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Unified Diff: test/mjsunit/debug-liveedit-restart-frame.js

Issue 10544151: Support 'restart call frame' debug command (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: merge Created 8 years, 6 months ago
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Index: test/mjsunit/debug-liveedit-restart-frame.js
diff --git a/test/mjsunit/debug-liveedit-restart-frame.js b/test/mjsunit/debug-liveedit-restart-frame.js
new file mode 100644
index 0000000000000000000000000000000000000000..d978a9709fb0f7d394b9377d93b65c1fba1109c4
--- /dev/null
+++ b/test/mjsunit/debug-liveedit-restart-frame.js
@@ -0,0 +1,153 @@
+// Copyright 2012 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following
+// disclaimer in the documentation and/or other materials provided
+// with the distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Flags: --expose-debug-as debug
+// Get the Debug object exposed from the debug context global object.
+
+Debug = debug.Debug
+
+function FindCallFrame(exec_state, frame_code) {
+ var number = Number(frame_code);
+ if (number >= 0) {
+ return exec_state.frame(number);
+ } else {
+ for (var i = 0; i < exec_state.frameCount(); i++) {
+ var frame = exec_state.frame(i);
+ var func_mirror = frame.func();
+ if (frame_code == func_mirror.name()) {
+ return frame;
+ }
+ }
+ }
+ throw new Error("Failed to find function name " + function_name);
+}
+
+function TestCase(test_scenario, expected_output) {
+ // Global variable, accessed from eval'd script.
+ test_output = "";
+
+ function TestCode() {
+ function A() {
+ // Extra stack variable. To make function not slim.
+ // Restarter doesn't work on slim function when stopped on 'debugger'
+ // statement. (There is no padding for 'debugger' statement).
+ var o = {};
+ test_output += 'A';
+ test_output += '=';
+ debugger;
+ return 'Capybara';
+ }
+ function B(p1, p2) {
+ test_output += 'B';
+ return A();
+ }
+ function C() {
+ test_output += 'C';
+ // Function call with argument adaptor is intentional.
+ return B();
+ }
+ function D() {
+ test_output += 'D';
+ // Function call with argument adaptor is intentional.
+ return C(1, 2);
+ }
+ function E() {
+ test_output += 'E';
+ return D();
+ }
+ function F() {
+ test_output += 'F';
+ return E();
+ }
+ return F();
+ }
+
+ var scenario_pos = 0;
+
+ function DebuggerStatementHandler(exec_state) {
+ while (true) {
+ assertTrue(scenario_pos < test_scenario.length);
+ var change_code = test_scenario[scenario_pos++];
+ if (change_code == '=') {
+ // Continue.
+ return;
+ }
+ var frame = FindCallFrame(exec_state, change_code);
+ // Throws if fails.
+ Debug.LiveEdit.RestartFrame(frame);
+ }
+ }
+
+ var saved_exception = null;
+
+ function listener(event, exec_state, event_data, data) {
+ if (saved_exception != null) {
+ return;
+ }
+ if (event == Debug.DebugEvent.Break) {
+ try {
+ DebuggerStatementHandler(exec_state);
+ } catch (e) {
+ saved_exception = e;
+ }
+ } else {
+ print("Other: " + event);
+ }
+ }
+
+ Debug.setListener(listener);
+ assertEquals("Capybara", TestCode());
+ Debug.setListener(null);
+
+ if (saved_exception) {
+ print("Exception: " + saved_exception);
+ print("Stack: " + saved_exception.stack);
+ assertUnreachable();
+ }
+
+ print(test_output);
+
+ assertEquals(expected_output, test_output);
+}
+
+TestCase('0==', "FEDCBA=A=");
+TestCase('1==', "FEDCBA=BA=");
+TestCase('2==', "FEDCBA=CBA=");
+TestCase('3==', "FEDCBA=DCBA=");
+TestCase('4==', "FEDCBA=EDCBA=");
+TestCase('5==', "FEDCBA=FEDCBA=");
+
+TestCase('=', "FEDCBA=");
+
+TestCase('C==', "FEDCBA=CBA=");
+
+TestCase('B=C=A=D==', "FEDCBA=BA=CBA=A=DCBA=");
+
+// Successive restarts don't work now and require additional fix.
+//TestCase('BCDE==', "FEDCBA=EDCBA=");
+//TestCase('BC=BCDE==', "FEDCBA=CBA=EDCBA=");
+//TestCase('EF==', "FEDCBA=FEDCBA=");
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