/* Any copyright is dedicated to the Public Domain.
 * http://creativecommons.org/publicdomain/zero/1.0/ */

// Tests that the editor highlights the correct location when the
// debugger pauses

// checks to see if the first breakpoint is visible
function isElementVisible(dbg, elementName) {
  const bpLine = findElement(dbg, elementName);
  const cm = findElement(dbg, "codeMirror");
  return bpLine && isVisibleWithin(cm, bpLine);
}

add_task(function* () {
  // This test runs too slowly on linux debug. I'd like to figure out
  // which is the slowest part of this and make it run faster, but to
  // fix a frequent failure allow a longer timeout.
  requestLongerTimeout(2);

  const dbg = yield initDebugger("doc-scripts.html");
  const { selectors: { getSelectedSource }, getState } = dbg;
  const simple1 = findSource(dbg, "simple1.js");
  const simple2 = findSource(dbg, "simple2.js");

  // Set the initial breakpoint.
  yield addBreakpoint(dbg, simple1, 4);
  ok(!getSelectedSource(getState()), "No selected source");

  // Call the function that we set a breakpoint in.
  invokeInTab("main");
  yield waitForPaused(dbg);
  assertPausedLocation(dbg, simple1, 4);

  // Step through to another file and make sure it's paused in the
  // right place.
  yield stepIn(dbg);
  assertPausedLocation(dbg, simple2, 2);

  // Step back out to the initial file.
  yield stepOut(dbg);
  yield stepOut(dbg);
  assertPausedLocation(dbg, simple1, 5);
  yield resume(dbg);

  // Make sure that we can set a breakpoint on a line out of the
  // viewport, and that pausing there scrolls the editor to it.
  let longSrc = findSource(dbg, "long.js");
  yield addBreakpoint(dbg, longSrc, 66);

  invokeInTab("testModel");
  yield waitForPaused(dbg);
  assertPausedLocation(dbg, longSrc, 66);
  ok(isElementVisible(dbg, "breakpoint"), "Breakpoint is visible");
});