diff --git a/test/spec/svg/lines.js b/test/spec/svg/lines.js
new file mode 100644
index 000000000..61c3229a9
--- /dev/null
+++ b/test/spec/svg/lines.js
@@ -0,0 +1,54 @@
+describe("iD.svg.Lines", function () {
+    var surface,
+        projection = Object,
+        filter = d3.functor(true);
+
+    beforeEach(function () {
+        surface = d3.select(document.createElementNS('http://www.w3.org/2000/svg', 'svg'))
+            .call(iD.svg.Surface());
+    });
+
+    it("adds way and area classes", function () {
+        var line = iD.Way(),
+            graph = iD.Graph([line]);
+
+        surface.call(iD.svg.Lines(projection), graph, [line], filter);
+
+        expect(surface.select('path')).to.be.classed('way');
+        expect(surface.select('path')).to.be.classed('line');
+    });
+
+    it("adds tag classes", function () {
+        var line = iD.Way({tags: {highway: 'residential'}}),
+            graph = iD.Graph([line]);
+
+        surface.call(iD.svg.Lines(projection), graph, [line], filter);
+
+        expect(surface.select('.line')).to.be.classed('tag-highway');
+        expect(surface.select('.line')).to.be.classed('tag-highway-residential');
+    });
+
+    it("adds member classes", function () {
+        var line = iD.Way(),
+            relation = iD.Relation({members: [{id: line.id}], tags: {type: 'route'}}),
+            graph = iD.Graph([line, relation]);
+
+        surface.call(iD.svg.Lines(projection), graph, [line], filter);
+
+        expect(surface.select('.line')).to.be.classed('member');
+        expect(surface.select('.line')).to.be.classed('member-type-route');
+    });
+
+    it("preserves non-line paths", function () {
+        var line = iD.Way(),
+            graph = iD.Graph([line]);
+
+        surface.select('.layer-fill')
+            .append('path')
+            .attr('class', 'other');
+
+        surface.call(iD.svg.Lines(projection), graph, [line], filter);
+
+        expect(surface.selectAll('.other')[0].length).to.equal(1);
+    });
+});