js/src/jsapi-tests/testResult.cpp

   1 /* This Source Code Form is subject to the terms of the Mozilla Public
   2  * License, v. 2.0. If a copy of the MPL was not distributed with this
   3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   4
   5 #include "jsapi.h"      // JS_NewPlainObject
   6 #include "js/Result.h"  // Error, Ok, Result
   7 #include "js/String.h"  // JS_NewStringCopyZ
   8 #include "jsapi-tests/tests.h"
   9
  10 JS::Result<> SimpleSuccess(JSContext*) { return JS::Ok(); }
  11
  12 JS::Result<> SimpleFailure(JSContext*) { return JS::Result<>{JS::Error()}; }
  13
  14 JS::Result<int> PODSuccess(JSContext*) { return 42; }
  15
  16 JS::Result<int> PODFailure(JSContext*) { return JS::Result<int>{JS::Error()}; }
  17
  18 JS::Result<JSObject*> ObjectSuccess(JSContext* cx) {
  19   JS::RootedObject obj{cx, JS_NewPlainObject(cx)};
  20   MOZ_RELEASE_ASSERT(obj);
  21   return obj.get();
  22 }
  23
  24 JS::Result<JSObject*> ObjectFailure(JSContext*) {
  25   return JS::Result<JSObject*>{JS::Error()};
  26 }
  27
  28 JS::Result<JSString*> StringSuccess(JSContext* cx) {
  29   JS::RootedString str{cx, JS_NewStringCopyZ(cx, "foo")};
  30   MOZ_RELEASE_ASSERT(str);
  31   return str.get();
  32 }
  33
  34 JS::Result<JSString*> StringFailure(JSContext*) {
  35   return JS::Result<JSString*>{JS::Error()};
  36 }
  37
  38 BEGIN_TEST(testResult_SimpleSuccess) {
  39   JS::Result<> result = SimpleSuccess(cx);
  40   CHECK(result.isOk());
  41   return true;
  42 }
  43 END_TEST(testResult_SimpleSuccess)
  44
  45 BEGIN_TEST(testResult_SimpleFailure) {
  46   JS::Result<> result = SimpleFailure(cx);
  47   CHECK(result.isErr());
  48   return true;
  49 }
  50 END_TEST(testResult_SimpleFailure)
  51
  52 BEGIN_TEST(testResult_PODSuccess) {
  53   JS::Result<int> result = PODSuccess(cx);
  54   CHECK(result.isOk());
  55   CHECK_EQUAL(result.unwrap(), 42);
  56   CHECK_EQUAL(result.inspect(), 42);
  57   return true;
  58 }
  59 END_TEST(testResult_PODSuccess)
  60
  61 BEGIN_TEST(testResult_PODFailure) {
  62   JS::Result<int> result = PODFailure(cx);
  63   CHECK(result.isErr());
  64   return true;
  65 }
  66 END_TEST(testResult_PODFailure)
  67
  68 BEGIN_TEST(testResult_ObjectSuccess) {
  69   JS::Result<JSObject*> result = ObjectSuccess(cx);
  70   CHECK(result.isOk());
  71   CHECK(result.inspect() != nullptr);
  72   CHECK(result.unwrap() != nullptr);
  73   return true;
  74 }
  75 END_TEST(testResult_ObjectSuccess)
  76
  77 BEGIN_TEST(testResult_ObjectFailure) {
  78   JS::Result<JSObject*> result = ObjectFailure(cx);
  79   CHECK(result.isErr());
  80   return true;
  81 }
  82 END_TEST(testResult_ObjectFailure)
  83
  84 BEGIN_TEST(testResult_StringSuccess) {
  85   JS::Result<JSString*> result = StringSuccess(cx);
  86   CHECK(result.isOk());
  87   CHECK(result.inspect() != nullptr);
  88   CHECK(result.unwrap() != nullptr);
  89   return true;
  90 }
  91 END_TEST(testResult_StringSuccess)
  92
  93 BEGIN_TEST(testResult_StringFailure) {
  94   JS::Result<JSString*> result = StringFailure(cx);
  95   CHECK(result.isErr());
  96   return true;
  97 }
  98 END_TEST(testResult_StringFailure)