add initial unittest framework (tests)
move some previous unittests out of core classes and into tests



git-svn-id: http://skia.googlecode.com/svn/trunk@96 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tests/main.cpp b/tests/main.cpp
new file mode 100644
index 0000000..0b82af4
--- /dev/null
+++ b/tests/main.cpp
@@ -0,0 +1,67 @@
+#include <iostream>
+
+#include "Test.h"
+
+using namespace skiatest;
+
+class Iter {
+public:
+    Iter(Reporter* r) : fReporter(r) {
+        r->ref();
+        fReg = TestRegistry::Head();
+    }
+    
+    ~Iter() {
+        fReporter->unref();
+    }
+    
+    Test* next() {
+        if (fReg) {
+            TestRegistry::Factory fact = fReg->factory();
+            fReg = fReg->next();
+            Test* test = fact(NULL);
+            test->setReporter(fReporter);
+            return test;
+        }
+        return NULL;
+    }
+    
+private:
+    Reporter* fReporter;
+    const TestRegistry* fReg;
+};
+
+static const char* result2string(Reporter::Result result) {
+    return result == Reporter::kPassed ? "passed" : "FAILED";
+}
+
+class PrintfReporter : public Reporter {
+protected:
+    virtual void onStart(Test* test) {
+        printf("Running %s...\n", test->getName());
+    }
+    virtual void onReport(const char desc[], Reporter::Result result) {
+        printf("\t%s: %s\n", result2string(result), desc);
+    }
+    virtual void onEnd(Test* test) {}
+};
+
+int main (int argc, char * const argv[]) {
+    PrintfReporter reporter;
+    Iter iter(&reporter);
+    Test* test;
+    
+    while ((test = iter.next()) != NULL) {
+        test->run();
+        SkDELETE(test);
+    }
+    
+    int total = reporter.countTests();
+    int passed = reporter.countResults(Reporter::kPassed);
+    int failed = reporter.countResults(Reporter::kFailed);
+    printf("Tests=%d Passed=%d (%g%%) Failed=%d (%g%%)\n", total,
+           passed, passed * 100.f / total,
+           failed, failed * 100.f / total);
+
+    return 0;
+}