gecko/services/sync/tests/unit/test_utils_json.js
2011-05-19 18:08:51 -07:00

92 lines
2.7 KiB
JavaScript

_("Make sure json saves and loads from disk");
Cu.import("resource://services-sync/util.js");
Cu.import("resource://services-sync/constants.js");
function run_test() {
run_next_test();
}
add_test(function test_roundtrip() {
_("Do a simple write of an array to json and read");
Utils.jsonSave("foo", {}, ["v1", "v2"], ensureThrows(function() {
Utils.jsonLoad("foo", {}, ensureThrows(function(val) {
let foo = val;
do_check_eq(typeof foo, "object");
do_check_eq(foo.length, 2);
do_check_eq(foo[0], "v1");
do_check_eq(foo[1], "v2");
run_next_test();
}));
}));
});
add_test(function test_string() {
_("Try saving simple strings");
Utils.jsonSave("str", {}, "hi", ensureThrows(function() {
Utils.jsonLoad("str", {}, ensureThrows(function(val) {
let str = val;
do_check_eq(typeof str, "string");
do_check_eq(str.length, 2);
do_check_eq(str[0], "h");
do_check_eq(str[1], "i");
run_next_test();
}));
}));
});
add_test(function test_number() {
_("Try saving a number");
Utils.jsonSave("num", {}, 42, ensureThrows(function() {
Utils.jsonLoad("num", {}, ensureThrows(function(val) {
let num = val;
do_check_eq(typeof num, "number");
do_check_eq(num, 42);
run_next_test();
}));
}));
});
add_test(function test_nonexistent_file() {
_("Try loading a non-existent file.");
Utils.jsonLoad("non-existent", {}, ensureThrows(function(val) {
do_check_eq(val, undefined);
run_next_test();
}));
});
add_test(function test_save_logging() {
_("Verify that writes are logged.");
let trace;
Utils.jsonSave("log", {_log: {trace: function(msg) { trace = msg; }}},
"hi", ensureThrows(function () {
do_check_true(!!trace);
run_next_test();
}));
});
add_test(function test_load_logging() {
_("Verify that reads and read errors are logged.");
// Write a file with some invalid JSON
let file = Utils.getProfileFile("weave/log.json");
let fos = Cc["@mozilla.org/network/file-output-stream;1"]
.createInstance(Ci.nsIFileOutputStream);
fos.init(file, MODE_WRONLY | MODE_CREATE | MODE_TRUNCATE, PERMS_FILE,
fos.DEFER_OPEN);
let stream = Cc["@mozilla.org/intl/converter-output-stream;1"]
.createInstance(Ci.nsIConverterOutputStream);
stream.init(fos, "UTF-8", 4096, 0x0000);
stream.writeString("invalid json!");
stream.close();
let trace, debug;
Utils.jsonLoad("log",
{_log: {trace: function(msg) { trace = msg; },
debug: function(msg) { debug = msg; }}},
ensureThrows(function(val) {
do_check_true(!!trace);
do_check_true(!!debug);
run_next_test();
}));
});