diff --git a/src/Makefile.test.include b/src/Makefile.test.include
index be63214c238..d70793ffa92 100644
--- a/src/Makefile.test.include
+++ b/src/Makefile.test.include
@@ -119,8 +119,9 @@ BITCOIN_TESTS =\
   test/sanity_tests.cpp \
   test/scheduler_tests.cpp \
   test/script_p2sh_tests.cpp \
-  test/script_tests.cpp \
+  test/script_parse_tests.cpp \
   test/script_standard_tests.cpp \
+  test/script_tests.cpp \
   test/scriptnum_tests.cpp \
   test/serfloat_tests.cpp \
   test/serialize_tests.cpp \
diff --git a/src/test/script_parse_tests.cpp b/src/test/script_parse_tests.cpp
new file mode 100644
index 00000000000..5b8b6a725f7
--- /dev/null
+++ b/src/test/script_parse_tests.cpp
@@ -0,0 +1,55 @@
+// Copyright (c) 2021 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <core_io.h>
+#include <script/script.h>
+#include <util/strencodings.h>
+#include <test/util/setup_common.h>
+
+#include <boost/test/unit_test.hpp>
+
+BOOST_AUTO_TEST_SUITE(script_parse_tests)
+BOOST_AUTO_TEST_CASE(parse_script)
+{
+    const std::vector<std::pair<std::string,std::string>> IN_OUT{
+        // {IN: script string , OUT: hex string }
+        {"", ""},
+        {"0", "00"},
+        {"1", "51"},
+        {"2", "52"},
+        {"3", "53"},
+        {"4", "54"},
+        {"5", "55"},
+        {"6", "56"},
+        {"7", "57"},
+        {"8", "58"},
+        {"9", "59"},
+        {"10", "5a"},
+        {"11", "5b"},
+        {"12", "5c"},
+        {"13", "5d"},
+        {"14", "5e"},
+        {"15", "5f"},
+        {"16", "60"},
+        {"17", "0111"},
+        {"-9", "0189"},
+        {"0x17", "17"},
+        {"'17'", "023137"},
+        {"ELSE", "67"},
+        {"NOP10", "b9"},
+        {"11111111111111111111", "00"},
+    };
+    std::string all_in;
+    std::string all_out;
+    for (const auto& [in, out] : IN_OUT) {
+        BOOST_CHECK_EQUAL(HexStr(ParseScript(in)), out);
+        all_in += " " + in + " ";
+        all_out += out;
+    }
+    BOOST_CHECK_EQUAL(HexStr(ParseScript(all_in)), all_out);
+
+    BOOST_CHECK_EXCEPTION(ParseScript("11111111111"), std::runtime_error, HasReason("script parse error: decimal numeric value only allowed in the range -0xFFFFFFFF...0xFFFFFFFF"));
+    BOOST_CHECK_EXCEPTION(ParseScript("OP_CHECKSIGADD"), std::runtime_error, HasReason("script parse error: unknown opcode"));
+}
+BOOST_AUTO_TEST_SUITE_END()
diff --git a/src/test/util_tests.cpp b/src/test/util_tests.cpp
index 51707310a2d..b5088d3c333 100644
--- a/src/test/util_tests.cpp
+++ b/src/test/util_tests.cpp
@@ -1239,6 +1239,11 @@ BOOST_AUTO_TEST_CASE(util_FormatMoney)
 BOOST_AUTO_TEST_CASE(util_ParseMoney)
 {
     BOOST_CHECK_EQUAL(ParseMoney("0.0").value(), 0);
+    BOOST_CHECK_EQUAL(ParseMoney(".").value(), 0);
+    BOOST_CHECK_EQUAL(ParseMoney("0.").value(), 0);
+    BOOST_CHECK_EQUAL(ParseMoney(".0").value(), 0);
+    BOOST_CHECK_EQUAL(ParseMoney(".6789").value(), 6789'0000);
+    BOOST_CHECK_EQUAL(ParseMoney("12345.").value(), COIN * 12345);
 
     BOOST_CHECK_EQUAL(ParseMoney("12345.6789").value(), (COIN/10000)*123456789);
 
@@ -1276,11 +1281,18 @@ BOOST_AUTO_TEST_CASE(util_ParseMoney)
     BOOST_CHECK(!ParseMoney("  "));
 
     // Parsing two numbers should fail
+    BOOST_CHECK(!ParseMoney(".."));
+    BOOST_CHECK(!ParseMoney("0..0"));
     BOOST_CHECK(!ParseMoney("1 2"));
     BOOST_CHECK(!ParseMoney(" 1 2 "));
     BOOST_CHECK(!ParseMoney(" 1.2 3 "));
     BOOST_CHECK(!ParseMoney(" 1 2.3 "));
 
+    // Embedded whitespace should fail
+    BOOST_CHECK(!ParseMoney(" -1 .2  "));
+    BOOST_CHECK(!ParseMoney("  1 .2  "));
+    BOOST_CHECK(!ParseMoney(" +1 .2  "));
+
     // Attempted 63 bit overflow should fail
     BOOST_CHECK(!ParseMoney("92233720368.54775808"));