http_get('/promise'), qr/{"token": "b"}/, "Promise");
like(http_get('/promise_throw'), qr/{"token": "x"}/, "Promise throw and catch");
like(http_get('/timeout'), qr/{"token": "R"}/, "Promise with timeout");
like(http_get('/promise_pure'), qr/200 OK/, "events handling");
###############################################################################
|
