diff --git a/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1408/actual.js b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1408/actual.js
new file mode 100644
index 0000000000..a26cd32237
--- /dev/null
+++ b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1408/actual.js
@@ -0,0 +1,4 @@
+class A {
+  constructor() { this.value = 12345; }
+}
+export default new A();
diff --git a/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1408/exec.js b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1408/exec.js
new file mode 100644
index 0000000000..7a05c7e901
--- /dev/null
+++ b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1408/exec.js
@@ -0,0 +1,3 @@
+import aInstance from './imported';
+
+assert.equal(aInstance.value, 12345);
diff --git a/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1408/expected.js b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1408/expected.js
new file mode 100644
index 0000000000..a7f17a13a1
--- /dev/null
+++ b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1408/expected.js
@@ -0,0 +1,14 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+
+var A = function A() {
+  babelHelpers.classCallCheck(this, A);
+  this.value = 12345;
+};
+
+exports["default"] = new A();
+module.exports = exports["default"];
+
diff --git a/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1408/imported.js b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1408/imported.js
new file mode 100644
index 0000000000..a26cd32237
--- /dev/null
+++ b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1408/imported.js
@@ -0,0 +1,4 @@
+class A {
+  constructor() { this.value = 12345; }
+}
+export default new A();
diff --git a/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1409/actual.js b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1409/actual.js
new file mode 100644
index 0000000000..73517de562
--- /dev/null
+++ b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1409/actual.js
@@ -0,0 +1,5 @@
+class A {
+  f() { return 1235; }
+}
+
+let a = new A();
diff --git a/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1409/exec.js b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1409/exec.js
new file mode 100644
index 0000000000..e056f09112
--- /dev/null
+++ b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1409/exec.js
@@ -0,0 +1,5 @@
+class A {
+  k() { return 12345; }
+}
+
+assert.equal((new A()).k(), 12345);
diff --git a/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1409/expected.js b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1409/expected.js
new file mode 100644
index 0000000000..516f7cfa09
--- /dev/null
+++ b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1409/expected.js
@@ -0,0 +1,17 @@
+"use strict";
+
+var A = (function () {
+  function A() {
+    babelHelpers.classCallCheck(this, A);
+  }
+
+  babelHelpers.createClass(A, [{
+    key: "f",
+    value: function f() {
+      return 1235;
+    }
+  }]);
+  return A;
+})();
+
+var a = new A();
diff --git a/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1520/actual.js b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1520/actual.js
new file mode 100644
index 0000000000..e822acb53a
--- /dev/null
+++ b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1520/actual.js
@@ -0,0 +1 @@
+import x from 'y';
diff --git a/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1520/expected.js b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1520/expected.js
new file mode 100644
index 0000000000..4084f8b09d
--- /dev/null
+++ b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1520/expected.js
@@ -0,0 +1,6 @@
+'use strict';
+
+var _y = require('y');
+
+var _y2 = babelHelpers.interopRequireDefault(_y);
+
diff --git a/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1522/actual.js b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1522/actual.js
new file mode 100644
index 0000000000..7d956cc75f
--- /dev/null
+++ b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1522/actual.js
@@ -0,0 +1,3 @@
+import x from 'y';
+
+x.foo = function (err) {};
diff --git a/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1522/exec.js b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1522/exec.js
new file mode 100644
index 0000000000..95af2bcca8
--- /dev/null
+++ b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1522/exec.js
@@ -0,0 +1,5 @@
+import x from 'y';
+
+x.z = function (a) { return 1 + a; };
+
+assert(x.z(x.value), 43);
diff --git a/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1522/expected.js b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1522/expected.js
new file mode 100644
index 0000000000..b18afb0a1c
--- /dev/null
+++ b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1522/expected.js
@@ -0,0 +1,8 @@
+'use strict';
+
+var _y = require('y');
+
+var _y2 = babelHelpers.interopRequireDefault(_y);
+
+_y2['default'].foo = function (err) {};
+
diff --git a/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1522/y.js b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1522/y.js
new file mode 100644
index 0000000000..4f845d4abd
--- /dev/null
+++ b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1522/y.js
@@ -0,0 +1,2 @@
+let y = { value: 42 };
+export default y;
diff --git a/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1523/actual.js b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1523/actual.js
new file mode 100644
index 0000000000..ea435467bc
--- /dev/null
+++ b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1523/actual.js
@@ -0,0 +1,5 @@
+function f(a) {
+  return !a;
+}
+
+export { f };
diff --git a/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1523/expected.js b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1523/expected.js
new file mode 100644
index 0000000000..d9867f1116
--- /dev/null
+++ b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1523/expected.js
@@ -0,0 +1,11 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+function f(a) {
+  return !a;
+}
+
+exports.f = f;
+
diff --git a/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1524/actual.js b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1524/actual.js
new file mode 100644
index 0000000000..4b383f4a88
--- /dev/null
+++ b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1524/actual.js
@@ -0,0 +1,13 @@
+function* x() {
+  for (let a of []) {
+    for (let b of a) {
+      yield 1;
+    }
+  }
+}
+
+function y() {
+  return [...x()];
+}
+
+export { y };
diff --git a/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1524/expected.js b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1524/expected.js
new file mode 100644
index 0000000000..9f22ed1fa1
--- /dev/null
+++ b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1524/expected.js
@@ -0,0 +1,42 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+function* x() {
+  var _arr = [];
+
+  for (var _i = 0; _i < _arr.length; _i++) {
+    var a = _arr[_i];var _iteratorNormalCompletion = true;
+    var _didIteratorError = false;
+    var _iteratorError = undefined;
+
+    try {
+      for (var _iterator = a[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
+        var b = _step.value;
+
+        yield 1;
+      }
+    } catch (err) {
+      _didIteratorError = true;
+      _iteratorError = err;
+    } finally {
+      try {
+        if (!_iteratorNormalCompletion && _iterator["return"]) {
+          _iterator["return"]();
+        }
+      } finally {
+        if (_didIteratorError) {
+          throw _iteratorError;
+        }
+      }
+    }
+  }
+}
+
+function y() {
+  return [].concat(babelHelpers.toConsumableArray(x()));
+}
+
+exports.y = y;
+
diff --git a/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1546/actual.js b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1546/actual.js
new file mode 100644
index 0000000000..c9b8f7c317
--- /dev/null
+++ b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1546/actual.js
@@ -0,0 +1,7 @@
+class X {
+  Y() {
+    return new X();
+  }
+}
+
+export { X };
diff --git a/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1546/expected.js b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1546/expected.js
new file mode 100644
index 0000000000..64a735f5e9
--- /dev/null
+++ b/test/core/fixtures/transformation/minification.dead-code-elimination/issue-1546/expected.js
@@ -0,0 +1,22 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+
+var X = (function () {
+  function X() {
+    babelHelpers.classCallCheck(this, X);
+  }
+
+  babelHelpers.createClass(X, [{
+    key: "Y",
+    value: function Y() {
+      return new X();
+    }
+  }]);
+  return X;
+})();
+
+exports.X = X;
+
diff --git a/test/core/fixtures/transformation/minification.dead-code-elimination/options.json b/test/core/fixtures/transformation/minification.dead-code-elimination/options.json
new file mode 100644
index 0000000000..86a24d9c82
--- /dev/null
+++ b/test/core/fixtures/transformation/minification.dead-code-elimination/options.json
@@ -0,0 +1,6 @@
+{
+  "externalHelpers": true,
+  "noCheckAst": true,
+  "blacklist": ["regenerator"],
+  "optional": ["minification.deadCodeElimination"]
+}