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

1 files changed, 111 insertions, 0 deletions

diff --git a/tests/StreamTest.cpp b/tests/StreamTest.cpp
new file mode 100644
index 0000000000..704ab4a6a1
--- /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)