ST: Add utest to check coroutine for cygwin64. #20

Author: winlinvip

utest/st_utest.cpp

@@ -53,3 +53,77 @@ VOID TEST(SampleTest, FastSampleInt64Test)
     EXPECT_EQ(8, (int)sizeof(int64_t));
 }
 
+void* pfn_coroutine(void* /*arg*/)
+{
+    st_usleep(0);
+    return NULL;
+}
+
+VOID TEST(SampleTest, StartCoroutine)
+{
+    st_thread_t trd = st_thread_create(pfn_coroutine, NULL, 1, 0);
+    EXPECT_TRUE(trd != NULL);
+
+    // Wait for joinable coroutine to quit.
+    st_thread_join(trd, NULL);
+}
+
+VOID TEST(SampleTest, StartCoroutineX3)
+{
+    st_thread_t trd0 = st_thread_create(pfn_coroutine, NULL, 1, 0);
+    st_thread_t trd1 = st_thread_create(pfn_coroutine, NULL, 1, 0);
+    st_thread_t trd2 = st_thread_create(pfn_coroutine, NULL, 1, 0);
+    EXPECT_TRUE(trd0 != NULL && trd1 != NULL && trd2 != NULL);
+
+    // Wait for joinable coroutine to quit.
+    st_thread_join(trd1, NULL);
+    st_thread_join(trd2, NULL);
+    st_thread_join(trd0, NULL);
+}
+
+void* pfn_coroutine_add(void* arg)
+{
+    int v = 0;
+    int* pi = (int*)arg;
+
+    // Load the change of arg.
+    while (v != *pi) {
+        v = *pi;
+        st_usleep(0);
+    }
+
+    // Add with const.
+    v += 100;
+    *pi = v;
+
+    return NULL;
+}
+
+VOID TEST(SampleTest, StartCoroutineAdd)
+{
+    int v = 0;
+    st_thread_t trd = st_thread_create(pfn_coroutine_add, &v, 1, 0);
+    EXPECT_TRUE(trd != NULL);
+
+    // Wait for joinable coroutine to quit.
+    st_thread_join(trd, NULL);
+
+    EXPECT_EQ(100, v);
+}
+
+VOID TEST(SampleTest, StartCoroutineAddX3)
+{
+    int v = 0;
+    st_thread_t trd0 = st_thread_create(pfn_coroutine_add, &v, 1, 0);
+    st_thread_t trd1 = st_thread_create(pfn_coroutine_add, &v, 1, 0);
+    st_thread_t trd2 = st_thread_create(pfn_coroutine_add, &v, 1, 0);
+    EXPECT_TRUE(trd0 != NULL && trd1 != NULL && trd2 != NULL);
+
+    // Wait for joinable coroutine to quit.
+    st_thread_join(trd0, NULL);
+    st_thread_join(trd1, NULL);
+    st_thread_join(trd2, NULL);
+
+    EXPECT_EQ(300, v);
+}
+