diff --git a/src/test/data/script_invalid.json b/src/test/data/script_invalid.json
index c05d3ba5b..f06c3beea 100644
--- a/src/test/data/script_invalid.json
+++ b/src/test/data/script_invalid.json
@@ -10,7 +10,7 @@
 ["2147483648 0 ADD", "NOP", "arithmetic operands must be in range [-2^31...2^31] "],
 ["-2147483648 0 ADD", "NOP", "arithmetic operands must be in range [-2^31...2^31] "],
 ["2147483647 DUP ADD", "4294967294 NUMEQUAL", "NUMEQUAL must be in numeric range"],
-["0xaabbccddeeff NOT", "0 EQUAL", "NOT is an arithmetic operand"],
+["'abcdef' NOT", "0 EQUAL", "NOT is an arithmetic operand"],
 
 ["2 DUP MUL", "4 EQUAL", "disabled"],
 ["2 DUP DIV", "1 EQUAL", "disabled"],
@@ -20,6 +20,10 @@
 ["2 2 LSHIFT", "8 EQUAL", "disabled"],
 ["2 1 RSHIFT", "1 EQUAL", "disabled"],
 
+["1","NOP1 NOP2 NOP3 NOP4 NOP5 NOP6 NOP7 NOP8 NOP9 NOP10 2 EQUAL"],
+["'NOP_1_to_10' NOP1 NOP2 NOP3 NOP4 NOP5 NOP6 NOP7 NOP8 NOP9 NOP10","'NOP_1_to_11' EQUAL"],
+
+["0x50","1", "opcode 0x50 is reserved"],
 
 ["NOP1","NOP10"]
 ]
diff --git a/src/test/data/script_valid.json b/src/test/data/script_valid.json
index e7ad6d9cc..f59d8b728 100644
--- a/src/test/data/script_valid.json
+++ b/src/test/data/script_valid.json
@@ -1,4 +1,12 @@
 [
+["0x4c0107","7 EQUAL", "0x4c is OP_PUSHDATA1"],
+["0x4d010008","8 EQUAL", "0x4d is OP_PUSHDATA2"],
+["0x4e0100000009","9 EQUAL", "0x4e is OP_PUSHDATA4"],
+
+["0x4c00","0 EQUAL"],
+["0x4d0000","0 EQUAL"],
+["0x4e00000000","0 EQUAL"],
+
 ["2 -2 ADD", "0 EQUAL"],
 ["2147483647 -2147483647 ADD", "0 EQUAL"],
 ["-1 -1 ADD", "-2 EQUAL"],
@@ -73,6 +81,8 @@
 ["2147483647 DUP ADD", "4294967294 EQUAL", ">32 bit EQUAL is valid"],
 ["2147483647 NEGATE DUP ADD", "-4294967294 EQUAL"],
 
+["1","NOP1 NOP2 NOP3 NOP4 NOP5 NOP6 NOP7 NOP8 NOP9 NOP10 1 EQUAL"],
+["'NOP_1_to_10' NOP1 NOP2 NOP3 NOP4 NOP5 NOP6 NOP7 NOP8 NOP9 NOP10","'NOP_1_to_10' EQUAL"],
 
 ["NOP","1"]
 ]
diff --git a/src/test/script_tests.cpp b/src/test/script_tests.cpp
index 745df4bd7..a5fdaaa4c 100644
--- a/src/test/script_tests.cpp
+++ b/src/test/script_tests.cpp
@@ -59,13 +59,15 @@ ParseScript(string s)
         }
         else if (starts_with(w, "0x") && IsHex(string(w.begin()+2, w.end())))
         {
-            // Hex data:
-            result << ParseHex(string(w.begin()+2, w.end()));
+            // Raw hex data, inserted NOT pushed onto stack:
+            std::vector<unsigned char> raw = ParseHex(string(w.begin()+2, w.end()));
+            result.insert(result.end(), raw.begin(), raw.end());
         }
-        else if (s.size() >= 2 && starts_with(w, "'") && ends_with(w, "'"))
+        else if (w.size() >= 2 && starts_with(w, "'") && ends_with(w, "'"))
         {
-            // Single-quoted string, pushed as data:
-            std::vector<unsigned char> value(s.begin()+1, s.end()-1);
+            // Single-quoted string, pushed as data. NOTE: this is poor-man's
+            // parsing, spaces/tabs/newlines in single-quoted strings won't work.
+            std::vector<unsigned char> value(w.begin()+1, w.end()-1);
             result << value;
         }
         else if (mapOpNames.count(w))