1 files changed, 55 insertions, 0 deletions
diff --git a/test/util/number_conversions.test.cpp b/test/util/number_conversions.test.cpp
new file mode 100644
index 0000000000..cfeda3eec7
--- /dev/null
+++ b/test/util/number_conversions.test.cpp
@@ -0,0 +1,55 @@
+#include <iostream>
+#include <mbgl/test/util.hpp>
+
+#include <mbgl/util/string.hpp>
+
+using namespace mbgl;
+
+TEST(NumberConversions, number_to_string) {
+    EXPECT_EQ("0", util::toString(0));
+    EXPECT_EQ("10", util::toString(10));
+    EXPECT_EQ("-10", util::toString(-10));
+    EXPECT_EQ("10", util::toString(10.0));
+    EXPECT_EQ("-10", util::toString(-10.0));
+
+    EXPECT_EQ("1", util::toString(1));
+    EXPECT_EQ("-1", util::toString(-1));
+    EXPECT_EQ("32768", util::toString(32768));
+    EXPECT_EQ("-32768", util::toString(-32768));
+
+    EXPECT_EQ("1", util::toString(1.000000));
+    EXPECT_EQ("-1", util::toString(-1.000000));
+    EXPECT_EQ("32768", util::toString(32768.000000));
+    EXPECT_EQ("-32768", util::toString(-32768.000000));
+
+    EXPECT_EQ("1.01", util::toString(1.01));
+    EXPECT_EQ("-1.01", util::toString(-1.01));
+    EXPECT_EQ("32768.01", util::toString(32768.01));
+    EXPECT_EQ("-32768.01", util::toString(-32768.01));
+
+    EXPECT_EQ("1.01", util::toString(1.0100));
+    EXPECT_EQ("-1.01", util::toString(-1.0100));
+    EXPECT_EQ("32768.01", util::toString(32768.0100));
+    EXPECT_EQ("-32768.01", util::toString(-32768.0100));
+
+    EXPECT_EQ("1.123456", util::toString(1.123456));
+    EXPECT_EQ("-1.123456", util::toString(-1.123456));
+    EXPECT_EQ("32768.123456", util::toString(32768.123456));
+    EXPECT_EQ("-32768.123456", util::toString(-32768.123456));
+
+    EXPECT_EQ("1.123456789", util::toString(1.123456789));
+    EXPECT_EQ("-1.123456789", util::toString(-1.123456789));
+    EXPECT_EQ("32768.123456789", util::toString(32768.123456789));
+    EXPECT_EQ("-32768.123456789", util::toString(-32768.123456789));
+
+    EXPECT_EQ("3.141592653589793", util::toString(3.1415926535897932385128089594061862044327426701784));
+    EXPECT_EQ("-3.141592653589793", util::toString(-3.1415926535897932385128089594061862044327426701784));
+
+    EXPECT_EQ("123456789", util::toString(123456789));
+
+    EXPECT_EQ("0.0000532", util::toString((long double)5.32e-5));
+    EXPECT_EQ("5.32e-40", util::toString((long double)5.32e-40));
+
+    EXPECT_EQ("10", util::toString(unsigned(10)));
+    EXPECT_EQ("10", util::toString(unsigned(10.0)));
+}