Adding ini print and simple tests

CHANGELOG.md

@@ -2,7 +2,9 @@
 
 * Updates to help print
 * Removed `run`, please use `parse` unless you subclass and add it
-* Supports ini files mixed with command line
+* Supports ini files mixed with command line, tested
+* Added Range for further Plumbum compatibility
+* Added function to print out ini file
 
 ## Version 0.3
 

include/CLI/App.hpp

@@ -100,6 +100,15 @@ public:
         return ini_setting;
     }
 
+    /// Produce a string that could be read in as a config of the current values of the App
+    std::string config_to_str() const {
+        std::stringstream out;
+        for(const Option_p &opt : options) {
+            if(opt->lnames.size() > 0 && opt->count() > 0)
+                out << opt->lnames[0] << "=" << detail::join(opt->flatten_results()) << std::endl;
+        }
+        return out.str();
+    }
     
     /// Add a subcommand. Like the constructor, you can override the help message addition by setting help=false
     App* add_subcommand(std::string name, std::string description="", bool help=true) {

tests/IniTest.cpp

@@ -2,6 +2,9 @@
 
 #include <cstdio>
 #include <sstream>
+#include "gmock/gmock.h"
+ 
+using ::testing::HasSubstr;
 
 TEST(StringBased, First) {
     std::stringstream ofile;
@@ -134,3 +137,34 @@ TEST_F(TApp, IniRequired) {
     EXPECT_THROW(run(), CLI::RequiredError);
 
 }
+
+TEST_F(TApp, IniOutputSimple) {
+
+    int v;
+    app.add_option("--simple", v);
+
+    args = {"--simple=3"};
+
+    run();
+
+    std::string str = app.config_to_str();
+    EXPECT_EQ("simple=3\n", str);
+
+}
+
+
+TEST_F(TApp, IniOutputFlag) {
+
+    int v;
+    app.add_option("--simple", v);
+    app.add_flag("--nothing");
+
+    args = {"--simple=3", "--nothing"};
+
+    run();
+
+    std::string str = app.config_to_str();
+    EXPECT_THAT(str, HasSubstr("simple=3"));
+    EXPECT_THAT(str, HasSubstr("nothing="));
+
+}