diff --git a/std/array.d b/std/array.d
index c1c2e3b2a..de53aa848 100644
--- a/std/array.d
+++ b/std/array.d
@@ -169,6 +169,27 @@ unittest
     }
 }
 
+// Bugzilla 10220
+unittest
+{
+    import std.algorithm : equal;
+    import std.range : repeat;
+
+    static struct S
+    {
+        int val;
+
+        @disable this();
+        this(int v) { val = v; }
+    }
+    assertCTFEable!(
+    {
+        auto r = S(1).repeat(2).array();
+        assert(equal(r, [S(1), S(1)]));
+    });
+}
+
+
 /**
 Returns a newly allocated associative array out of elements of the input range,
 which must be a range of tuples (Key, Value).
@@ -187,8 +208,8 @@ assert(b == ["foo":"bar", "baz":"quux"]);
  */
 
 auto assocArray(Range)(Range r)
-    if (isInputRange!Range && isTuple!(ElementType!Range)
-     && ElementType!Range.length == 2)
+    if (isInputRange!Range && isTuple!(ElementType!Range) &&
+        ElementType!Range.length == 2)
 {
     alias ElementType!Range.Types[0] KeyType;
     alias ElementType!Range.Types[1] ValueType;
@@ -202,7 +223,7 @@ unittest
 {
     static assert(!__traits(compiles, [ tuple("foo", "bar", "baz") ].assocArray()));
     static assert(!__traits(compiles, [ tuple("foo") ].assocArray()));
-    static assert(__traits(compiles, [ tuple("foo", "bar") ].assocArray()));
+    static assert( __traits(compiles, [ tuple("foo", "bar") ].assocArray()));
 
     auto aa1 = [ tuple("foo", "bar"), tuple("baz", "quux") ].assocArray();
     assert(is(typeof(aa1) == string[string]));
@@ -224,7 +245,8 @@ private template blockAttribute(T)
         enum blockAttribute = GC.BlkAttr.NO_SCAN;
     }
 }
-unittest {
+unittest
+{
     static assert(!(blockAttribute!void & GC.BlkAttr.NO_SCAN));
 }
 
@@ -241,7 +263,8 @@ private template nDimensions(T)
     }
 }
 
-unittest {
+unittest
+{
     static assert(nDimensions!(uint[]) == 1);
     static assert(nDimensions!(float[][]) == 2);
 }
@@ -319,7 +342,12 @@ if(allSatisfy!(isIntegral, I))
     alias typeof(T.init[0]) E;
 
     auto ptr = (__ctfe) ?
-        (new E[](sizes[0])).ptr :
+        {
+            E[] arr;
+            foreach (i; 0 .. sizes[0])
+                arr ~= E.init;
+            return arr.ptr;
+        }() :
         cast(E*) GC.malloc(sizes[0] * E.sizeof, blockAttribute!(E));
     auto ret = ptr[0..sizes[0]];
 
@@ -1160,14 +1188,13 @@ unittest
 
 unittest
 {
-    static int[] testCTFE()
+    assertCTFEable!(
     {
         int[] a = [1, 2];
         a.insertInPlace(2, 3);
         a.insertInPlace(0, -1, 0);
-        return a;
-    }
-    static assert(testCTFE() == [-1, 0, 1, 2, 3]);
+        return a == [-1, 0, 1, 2, 3];
+    });
 }
 
 unittest // bugzilla 6874
@@ -2586,23 +2613,19 @@ unittest
         }
     }
 
+    static struct S10122
     {
-        static struct S10122
-        {
-            int val;
+        int val;
 
-            @disable this();
-            this(int v) { val = v; }
-        }
+        @disable this();
+        this(int v) { val = v; }
+    }
+    assertCTFEable!(
+    {
         auto w = appender!(S10122[])();
         w.put(S10122(1));
-
-        static assert({
-            auto w = appender!(S10122[])();
-            w.put(S10122(1));
-            return w.data.length == 1 && w.data[0].val == 1;
-        }());
-    }
+        assert(w.data.length == 1 && w.data[0].val == 1);
+    });
 }
 
 /++
diff --git a/std/conv.d b/std/conv.d
index 2d50ce1f9..fda09a42f 100644
--- a/std/conv.d
+++ b/std/conv.d
@@ -958,10 +958,12 @@ unittest
     assert(wtext(int.min) == "-2147483648"w);
     assert(to!string(0L) == "0");
 
-    //Test CTFE-ability.
-    static assert(to!string(1uL << 62) == "4611686018427387904");
-    static assert(to!string(0x100000000) == "4294967296");
-    static assert(to!string(-138L) == "-138");
+    assertCTFEable!(
+    {
+        assert(to!string(1uL << 62) == "4611686018427387904");
+        assert(to!string(0x100000000) == "4294967296");
+        assert(to!string(-138L) == "-138");
+    });
 }
 
 unittest
@@ -1995,10 +1997,9 @@ unittest
 
 unittest
 {
-    //Some CTFE-ability checks.
-    static assert((){string s = "1234abc"; return parse!int(s) == 1234 && s == "abc";}());
-    static assert((){string s = "-1234abc"; return parse!int(s) == -1234 && s == "abc";}());
-    static assert((){string s = "1234abc"; return parse!uint(s) == 1234 && s == "abc";}());
+    assertCTFEable!({ string s =  "1234abc"; assert(parse! int(s) ==  1234 && s == "abc"); });
+    assertCTFEable!({ string s = "-1234abc"; assert(parse! int(s) == -1234 && s == "abc"); });
+    assertCTFEable!({ string s =  "1234abc"; assert(parse!uint(s) ==  1234 && s == "abc"); });
 }
 
 /// ditto
diff --git a/std/exception.d b/std/exception.d
index 7cdf88dc2..6e96355c9 100644
--- a/std/exception.d
+++ b/std/exception.d
@@ -1197,3 +1197,10 @@ unittest
     static assert(!__traits(compiles, 1.ifThrown(e=>new Object())));
     static assert(!__traits(compiles, (new Object()).ifThrown(e=>1)));
 }
+
+version(unittest) package
+@property void assertCTFEable(alias dg)()
+{
+    static assert({ dg(); return true; }());
+    dg();
+}
diff --git a/std/format.d b/std/format.d
index 977eccf46..bb7ddc203 100644
--- a/std/format.d
+++ b/std/format.d
@@ -3627,13 +3627,6 @@ void formatReflectTest(T)(ref T val, string fmt, string formatted, string fn = _
             input, fn, ln);
 }
 
-version(unittest)
-@property void checkCTFEable(alias dg)()
-{
-    static assert({ dg(); return true; }());
-    dg();
-}
-
 unittest
 {
     void booleanTest()
@@ -3712,7 +3705,9 @@ unittest
         formatReflectTest(aa, "{%([%s=%(%c%)]%|; %)}",  `{[1=hello]; [2=world]}`);
     }
 
-    checkCTFEable!({
+    import std.exception;
+    assertCTFEable!(
+    {
         booleanTest();
         integerTest();
         if (!__ctfe) floatingTest();    // snprintf
diff --git a/std/numeric.d b/std/numeric.d
index 5aca3f4b3..63bef31d1 100644
--- a/std/numeric.d
+++ b/std/numeric.d
@@ -1318,11 +1318,7 @@ unittest
         [1.0, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18];
     static const y =
         [2.0, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19];
-    assert(dotProduct(x, y) == 2280);
-
-    // Test in CTFE
-    enum ctfeDot = dotProduct(x, y);
-    static assert(ctfeDot == 2280);
+    assertCTFEable!({ assert(dotProduct(x, y) == 2280); });
 }
 
 /**
diff --git a/std/path.d b/std/path.d
index a9bd74f32..113dffd8a 100644
--- a/std/path.d
+++ b/std/path.d
@@ -1619,8 +1619,11 @@ unittest
         assert (equal2(pathSplitter(`\\foo\bar\baz`), [`\\foo\bar`, "baz"]));
     }
 
-    // CTFE
-    static assert (equal(pathSplitter("/foo/bar".dup), ["/", "foo", "bar"]));
+    import std.exception;
+    assertCTFEable!(
+    {
+        assert (equal(pathSplitter("/foo/bar".dup), ["/", "foo", "bar"]));
+    });
 }
 
 
@@ -1943,8 +1946,10 @@ unittest
         assert (relativePath("/foo/bar/baz", "/foo/bar") == "baz");
         assertThrown(relativePath("/foo", "bar"));
 
-        // CTFE
-        static assert (relativePath("/foo/bar", "/foo/baz") == "../bar");
+        assertCTFEable!(
+        {
+            assert (relativePath("/foo/bar", "/foo/baz") == "../bar");
+        });
     }
     else version (Windows)
     {
@@ -1958,8 +1963,10 @@ unittest
         assert (relativePath(`\\foo\bar`, `c:\foo`) == `\\foo\bar`);
         assertThrown(relativePath(`c:\foo`, "bar"));
 
-        // CTFE
-        static assert (relativePath(`c:\foo\bar`, `c:\foo\baz`) == `..\bar`);
+        assertCTFEable!(
+        {
+            assert (relativePath(`c:\foo\bar`, `c:\foo\baz`) == `..\bar`);
+        });
     }
     else static assert (0);
 }
diff --git a/std/string.d b/std/string.d
index c1c7b1b95..e2cc0772c 100644
--- a/std/string.d
+++ b/std/string.d
@@ -2365,9 +2365,11 @@ unittest
     assertThrown!FormatException(format("foo %s"));
     assertThrown!FormatException(format("foo %s", 123, 456));
 
-    //Test CTFE-ability of format.
-    static assert(format("hel%slo%s%s%s", "world", -138, 'c', true) ==
-                  "helworldlo-138ctrue", "[" ~ s ~ "]");
+    assertCTFEable!(
+    {
+        assert(format("hel%slo%s%s%s", "world", -138, 'c', true) ==
+                      "helworldlo-138ctrue");
+    });
 }
 
 
diff --git a/std/typecons.d b/std/typecons.d
index 7b79d5f32..470a6df67 100644
--- a/std/typecons.d
+++ b/std/typecons.d
@@ -829,12 +829,12 @@ unittest
 }
 unittest
 {
-    static assert({
+    // Bugzilla 10218
+    assertCTFEable!(
+    {
         auto t = tuple(1);
-        t = tuple(2);
-
-        return true;
-    }());
+        t = tuple(2);   // assignment
+    });
 }
 
 /**