migrate printf tests - relates to #342

Fri, 29 Dec 2023 17:27:14 +0100

author
Mike Becker <universe@uap-core.de>
date
Fri, 29 Dec 2023 17:27:14 +0100
changeset 780
9965df621652
parent 779
e9611e4d0213
child 781
a786b0a89b37

migrate printf tests - relates to #342

tests/Makefile file | annotate | diff | comparison | revisions
tests/test_printf.c file | annotate | diff | comparison | revisions
tests/test_printf.cpp file | annotate | diff | comparison | revisions
tests/ucxtest.c file | annotate | diff | comparison | revisions
--- a/tests/Makefile	Fri Dec 29 17:17:43 2023 +0100
+++ b/tests/Makefile	Fri Dec 29 17:27:14 2023 +0100
@@ -27,7 +27,8 @@
 
 TEST_DIR=$(build_dir)/tests
 
-SRC = util_allocator.c test_utils.c test_hash_key.c test_string.c ucxtest.c
+SRC = util_allocator.c test_utils.c test_hash_key.c test_string.c \
+	test_printf.c ucxtest.c
 
 OBJ_EXT=.o
 OBJ=$(SRC:%.c=$(TEST_DIR)/%$(OBJ_EXT))
@@ -59,6 +60,13 @@
 	@echo "Compiling $<"
 	$(CC) -o $@ $(CFLAGS) -c $<
 
+$(TEST_DIR)/test_printf$(OBJ_EXT): test_printf.c ../src/cx/test.h \
+ util_allocator.h ../src/cx/allocator.h ../src/cx/common.h \
+ ../src/cx/printf.h ../src/cx/string.h ../src/cx/allocator.h \
+ ../src/cx/buffer.h
+	@echo "Compiling $<"
+	$(CC) -o $@ $(CFLAGS) -c $<
+
 $(TEST_DIR)/test_string$(OBJ_EXT): test_string.c ../src/cx/test.h \
  util_allocator.h ../src/cx/allocator.h ../src/cx/common.h \
  ../src/cx/string.h ../src/cx/allocator.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test_printf.c	Fri Dec 29 17:27:14 2023 +0100
@@ -0,0 +1,305 @@
+/*
+ * 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 "util_allocator.h"
+
+#include "cx/printf.h"
+#include "cx/buffer.h"
+
+#define ASSERT_ZERO_TERMINATED(str) CX_TEST_ASSERTM((str).ptr[(str).length] == '\0', \
+    #str " is not zero terminated")
+
+static size_t test_printf_write_func(
+        void const *src,
+        size_t esize,
+        size_t ecount,
+        void *target
+) {
+    memcpy(target, src, esize * ecount);
+    return esize * ecount;
+}
+
+CX_TEST(test_bprintf) {
+    CxTestingAllocator talloc;
+    cx_testing_allocator_init(&talloc);
+    CxAllocator *alloc = &talloc.base;
+    CX_TEST_DO {
+        CxBuffer buf;
+        cxBufferInit(&buf, NULL, 64, alloc, 0);
+        size_t r = cx_bprintf(&buf, "This %s aged %u years in a %2XSK.", "Test", 10, 0xca);
+        CX_TEST_ASSERT(r == 34);
+        CX_TEST_ASSERT(buf.size == 34);
+        buf.space[r] = '\0';
+        CX_TEST_ASSERT(0 == strcmp(buf.space, "This Test aged 10 years in a CASK."));
+        cxBufferDestroy(&buf);
+        CX_TEST_ASSERT(cx_testing_allocator_verify(&talloc));
+    }
+    cx_testing_allocator_destroy(&talloc);
+}
+
+CX_TEST(test_bprintf_large_string) {
+    CxTestingAllocator talloc;
+    cx_testing_allocator_init(&talloc);
+    CxAllocator *alloc = &talloc.base;
+    char *aaa = malloc(512);
+    char *bbb = malloc(512);
+    char *expected = malloc(1040);
+    memset(aaa, 'a', 511);
+    aaa[511] = 0;
+    memset(bbb, 'b', 511);
+    bbb[511] = 0;
+    sprintf(expected, "After %s comes %s.", aaa, bbb);
+    CX_TEST_DO {
+        CxBuffer buf;
+        cxBufferInit(&buf, NULL, 64, alloc, CX_BUFFER_AUTO_EXTEND);
+        size_t r = cx_bprintf(&buf, "After %s comes %s.", aaa, bbb);
+        CX_TEST_ASSERT(r == 1036);
+        CX_TEST_ASSERT(buf.size == 1036);
+        cxBufferPut(&buf, 0);
+        CX_TEST_ASSERT(0 == strcmp(expected, buf.space));
+        cxBufferDestroy(&buf);
+        CX_TEST_ASSERT(cx_testing_allocator_verify(&talloc));
+    }
+    free(aaa);
+    free(bbb);
+    free(expected);
+    cx_testing_allocator_destroy(&talloc);
+}
+
+CX_TEST(test_bprintf_nocap) {
+    CxTestingAllocator talloc;
+    cx_testing_allocator_init(&talloc);
+    CxAllocator *alloc = &talloc.base;
+    char space[20];
+    memset(space, 'a', 20);
+    CX_TEST_DO {
+        CxBuffer buf;
+        cxBufferInit(&buf, space, 16, alloc, 0);
+        size_t r = cx_bprintf(&buf, "Hello %s with more than %d chars.", "string", 16);
+        CX_TEST_ASSERT(r == 16);
+        CX_TEST_ASSERT(buf.size == 16);
+        CX_TEST_ASSERT(0 == memcmp(space, "Hello string witaaaa", 20));
+        cxBufferDestroy(&buf);
+        CX_TEST_ASSERT(cx_testing_allocator_verify(&talloc));
+    }
+    cx_testing_allocator_destroy(&talloc);
+}
+
+CX_TEST(test_fprintf) {
+    char const *h = "Hello";
+    char buf[32];
+    size_t r;
+    CX_TEST_DO {
+        r = cx_fprintf(buf, test_printf_write_func, "teststring");
+        CX_TEST_ASSERT(r == 10);
+        CX_TEST_ASSERT(0 == memcmp(buf, "teststring", r));
+
+        r = cx_fprintf(buf, test_printf_write_func, "[%10s]", h);
+        CX_TEST_ASSERT(r == 12);
+        CX_TEST_ASSERT(0 == memcmp(buf, "[     Hello]", r));
+
+        r = cx_fprintf(buf, test_printf_write_func, "[%-10s]", h);
+        CX_TEST_ASSERT(r == 12);
+        CX_TEST_ASSERT(0 == memcmp(buf, "[Hello     ]", r));
+
+        r = cx_fprintf(buf, test_printf_write_func, "[%*s]", 10, h);
+        CX_TEST_ASSERT(r == 12);
+        CX_TEST_ASSERT(0 == memcmp(buf, "[     Hello]", r));
+
+        r = cx_fprintf(buf, test_printf_write_func, "[%-10.*s]", 4, h);
+        CX_TEST_ASSERT(r == 12);
+        CX_TEST_ASSERT(0 == memcmp(buf, "[Hell      ]", r));
+
+        r = cx_fprintf(buf, test_printf_write_func, "[%-*.*s]", 10, 4, h);
+        CX_TEST_ASSERT(r == 12);
+        CX_TEST_ASSERT(0 == memcmp(buf, "[Hell      ]", r));
+
+        r = cx_fprintf(buf, test_printf_write_func, "%c", 'A');
+        CX_TEST_ASSERT(r == 1);
+        CX_TEST_ASSERT(0 == memcmp(buf, "A", r));
+
+        r = cx_fprintf(buf, test_printf_write_func, "%i %d %.6i %i %.0i %+i %i", 1, 2, 3, 0, 0, 4, -4);
+        CX_TEST_ASSERT(r == 19);
+        CX_TEST_ASSERT(0 == memcmp(buf, "1 2 000003 0  +4 -4", r));
+
+        r = cx_fprintf(buf, test_printf_write_func, "%x %x %X %#x", 5, 10, 10, 6);
+        CX_TEST_ASSERT(r == 9);
+        CX_TEST_ASSERT(0 == memcmp(buf, "5 a A 0x6", r));
+
+        r = cx_fprintf(buf, test_printf_write_func, "%o %#o %#o", 10, 10, 4);
+        CX_TEST_ASSERT(r == 9);
+        CX_TEST_ASSERT(0 == memcmp(buf, "12 012 04", r));
+
+        r = cx_fprintf(buf, test_printf_write_func, "%05.2f %.2f %5.2f", 1.5, 1.5, 1.5);
+        CX_TEST_ASSERT(r == 16);
+        CX_TEST_ASSERT(0 == memcmp(buf, "01.50 1.50  1.50", r));
+
+        r = cx_fprintf(buf, test_printf_write_func, "'%*c'", 5, 'x');
+        CX_TEST_ASSERT(r == 7);
+        CX_TEST_ASSERT(0 == memcmp(buf, "'    x'", r));
+
+        r = cx_fprintf(buf, test_printf_write_func, "'%*c'", -5, 'x');
+        CX_TEST_ASSERT(r == 7);
+        CX_TEST_ASSERT(0 == memcmp(buf, "'x    '", r));
+    }
+}
+
+CX_TEST(test_asprintf) {
+    CxTestingAllocator talloc;
+    cx_testing_allocator_init(&talloc);
+    CxAllocator *alloc = &talloc.base;
+
+    char const *h = "Hello";
+
+    int const specimen_count = 13;
+    cxmutstr r[specimen_count];
+    int specimen = 0;
+
+    CX_TEST_DO {
+        r[specimen] = cx_asprintf_a(alloc, "teststring");
+        CX_TEST_ASSERT(r[specimen].length == 10);
+        ASSERT_ZERO_TERMINATED(r[specimen]);
+        CX_TEST_ASSERT(0 == strcmp(r[specimen].ptr, "teststring"));
+        specimen++;
+
+        r[specimen] = cx_asprintf_a(alloc, "[%10s]", h);
+        CX_TEST_ASSERT(r[specimen].length == 12);
+        ASSERT_ZERO_TERMINATED(r[specimen]);
+        CX_TEST_ASSERT(0 == strcmp(r[specimen].ptr, "[     Hello]"));
+        specimen++;
+
+        r[specimen] = cx_asprintf_a(alloc, "[%-10s]", h);
+        CX_TEST_ASSERT(r[specimen].length == 12);
+        ASSERT_ZERO_TERMINATED(r[specimen]);
+        CX_TEST_ASSERT(0 == strcmp(r[specimen].ptr, "[Hello     ]"));
+        specimen++;
+
+        r[specimen] = cx_asprintf_a(alloc, "[%*s]", 10, h);
+        CX_TEST_ASSERT(r[specimen].length == 12);
+        ASSERT_ZERO_TERMINATED(r[specimen]);
+        CX_TEST_ASSERT(0 == strcmp(r[specimen].ptr, "[     Hello]"));
+        specimen++;
+
+        r[specimen] = cx_asprintf_a(alloc, "[%-10.*s]", 4, h);
+        CX_TEST_ASSERT(r[specimen].length == 12);
+        ASSERT_ZERO_TERMINATED(r[specimen]);
+        CX_TEST_ASSERT(0 == strcmp(r[specimen].ptr, "[Hell      ]"));
+        specimen++;
+
+        r[specimen] = cx_asprintf_a(alloc, "[%-*.*s]", 10, 4, h);
+        CX_TEST_ASSERT(r[specimen].length == 12);
+        ASSERT_ZERO_TERMINATED(r[specimen]);
+        CX_TEST_ASSERT(0 == strcmp(r[specimen].ptr, "[Hell      ]"));
+        specimen++;
+
+        r[specimen] = cx_asprintf_a(alloc, "%c", 'A');
+        CX_TEST_ASSERT(r[specimen].length == 1);
+        ASSERT_ZERO_TERMINATED(r[specimen]);
+        CX_TEST_ASSERT(0 == strcmp(r[specimen].ptr, "A"));
+        specimen++;
+
+        r[specimen] = cx_asprintf_a(alloc, "%i %d %.6i %i %.0i %+i %i", 1, 2, 3, 0, 0, 4, -4);
+        CX_TEST_ASSERT(r[specimen].length == 19);
+        ASSERT_ZERO_TERMINATED(r[specimen]);
+        CX_TEST_ASSERT(0 == strcmp(r[specimen].ptr, "1 2 000003 0  +4 -4"));
+        specimen++;
+
+        r[specimen] = cx_asprintf_a(alloc, "%x %x %X %#x", 5, 10, 10, 6);
+        CX_TEST_ASSERT(r[specimen].length == 9);
+        ASSERT_ZERO_TERMINATED(r[specimen]);
+        CX_TEST_ASSERT(0 == strcmp(r[specimen].ptr, "5 a A 0x6"));
+        specimen++;
+
+        r[specimen] = cx_asprintf_a(alloc, "%o %#o %#o", 10, 10, 4);
+        CX_TEST_ASSERT(r[specimen].length == 9);
+        ASSERT_ZERO_TERMINATED(r[specimen]);
+        CX_TEST_ASSERT(0 == strcmp(r[specimen].ptr, "12 012 04"));
+        specimen++;
+
+        r[specimen] = cx_asprintf_a(alloc, "%05.2f %.2f %5.2f", 1.5, 1.5, 1.5);
+        CX_TEST_ASSERT(r[specimen].length == 16);
+        ASSERT_ZERO_TERMINATED(r[specimen]);
+        CX_TEST_ASSERT(0 == strcmp(r[specimen].ptr, "01.50 1.50  1.50"));
+        specimen++;
+
+        r[specimen] = cx_asprintf_a(alloc, "'%*c'", 5, 'x');
+        CX_TEST_ASSERT(r[specimen].length == 7);
+        ASSERT_ZERO_TERMINATED(r[specimen]);
+        CX_TEST_ASSERT(0 == strcmp(r[specimen].ptr, "'    x'"));
+        specimen++;
+
+        r[specimen] = cx_asprintf_a(alloc, "'%*c'", -5, 'x');
+        CX_TEST_ASSERT(r[specimen].length == 7);
+        ASSERT_ZERO_TERMINATED(r[specimen]);
+        CX_TEST_ASSERT(0 == strcmp(r[specimen].ptr, "'x    '"));
+        specimen++;
+
+        CX_TEST_ASSERT(specimen == specimen_count); // self-test
+
+        for (int i = 0; i < specimen_count; i++) {
+            cx_strfree_a(alloc, &r[i]);
+        }
+        CX_TEST_ASSERT(cx_testing_allocator_verify(&talloc));
+    }
+    cx_testing_allocator_destroy(&talloc);
+}
+
+CX_TEST(test_asprintf_large_string) {
+    char *aaa = malloc(512);
+    char *bbb = malloc(512);
+    char *expected = malloc(1040);
+    memset(aaa, 'a', 511);
+    aaa[511] = 0;
+    memset(bbb, 'b', 511);
+    bbb[511] = 0;
+    sprintf(expected, "After %s comes %s.", aaa, bbb);
+    CX_TEST_DO {
+        cxmutstr r = cx_asprintf("After %s comes %s.", aaa, bbb);
+        CX_TEST_ASSERT(r.length == 1036);
+        ASSERT_ZERO_TERMINATED(r);
+        CX_TEST_ASSERT(0 == strcmp(r.ptr, expected));
+        cx_strfree(&r);
+    }
+    free(aaa);
+    free(bbb);
+    free(expected);
+}
+
+CxTestSuite *cx_test_suite_printf(void) {
+    CxTestSuite *suite = cx_test_suite_new("printf");
+
+    cx_test_register(suite, test_bprintf);
+    cx_test_register(suite, test_bprintf_large_string);
+    cx_test_register(suite, test_bprintf_nocap);
+    cx_test_register(suite, test_fprintf);
+    cx_test_register(suite, test_asprintf);
+    cx_test_register(suite, test_asprintf_large_string);
+
+    return suite;
+}
--- a/tests/test_printf.cpp	Fri Dec 29 17:17:43 2023 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,248 +0,0 @@
-/*
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
- *
- * Copyright 2021 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/printf.h"
-#include "cx/buffer.h"
-
-#include <gtest/gtest.h>
-#include "util_allocator.h"
-
-class PrintfFixture : public ::testing::Test {
-protected:
-    std::string buf;
-    CxTestingAllocator alloc;
-
-    void TearDown() override {
-        buf.clear();
-        ASSERT_TRUE(alloc.verify());
-    }
-
-    static size_t write_func(
-            void const *src,
-            size_t esize,
-            size_t ecount,
-            void *target
-    ) {
-        auto str = reinterpret_cast<char const *>(src);
-        auto buf = reinterpret_cast<std::string *>(target);
-        EXPECT_EQ(esize, 1);
-        EXPECT_EQ(strlen(str), ecount);
-        *buf = str;
-        return ecount;
-    }
-};
-
-
-TEST_F(PrintfFixture, BPrintf) {
-    CxBuffer buf;
-    cxBufferInit(&buf, nullptr, 64, &alloc, 0);
-
-    auto r = cx_bprintf(&buf, "This %s aged %u years in a %2XSK.", "Test", 10, 0xca);
-    EXPECT_EQ(r, 34);
-    EXPECT_EQ(buf.size, 34);
-    buf.space[r] = '\0';
-    EXPECT_STREQ(buf.space, "This Test aged 10 years in a CASK.");
-
-    cxBufferDestroy(&buf);
-}
-
-TEST_F(PrintfFixture, FPrintf) {
-    auto h = "Hello";
-    size_t r;
-
-    r = cx_fprintf(&buf, PrintfFixture::write_func, "teststring");
-    EXPECT_EQ(r, 10);
-    EXPECT_EQ(buf, "teststring");
-
-    r = cx_fprintf(&buf, PrintfFixture::write_func, "[%10s]", h);
-    EXPECT_EQ(r, 12);
-    EXPECT_EQ(buf, "[     Hello]");
-
-    r = cx_fprintf(&buf, PrintfFixture::write_func, "[%-10s]", h);
-    EXPECT_EQ(r, 12);
-    EXPECT_EQ(buf, "[Hello     ]");
-
-    r = cx_fprintf(&buf, PrintfFixture::write_func, "[%*s]", 10, h);
-    EXPECT_EQ(r, 12);
-    EXPECT_EQ(buf, "[     Hello]");
-
-    r = cx_fprintf(&buf, PrintfFixture::write_func, "[%-10.*s]", 4, h);
-    EXPECT_EQ(r, 12);
-    EXPECT_EQ(buf, "[Hell      ]");
-
-    r = cx_fprintf(&buf, PrintfFixture::write_func, "[%-*.*s]", 10, 4, h);
-    EXPECT_EQ(r, 12);
-    EXPECT_EQ(buf, "[Hell      ]");
-
-    r = cx_fprintf(&buf, PrintfFixture::write_func, "%c", 'A');
-    EXPECT_EQ(r, 1);
-    EXPECT_EQ(buf, "A");
-
-    r = cx_fprintf(&buf, PrintfFixture::write_func, "%i %d %.6i %i %.0i %+i %i", 1, 2, 3, 0, 0, 4, -4);
-    EXPECT_EQ(r, 19);
-    EXPECT_EQ(buf, "1 2 000003 0  +4 -4");
-
-    r = cx_fprintf(&buf, PrintfFixture::write_func, "%x %x %X %#x", 5, 10, 10, 6);
-    EXPECT_EQ(r, 9);
-    EXPECT_EQ(buf, "5 a A 0x6");
-
-    r = cx_fprintf(&buf, PrintfFixture::write_func, "%o %#o %#o", 10, 10, 4);
-    EXPECT_EQ(r, 9);
-    EXPECT_EQ(buf, "12 012 04");
-
-    r = cx_fprintf(&buf, PrintfFixture::write_func, "%05.2f %.2f %5.2f", 1.5, 1.5, 1.5);
-    EXPECT_EQ(r, 16);
-    EXPECT_EQ(buf, "01.50 1.50  1.50");
-
-    r = cx_fprintf(&buf, PrintfFixture::write_func, "'%*c'", 5, 'x');
-    EXPECT_EQ(r, 7);
-    EXPECT_EQ(buf, "'    x'");
-
-    r = cx_fprintf(&buf, PrintfFixture::write_func, "'%*c'", -5, 'x');
-    EXPECT_EQ(r, 7);
-    EXPECT_EQ(buf, "'x    '");
-}
-
-TEST_F(PrintfFixture, BPrintfLargeString) {
-    CxBuffer buf;
-    cxBufferInit(&buf, nullptr, 64, &alloc, CX_BUFFER_AUTO_EXTEND);
-
-    auto aaa = std::string(512, 'a');
-    auto bbb = std::string(512, 'b');
-
-    auto r = cx_bprintf(&buf, "After %s comes %s.", aaa.data(), bbb.data());
-    EXPECT_EQ(r, 1038);
-    EXPECT_EQ(buf.size, 1038);
-    cxBufferPut(&buf, 0);
-    EXPECT_EQ(buf.space, std::string("After ") + aaa + " comes " + bbb + ".");
-
-    cxBufferDestroy(&buf);
-}
-
-TEST_F(PrintfFixture, BPrintfNoCap) {
-    CxBuffer buf;
-    char space[20];
-    memset(space, 'a', 20);
-    cxBufferInit(&buf, space, 16, &alloc, 0);
-
-    auto r = cx_bprintf(&buf, "Hello %s with more than %d chars.", "string", 16);
-    EXPECT_EQ(r, 16);
-    EXPECT_EQ(buf.size, 16);
-    EXPECT_EQ(0, memcmp(space, "Hello string witaaaa", 20));
-
-    cxBufferDestroy(&buf);
-}
-
-TEST_F(PrintfFixture, SPrintf) {
-    auto h = "Hello";
-
-    std::vector<char *> fl;
-    cxmutstr r;
-
-    r = cx_asprintf_a(&alloc, "teststring");
-    EXPECT_EQ(r.length, 10);
-    EXPECT_STREQ(r.ptr, "teststring");
-    fl.push_back(r.ptr);
-
-    r = cx_asprintf_a(&alloc, "[%10s]", h);
-    EXPECT_EQ(r.length, 12);
-    EXPECT_STREQ(r.ptr, "[     Hello]");
-    fl.push_back(r.ptr);
-
-    r = cx_asprintf_a(&alloc, "[%-10s]", h);
-    EXPECT_EQ(r.length, 12);
-    EXPECT_STREQ(r.ptr, "[Hello     ]");
-    fl.push_back(r.ptr);
-
-    r = cx_asprintf_a(&alloc, "[%*s]", 10, h);
-    EXPECT_EQ(r.length, 12);
-    EXPECT_STREQ(r.ptr, "[     Hello]");
-    fl.push_back(r.ptr);
-
-    r = cx_asprintf_a(&alloc, "[%-10.*s]", 4, h);
-    EXPECT_EQ(r.length, 12);
-    EXPECT_STREQ(r.ptr, "[Hell      ]");
-    fl.push_back(r.ptr);
-
-    r = cx_asprintf_a(&alloc, "[%-*.*s]", 10, 4, h);
-    EXPECT_EQ(r.length, 12);
-    EXPECT_STREQ(r.ptr, "[Hell      ]");
-    fl.push_back(r.ptr);
-
-    r = cx_asprintf_a(&alloc, "%c", 'A');
-    EXPECT_EQ(r.length, 1);
-    EXPECT_STREQ(r.ptr, "A");
-    fl.push_back(r.ptr);
-
-    r = cx_asprintf_a(&alloc, "%i %d %.6i %i %.0i %+i %i", 1, 2, 3, 0, 0, 4, -4);
-    EXPECT_EQ(r.length, 19);
-    EXPECT_STREQ(r.ptr, "1 2 000003 0  +4 -4");
-    fl.push_back(r.ptr);
-
-    r = cx_asprintf_a(&alloc, "%x %x %X %#x", 5, 10, 10, 6);
-    EXPECT_EQ(r.length, 9);
-    EXPECT_STREQ(r.ptr, "5 a A 0x6");
-    fl.push_back(r.ptr);
-
-    r = cx_asprintf_a(&alloc, "%o %#o %#o", 10, 10, 4);
-    EXPECT_EQ(r.length, 9);
-    EXPECT_STREQ(r.ptr, "12 012 04");
-    fl.push_back(r.ptr);
-
-    r = cx_asprintf_a(&alloc, "%05.2f %.2f %5.2f", 1.5, 1.5, 1.5);
-    EXPECT_EQ(r.length, 16);
-    EXPECT_STREQ(r.ptr, "01.50 1.50  1.50");
-    fl.push_back(r.ptr);
-
-    r = cx_asprintf_a(&alloc, "'%*c'", 5, 'x');
-    EXPECT_EQ(r.length, 7);
-    EXPECT_STREQ(r.ptr, "'    x'");
-    fl.push_back(r.ptr);
-
-    r = cx_asprintf_a(&alloc, "'%*c'", -5, 'x');
-    EXPECT_EQ(r.length, 7);
-    EXPECT_STREQ(r.ptr, "'x    '");
-    fl.push_back(r.ptr);
-
-    for (auto c: fl) {
-        auto s = cx_mutstrn(c, 0);
-        cx_strfree_a(&alloc, &s);
-    }
-}
-
-TEST_F(PrintfFixture, SPrintfLargeString) {
-    auto aaa = std::string(512, 'a');
-    auto bbb = std::string(512, 'b');
-
-    auto r = cx_asprintf_a(&alloc, "After %s comes %s.", aaa.data(), bbb.data());
-    EXPECT_EQ(r.length, 1038);
-    EXPECT_EQ(r.ptr, std::string("After ") + aaa + " comes " + bbb + ".");
-    EXPECT_EQ(r.ptr[1038], '\0');
-
-    cx_strfree_a(&alloc, &r);
-}
\ No newline at end of file
--- a/tests/ucxtest.c	Fri Dec 29 17:17:43 2023 +0100
+++ b/tests/ucxtest.c	Fri Dec 29 17:27:14 2023 +0100
@@ -31,8 +31,9 @@
 CxTestSuite *cx_test_suite_testing_allocator(void);
 CxTestSuite *cx_test_suite_utils(void);
 CxTestSuite *cx_test_suite_hash_key(void);
+CxTestSuite *cx_test_suite_string(void);
 
-CxTestSuite *cx_test_suite_string(void);
+CxTestSuite *cx_test_suite_printf(void);
 
 #define run_tests(suite) cx_test_run_stdout(suite); success += (suite)->success; failure += (suite)->failure
 #define execute_test_suites(...) unsigned success = 0, failure = 0; CxTestSuite* test_suites[] = {__VA_ARGS__}; \
@@ -46,7 +47,8 @@
             cx_test_suite_testing_allocator(),
             cx_test_suite_utils(),
             cx_test_suite_hash_key(),
-            cx_test_suite_string()
+            cx_test_suite_string(),
+            cx_test_suite_printf()
     );
     printf("=== OVERALL RESULT ===\n");
     printf("  Total:   %u\n  Success: %u\n  Failure: %u\n",

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