DebugTools: update test to pass on clang-cl.

NaN printing strikes again.

src/Magnum/DebugTools/Test/CompareImageTest.cpp

@@ -510,7 +510,7 @@ void CompareImageTest::pixelDeltaSpecials() {
     Implementation::printPixelDeltas(d, DeltaSpecials, ActualSpecials.format(), ActualSpecials.pixels(), ExpectedSpecials.pixels(), 1.5f, 0.5f, 10);
 
     /* MSVC prints -nan(ind) instead of ±nan. But only sometimes. */
-    #ifdef _MSC_VER
+    #if defined(CORRADE_TARGET_MSVC) && !defined(CORRADE_TARGET_CLANG_CL)
     CORRADE_COMPARE(out.str(), "\n"
         "        Pixels above max/mean threshold:\n"
         "          [5,0] Vector(-inf), expected Vector(inf) (Δ = inf)\n"
@@ -675,7 +675,7 @@ void CompareImageTest::compareSpecials() {
     /* Apple platforms, Android and MinGW32 don't print signed NaNs. This is
        *not* a libc++ thing, tho -- libc++ on Linux prints signed NaNs. It used
        to be with Emscripten too, but since 1.38.44 works the same as Linux. */
-    #if defined(CORRADE_TARGET_APPLE) || defined(CORRADE_TARGET_ANDROID) || defined(__MINGW32__)
+    #if defined(CORRADE_TARGET_APPLE) || defined(CORRADE_TARGET_ANDROID) || defined(CORRADE_TARGET_MINGW)
     CORRADE_COMPARE(out.str(),
         "Images a and b have both max and mean delta above threshold, actual 3.1/nan but at most 1.5/0.5 expected. Delta image:\n"
         "          |MMMM M ,M|\n"
@@ -687,8 +687,21 @@ void CompareImageTest::compareSpecials() {
         "          [0,0] Vector(inf), expected Vector(1) (Δ = inf)\n"
         "          [8,0] Vector(3), expected Vector(-0.1) (Δ = 3.1)\n");
 
+    /* clang-cl prints -nan(ind) instead of ±nan, but differently than MSVC */
+    #elif defined(CORRADE_TARGET_CLANG_CL)
+    CORRADE_COMPARE(out.str(),
+        "Images a and b have both max and mean delta above threshold, actual 3.1/-nan(ind) but at most 1.5/0.5 expected. Delta image:\n"
+        "          |MMMM M ,M|\n"
+        "        Pixels above max/mean threshold:\n"
+        "          [5,0] Vector(-inf), expected Vector(inf) (Δ = inf)\n"
+        "          [3,0] Vector(0.3), expected Vector(nan) (Δ = nan)\n"
+        "          [2,0] Vector(nan), expected Vector(0.3) (Δ = nan)\n"
+        "          [1,0] Vector(0.3), expected Vector(-inf) (Δ = inf)\n"
+        "          [0,0] Vector(inf), expected Vector(1) (Δ = inf)\n"
+        "          [8,0] Vector(3), expected Vector(-0.1) (Δ = 3.1)\n");
+
     /* MSVC prints -nan(ind) instead of ±nan. But only sometimes. */
-    #elif defined(_MSC_VER)
+    #elif defined(CORRADE_TARGET_MSVC)
     CORRADE_COMPARE(out.str(),
         "Images a and b have both max and mean delta above threshold, actual 3.1/-nan(ind) but at most 1.5/0.5 expected. Delta image:\n"
         "          |MMMM M ,M|\n"
@@ -742,8 +755,21 @@ void CompareImageTest::compareSpecialsMeanOnly() {
         "          [0,0] Vector(inf), expected Vector(1) (Δ = inf)\n"
         "          [8,0] Vector(3), expected Vector(-0.1) (Δ = 3.1)\n");
 
+    /* clang-cl prints -nan(ind) instead of ±nan, but differently than MSVC */
+    #elif defined(CORRADE_TARGET_CLANG_CL)
+    CORRADE_COMPARE(out.str(),
+        "Images a and b have mean delta above threshold, actual -nan(ind) but at most 0.5 expected. Max delta 3.1 is within threshold 15. Delta image:\n"
+        "          |MMMM M ,M|\n"
+        "        Pixels above max/mean threshold:\n"
+        "          [5,0] Vector(-inf), expected Vector(inf) (Δ = inf)\n"
+        "          [3,0] Vector(0.3), expected Vector(nan) (Δ = nan)\n"
+        "          [2,0] Vector(nan), expected Vector(0.3) (Δ = nan)\n"
+        "          [1,0] Vector(0.3), expected Vector(-inf) (Δ = inf)\n"
+        "          [0,0] Vector(inf), expected Vector(1) (Δ = inf)\n"
+        "          [8,0] Vector(3), expected Vector(-0.1) (Δ = 3.1)\n");
+
     /* MSVC prints -nan(ind) instead of ±nan. But only sometimes. */
-    #elif defined(CORRADE_TARGET_WINDOWS) && defined(_MSC_VER)
+    #elif defined(CORRADE_TARGET_MSVC)
     CORRADE_COMPARE(out.str(),
         "Images a and b have mean delta above threshold, actual -nan(ind) but at most 0.5 expected. Max delta 3.1 is within threshold 15. Delta image:\n"
         "          |MMMM M ,M|\n"