Fix tests compilation in clang

src/app/color_tests.cpp

@@ -22,10 +22,14 @@
 
 using namespace app;
 
+namespace app {
+
   inline std::ostream& operator<<(std::ostream& os, const Color& color) {
     return os << color.toString();
   }
   
+}
+
 TEST(Color, fromRgb)
 {
   EXPECT_EQ(32, Color::fromRgb(32, 16, 255).getRed());

src/app/document_range_tests.cpp

@@ -31,6 +31,15 @@
 using namespace app;
 using namespace raster;
 
+namespace app {
+
+  std::ostream& operator<<(std::ostream& os, const DocumentRange& range) {
+    return os << "{ layers: [" << range.layerBegin() << ", " << range.layerEnd() << "]"
+              << ", frames: [" << range.frameBegin() << ", " << range.frameEnd() << "] }";
+  }
+
+}
+
 typedef base::UniquePtr<Document> DocumentPtr;
 
 #define EXPECT_LAYER_ORDER(a, b, c, d)               \
@@ -123,11 +132,6 @@ inline DocumentRange frames_range(int frame) {
   return range(0, frame, 0, frame, DocumentRange::kFrames);
 }
 
-std::ostream& operator<<(std::ostream& os, const DocumentRange& range) {
-  return os << "{ layers: [" << range.layerBegin() << ", " << range.layerEnd() << "]"
-            << ", frames: [" << range.frameBegin() << ", " << range.frameEnd() << "] }";
-}
-
 TEST_F(DocRangeOps, MoveLayersNoOp) {
   // Move one layer to the same place
 

src/base/version_tests.cpp

@@ -11,11 +11,14 @@
 
 using namespace base;
 
-std::ostream& operator<<(std::ostream& os, const Version& ver)
-{
+namespace base {
+
+  std::ostream& operator<<(std::ostream& os, const Version& ver) {
     return os << convert_to<std::string>(ver);
   }
   
+}
+
 TEST(Version, Ctor)
 {
   Version v0;

src/css/css_tests.cpp

@@ -9,9 +9,10 @@
 #include "css/css.h"
 
 using namespace css;
-using namespace std;
 
-ostream& operator<<(ostream& os, const Value& value)
+namespace css {
+
+  std::ostream& operator<<(std::ostream& os, const Value& value)
   {
     os << "(" << value.type();
 
@@ -24,6 +25,8 @@ ostream& operator<<(ostream& os, const Value& value)
     return os;
   }
   
+} // namespace css
+
 TEST(Css, Style)
 {
   Rule background("background");

src/gfx/hsv_tests.cpp

@@ -12,6 +12,8 @@
 using namespace gfx;
 using namespace std;
 
+namespace gfx {
+
   ostream& operator<<(ostream& os, const Hsv& hsv)
   {
     return os << "("
@@ -23,6 +25,8 @@ ostream& operator<<(ostream& os, const Hsv& hsv)
               << hsv.value() << ")";
   }
   
+}
+
 TEST(Hsv, Ctor)
 {
   EXPECT_EQ(35.0, Hsv(35.0, 0.50, 0.75).hue());

src/gfx/rect_tests.cpp

@@ -13,6 +13,8 @@
 using namespace std;
 using namespace gfx;
 
+namespace gfx {
+
   ostream& operator<<(ostream& os, const Rect& rect)
   {
     return os << "("
@@ -22,6 +24,8 @@ ostream& operator<<(ostream& os, const Rect& rect)
               << rect.h << ")";
   }
   
+}
+
 TEST(Rect, Ctor)
 {
   EXPECT_EQ(Rect(0, 0, 0, 0), Rect());

src/gfx/region_tests.cpp

@@ -12,8 +12,9 @@
 using namespace std;
 using namespace gfx;
 
-ostream& operator<<(ostream& os, const Rect& rect)
-{
+namespace gfx {
+
+  ostream& operator<<(ostream& os, const Rect& rect) {
     return os << "("
               << rect.x << ", "
               << rect.y << ", "
@@ -21,6 +22,8 @@ ostream& operator<<(ostream& os, const Rect& rect)
               << rect.h << ")";
   }
   
+}
+
 ostream& operator<<(ostream& os, const Region& rgn)
 {
   os << "{";

src/gfx/rgb_tests.cpp

@@ -12,14 +12,17 @@
 using namespace gfx;
 using namespace std;
 
-ostream& operator<<(ostream& os, const Rgb& rgb)
-{
+namespace gfx {
+
+  ostream& operator<<(ostream& os, const Rgb& rgb) {
     return os << "("
               << rgb.red() << ", "
               << rgb.green() << ", "
               << rgb.blue() << ")";
   }
   
+}
+
 TEST(Rgb, Ctor)
 {
   EXPECT_EQ(1, Rgb(1, 2, 3).red());