Retry: Rename all test files from JS -> ES6

test/javascripts/components/text-overflow-test.js

@@ -0,0 +1,32 @@
+import componentTest from "helpers/component-test";
+
+moduleForComponent("text-overflow", { integration: true });
+
+componentTest("default", {
+  template: `
+    <style>
+      .overflow {
+        max-height: 40px;
+        overflow: hidden;
+        width: 500px;
+      }
+    </style>
+
+    <div>{{text-overflow class='overflow' text=text}}</div>`,
+
+  beforeEach() {
+    this.set(
+      "text",
+      "Lorem ipsum dolor sit amet, consectetur adipiscing elit.\nFusce convallis faucibus tortor quis vestibulum.<br>\nPhasellus pharetra dolor eget imperdiet tempor.<br>\nQuisque hendrerit magna id consectetur rutrum.<br>\nNulla vel tortor leo.<br>\nFusce ullamcorper lacus quis sodales ornare.<br>"
+    );
+  },
+
+  test(assert) {
+    const text = find(".overflow")
+      .text()
+      .trim();
+
+    assert.ok(text.startsWith("Lorem ipsum dolor sit amet"));
+    assert.ok(text.endsWith("..."));
+  }
+});