Bitcoin: add deterministic RPC and monetary regression test harness

Author: mearvk

source/bitcoin/test/BitcoinRpcPolicyTest.java

@@ -0,0 +1,37 @@
+package bitcoin.test;
+
+import bitcoin.base.BitcoinRpcPolicy;
+
+/** Deterministic, dependency-free regression checks for Bitcoin input policy. */
+public final class BitcoinRpcPolicyTest
+{
+    public static void main(final String[] args)
+    {
+        assertEquals(100000000L, BitcoinRpcPolicy.requireSatoshis("1"));
+        assertEquals(1L, BitcoinRpcPolicy.requireSatoshis("0.00000001"));
+        assertEquals(123456789L, BitcoinRpcPolicy.requireSatoshis("1.23456789"));
+        assertRejected("0");
+        assertRejected("-1");
+        assertRejected("0.000000001");
+        assertRejected("not-a-number");
+        assertRejected("92233720368");
+        if (!BitcoinRpcPolicy.isAllowed("getbalance")) throw new AssertionError("getbalance must be allowed");
+        if (BitcoinRpcPolicy.isAllowed("importprivkey")) throw new AssertionError("importprivkey must remain outside the server RPC surface");
+        BitcoinRpcPolicy.requireAddress("bcrt1qexampleaddressmuststillfail");
+    }
+
+    private static void assertRejected(final String value)
+    {
+        try
+        {
+            BitcoinRpcPolicy.requireSatoshis(value);
+            throw new AssertionError("Expected rejection: " + value);
+        }
+        catch (IllegalArgumentException expected) { }
+    }
+
+    private static void assertEquals(final long expected, final long actual)
+    {
+        if (expected != actual) throw new AssertionError("Expected " + expected + " but got " + actual);
+    }
+}