[dygraphs.git] / auto_tests / tests / interaction_model.js

/** 
 * @fileoverview Test cases for the interaction model.
 *
 * @author konigsberg@google.com (Robert Konigsbrg)
 */
var InteractionModelTestCase = TestCase("interaction-model");

InteractionModelTestCase.prototype.setUp = function() {
  document.body.innerHTML = "<div id='graph'></div>";
};

InteractionModelTestCase.prototype.tearDown = function() {
};

var data1 = "X,Y\n" +
    "20,-1\n" +
    "21,0\n" +
    "22,1\n" +
    "23,0\n";

var data2 =
    [[1, 10],
    [2, 20],
    [3, 30],
    [4, 40],
    [5, 120],
    [6, 50],
    [7, 70],
    [8, 90],
    [9, 50]];

function getXLabels() {
  var x_labels = document.getElementsByClassName("dygraph-axis-label-x");
  var ary = [];
  for (var i = 0; i < x_labels.length; i++) {
    ary.push(x_labels[i].innerHTML);
  }
  return ary;
}

InteractionModelTestCase.prototype.pan = function(g, xRange, yRange) {
  var originalXRange = g.xAxisRange();
  var originalYRange = g.yAxisRange(0);

  DygraphOps.dispatchMouseDown(g, xRange[0], yRange[0]);
  DygraphOps.dispatchMouseMove(g, xRange[1], yRange[0]); // this is really necessary.
  DygraphOps.dispatchMouseUp(g, xRange[1], yRange[0]);

  assertEqualsDelta(xRange, g.xAxisRange(), 0.2);
  // assertEqualsDelta(originalYRange, g.yAxisRange(0), 0.2); // Not true, it's something in the middle.

  var midX = (xRange[1] - xRange[0]) / 2;
  DygraphOps.dispatchMouseDown(g, midX, yRange[0]);
  DygraphOps.dispatchMouseMove(g, midX, yRange[1]); // this is really necessary.
  DygraphOps.dispatchMouseUp(g, midX, yRange[1]);

  assertEqualsDelta(xRange, g.xAxisRange(), 0.2);
  assertEqualsDelta(yRange, g.yAxisRange(0), 0.2);
}

/**
 * This tests that when changing the interaction model so pan is used instead
 * of zoom as the default behavior, a standard click method is still called.
 */
InteractionModelTestCase.prototype.testClickCallbackIsCalled = function() {
  var clicked;

  var clickCallback = function(event, x) {
    clicked = x;
  };

  var graph = document.getElementById("graph");
  var g = new Dygraph(graph, data1,
      {
        width: 100,
        height : 100,
        clickCallback : clickCallback
      });

  DygraphOps.dispatchMouseDown_Point(g, 10, 10);
  DygraphOps.dispatchMouseMove_Point(g, 10, 10);
  DygraphOps.dispatchMouseUp_Point(g, 10, 10);

  assertEquals(20, clicked);
};

/**
 * This tests that when changing the interaction model so pan is used instead
 * of zoom as the default behavior, a standard click method is still called.
 */
InteractionModelTestCase.prototype.testClickCallbackIsCalledOnCustomPan = function() {
  var clicked;

  var clickCallback = function(event, x) {
    clicked = x;
  };

  function customDown(event, g, context) {
    context.initializeMouseDown(event, g, context);
    Dygraph.startPan(event, g, context);
  }

  function customMove(event, g, context) {
    Dygraph.movePan(event, g, context);
  }

  function customUp(event, g, context) {
    Dygraph.endPan(event, g, context);
  }

  var opts = {
    width: 100,
    height : 100,
    clickCallback : clickCallback,
    interactionModel : {
      'mousedown' : customDown,
      'mousemove' : customMove,
      'mouseup' : customUp,
    }
  };

  var graph = document.getElementById("graph");
  var g = new Dygraph(graph, data1, opts);

  DygraphOps.dispatchMouseDown_Point(g, 10, 10);
  DygraphOps.dispatchMouseMove_Point(g, 10, 10);
  DygraphOps.dispatchMouseUp_Point(g, 10, 10);

  assertEquals(20, clicked);
};

InteractionModelTestCase.clickAt = function(g, x, y) {
  DygraphOps.dispatchMouseDown(g, x, y);
  DygraphOps.dispatchMouseMove(g, x, y);
  DygraphOps.dispatchMouseUp(g, x, y);
}

/**
 * This tests that clickCallback is still called with the nonInteractiveModel.
 */
InteractionModelTestCase.prototype.testClickCallbackIsCalledWithNonInteractiveModel = function() {
  var clicked;

  // TODO(danvk): also test pointClickCallback here.
  var clickCallback = function(event, x) {
    clicked = x;
  };

  var opts = {
    width: 100,
    height : 100,
    clickCallback : clickCallback,
    interactionModel : Dygraph.Interaction.nonInteractiveModel_
  };

  var graph = document.getElementById("graph");
  var g = new Dygraph(graph, data1, opts);

  DygraphOps.dispatchMouseDown_Point(g, 10, 10);
  DygraphOps.dispatchMouseMove_Point(g, 10, 10);
  DygraphOps.dispatchMouseUp_Point(g, 10, 10);

  assertEquals(20, clicked);
};

/**
 * A sanity test to ensure pointClickCallback is called.
 */
InteractionModelTestCase.prototype.testPointClickCallback = function() {
  var clicked;
  var g = new Dygraph(document.getElementById("graph"), data2, {
    pointClickCallback : function(event, point) {
      clicked = point;
    }
  });

  InteractionModelTestCase.clickAt(g, 4, 40);

  assertEquals(4, clicked.xval);
  assertEquals(40, clicked.yval);
};

/**
 * A sanity test to ensure pointClickCallback is not called when out of range.
 */
InteractionModelTestCase.prototype.testNoPointClickCallbackWhenOffPoint = function() {
  var clicked;
  var g = new Dygraph(document.getElementById("graph"), data2, {
    pointClickCallback : function(event, point) {
      clicked = point;
    }
  });

  InteractionModelTestCase.clickAt(g, 5, 40);

  assertUndefined(clicked);
};

/**
 * Ensures pointClickCallback circle size is taken into account.
 */
InteractionModelTestCase.prototype.testPointClickCallback_circleSize = function() {
  // TODO(konigsberg): Implement.
};

/**
 * Ensures that pointClickCallback is called prior to clickCallback
 */
InteractionModelTestCase.prototype.testPointClickCallbackCalledPriorToClickCallback = function() {
  var counter = 0;
  var pointClicked;
  var clicked;
  var g = new Dygraph(document.getElementById("graph"), data2, {
    pointClickCallback : function(event, point) {
      counter++;
      pointClicked = counter;
    },
    clickCallback : function(event, point) {
      counter++;
      clicked = counter;
    }
  });

  InteractionModelTestCase.clickAt(g, 4, 40);
  assertEquals(1, pointClicked);
  assertEquals(2, clicked);
};

/**
 * Ensures that when there's no pointClickCallback, clicking on a point still calls
 * clickCallback
 */
InteractionModelTestCase.prototype.testClickCallback_clickOnPoint = function() {
  var clicked;
  var g = new Dygraph(document.getElementById("graph"), data2, {
    clickCallback : function(event, point) {
      clicked = 1;
    }
  });

  InteractionModelTestCase.clickAt(g, 4, 40);
  assertEquals(1, clicked);
};

InteractionModelTestCase.prototype.testIsZoomed_none = function() {
  var g = new Dygraph(document.getElementById("graph"), data2, {});

  assertFalse(g.isZoomed());
  assertFalse(g.isZoomed("x"));
  assertFalse(g.isZoomed("y"));
};

InteractionModelTestCase.prototype.testIsZoomed_x = function() {
  var g = new Dygraph(document.getElementById("graph"), data2, {});

  DygraphOps.dispatchMouseDown_Point(g, 100, 100);
  DygraphOps.dispatchMouseMove_Point(g, 130, 100);
  DygraphOps.dispatchMouseUp_Point(g, 130, 100);

  assertTrue(g.isZoomed());
  assertTrue(g.isZoomed("x"));
  assertFalse(g.isZoomed("y"));
};

InteractionModelTestCase.prototype.testIsZoomed_y = function() {
  var g = new Dygraph(document.getElementById("graph"), data2, {});

  DygraphOps.dispatchMouseDown_Point(g, 10, 10);
  DygraphOps.dispatchMouseMove_Point(g, 10, 30);
  DygraphOps.dispatchMouseUp_Point(g, 10, 30);

  assertTrue(g.isZoomed());
  assertFalse(g.isZoomed("x"));
  assertTrue(g.isZoomed("y"));
};

InteractionModelTestCase.prototype.testIsZoomed_both = function() {
  var g = new Dygraph(document.getElementById("graph"), data2, {});

  // Zoom x axis
  DygraphOps.dispatchMouseDown_Point(g, 100, 100);
  DygraphOps.dispatchMouseMove_Point(g, 130, 100);
  DygraphOps.dispatchMouseUp_Point(g, 130, 100);

  // Now zoom y axis
  DygraphOps.dispatchMouseDown_Point(g, 100, 100);
  DygraphOps.dispatchMouseMove_Point(g, 100, 130);
  DygraphOps.dispatchMouseUp_Point(g, 100, 130);


  assertTrue(g.isZoomed());
  assertTrue(g.isZoomed("x"));
  assertTrue(g.isZoomed("y"));
};

InteractionModelTestCase.prototype.testIsZoomed_updateOptions_none = function() {
  var g = new Dygraph(document.getElementById("graph"), data2, {});

  g.updateOptions({});

  assertFalse(g.isZoomed());
  assertFalse(g.isZoomed("x"));
  assertFalse(g.isZoomed("y"));
};

InteractionModelTestCase.prototype.testIsZoomed_updateOptions_x = function() {
  var g = new Dygraph(document.getElementById("graph"), data2, {});

  g.updateOptions({dateWindow: [-.5, .3]});
  assertTrue(g.isZoomed());
  assertTrue(g.isZoomed("x"));
  assertFalse(g.isZoomed("y"));
};

InteractionModelTestCase.prototype.testIsZoomed_updateOptions_y = function() {
  var g = new Dygraph(document.getElementById("graph"), data2, {});

  g.updateOptions({valueRange: [1, 10]});

  assertTrue(g.isZoomed());
  assertFalse(g.isZoomed("x"));
  assertTrue(g.isZoomed("y"));
};

InteractionModelTestCase.prototype.testIsZoomed_updateOptions_both = function() {
  var g = new Dygraph(document.getElementById("graph"), data2, {});

  g.updateOptions({dateWindow: [-1, 1], valueRange: [1, 10]});

  assertTrue(g.isZoomed());
  assertTrue(g.isZoomed("x"));
  assertTrue(g.isZoomed("y"));
};


InteractionModelTestCase.prototype.testCorrectAxisValueRangeAfterUnzoom = function() {
  var g = new Dygraph(document.getElementById("graph"),
      data2, {
        valueRange: [1, 50],
        dateWindow: [1, 9],
        animatedZooms:false
      });
  
  // Zoom x axis
  DygraphOps.dispatchMouseDown_Point(g, 100, 100);
  DygraphOps.dispatchMouseMove_Point(g, 130, 100);
  DygraphOps.dispatchMouseUp_Point(g, 130, 100);

  // Zoom y axis
  DygraphOps.dispatchMouseDown_Point(g, 100, 100);
  DygraphOps.dispatchMouseMove_Point(g, 100, 130);
  DygraphOps.dispatchMouseUp_Point(g, 100, 130);
  currentYAxisRange = g.yAxisRange();
  currentXAxisRange = g.xAxisRange();
  
  //check that the range for the axis has changed
  assertNotEquals(1, currentXAxisRange[0]);
  assertNotEquals(10, currentXAxisRange[1]);
  assertNotEquals(1, currentYAxisRange[0]);
  assertNotEquals(50, currentYAxisRange[1]);
  
  // unzoom by doubleclick.  This is really the order in which a browser
  // generates events, and we depend on it.
  DygraphOps.dispatchMouseDown_Point(g, 10, 10);
  DygraphOps.dispatchMouseUp_Point(g, 10, 10);
  DygraphOps.dispatchMouseDown_Point(g, 10, 10);
  DygraphOps.dispatchMouseUp_Point(g, 10, 10);
  DygraphOps.dispatchDoubleClick(g, null);
  
  // check if range for y-axis was reset to original value 
  // TODO check if range for x-axis is correct. 
  // Currently not possible because dateRange is set to null and extremes are returned
  newYAxisRange = g.yAxisRange();
  assertEquals(1, newYAxisRange[0]);
  assertEquals(50, newYAxisRange[1]);
};

/**
 * Ensures pointClickCallback is called when some points along the y-axis don't
 * exist.
 */
InteractionModelTestCase.prototype.testPointClickCallback_missingData = function() {

  // There's a B-value at 2, but no A-value.
  var data =
    "X,A,B\n" +
    "1,,100\n"+
    "2,,110\n"+
    "3,140,120\n"+
    "4,130,110\n"+
    "";

  var clicked;
  var g = new Dygraph(document.getElementById("graph"), data, {
    pointClickCallback : function(event, point) {
      clicked = point;
    }
  });

  InteractionModelTestCase.clickAt(g, 2, 110);

  assertEquals(2, clicked.xval);
  assertEquals(110, clicked.yval);
};
Commit	Line	Data
	1	/**
	2	* @fileoverview Test cases for the interaction model.
	3	*
	4	* @author konigsberg@google.com (Robert Konigsbrg)
	5	*/
	6	var InteractionModelTestCase = TestCase("interaction-model");
	7
	8	InteractionModelTestCase.prototype.setUp = function() {
	9	document.body.innerHTML = "<div id='graph'></div>";
	10	};
	11
	12	InteractionModelTestCase.prototype.tearDown = function() {
	13	};
	14
	15	var data1 = "X,Y\n" +
	16	"20,-1\n" +
	17	"21,0\n" +
	18	"22,1\n" +
	19	"23,0\n";
	20
	21	var data2 =
	22	[[1, 10],
	23	[2, 20],
	24	[3, 30],
	25	[4, 40],
	26	[5, 120],
	27	[6, 50],
	28	[7, 70],
	29	[8, 90],
	30	[9, 50]];
	31
	32	function getXLabels() {
	33	var x_labels = document.getElementsByClassName("dygraph-axis-label-x");
	34	var ary = [];
	35	for (var i = 0; i < x_labels.length; i++) {
	36	ary.push(x_labels[i].innerHTML);
	37	}
	38	return ary;
	39	}
	40
	41	InteractionModelTestCase.prototype.pan = function(g, xRange, yRange) {
	42	var originalXRange = g.xAxisRange();
	43	var originalYRange = g.yAxisRange(0);
	44
	45	DygraphOps.dispatchMouseDown(g, xRange[0], yRange[0]);
	46	DygraphOps.dispatchMouseMove(g, xRange[1], yRange[0]); // this is really necessary.
	47	DygraphOps.dispatchMouseUp(g, xRange[1], yRange[0]);
	48
	49	assertEqualsDelta(xRange, g.xAxisRange(), 0.2);
	50	// assertEqualsDelta(originalYRange, g.yAxisRange(0), 0.2); // Not true, it's something in the middle.
	51
	52	var midX = (xRange[1] - xRange[0]) / 2;
	53	DygraphOps.dispatchMouseDown(g, midX, yRange[0]);
	54	DygraphOps.dispatchMouseMove(g, midX, yRange[1]); // this is really necessary.
	55	DygraphOps.dispatchMouseUp(g, midX, yRange[1]);
	56
	57	assertEqualsDelta(xRange, g.xAxisRange(), 0.2);
	58	assertEqualsDelta(yRange, g.yAxisRange(0), 0.2);
	59	}
	60
	61	/**
	62	* This tests that when changing the interaction model so pan is used instead
	63	* of zoom as the default behavior, a standard click method is still called.
	64	*/
	65	InteractionModelTestCase.prototype.testClickCallbackIsCalled = function() {
	66	var clicked;
	67
	68	var clickCallback = function(event, x) {
	69	clicked = x;
	70	};
	71
	72	var graph = document.getElementById("graph");
	73	var g = new Dygraph(graph, data1,
	74	{
	75	width: 100,
	76	height : 100,
	77	clickCallback : clickCallback
	78	});
	79
	80	DygraphOps.dispatchMouseDown_Point(g, 10, 10);
	81	DygraphOps.dispatchMouseMove_Point(g, 10, 10);
	82	DygraphOps.dispatchMouseUp_Point(g, 10, 10);
	83
	84	assertEquals(20, clicked);
	85	};
	86
	87	/**
	88	* This tests that when changing the interaction model so pan is used instead
	89	* of zoom as the default behavior, a standard click method is still called.
	90	*/
	91	InteractionModelTestCase.prototype.testClickCallbackIsCalledOnCustomPan = function() {
	92	var clicked;
	93
	94	var clickCallback = function(event, x) {
	95	clicked = x;
	96	};
	97
	98	function customDown(event, g, context) {
	99	context.initializeMouseDown(event, g, context);
	100	Dygraph.startPan(event, g, context);
	101	}
	102
	103	function customMove(event, g, context) {
	104	Dygraph.movePan(event, g, context);
	105	}
	106
	107	function customUp(event, g, context) {
	108	Dygraph.endPan(event, g, context);
	109	}
	110
	111	var opts = {
	112	width: 100,
	113	height : 100,
	114	clickCallback : clickCallback,
	115	interactionModel : {
	116	'mousedown' : customDown,
	117	'mousemove' : customMove,
	118	'mouseup' : customUp,
	119	}
	120	};
	121
	122	var graph = document.getElementById("graph");
	123	var g = new Dygraph(graph, data1, opts);
	124
	125	DygraphOps.dispatchMouseDown_Point(g, 10, 10);
	126	DygraphOps.dispatchMouseMove_Point(g, 10, 10);
	127	DygraphOps.dispatchMouseUp_Point(g, 10, 10);
	128
	129	assertEquals(20, clicked);
	130	};
	131
	132	InteractionModelTestCase.clickAt = function(g, x, y) {
	133	DygraphOps.dispatchMouseDown(g, x, y);
	134	DygraphOps.dispatchMouseMove(g, x, y);
	135	DygraphOps.dispatchMouseUp(g, x, y);
	136	}
	137
	138	/**
	139	* This tests that clickCallback is still called with the nonInteractiveModel.
	140	*/
	141	InteractionModelTestCase.prototype.testClickCallbackIsCalledWithNonInteractiveModel = function() {
	142	var clicked;
	143
	144	// TODO(danvk): also test pointClickCallback here.
	145	var clickCallback = function(event, x) {
	146	clicked = x;
	147	};
	148
	149	var opts = {
	150	width: 100,
	151	height : 100,
	152	clickCallback : clickCallback,
	153	interactionModel : Dygraph.Interaction.nonInteractiveModel_
	154	};
	155
	156	var graph = document.getElementById("graph");
	157	var g = new Dygraph(graph, data1, opts);
	158
	159	DygraphOps.dispatchMouseDown_Point(g, 10, 10);
	160	DygraphOps.dispatchMouseMove_Point(g, 10, 10);
	161	DygraphOps.dispatchMouseUp_Point(g, 10, 10);
	162
	163	assertEquals(20, clicked);
	164	};
	165
	166	/**
	167	* A sanity test to ensure pointClickCallback is called.
	168	*/
	169	InteractionModelTestCase.prototype.testPointClickCallback = function() {
	170	var clicked;
	171	var g = new Dygraph(document.getElementById("graph"), data2, {
	172	pointClickCallback : function(event, point) {
	173	clicked = point;
	174	}
	175	});
	176
	177	InteractionModelTestCase.clickAt(g, 4, 40);
	178
	179	assertEquals(4, clicked.xval);
	180	assertEquals(40, clicked.yval);
	181	};
	182
	183	/**
	184	* A sanity test to ensure pointClickCallback is not called when out of range.
	185	*/
	186	InteractionModelTestCase.prototype.testNoPointClickCallbackWhenOffPoint = function() {
	187	var clicked;
	188	var g = new Dygraph(document.getElementById("graph"), data2, {
	189	pointClickCallback : function(event, point) {
	190	clicked = point;
	191	}
	192	});
	193
	194	InteractionModelTestCase.clickAt(g, 5, 40);
	195
	196	assertUndefined(clicked);
	197	};
	198
	199	/**
	200	* Ensures pointClickCallback circle size is taken into account.
	201	*/
	202	InteractionModelTestCase.prototype.testPointClickCallback_circleSize = function() {
	203	// TODO(konigsberg): Implement.
	204	};
	205
	206	/**
	207	* Ensures that pointClickCallback is called prior to clickCallback
	208	*/
	209	InteractionModelTestCase.prototype.testPointClickCallbackCalledPriorToClickCallback = function() {
	210	var counter = 0;
	211	var pointClicked;
	212	var clicked;
	213	var g = new Dygraph(document.getElementById("graph"), data2, {
	214	pointClickCallback : function(event, point) {
	215	counter++;
	216	pointClicked = counter;
	217	},
	218	clickCallback : function(event, point) {
	219	counter++;
	220	clicked = counter;
	221	}
	222	});
	223
	224	InteractionModelTestCase.clickAt(g, 4, 40);
	225	assertEquals(1, pointClicked);
	226	assertEquals(2, clicked);
	227	};
	228
	229	/**
	230	* Ensures that when there's no pointClickCallback, clicking on a point still calls
	231	* clickCallback
	232	*/
	233	InteractionModelTestCase.prototype.testClickCallback_clickOnPoint = function() {
	234	var clicked;
	235	var g = new Dygraph(document.getElementById("graph"), data2, {
	236	clickCallback : function(event, point) {
	237	clicked = 1;
	238	}
	239	});
	240
	241	InteractionModelTestCase.clickAt(g, 4, 40);
	242	assertEquals(1, clicked);
	243	};
	244
	245	InteractionModelTestCase.prototype.testIsZoomed_none = function() {
	246	var g = new Dygraph(document.getElementById("graph"), data2, {});
	247
	248	assertFalse(g.isZoomed());
	249	assertFalse(g.isZoomed("x"));
	250	assertFalse(g.isZoomed("y"));
	251	};
	252
	253	InteractionModelTestCase.prototype.testIsZoomed_x = function() {
	254	var g = new Dygraph(document.getElementById("graph"), data2, {});
	255
	256	DygraphOps.dispatchMouseDown_Point(g, 100, 100);
	257	DygraphOps.dispatchMouseMove_Point(g, 130, 100);
	258	DygraphOps.dispatchMouseUp_Point(g, 130, 100);
	259
	260	assertTrue(g.isZoomed());
	261	assertTrue(g.isZoomed("x"));
	262	assertFalse(g.isZoomed("y"));
	263	};
	264
	265	InteractionModelTestCase.prototype.testIsZoomed_y = function() {
	266	var g = new Dygraph(document.getElementById("graph"), data2, {});
	267
	268	DygraphOps.dispatchMouseDown_Point(g, 10, 10);
	269	DygraphOps.dispatchMouseMove_Point(g, 10, 30);
	270	DygraphOps.dispatchMouseUp_Point(g, 10, 30);
	271
	272	assertTrue(g.isZoomed());
	273	assertFalse(g.isZoomed("x"));
	274	assertTrue(g.isZoomed("y"));
	275	};
	276
	277	InteractionModelTestCase.prototype.testIsZoomed_both = function() {
	278	var g = new Dygraph(document.getElementById("graph"), data2, {});
	279
	280	// Zoom x axis
	281	DygraphOps.dispatchMouseDown_Point(g, 100, 100);
	282	DygraphOps.dispatchMouseMove_Point(g, 130, 100);
	283	DygraphOps.dispatchMouseUp_Point(g, 130, 100);
	284
	285	// Now zoom y axis
	286	DygraphOps.dispatchMouseDown_Point(g, 100, 100);
	287	DygraphOps.dispatchMouseMove_Point(g, 100, 130);
	288	DygraphOps.dispatchMouseUp_Point(g, 100, 130);
	289
	290
	291	assertTrue(g.isZoomed());
	292	assertTrue(g.isZoomed("x"));
	293	assertTrue(g.isZoomed("y"));
	294	};
	295
	296	InteractionModelTestCase.prototype.testIsZoomed_updateOptions_none = function() {
	297	var g = new Dygraph(document.getElementById("graph"), data2, {});
	298
	299	g.updateOptions({});
	300
	301	assertFalse(g.isZoomed());
	302	assertFalse(g.isZoomed("x"));
	303	assertFalse(g.isZoomed("y"));
	304	};
	305
	306	InteractionModelTestCase.prototype.testIsZoomed_updateOptions_x = function() {
	307	var g = new Dygraph(document.getElementById("graph"), data2, {});
	308
	309	g.updateOptions({dateWindow: [-.5, .3]});
	310	assertTrue(g.isZoomed());
	311	assertTrue(g.isZoomed("x"));
	312	assertFalse(g.isZoomed("y"));
	313	};
	314
	315	InteractionModelTestCase.prototype.testIsZoomed_updateOptions_y = function() {
	316	var g = new Dygraph(document.getElementById("graph"), data2, {});
	317
	318	g.updateOptions({valueRange: [1, 10]});
	319
	320	assertTrue(g.isZoomed());
	321	assertFalse(g.isZoomed("x"));
	322	assertTrue(g.isZoomed("y"));
	323	};
	324
	325	InteractionModelTestCase.prototype.testIsZoomed_updateOptions_both = function() {
	326	var g = new Dygraph(document.getElementById("graph"), data2, {});
	327
	328	g.updateOptions({dateWindow: [-1, 1], valueRange: [1, 10]});
	329
	330	assertTrue(g.isZoomed());
	331	assertTrue(g.isZoomed("x"));
	332	assertTrue(g.isZoomed("y"));
	333	};
	334
	335
	336	InteractionModelTestCase.prototype.testCorrectAxisValueRangeAfterUnzoom = function() {
	337	var g = new Dygraph(document.getElementById("graph"),
	338	data2, {
	339	valueRange: [1, 50],
	340	dateWindow: [1, 9],
	341	animatedZooms:false
	342	});
	343
	344	// Zoom x axis
	345	DygraphOps.dispatchMouseDown_Point(g, 100, 100);
	346	DygraphOps.dispatchMouseMove_Point(g, 130, 100);
	347	DygraphOps.dispatchMouseUp_Point(g, 130, 100);
	348
	349	// Zoom y axis
	350	DygraphOps.dispatchMouseDown_Point(g, 100, 100);
	351	DygraphOps.dispatchMouseMove_Point(g, 100, 130);
	352	DygraphOps.dispatchMouseUp_Point(g, 100, 130);
	353	currentYAxisRange = g.yAxisRange();
	354	currentXAxisRange = g.xAxisRange();
	355
	356	//check that the range for the axis has changed
	357	assertNotEquals(1, currentXAxisRange[0]);
	358	assertNotEquals(10, currentXAxisRange[1]);
	359	assertNotEquals(1, currentYAxisRange[0]);
	360	assertNotEquals(50, currentYAxisRange[1]);
	361
	362	// unzoom by doubleclick. This is really the order in which a browser
	363	// generates events, and we depend on it.
	364	DygraphOps.dispatchMouseDown_Point(g, 10, 10);
	365	DygraphOps.dispatchMouseUp_Point(g, 10, 10);
	366	DygraphOps.dispatchMouseDown_Point(g, 10, 10);
	367	DygraphOps.dispatchMouseUp_Point(g, 10, 10);
	368	DygraphOps.dispatchDoubleClick(g, null);
	369
	370	// check if range for y-axis was reset to original value
	371	// TODO check if range for x-axis is correct.
	372	// Currently not possible because dateRange is set to null and extremes are returned
	373	newYAxisRange = g.yAxisRange();
	374	assertEquals(1, newYAxisRange[0]);
	375	assertEquals(50, newYAxisRange[1]);
	376	};
	377
	378	/**
	379	* Ensures pointClickCallback is called when some points along the y-axis don't
	380	* exist.
	381	*/
	382	InteractionModelTestCase.prototype.testPointClickCallback_missingData = function() {
	383
	384	// There's a B-value at 2, but no A-value.
	385	var data =
	386	"X,A,B\n" +
	387	"1,,100\n"+
	388	"2,,110\n"+
	389	"3,140,120\n"+
	390	"4,130,110\n"+
	391	"";
	392
	393	var clicked;
	394	var g = new Dygraph(document.getElementById("graph"), data, {
	395	pointClickCallback : function(event, point) {
	396	clicked = point;
	397	}
	398	});
	399
	400	InteractionModelTestCase.clickAt(g, 2, 110);
	401
	402	assertEquals(2, clicked.xval);
	403	assertEquals(110, clicked.yval);
	404	};