Split test utilities out into its own file.
authorSteinar H. Gunderson <sgunderson@bigfoot.com>
Thu, 11 Oct 2012 23:59:36 +0000 (01:59 +0200)
committerSteinar H. Gunderson <sgunderson@bigfoot.com>
Thu, 11 Oct 2012 23:59:36 +0000 (01:59 +0200)
Makefile
effect_chain_test.cpp
test_util.cpp [new file with mode: 0644]
test_util.h [new file with mode: 0644]

index c297455..0ebb884 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -37,8 +37,8 @@ LIB_OBJS += sandbox_effect.o
 # Default target:
 all: $(TESTS) demo
 
-# Google Test.
-GTEST_OBJS = gtest-all.o gtest_sdl_main.o
+# Google Test and other test library functions.
+TEST_OBJS = gtest-all.o gtest_sdl_main.o test_util.o
 
 gtest-all.o: $(GTEST_DIR)/src/gtest-all.cc
        $(CXX) -MMD $(CPPFLAGS) -I$(GTEST_DIR) $(CXXFLAGS) -c $< -o $@
@@ -46,8 +46,8 @@ gtest_sdl_main.o: gtest_sdl_main.cpp
        $(CXX) -MMD $(CPPFLAGS) -I$(GTEST_DIR) $(CXXFLAGS) -c $< -o $@
 
 # Unit tests.
-effect_chain_test: effect_chain_test.o $(GTEST_OBJS) libmovit.a
-       $(CXX) -o $@ effect_chain_test.o $(GTEST_OBJS) libmovit.a $(LDFLAGS)
+effect_chain_test: effect_chain_test.o $(TEST_OBJS) libmovit.a
+       $(CXX) -o $@ effect_chain_test.o $(TEST_OBJS) libmovit.a $(LDFLAGS)
 
 OBJS=$(DEMO_OBJS) $(LIB_OBJS) $(GDEMO_OBJS)
 
index a85fb36..e5ca1cc 100644 (file)
@@ -4,99 +4,10 @@
 
 #include "effect_chain.h"
 #include "flat_input.h"
+#include "gtest/gtest.h"
 #include "mirror_effect.h"
 #include "opengl.h"
-#include "gtest/gtest.h"
-
-#include <stdio.h>
-#include <math.h>
-
-#include <algorithm>
-
-class EffectChainTester {
-public:
-       EffectChainTester(const float *data, unsigned width, unsigned height, ColorSpace color_space, GammaCurve gamma_curve)
-               : chain(width, height), width(width), height(height)
-       {
-               ImageFormat format;
-               format.color_space = color_space;
-               format.gamma_curve = gamma_curve;
-       
-               FlatInput *input = new FlatInput(format, FORMAT_GRAYSCALE, GL_FLOAT, width, height);
-               input->set_pixel_data(data);
-               chain.add_input(input);
-       }
-
-       EffectChain *get_chain() { return &chain; }
-
-       void run(float *out_data, ColorSpace color_space, GammaCurve gamma_curve)
-       {
-               ImageFormat format;
-               format.color_space = color_space;
-               format.gamma_curve = gamma_curve;
-               chain.add_output(format);
-               chain.finalize();
-
-               glViewport(0, 0, width, height);
-               chain.render_to_screen();
-
-               glReadPixels(0, 0, width, height, GL_RED, GL_FLOAT, out_data);
-
-               // Flip upside-down to compensate for different origin.
-               for (unsigned y = 0; y < height / 2; ++y) {
-                       unsigned flip_y = height - y - 1;
-                       for (unsigned x = 0; x < width; ++x) {
-                               std::swap(out_data[y * width + x], out_data[flip_y * width + x]);
-                       }
-               }
-       }
-
-private:
-       EffectChain chain;
-       unsigned width, height;
-};
-
-void expect_equal(const float *ref, const float *result, unsigned width, unsigned height)
-{
-       float largest_difference = -1.0f;
-       float squared_difference = 0.0f;
-
-       for (unsigned y = 0; y < height; ++y) {
-               for (unsigned x = 0; x < width; ++x) {
-                       float diff = ref[y * width + x] - result[y * width + x];
-                       largest_difference = std::max(largest_difference, fabsf(diff));
-                       squared_difference += diff * diff;
-               }
-       }
-
-       const float largest_difference_limit = 1.5 / 255.0;
-       const float rms_limit = 0.5 / 255.0;
-
-       EXPECT_LT(largest_difference, largest_difference_limit);
-
-       float rms = sqrt(squared_difference) / (width * height);
-       EXPECT_LT(rms, rms_limit);
-
-       if (largest_difference >= largest_difference_limit || rms >= rms_limit) {
-               fprintf(stderr, "Dumping matrices for easier debugging, since at least one test failed.\n");
-
-               fprintf(stderr, "Reference:\n");
-               for (unsigned y = 0; y < height; ++y) {
-                       for (unsigned x = 0; x < width; ++x) {
-                               fprintf(stderr, "%7.4f ", ref[y * width + x]);
-                       }
-                       fprintf(stderr, "\n");
-               }
-
-               fprintf(stderr, "\nResult:\n");
-               for (unsigned y = 0; y < height; ++y) {
-                       for (unsigned x = 0; x < width; ++x) {
-                               fprintf(stderr, "%7.4f ", result[y * width + x]);
-                       }
-                       fprintf(stderr, "\n");
-               }
-       }
-}
+#include "test_util.h"
 
 TEST(EffectChainTest, EmptyChain) {
        float data[] = {
diff --git a/test_util.cpp b/test_util.cpp
new file mode 100644 (file)
index 0000000..a52eb79
--- /dev/null
@@ -0,0 +1,84 @@
+#include "test_util.h"
+#include "flat_input.h"
+#include "gtest/gtest.h"
+
+#include <stdio.h>
+#include <math.h>
+
+#include <algorithm>
+
+EffectChainTester::EffectChainTester(const float *data, unsigned width, unsigned height, ColorSpace color_space, GammaCurve gamma_curve)
+       : chain(width, height), width(width), height(height)
+{
+       ImageFormat format;
+       format.color_space = color_space;
+       format.gamma_curve = gamma_curve;
+
+       FlatInput *input = new FlatInput(format, FORMAT_GRAYSCALE, GL_FLOAT, width, height);
+       input->set_pixel_data(data);
+       chain.add_input(input);
+}
+
+void EffectChainTester::run(float *out_data, ColorSpace color_space, GammaCurve gamma_curve)
+{
+       ImageFormat format;
+       format.color_space = color_space;
+       format.gamma_curve = gamma_curve;
+       chain.add_output(format);
+       chain.finalize();
+
+       glViewport(0, 0, width, height);
+       chain.render_to_screen();
+
+       glReadPixels(0, 0, width, height, GL_RED, GL_FLOAT, out_data);
+
+       // Flip upside-down to compensate for different origin.
+       for (unsigned y = 0; y < height / 2; ++y) {
+               unsigned flip_y = height - y - 1;
+               for (unsigned x = 0; x < width; ++x) {
+                       std::swap(out_data[y * width + x], out_data[flip_y * width + x]);
+               }
+       }
+}
+
+void expect_equal(const float *ref, const float *result, unsigned width, unsigned height)
+{
+       float largest_difference = -1.0f;
+       float squared_difference = 0.0f;
+
+       for (unsigned y = 0; y < height; ++y) {
+               for (unsigned x = 0; x < width; ++x) {
+                       float diff = ref[y * width + x] - result[y * width + x];
+                       largest_difference = std::max(largest_difference, fabsf(diff));
+                       squared_difference += diff * diff;
+               }
+       }
+
+       const float largest_difference_limit = 1.5 / 255.0;
+       const float rms_limit = 0.5 / 255.0;
+
+       EXPECT_LT(largest_difference, largest_difference_limit);
+
+       float rms = sqrt(squared_difference) / (width * height);
+       EXPECT_LT(rms, rms_limit);
+
+       if (largest_difference >= largest_difference_limit || rms >= rms_limit) {
+               fprintf(stderr, "Dumping matrices for easier debugging, since at least one test failed.\n");
+
+               fprintf(stderr, "Reference:\n");
+               for (unsigned y = 0; y < height; ++y) {
+                       for (unsigned x = 0; x < width; ++x) {
+                               fprintf(stderr, "%7.4f ", ref[y * width + x]);
+                       }
+                       fprintf(stderr, "\n");
+               }
+
+               fprintf(stderr, "\nResult:\n");
+               for (unsigned y = 0; y < height; ++y) {
+                       for (unsigned x = 0; x < width; ++x) {
+                               fprintf(stderr, "%7.4f ", result[y * width + x]);
+                       }
+                       fprintf(stderr, "\n");
+               }
+       }
+}
diff --git a/test_util.h b/test_util.h
new file mode 100644 (file)
index 0000000..ed0275e
--- /dev/null
@@ -0,0 +1,19 @@
+#ifndef _TEST_UTIL_H
+#define _TEST_UTIL_H 1
+
+#include "effect_chain.h"
+
+class EffectChainTester {
+public:
+       EffectChainTester(const float *data, unsigned width, unsigned height, ColorSpace color_space, GammaCurve gamma_curve);
+       EffectChain *get_chain() { return &chain; }
+       void run(float *out_data, ColorSpace color_space, GammaCurve gamma_curve);
+
+private:
+       EffectChain chain;
+       unsigned width, height;
+};
+
+void expect_equal(const float *ref, const float *result, unsigned width, unsigned height);
+
+#endif  // !defined(_TEST_UTIL_H)