diff --git a/test/src/unit-constructor1.cpp b/test/src/unit-constructor1.cpp
index 2caf2653..6f6e0014 100644
--- a/test/src/unit-constructor1.cpp
+++ b/test/src/unit-constructor1.cpp
@@ -115,6 +115,14 @@ TEST_CASE("constructors")
             CHECK(j.type() == t);
             CHECK(j == 0.0);
         }
+
+        SECTION("binary")
+        {
+            auto t = json::value_t::binary;
+            json j(t);
+            CHECK(j.type() == t);
+            CHECK(j == json::binary_array({}));
+        }
     }
 
     SECTION("create a null object (implicitly)")
diff --git a/test/src/unit-constructor2.cpp b/test/src/unit-constructor2.cpp
index 69429b0b..8bbb5197 100644
--- a/test/src/unit-constructor2.cpp
+++ b/test/src/unit-constructor2.cpp
@@ -91,6 +91,13 @@ TEST_CASE("other constructors and destructor")
             json k(j);
             CHECK(j == k);
         }
+
+        SECTION("binary")
+        {
+            json j = json::binary_array({1, 2, 3});
+            json k(j);
+            CHECK(j == k);
+        }
     }
 
     SECTION("move constructor")
@@ -167,6 +174,14 @@ TEST_CASE("other constructors and destructor")
             k = j;
             CHECK(j == k);
         }
+
+        SECTION("binary")
+        {
+            json j = json::binary_array({1, 2, 3});
+            json k;
+            k = j;
+            CHECK(j == k);
+        }
     }
 
     SECTION("destructor")
diff --git a/test/src/unit-element_access1.cpp b/test/src/unit-element_access1.cpp
index ebec9328..069beb50 100644
--- a/test/src/unit-element_access1.cpp
+++ b/test/src/unit-element_access1.cpp
@@ -694,6 +694,22 @@ TEST_CASE("element access 1")
                     CHECK(it == j.end());
                 }
             }
+
+            SECTION("binary")
+            {
+                {
+                    json j = json::binary_array({1, 2, 3});
+                    json::iterator it = j.erase(j.begin());
+                    CHECK(j.type() == json::value_t::null);
+                    CHECK(it == j.end());
+                }
+                {
+                    json j = json::binary_array({1, 2, 3});
+                    json::const_iterator it = j.erase(j.cbegin());
+                    CHECK(j.type() == json::value_t::null);
+                    CHECK(it == j.end());
+                }
+            }
         }
 
         SECTION("erase with one invalid iterator")