1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*- */ 2 /* This Source Code Form is subject to the terms of the Mozilla Public 3 * License, v. 2.0. If a copy of the MPL was not distributed with this 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 5 6 // Test that the `JS::ubi::StackFrame`s we create from 7 // `mozilla::devtools::DeserializedStackFrame` instances look and behave as we 8 // would like. 9 10 #include "DevTools.h" 11 #include "js/TypeDecls.h" 12 #include "mozilla/devtools/DeserializedNode.h" 13 14 using testing::Field; 15 using testing::ReturnRef; 16 17 // A mock DeserializedStackFrame for testing. 18 struct MockDeserializedStackFrame : public DeserializedStackFrame { MockDeserializedStackFrameMockDeserializedStackFrame19 MockDeserializedStackFrame() : DeserializedStackFrame() {} 20 }; 21 22 DEF_TEST(DeserializedStackFrameUbiStackFrames, { 23 StackFrameId id = uint64_t(1) << 42; 24 uint32_t line = 1337; 25 uint32_t column = 9; // 3 space tabs!? 26 const char16_t* source = u"my-javascript-file.js"; 27 const char16_t* functionDisplayName = u"myFunctionName"; 28 29 MockDeserializedStackFrame mocked; 30 mocked.id = id; 31 mocked.line = line; 32 mocked.column = column; 33 mocked.source = source; 34 mocked.functionDisplayName = functionDisplayName; 35 36 DeserializedStackFrame& deserialized = mocked; 37 JS::ubi::StackFrame ubiFrame(&deserialized); 38 39 // Test the JS::ubi::StackFrame accessors. 40 41 EXPECT_EQ(id, ubiFrame.identifier()); 42 EXPECT_EQ(JS::ubi::StackFrame(), ubiFrame.parent()); 43 EXPECT_EQ(line, ubiFrame.line()); 44 EXPECT_EQ(column, ubiFrame.column()); 45 EXPECT_EQ(JS::ubi::AtomOrTwoByteChars(source), ubiFrame.source()); 46 EXPECT_EQ(JS::ubi::AtomOrTwoByteChars(functionDisplayName), 47 ubiFrame.functionDisplayName()); 48 EXPECT_FALSE(ubiFrame.isSelfHosted(cx)); 49 EXPECT_FALSE(ubiFrame.isSystem()); 50 51 JS::RootedObject savedFrame(cx); 52 EXPECT_TRUE(ubiFrame.constructSavedFrameStack(cx, &savedFrame)); 53 54 uint32_t frameLine; 55 ASSERT_EQ(JS::SavedFrameResult::Ok, 56 JS::GetSavedFrameLine(cx, savedFrame, &frameLine)); 57 EXPECT_EQ(line, frameLine); 58 59 uint32_t frameColumn; 60 ASSERT_EQ(JS::SavedFrameResult::Ok, 61 JS::GetSavedFrameColumn(cx, savedFrame, &frameColumn)); 62 EXPECT_EQ(column, frameColumn); 63 64 JS::RootedObject parent(cx); 65 ASSERT_EQ(JS::SavedFrameResult::Ok, 66 JS::GetSavedFrameParent(cx, savedFrame, &parent)); 67 EXPECT_EQ(nullptr, parent); 68 69 ASSERT_EQ(NS_strlen(source), 21U); 70 char16_t sourceBuf[21] = {}; 71 72 // Test when the length is shorter than the string length. 73 auto written = ubiFrame.source(RangedPtr<char16_t>(sourceBuf), 3); 74 EXPECT_EQ(written, 3U); 75 for (size_t i = 0; i < 3; i++) { 76 EXPECT_EQ(sourceBuf[i], source[i]); 77 } 78 79 written = ubiFrame.source(RangedPtr<char16_t>(sourceBuf), 21); 80 EXPECT_EQ(written, 21U); 81 for (size_t i = 0; i < 21; i++) { 82 EXPECT_EQ(sourceBuf[i], source[i]); 83 } 84 85 ASSERT_EQ(NS_strlen(functionDisplayName), 14U); 86 char16_t nameBuf[14] = {}; 87 88 written = ubiFrame.functionDisplayName(RangedPtr<char16_t>(nameBuf), 14); 89 EXPECT_EQ(written, 14U); 90 for (size_t i = 0; i < 14; i++) { 91 EXPECT_EQ(nameBuf[i], functionDisplayName[i]); 92 } 93 }); 94