xo-indentlog: + cond utest

utest/cond.test.cpp

@@ -0,0 +1,47 @@
+/* @file cond.test.cpp */
+
+#include "xo/indentlog/print/cond.hpp"
+#include "xo/indentlog/print/tag.hpp"
+#include <catch2/catch.hpp>
+#include <sstream>
+
+using namespace xo;
+
+namespace ut {
+    TEST_CASE("cond", "[cond]") {
+        tag_config::tag_color = color_spec_type::none();
+
+        {
+            std::stringstream ss;
+            ss << cond(true, "yes", "no");
+            REQUIRE(ss.str() == "yes");
+        }
+
+        {
+            std::stringstream ss;
+            ss << cond(false, "yes", "no");
+            REQUIRE(ss.str() == "no");
+        }
+
+        {
+            std::stringstream ss;
+            ss << cond(true, 42, "none");
+            REQUIRE(ss.str() == "42");
+        }
+
+        {
+            std::stringstream ss;
+            ss << cond(false, 42, "none");
+            REQUIRE(ss.str() == "none");
+        }
+
+        {
+            std::stringstream ss;
+            int * ptr = nullptr;
+            ss << cond(ptr != nullptr, xtag("ptr", 123), xtag("ptr", "null"));
+            REQUIRE(ss.str() == " :ptr null");
+        }
+    }
+}
+
+/* end cond.test.cpp */