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-rw-r--r--toolkit/modules/tests/xpcshell/test_CanonicalJSON.js146
1 files changed, 146 insertions, 0 deletions
diff --git a/toolkit/modules/tests/xpcshell/test_CanonicalJSON.js b/toolkit/modules/tests/xpcshell/test_CanonicalJSON.js
new file mode 100644
index 000000000..fa61f5a01
--- /dev/null
+++ b/toolkit/modules/tests/xpcshell/test_CanonicalJSON.js
@@ -0,0 +1,146 @@
+const { CanonicalJSON } = Components.utils.import("resource://gre/modules/CanonicalJSON.jsm");
+
+function stringRepresentation(obj) {
+ const clone = JSON.parse(JSON.stringify(obj));
+ return JSON.stringify(clone);
+}
+
+add_task(function* test_canonicalJSON_should_preserve_array_order() {
+ const input = ['one', 'two', 'three'];
+ // No sorting should be done on arrays.
+ do_check_eq(CanonicalJSON.stringify(input), '["one","two","three"]');
+});
+
+add_task(function* test_canonicalJSON_orders_object_keys() {
+ const input = [{
+ b: ['two', 'three'],
+ a: ['zero', 'one']
+ }];
+ do_check_eq(
+ CanonicalJSON.stringify(input),
+ '[{"a":["zero","one"],"b":["two","three"]}]'
+ );
+});
+
+add_task(function* test_canonicalJSON_orders_nested_object_keys() {
+ const input = [{
+ b: {d: 'd', c: 'c'},
+ a: {b: 'b', a: 'a'}
+ }];
+ do_check_eq(
+ CanonicalJSON.stringify(input),
+ '[{"a":{"a":"a","b":"b"},"b":{"c":"c","d":"d"}}]'
+ );
+});
+
+add_task(function* test_canonicalJSON_escapes_unicode_values() {
+ do_check_eq(
+ CanonicalJSON.stringify([{key: '✓'}]),
+ '[{"key":"\\u2713"}]'
+ );
+ // Unicode codepoints should be output in lowercase.
+ do_check_eq(
+ CanonicalJSON.stringify([{key: 'é'}]),
+ '[{"key":"\\u00e9"}]'
+ );
+});
+
+add_task(function* test_canonicalJSON_escapes_unicode_object_keys() {
+ do_check_eq(
+ CanonicalJSON.stringify([{'é': 'check'}]),
+ '[{"\\u00e9":"check"}]'
+ );
+});
+
+
+add_task(function* test_canonicalJSON_does_not_alter_input() {
+ const records = [
+ {'foo': 'bar', 'last_modified': '12345', 'id': '1'},
+ {'bar': 'baz', 'last_modified': '45678', 'id': '2'}
+ ];
+ const serializedJSON = JSON.stringify(records);
+ CanonicalJSON.stringify(records);
+ do_check_eq(JSON.stringify(records), serializedJSON);
+});
+
+
+add_task(function* test_canonicalJSON_preserves_data() {
+ const records = [
+ {'foo': 'bar', 'last_modified': '12345', 'id': '1'},
+ {'bar': 'baz', 'last_modified': '45678', 'id': '2'},
+ ]
+ const serialized = CanonicalJSON.stringify(records);
+ const expected = '[{"foo":"bar","id":"1","last_modified":"12345"},' +
+ '{"bar":"baz","id":"2","last_modified":"45678"}]';
+ do_check_eq(CanonicalJSON.stringify(records), expected);
+});
+
+add_task(function* test_canonicalJSON_does_not_add_space_separators() {
+ const records = [
+ {'foo': 'bar', 'last_modified': '12345', 'id': '1'},
+ {'bar': 'baz', 'last_modified': '45678', 'id': '2'},
+ ]
+ const serialized = CanonicalJSON.stringify(records);
+ do_check_false(serialized.includes(" "));
+});
+
+add_task(function* test_canonicalJSON_serializes_empty_object() {
+ do_check_eq(CanonicalJSON.stringify({}), "{}");
+});
+
+add_task(function* test_canonicalJSON_serializes_empty_array() {
+ do_check_eq(CanonicalJSON.stringify([]), "[]");
+});
+
+add_task(function* test_canonicalJSON_serializes_NaN() {
+ do_check_eq(CanonicalJSON.stringify(NaN), "null");
+});
+
+add_task(function* test_canonicalJSON_serializes_inf() {
+ // This isn't part of the JSON standard.
+ do_check_eq(CanonicalJSON.stringify(Infinity), "null");
+});
+
+
+add_task(function* test_canonicalJSON_serializes_empty_string() {
+ do_check_eq(CanonicalJSON.stringify(""), '""');
+});
+
+add_task(function* test_canonicalJSON_escapes_backslashes() {
+ do_check_eq(CanonicalJSON.stringify("This\\and this"), '"This\\\\and this"');
+});
+
+add_task(function* test_canonicalJSON_handles_signed_zeros() {
+ // do_check_eq doesn't support comparison of -0 and 0 properly.
+ do_check_true(CanonicalJSON.stringify(-0) === '-0');
+ do_check_true(CanonicalJSON.stringify(0) === '0');
+});
+
+
+add_task(function* test_canonicalJSON_with_deeply_nested_dicts() {
+ const records = [{
+ 'a': {
+ 'b': 'b',
+ 'a': 'a',
+ 'c': {
+ 'b': 'b',
+ 'a': 'a',
+ 'c': ['b', 'a', 'c'],
+ 'd': {'b': 'b', 'a': 'a'},
+ 'id': '1',
+ 'e': 1,
+ 'f': [2, 3, 1],
+ 'g': {2: 2, 3: 3, 1: {
+ 'b': 'b', 'a': 'a', 'c': 'c'}}}},
+ 'id': '1'}]
+ const expected =
+ '[{"a":{"a":"a","b":"b","c":{"a":"a","b":"b","c":["b","a","c"],' +
+ '"d":{"a":"a","b":"b"},"e":1,"f":[2,3,1],"g":{' +
+ '"1":{"a":"a","b":"b","c":"c"},"2":2,"3":3},"id":"1"}},"id":"1"}]';
+
+ do_check_eq(CanonicalJSON.stringify(records), expected);
+});
+
+function run_test() {
+ run_next_test();
+}