v8/test/mjsunit/debug-script-breakpoints.js

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// Flags: --expose-debug-as debug
// Get the Debug object exposed from the debug context global object.
Debug = debug.Debug

// Set and remove a script break point for a named script.
var sbp = Debug.setScriptBreakPointByName("1", 2, 3);
assertEquals(1, Debug.scriptBreakPoints().length);
assertEquals("1", Debug.scriptBreakPoints()[0].script_name());
assertEquals(2, Debug.scriptBreakPoints()[0].line());
assertEquals(3, Debug.scriptBreakPoints()[0].column());
Debug.clearBreakPoint(sbp);
assertEquals(0, Debug.scriptBreakPoints().length);

// Set three script break points for named scripts.
var sbp1 = Debug.setScriptBreakPointByName("1", 2, 3);
var sbp2 = Debug.setScriptBreakPointByName("2", 3, 4);
var sbp3 = Debug.setScriptBreakPointByName("3", 4, 5);

// Check the content of the script break points.
assertEquals(3, Debug.scriptBreakPoints().length);
for (var i = 0; i < Debug.scriptBreakPoints().length; i++) {
  var x = Debug.scriptBreakPoints()[i];
  if ("1" == x.script_name()) {
    assertEquals(2, x.line());
    assertEquals(3, x.column());
  } else if ("2" == x.script_name()) {
    assertEquals(3, x.line());
    assertEquals(4, x.column());
  } else if ("3" == x.script_name()) {
    assertEquals(4, x.line());
    assertEquals(5, x.column());
  } else {
    assertUnreachable("unecpected script_name " + x.script_name());
  }
}

// Remove script break points (in another order than they where added).
assertEquals(3, Debug.scriptBreakPoints().length);
Debug.clearBreakPoint(sbp1);
assertEquals(2, Debug.scriptBreakPoints().length);
Debug.clearBreakPoint(sbp3);
assertEquals(1, Debug.scriptBreakPoints().length);
Debug.clearBreakPoint(sbp2);
assertEquals(0, Debug.scriptBreakPoints().length);

// Set and remove a script break point for a script id.
var sbp = Debug.setScriptBreakPointById(1, 2, 3);
assertEquals(1, Debug.scriptBreakPoints().length);
assertEquals(1, Debug.scriptBreakPoints()[0].script_id());
assertEquals(2, Debug.scriptBreakPoints()[0].line());
assertEquals(3, Debug.scriptBreakPoints()[0].column());
Debug.clearBreakPoint(sbp);
assertEquals(0, Debug.scriptBreakPoints().length);

// Set three script break points for script ids.
var sbp1 = Debug.setScriptBreakPointById(1, 2, 3);
var sbp2 = Debug.setScriptBreakPointById(2, 3, 4);
var sbp3 = Debug.setScriptBreakPointById(3, 4, 5);

// Check the content of the script break points.
assertEquals(3, Debug.scriptBreakPoints().length);
for (var i = 0; i < Debug.scriptBreakPoints().length; i++) {
  var x = Debug.scriptBreakPoints()[i];
  if (1 == x.script_id()) {
    assertEquals(2, x.line());
    assertEquals(3, x.column());
  } else if (2 == x.script_id()) {
    assertEquals(3, x.line());
    assertEquals(4, x.column());
  } else if (3 == x.script_id()) {
    assertEquals(4, x.line());
    assertEquals(5, x.column());
  } else {
    assertUnreachable("unecpected script_id " + x.script_id());
  }
}

// Remove script break points (in another order than they where added).
assertEquals(3, Debug.scriptBreakPoints().length);
Debug.clearBreakPoint(sbp1);
assertEquals(2, Debug.scriptBreakPoints().length);
Debug.clearBreakPoint(sbp3);
assertEquals(1, Debug.scriptBreakPoints().length);
Debug.clearBreakPoint(sbp2);
assertEquals(0, Debug.scriptBreakPoints().length);