Unit tests for the GetArg() methods

src/test/getarg_tests.cpp

+#include <boost/algorithm/string.hpp>
+#include <boost/foreach.hpp>
+#include <boost/test/unit_test.hpp>
+
+#include "util.h"
+
+BOOST_AUTO_TEST_SUITE(getarg_tests)
+
+static void
+ResetArgs(const std::string& strArg)
+{
+    std::vector<std::string> vecArg;
+    boost::split(vecArg, strArg, boost::is_space(), boost::token_compress_on);
+
+    // Insert dummy executable name:
+    vecArg.insert(vecArg.begin(), "testbitcoin");
+
+    // Convert to char*:
+    std::vector<const char*> vecChar;
+    BOOST_FOREACH(std::string& s, vecArg)
+        vecChar.push_back(s.c_str());
+
+    ParseParameters(vecChar.size(), &vecChar[0]);
+}
+
+BOOST_AUTO_TEST_CASE(boolarg)
+{
+    ResetArgs("-foo");
+    BOOST_CHECK(GetBoolArg("-foo"));
+    BOOST_CHECK(GetBoolArg("-foo", false));
+    BOOST_CHECK(GetBoolArg("-foo", true));
+
+    BOOST_CHECK(!GetBoolArg("-fo"));
+    BOOST_CHECK(!GetBoolArg("-fo", false));
+    BOOST_CHECK(GetBoolArg("-fo", true));
+
+    BOOST_CHECK(!GetBoolArg("-fooo"));
+    BOOST_CHECK(!GetBoolArg("-fooo", false));
+    BOOST_CHECK(GetBoolArg("-fooo", true));
+
+    ResetArgs("-foo=0");
+    BOOST_CHECK(!GetBoolArg("-foo"));
+    BOOST_CHECK(!GetBoolArg("-foo", false));
+    BOOST_CHECK(!GetBoolArg("-foo", true));
+
+    ResetArgs("-foo=1");
+    BOOST_CHECK(GetBoolArg("-foo"));
+    BOOST_CHECK(GetBoolArg("-foo", false));
+    BOOST_CHECK(GetBoolArg("-foo", true));
+}
+
+BOOST_AUTO_TEST_CASE(stringarg)
+{
+    ResetArgs("");
+    BOOST_CHECK_EQUAL(GetArg("-foo", ""), "");
+    BOOST_CHECK_EQUAL(GetArg("-foo", "eleven"), "eleven");
+
+    ResetArgs("-foo -bar");
+    BOOST_CHECK_EQUAL(GetArg("-foo", ""), "");
+    BOOST_CHECK_EQUAL(GetArg("-foo", "eleven"), "");
+
+    ResetArgs("-foo=");
+    BOOST_CHECK_EQUAL(GetArg("-foo", ""), "");
+    BOOST_CHECK_EQUAL(GetArg("-foo", "eleven"), "");
+
+    ResetArgs("-foo=11");
+    BOOST_CHECK_EQUAL(GetArg("-foo", ""), "11");
+    BOOST_CHECK_EQUAL(GetArg("-foo", "eleven"), "11");
+
+    ResetArgs("-foo=eleven");
+    BOOST_CHECK_EQUAL(GetArg("-foo", ""), "eleven");
+    BOOST_CHECK_EQUAL(GetArg("-foo", "eleven"), "eleven");
+
+}
+
+BOOST_AUTO_TEST_CASE(intarg)
+{
+    ResetArgs("");
+    BOOST_CHECK_EQUAL(GetArg("-foo", 11), 11);
+    BOOST_CHECK_EQUAL(GetArg("-foo", 0), 0);
+
+    ResetArgs("-foo -bar");
+    BOOST_CHECK_EQUAL(GetArg("-foo", 11), 0);
+    BOOST_CHECK_EQUAL(GetArg("-bar", 11), 0);
+
+    ResetArgs("-foo=11 -bar=12");
+    BOOST_CHECK_EQUAL(GetArg("-foo", 0), 11);
+    BOOST_CHECK_EQUAL(GetArg("-bar", 11), 12);
+
+    ResetArgs("-foo=NaN -bar=NotANumber");
+    BOOST_CHECK_EQUAL(GetArg("-foo", 1), 0);
+    BOOST_CHECK_EQUAL(GetArg("-bar", 11), 0);
+}
+
+BOOST_AUTO_TEST_SUITE_END()

src/util.cpp

@@ -454,7 +454,7 @@ vector<unsigned char> ParseHex(const string& str)
     return ParseHex(str.c_str());
 }
 
-void ParseParameters(int argc, char* argv[])
+void ParseParameters(int argc, const char*const argv[])
 {
     mapArgs.clear();
     mapMultiArgs.clear();
@@ -480,6 +480,31 @@ void ParseParameters(int argc, char* argv[])
     }
 }
 
+std::string GetArg(const std::string& strArg, const std::string& strDefault)
+{
+    if (mapArgs.count(strArg))
+        return mapArgs[strArg];
+    return strDefault;
+}
+
+int64 GetArg(const std::string& strArg, int64 nDefault)
+{
+    if (mapArgs.count(strArg))
+        return atoi64(mapArgs[strArg]);
+    return nDefault;
+}
+
+bool GetBoolArg(const std::string& strArg, bool fDefault)
+{
+    if (mapArgs.count(strArg))
+    {
+        if (mapArgs[strArg].empty())
+            return true;
+        return (atoi(mapArgs[strArg]) != 0);
+    }
+    return fDefault;
+}
+
 bool SoftSetArg(const std::string& strArg, const std::string& strValue)
 {
     if (mapArgs.count(strArg))

src/util.h

@@ -143,7 +143,7 @@ std::vector<unsigned char> DecodeBase64(const char* p, bool* pfInvalid = NULL);
 std::string DecodeBase64(const std::string& str);
 std::string EncodeBase64(const unsigned char* pch, size_t len);
 std::string EncodeBase64(const std::string& str);
-void ParseParameters(int argc, char* argv[]);
+void ParseParameters(int argc, const char*const argv[]);
 bool WildcardMatch(const char* psz, const char* mask);
 bool WildcardMatch(const std::string& str, const std::string& mask);
 int GetFilesize(FILE* file);
@@ -401,30 +401,32 @@ inline bool IsSwitchChar(char c)
 #endif
 }
 
-inline std::string GetArg(const std::string& strArg, const std::string& strDefault)
-{
-    if (mapArgs.count(strArg))
-        return mapArgs[strArg];
-    return strDefault;
-}
+/**
+ * Return string argument or default value
+ *
+ * @param strArg Argument to get (e.g. "-foo")
+ * @param default (e.g. "1")
+ * @return command-line argument or default value
+ */
+std::string GetArg(const std::string& strArg, const std::string& strDefault);
 
-inline int64 GetArg(const std::string& strArg, int64 nDefault)
-{
-    if (mapArgs.count(strArg))
-        return atoi64(mapArgs[strArg]);
-    return nDefault;
-}
+/**
+ * Return integer argument or default value
+ *
+ * @param strArg Argument to get (e.g. "-foo")
+ * @param default (e.g. 1)
+ * @return command-line argument (0 if invalid number) or default value
+ */
+int64 GetArg(const std::string& strArg, int64 nDefault);
 
-inline bool GetBoolArg(const std::string& strArg, bool fDefault=false)
-{
-    if (mapArgs.count(strArg))
-    {
-        if (mapArgs[strArg].empty())
-            return true;
-        return (atoi(mapArgs[strArg]) != 0);
-    }
-    return fDefault;
-}
+/**
+ * Return boolean argument or default value
+ *
+ * @param strArg Argument to get (e.g. "-foo")
+ * @param default (true or false)
+ * @return command-line argument or default value
+ */
+bool GetBoolArg(const std::string& strArg, bool fDefault=false);
 
 /**
  * Set an argument if it doesn't already have a value