1 files changed, 56 insertions, 0 deletions
diff --git a/testing/web-platform/tests/svg/animations/svglength-animation-invalid-value-2.html b/testing/web-platform/tests/svg/animations/svglength-animation-invalid-value-2.html
new file mode 100644
index 0000000000..f9a6bcc40d
--- /dev/null
+++ b/testing/web-platform/tests/svg/animations/svglength-animation-invalid-value-2.html
@@ -0,0 +1,56 @@
+<!doctype html>
+<html>
+<meta charset="utf-8">
+<title>Test SVGLength animation with invalid value: No spaces before value.</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/SVGAnimationTestCase-testharness.js"></script>
+
+<svg>
+</svg>
+
+<script>
+var rootSVGElement = document.querySelector("svg");
+var epsilon = 1.0;
+
+// Setup test document
+var rect = createSVGElement("rect");
+rect.setAttribute("id", "rect");
+rect.setAttribute("x", "0");
+rect.setAttribute("width", "100");
+rect.setAttribute("height", "100");
+rect.setAttribute("fill", "green");
+rect.setAttribute("onclick", "executeTest()");
+
+var animate = createSVGElement("animate");
+animate.setAttribute("id", "animation");
+animate.setAttribute("attributeName", "width");
+animate.setAttribute("begin", "0s");
+animate.setAttribute("dur", "4s");
+animate.setAttribute("from", "   100pxERROR");
+animate.setAttribute("to", "   200pxERROR");
+rect.appendChild(animate);
+rootSVGElement.appendChild(rect);
+
+// Setup animation test
+function sample1() {
+    assert_approx_equals(rect.width.animVal.value, 100, epsilon);
+    assert_equals(rect.width.baseVal.value, 100);
+}
+
+// Per https://www.w3.org/TR/2001/REC-smil-animation-20010904/#ToAttribute
+// If any values (i.e., the argument-values for from, to, by or values attributes) are not legal,
+// the animation will have no effect
+smil_async_test((t) => {
+    const expectedValues = [
+        // [animationId, time, sampleCallback]
+        ["animation", 0.0,   sample1],
+        ["animation", 2.0,   sample1],
+        ["animation", 3.999, sample1],
+        ["animation", 4.001, sample1]
+    ];
+
+    runAnimationTest(t, expectedValues);
+});
+
+</script>