migrate more legacy unittests into tests/
SkParse yet to be cleaned up
git-svn-id: http://skia.googlecode.com/svn/trunk@113 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tests/StreamTest.cpp b/tests/StreamTest.cpp
new file mode 100644
index 0000000..704ab4a
--- /dev/null
+++ b/tests/StreamTest.cpp
@@ -0,0 +1,111 @@
+#include "Test.h"
+#include "SkRandom.h"
+#include "SkStream.h"
+
+#define MAX_SIZE (256 * 1024)
+
+static void random_fill(SkRandom& rand, void* buffer, size_t size) {
+ char* p = (char*)buffer;
+ char* stop = p + size;
+ while (p < stop) {
+ *p++ = (char)(rand.nextU() >> 8);
+ }
+}
+
+static void test_buffer(skiatest::Reporter* reporter) {
+ SkRandom rand;
+ SkAutoMalloc am(MAX_SIZE * 2);
+ char* storage = (char*)am.get();
+ char* storage2 = storage + MAX_SIZE;
+
+ random_fill(rand, storage, MAX_SIZE);
+
+ for (int sizeTimes = 0; sizeTimes < 100; sizeTimes++) {
+ int size = rand.nextU() % MAX_SIZE;
+ if (size == 0) {
+ size = MAX_SIZE;
+ }
+ for (int times = 0; times < 100; times++) {
+ int bufferSize = 1 + (rand.nextU() & 0xFFFF);
+ SkMemoryStream mstream(storage, size);
+ SkBufferStream bstream(&mstream, bufferSize);
+
+ int bytesRead = 0;
+ while (bytesRead < size) {
+ int s = 17 + (rand.nextU() & 0xFFFF);
+ int ss = bstream.read(storage2, s);
+ REPORTER_ASSERT(reporter, ss > 0 && ss <= s);
+ REPORTER_ASSERT(reporter, bytesRead + ss <= size);
+ REPORTER_ASSERT(reporter, memcmp(storage + bytesRead, storage2, ss) == 0);
+ bytesRead += ss;
+ }
+ REPORTER_ASSERT(reporter, bytesRead == size);
+ }
+ }
+}
+
+static void TestRStream(skiatest::Reporter* reporter) {
+ static const char s[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
+ char copy[sizeof(s)];
+ SkRandom rand;
+
+ for (int i = 0; i < 65; i++)
+ {
+ char* copyPtr = copy;
+ SkMemoryStream mem(s, sizeof(s));
+ SkBufferStream buff(&mem, i);
+
+ do {
+ copyPtr += buff.read(copyPtr, rand.nextU() & 15);
+ } while (copyPtr < copy + sizeof(s));
+ REPORTER_ASSERT(reporter, copyPtr == copy + sizeof(s));
+ REPORTER_ASSERT(reporter, memcmp(s, copy, sizeof(s)) == 0);
+ }
+ test_buffer(reporter);
+}
+
+static void TestWStream(skiatest::Reporter* reporter)
+{
+ if (false) {
+ SkDebugWStream s;
+
+ s.writeText("compare: 0 "); s.writeDecAsText(0); s.newline();
+ s.writeText("compare: 591 "); s.writeDecAsText(591); s.newline();
+ s.writeText("compare: -9125 "); s.writeDecAsText(-9125); s.newline();
+ s.writeText("compare: 0 "); s.writeHexAsText(0, 0); s.newline();
+ s.writeText("compare: 03FA "); s.writeHexAsText(0x3FA, 4); s.newline();
+ s.writeText("compare: DEADBEEF "); s.writeHexAsText(0xDEADBEEF, 4); s.newline();
+ s.writeText("compare: 0 "); s.writeScalarAsText(SkIntToScalar(0)); s.newline();
+ s.writeText("compare: 27 "); s.writeScalarAsText(SkIntToScalar(27)); s.newline();
+ s.writeText("compare: -119 "); s.writeScalarAsText(SkIntToScalar(-119)); s.newline();
+ s.writeText("compare: 851.3333 "); s.writeScalarAsText(SkIntToScalar(851) + SK_Scalar1/3); s.newline();
+ s.writeText("compare: -0.08 "); s.writeScalarAsText(-SK_Scalar1*8/100); s.newline();
+ }
+
+ {
+ SkDynamicMemoryWStream ds;
+ const char s[] = "abcdefghijklmnopqrstuvwxyz";
+ int i;
+ for (i = 0; i < 100; i++) {
+ REPORTER_ASSERT(reporter, ds.write(s, 26));
+ }
+ REPORTER_ASSERT(reporter, ds.getOffset() == 100 * 26);
+ char* dst = new char[100 * 26 + 1];
+ dst[100*26] = '*';
+ ds.copyTo(dst);
+ REPORTER_ASSERT(reporter, dst[100*26] == '*');
+ // char* p = dst;
+ for (i = 0; i < 100; i++)
+ REPORTER_ASSERT(reporter, memcmp(&dst[i * 26], s, 26) == 0);
+ REPORTER_ASSERT(reporter, memcmp(dst, ds.getStream(), 100*26) == 0);
+ delete[] dst;
+ }
+}
+
+static void TestStreams(skiatest::Reporter* reporter) {
+ TestRStream(reporter);
+ TestWStream(reporter);
+}
+
+#include "TestClassDef.h"
+DEFINE_TESTCLASS("Stream", StreamTestClass, TestStreams)