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diff --git a/contexts/data/lib/closure-library/closure/goog/vec/vec2_test.html b/contexts/data/lib/closure-library/closure/goog/vec/vec2_test.html
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--- a/contexts/data/lib/closure-library/closure/goog/vec/vec2_test.html
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@@ -1,216 +0,0 @@
-<!DOCTYPE html>
-<html>
-<!--
-Copyright 2012 The Closure Library Authors. All Rights Reserved.
-
-Use of this source code is governed by the Apache License, Version 2.0.
-See the COPYING file for details.
--->
-<head>
-<meta http-equiv="X-UA-Compatible" content="IE=edge">
-<title>Closure Unit Tests - goog.vec.Vec2</title>
-<script src="../base.js"></script>
-<script>
-  goog.require('goog.vec.Float32Array');
-  goog.require('goog.vec.Vec2');
-  goog.require('goog.testing.jsunit');
-</script>
-</head>
-<body>
-<script>
-
-  function testConstructor() {
-    var v = goog.vec.Vec2.createFloat32();
-    assertElementsEquals(0, v[0]);
-    assertEquals(0, v[1]);
-
-    assertElementsEquals([0, 0], goog.vec.Vec2.createFloat32());
-
-    goog.vec.Vec2.setFromValues(v, 1, 2);
-    assertElementsEquals([1, 2], v);
-
-    var w = goog.vec.Vec2.createFloat64();
-    assertElementsEquals(0, w[0]);
-    assertEquals(0, w[1]);
-
-    assertElementsEquals([0, 0], goog.vec.Vec2.createFloat64());
-
-    goog.vec.Vec2.setFromValues(w, 1, 2);
-    assertElementsEquals([1, 2], w);
-  }
-
-
-  function testSet() {
-    var v = goog.vec.Vec2.createFloat32();
-    goog.vec.Vec2.setFromValues(v, 1, 2);
-    assertElementsEquals([1, 2], v);
-
-    goog.vec.Vec2.setFromArray(v, [4, 5]);
-    assertElementsEquals([4, 5], v);
-
-    var w = goog.vec.Vec2.createFloat32();
-    goog.vec.Vec2.setFromValues(w, 1, 2);
-    assertElementsEquals([1, 2], w);
-
-    goog.vec.Vec2.setFromArray(w, [4, 5]);
-    assertElementsEquals([4, 5], w);
-  }
-
-  function testAdd() {
-    var v0 = goog.vec.Vec2.createFloat32FromArray([1, 2]);
-    var v1 = goog.vec.Vec2.createFloat32FromArray([4, 5]);
-    var v2 = goog.vec.Vec2.cloneFloat32(v0);
-
-    goog.vec.Vec2.add(v2, v1, v2);
-    assertElementsEquals([1, 2], v0);
-    assertElementsEquals([4, 5], v1);
-    assertElementsEquals([5, 7], v2);
-
-    goog.vec.Vec2.add(goog.vec.Vec2.add(v0, v1, v2), v0, v2);
-    assertElementsEquals([6, 9], v2);
-  }
-
-  function testSubtract() {
-    var v0 = goog.vec.Vec2.createFloat32FromArray([1, 2]);
-    var v1 = goog.vec.Vec2.createFloat32FromArray([4, 5]);
-    var v2 = goog.vec.Vec2.cloneFloat32(v0);
-
-    goog.vec.Vec2.subtract(v2, v1, v2);
-    assertElementsEquals([1, 2], v0);
-    assertElementsEquals([4, 5], v1);
-    assertElementsEquals([-3, -3], v2);
-
-    goog.vec.Vec2.setFromValues(v2, 0, 0, 0);
-    goog.vec.Vec2.subtract(v1, v0, v2);
-    assertElementsEquals([3, 3], v2);
-
-    v2 = goog.vec.Vec2.cloneFloat32(v0);
-    goog.vec.Vec2.subtract(v2, v1, v2);
-    assertElementsEquals([-3, -3], v2);
-
-    goog.vec.Vec2.subtract(goog.vec.Vec2.subtract(v1, v0, v2), v0, v2);
-    assertElementsEquals([2, 1], v2);
-  }
-
-  function testNegate() {
-    var v0 = goog.vec.Vec2.createFloat32FromArray([1, 2]);
-    var v1 = goog.vec.Vec2.createFloat32();
-
-    goog.vec.Vec2.negate(v0, v1);
-    assertElementsEquals([-1, -2], v1);
-    assertElementsEquals([1, 2], v0);
-
-    goog.vec.Vec2.negate(v0, v0);
-    assertElementsEquals([-1, -2], v0);
-  }
-
-  function testScale() {
-    var v0 = goog.vec.Vec2.createFloat32FromArray([1, 2]);
-    var v1 = goog.vec.Vec2.createFloat32();
-
-    goog.vec.Vec2.scale(v0, 4, v1);
-    assertElementsEquals([4, 8], v1);
-    assertElementsEquals([1, 2], v0);
-
-    goog.vec.Vec2.setFromArray(v1, v0);
-    goog.vec.Vec2.scale(v1, 5, v1);
-    assertElementsEquals([5, 10], v1);
-  }
-
-  function testMagnitudeSquared() {
-    var v0 = goog.vec.Vec2.createFloat32FromArray([1, 2]);
-    assertEquals(5, goog.vec.Vec2.magnitudeSquared(v0));
-  }
-
-  function testMagnitude() {
-    var v0 = goog.vec.Vec2.createFloat32FromArray([1, 2]);
-    assertEquals(Math.sqrt(5), goog.vec.Vec2.magnitude(v0));
-  }
-
-  function testNormalize() {
-    var v0 = goog.vec.Vec2.createFloat32FromArray([2, 3]);
-    var v1 = goog.vec.Vec2.createFloat32();
-    var v2 = goog.vec.Vec2.createFloat32();
-    goog.vec.Vec2.scale(
-        v0, 1 / goog.vec.Vec2.magnitude(v0), v2);
-
-    goog.vec.Vec2.normalize(v0, v1);
-    assertElementsEquals(v2, v1);
-    assertElementsEquals([2, 3], v0);
-
-    goog.vec.Vec2.setFromArray(v1, v0);
-    goog.vec.Vec2.normalize(v1, v1);
-    assertElementsEquals(v2, v1);
-  }
-
-  function testDot() {
-    var v0 = goog.vec.Vec2.createFloat32FromArray([1, 2]);
-    var v1 = goog.vec.Vec2.createFloat32FromArray([4, 5]);
-    assertEquals(14, goog.vec.Vec2.dot(v0, v1));
-    assertEquals(14, goog.vec.Vec2.dot(v1, v0));
-  }
-
-  function testDistanceSquared() {
-    var v0 = goog.vec.Vec2.createFloat32FromValues(1, 2);
-    var v1 = goog.vec.Vec2.createFloat32FromValues(1, 2);
-    assertEquals(0, goog.vec.Vec2.distanceSquared(v0, v1));
-    goog.vec.Vec2.setFromValues(v0, 1, 2);
-    goog.vec.Vec2.setFromValues(v1, -1, -2);
-    assertEquals(20, goog.vec.Vec2.distanceSquared(v0, v1));
-  }
-
-  function testDistance() {
-    var v0 = goog.vec.Vec2.createFloat32FromValues(1, 2);
-    var v1 = goog.vec.Vec2.createFloat32FromValues(1, 2);
-    assertEquals(0, goog.vec.Vec2.distance(v0, v1));
-    goog.vec.Vec2.setFromValues(v0, 2, 3);
-    goog.vec.Vec2.setFromValues(v1, -2, 0);
-    assertEquals(5, goog.vec.Vec2.distance(v0, v1));
-  }
-
-  function testDirection() {
-    var v0 = goog.vec.Vec2.createFloat32FromValues(1, 2);
-    var v1 = goog.vec.Vec2.createFloat32FromValues(1, 2);
-    var dirVec = goog.vec.Vec2.createFloat32FromValues(4, 5);
-    goog.vec.Vec2.direction(v0, v1, dirVec);
-    assertElementsEquals([0, 0], dirVec);
-    goog.vec.Vec2.setFromValues(v0, 0, 0);
-    goog.vec.Vec2.setFromValues(v1, 1, 0);
-    goog.vec.Vec2.direction(v0, v1, dirVec);
-    assertElementsEquals([1, 0], dirVec);
-    goog.vec.Vec2.setFromValues(v0, 1, 1);
-    goog.vec.Vec2.setFromValues(v1, 0, 0);
-    goog.vec.Vec2.direction(v0, v1, dirVec);
-    assertElementsRoughlyEqual(
-        [-0.707106781, -0.707106781],
-        dirVec, goog.vec.EPSILON);
-  }
-
-  function testLerp() {
-    var v0 = goog.vec.Vec2.createFloat32FromValues(1, 2);
-    var v1 = goog.vec.Vec2.createFloat32FromValues(10, 20);
-    var v2 = goog.vec.Vec2.cloneFloat32(v0);
-
-    goog.vec.Vec2.lerp(v2, v1, 0, v2);
-    assertElementsEquals([1, 2], v2);
-    goog.vec.Vec2.lerp(v2, v1, 1, v2);
-    assertElementsEquals([10, 20], v2);
-    goog.vec.Vec2.lerp(v0, v1, .5, v2);
-    assertElementsEquals([5.5, 11], v2);
-  }
-
-  function testEquals() {
-    var v0 = goog.vec.Vec2.createFloat32FromValues(1, 2);
-    var v1 = goog.vec.Vec2.cloneFloat32(v0);
-    assertElementsEquals(v0, v1);
-
-    v1[0] = 4;
-    assertFalse(goog.vec.Vec2.equals(v0, v1));
-
-    v1 = goog.vec.Vec2.cloneFloat32(v0);
-    v1[1] = 4;
-    assertFalse(goog.vec.Vec2.equals(v0, v1));
-  }
-
-</script>
-</body>