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diff --git a/testing/web-platform/tests/svg/animations/svgtransform-animation-discrete.html b/testing/web-platform/tests/svg/animations/svgtransform-animation-discrete.html
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index 0000000000..17b78a2787
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+++ b/testing/web-platform/tests/svg/animations/svgtransform-animation-discrete.html
@@ -0,0 +1,74 @@
+<!doctype html>
+<html>
+<title>Test calcMode=discrete animation on SVGAnimateTransform.</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("width", "100");
+rect.setAttribute("height", "100");
+rect.setAttribute("x", "0");
+rect.setAttribute("y", "0");
+rect.setAttribute("fill", "green");
+rect.setAttribute("onclick", "executeTest()");
+
+var animate = createSVGElement("animateTransform");
+animate.setAttribute("id", "animation");
+animate.setAttribute("attributeName", "transform");
+animate.setAttribute("type", "translate");
+animate.setAttribute("from", "100,100");
+animate.setAttribute("to", "0,0");
+animate.setAttribute("type", "translate");
+animate.setAttribute("calcMode", "discrete");
+animate.setAttribute("begin", "0s");
+animate.setAttribute("dur", "4s");
+rect.appendChild(animate);
+rootSVGElement.appendChild(rect);
+
+// Setup animation test
+function sample1() {
+    // Check initial/end conditions
+    assert_equals(rect.transform.animVal.numberOfItems, 1);
+    assert_equals(rect.transform.animVal.getItem(0).type, SVGTransform.SVG_TRANSFORM_TRANSLATE);
+    assert_approx_equals(rect.transform.animVal.getItem(0).matrix.e, 100, epsilon);
+    assert_approx_equals(rect.transform.animVal.getItem(0).matrix.f, 100, epsilon);
+    assert_equals(rect.transform.baseVal.numberOfItems, 0);
+}
+
+function sample2() {
+    assert_equals(rect.transform.animVal.numberOfItems, 1);
+    assert_equals(rect.transform.animVal.getItem(0).type, SVGTransform.SVG_TRANSFORM_TRANSLATE);
+    assert_approx_equals(rect.transform.animVal.getItem(0).matrix.e, 0, epsilon);
+    assert_approx_equals(rect.transform.animVal.getItem(0).matrix.f, 0, epsilon);
+    assert_equals(rect.transform.baseVal.numberOfItems, 0);
+}
+
+function sample3() {
+    assert_equals(rect.transform.animVal.numberOfItems, 0);
+    assert_equals(rect.transform.baseVal.numberOfItems, 0);
+}
+
+smil_async_test((t) => {
+    const expectedValues = [
+        // [animationId, time, sampleCallback]
+        ["animation", 0.001, sample1],
+        ["animation", 1.999, sample1],
+        ["animation", 2.001, sample2],
+        ["animation", 3.999, sample2],
+        ["animation", 4.001, sample3]
+    ];
+
+    runAnimationTest(t, expectedValues);
+});
+
+</script>