diff --git a/src/Makefile.am b/src/Makefile.am
index bdd7568..bd88fa0 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -350,6 +350,7 @@
 	test-number \
 	test-ot-tag \
 	test-priority-queue \
+	test-set \
 	test-unicode-ranges \
 	test-vector \
 	test-bimap \
@@ -392,10 +393,18 @@
 test_ot_tag_CPPFLAGS = $(COMPILED_TESTS_CPPFLAGS)
 test_ot_tag_LDADD = $(COMPILED_TESTS_LDADD)
 
+test_set_SOURCES = test-set.cc hb-static.cc
+test_set_CPPFLAGS = $(COMPILED_TESTS_CPPFLAGS)
+test_set_LDADD = $(COMPILED_TESTS_LDADD)
+
 test_unicode_ranges_SOURCES = test-unicode-ranges.cc
 test_unicode_ranges_CPPFLAGS = $(COMPILED_TESTS_CPPFLAGS)
 test_unicode_ranges_LDADD = $(COMPILED_TESTS_LDADD)
 
+test_vector_SOURCES = test-vector.cc hb-static.cc
+test_vector_CPPFLAGS = $(COMPILED_TESTS_CPPFLAGS)
+test_vector_LDADD = $(COMPILED_TESTS_LDADD)
+
 test_bimap_SOURCES = test-bimap.cc hb-static.cc
 test_bimap_CPPFLAGS = $(COMPILED_TESTS_CPPFLAGS)
 test_bimap_LDADD = $(COMPILED_TESTS_LDADD)
diff --git a/src/hb-set.hh b/src/hb-set.hh
index 437e234..17eb8ad 100644
--- a/src/hb-set.hh
+++ b/src/hb-set.hh
@@ -31,6 +31,8 @@
 #include "hb.hh"
 #include "hb-bit-set-invertible.hh"
 
+#include <initializer_list>
+
 
 template <typename impl_t>
 struct hb_sparseset_t
@@ -42,9 +44,22 @@
   ~hb_sparseset_t () { fini (); }
 
   hb_sparseset_t (const hb_sparseset_t& other) : hb_sparseset_t () { set (other); }
-  void operator= (const hb_sparseset_t& other) { set (other); }
-  // TODO Add move construtor/assign
-  // TODO Add constructor for Iterator
+  hb_sparseset_t (hb_sparseset_t&& other) : hb_sparseset_t () { s = hb_move (other.s); }
+  hb_sparseset_t& operator= (const hb_sparseset_t& other) { set (other); return *this; }
+  hb_sparseset_t& operator= (hb_sparseset_t&& other) { hb_swap (*this, other); return *this; }
+  friend void swap (hb_sparseset_t& a, hb_sparseset_t& b) { hb_swap (a.s, b.s); }
+
+  hb_sparseset_t (std::initializer_list<hb_codepoint_t> l) : hb_sparseset_t ()
+  {
+    for (auto&& i : l)
+      add (i);
+  }
+  template <typename Iterable,
+	    hb_requires (hb_is_iterable (Iterable))>
+  hb_sparseset_t (const Iterable &o) : hb_sparseset_t ()
+  {
+    hb_copy (o, *this);
+  }
 
   void init_shallow () { s.init (); }
   void init ()
@@ -140,7 +155,17 @@
   operator iter_t () const { return iter (); }
 };
 
-struct hb_set_t : hb_sparseset_t<hb_bit_set_invertible_t> {};
+struct hb_set_t : hb_sparseset_t<hb_bit_set_invertible_t>
+{
+  hb_set_t () : hb_sparseset_t<hb_bit_set_invertible_t> () {}
+  hb_set_t (std::initializer_list<hb_codepoint_t> l) : hb_sparseset_t<hb_bit_set_invertible_t> (l) {}
+  hb_set_t (hb_set_t& o) : hb_sparseset_t<hb_bit_set_invertible_t> (o) {}
+  template <typename Iterable,
+	    hb_requires (hb_is_iterable (Iterable))>
+  hb_set_t (const Iterable &o) : hb_sparseset_t<hb_bit_set_invertible_t> (o) {}
+  hb_set_t& operator= (const hb_set_t& other) { hb_sparseset_t<hb_bit_set_invertible_t>::operator= (other); return *this; }
+  hb_set_t& operator= (hb_set_t&& other) { hb_sparseset_t<hb_bit_set_invertible_t>::operator= (hb_move (other)); return *this; }
+};
 
 static_assert (hb_set_t::INVALID == HB_SET_VALUE_INVALID, "");
 
diff --git a/src/meson.build b/src/meson.build
index 8209fb5..ca40176 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -491,6 +491,7 @@
     'test-meta': ['test-meta.cc', 'hb-static.cc'],
     'test-number': ['test-number.cc', 'hb-number.cc'],
     'test-ot-tag': ['hb-ot-tag.cc'],
+    'test-set': ['test-set.cc', 'hb-static.cc'],
     'test-unicode-ranges': ['test-unicode-ranges.cc'],
     'test-vector': ['test-vector.cc', 'hb-static.cc'],
     'test-bimap': ['test-bimap.cc', 'hb-static.cc'],
diff --git a/src/test-set.cc b/src/test-set.cc
new file mode 100644
index 0000000..531df17
--- /dev/null
+++ b/src/test-set.cc
@@ -0,0 +1,96 @@
+/*
+ * Copyright © 2021  Behdad Esfahbod
+ *
+ *  This is part of HarfBuzz, a text shaping library.
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and its documentation for any purpose, provided that the
+ * above copyright notice and the following two paragraphs appear in
+ * all copies of this software.
+ *
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
+ * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
+ * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ */
+
+#include "hb.hh"
+#include "hb-set.hh"
+
+
+int
+main (int argc, char **argv)
+{
+
+  /* Test copy constructor. */
+  {
+    hb_set_t v1 {1, 2};
+    hb_set_t v2 {v1};
+    assert (v1.get_population () == 2);
+    assert (v2.get_population () == 2);
+  }
+
+  /* Test copy assignment. */
+  {
+    hb_set_t v1 {1, 2};
+    hb_set_t v2 = v1;
+    assert (v1.get_population () == 2);
+    assert (v2.get_population () == 2);
+  }
+
+  /* Test move constructor. */
+  {
+    hb_set_t v {hb_set_t {1, 2}};
+    assert (v.get_population () == 2);
+  }
+
+  /* Test move assignment. */
+  {
+    hb_set_t v;
+    v = hb_set_t {1, 2};
+    assert (v.get_population () == 2);
+  }
+  /* Test initializing set from iterable. */
+  {
+    hb_set_t s;
+
+    s.add (18);
+    s.add (12);
+
+    hb_set_t v (s);
+
+    assert (v.get_population () == 2);
+  }
+
+  /* Test initializing set from iterator. */
+  {
+    hb_set_t s;
+
+    s.add (18);
+    s.add (12);
+
+    hb_set_t v (hb_iter (s));
+
+    assert (v.get_population () == 2);
+  }
+
+  /* Test initializing set from initializer list and swapping. */
+  {
+    hb_set_t v1 {1, 2, 3};
+    hb_set_t v2 {4, 5};
+    hb_swap (v1, v2);
+    assert (v1.get_population () == 2);
+    assert (v2.get_population () == 3);
+  }
+
+  return 0;
+}