diff -r c9b02747cfc5 -r cc204fc56c9c tests/test_streams.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test_streams.c	Sat Nov 02 13:48:53 2024 +0100
@@ -0,0 +1,105 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2023 Mike Becker, Olaf Wintermann All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright
+ *      notice, this list of conditions and the following disclaimer in the
+ *      documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "cx/test.h"
+
+#include "cx/streams.h"
+#include "cx/buffer.h"
+
+CX_TEST(test_stream_bncopy) {
+    CxBuffer source, target;
+    char sbuf[32], tbuf[32];
+    memset(tbuf, 0, 32);
+    cxBufferInit(&source, sbuf, 32, NULL, 0);
+    cxBufferInit(&target, tbuf, 32, NULL, 0);
+    cxBufferPutString(&source, "This is a stream copy test.");
+    cxBufferSeek(&source, 0, SEEK_SET);
+    char tmp[4];
+
+    CX_TEST_DO {
+        size_t result = cx_stream_bncopy(&source, &target,
+                                         (cx_read_func) cxBufferRead,
+                                         (cx_write_func) cxBufferWrite,
+                                         tmp, 4, 20);
+        CX_TEST_ASSERT(result == 20);
+        CX_TEST_ASSERT(target.size == 20);
+        CX_TEST_ASSERT(strcmp("This is a stream cop\0", tbuf) == 0);
+
+        result = cx_stream_bcopy(&source, &target,
+                                 (cx_read_func) cxBufferRead,
+                                 (cx_write_func) cxBufferWrite,
+                                 NULL, 16);
+
+        CX_TEST_ASSERT(result == 7);
+        CX_TEST_ASSERT(target.size == 27);
+        CX_TEST_ASSERT(strcmp("This is a stream copy test.\0", tbuf) == 0);
+    }
+
+    cxBufferDestroy(&source);
+    cxBufferDestroy(&target);
+}
+
+CX_TEST(test_stream_ncopy) {
+    CxBuffer source, target;
+    char sbuf[32], tbuf[32];
+    memset(tbuf, 0, 32);
+    cxBufferInit(&source, sbuf, 32, NULL, 0);
+    cxBufferInit(&target, tbuf, 32, NULL, 0);
+    cxBufferPutString(&source, "This is a stream copy test.");
+    cxBufferSeek(&source, 0, SEEK_SET);
+
+    CX_TEST_DO {
+        size_t result = cx_stream_ncopy(&source, &target,
+                                        (cx_read_func) cxBufferRead,
+                                        (cx_write_func) cxBufferWrite,
+                                        20);
+        CX_TEST_ASSERT(result == 20);
+        CX_TEST_ASSERT(target.size == 20);
+        CX_TEST_ASSERT(strcmp("This is a stream cop\0", tbuf) == 0);
+
+        result = cx_stream_copy(&source, &target,
+                                (cx_read_func) cxBufferRead,
+                                (cx_write_func) cxBufferWrite);
+
+        CX_TEST_ASSERT(result == 7);
+        CX_TEST_ASSERT(target.size == 27);
+        CX_TEST_ASSERT(strcmp("This is a stream copy test.\0", tbuf) == 0);
+    }
+
+    cxBufferDestroy(&source);
+    cxBufferDestroy(&target);
+}
+
+CxTestSuite *cx_test_suite_streams(void) {
+    CxTestSuite *suite = cx_test_suite_new("streams");
+
+    cx_test_register(suite, test_stream_bncopy);
+    cx_test_register(suite, test_stream_ncopy);
+
+    return suite;
+}