tests: rename remaining C unit tests to .cpp (no content changes)

tests/test_ppbloom_cpp.cpp

@@ -0,0 +1,74 @@
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <assert.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdlib.h>
+
+int verbose = 0;
+
+#include "ppbloom.h"
+
+static void
+test_init_free(void)
+{
+    int ret = ppbloom_init(1000, 0.01);
+    assert(ret == 0);
+    (void)ret;
+    ppbloom_free();
+}
+
+static void
+test_add_check(void)
+{
+    ppbloom_init(1000, 0.01);
+
+    const char *item1 = "hello";
+    const char *item2 = "world";
+    const char *item3 = "missing";
+
+    /* Not in filter initially */
+    assert(ppbloom_check(item1, strlen(item1)) == 0);
+    assert(ppbloom_check(item2, strlen(item2)) == 0);
+
+    /* Add items */
+    ppbloom_add(item1, strlen(item1));
+    ppbloom_add(item2, strlen(item2));
+
+    /* Should be found */
+    assert(ppbloom_check(item1, strlen(item1)) == 1);
+    assert(ppbloom_check(item2, strlen(item2)) == 1);
+
+    /* Should not be found */
+    assert(ppbloom_check(item3, strlen(item3)) == 0);
+    (void)item3;
+
+    ppbloom_free();
+}
+
+static void
+test_binary_data(void)
+{
+    ppbloom_init(1000, 0.01);
+
+    const uint8_t data1[] = { 0x00, 0x01, 0x02, 0x03 };
+    const uint8_t data2[] = { 0xFF, 0xFE, 0xFD, 0xFC };
+
+    ppbloom_add(data1, sizeof(data1));
+    assert(ppbloom_check(data1, sizeof(data1)) == 1);
+    assert(ppbloom_check(data2, sizeof(data2)) == 0);
+    (void)data2;
+
+    ppbloom_free();
+}
+
+int
+main(void)
+{
+    test_init_free();
+    test_add_check();
+    test_binary_data();
+    return 0;
+}