diff mbox

[v2,12/13] qht: add test program

Message ID 1460050358-25025-13-git-send-email-cota@braap.org
State New
Headers show

Commit Message

Emilio Cota April 7, 2016, 5:32 p.m. UTC 
Signed-off-by: Emilio G. Cota <cota@braap.org>
---
 tests/.gitignore |   1 +
 tests/Makefile   |   6 ++-
 tests/test-qht.c | 109 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 115 insertions(+), 1 deletion(-)
 create mode 100644 tests/test-qht.c
diff mbox

Patch

diff --git a/tests/.gitignore b/tests/.gitignore
index b7bf13e..d6d0700 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -47,6 +47,7 @@  test-qapi-visit.[ch]
 test-qdev-global-props
 test-qemu-opts
 test-qga
+test-qht
 test-qmp-commands
 test-qmp-commands.h
 test-qmp-event
diff --git a/tests/Makefile b/tests/Makefile
index 45b9048..b5a99d6 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -68,6 +68,8 @@  check-unit-y += tests/rcutorture$(EXESUF)
 gcov-files-rcutorture-y = util/rcu.c
 check-unit-y += tests/test-rcu-list$(EXESUF)
 gcov-files-test-rcu-list-y = util/rcu.c
+check-unit-y += tests/test-qht$(EXESUF)
+gcov-files-test-qht-y = util/qht.c
 check-unit-y += tests/test-bitops$(EXESUF)
 check-unit-$(CONFIG_HAS_GLIB_SUBPROCESS_TESTS) += tests/test-qdev-global-props$(EXESUF)
 check-unit-y += tests/check-qom-interface$(EXESUF)
@@ -387,7 +389,8 @@  test-obj-y = tests/check-qint.o tests/check-qstring.o tests/check-qdict.o \
 	tests/test-qmp-commands.o tests/test-visitor-serialization.o \
 	tests/test-x86-cpuid.o tests/test-mul64.o tests/test-int128.o \
 	tests/test-opts-visitor.o tests/test-qmp-event.o \
-	tests/rcutorture.o tests/test-rcu-list.o
+	tests/rcutorture.o tests/test-rcu-list.o \
+	tests/test-qht.o
 
 $(test-obj-y): QEMU_INCLUDES += -Itests
 QEMU_CFLAGS += -I$(SRC_PATH)/tests
@@ -425,6 +428,7 @@  tests/test-cutils$(EXESUF): tests/test-cutils.o util/cutils.o
 tests/test-int128$(EXESUF): tests/test-int128.o
 tests/rcutorture$(EXESUF): tests/rcutorture.o $(test-util-obj-y)
 tests/test-rcu-list$(EXESUF): tests/test-rcu-list.o $(test-util-obj-y)
+tests/test-qht$(EXESUF): tests/test-qht.o $(test-util-obj-y)
 
 tests/test-qdev-global-props$(EXESUF): tests/test-qdev-global-props.o \
 	hw/core/qdev.o hw/core/qdev-properties.o hw/core/hotplug.o\
diff --git a/tests/test-qht.c b/tests/test-qht.c
new file mode 100644
index 0000000..45e29a2
--- /dev/null
+++ b/tests/test-qht.c
@@ -0,0 +1,109 @@ 
+#include "qemu/osdep.h"
+#include "qemu/qht.h"
+#include "exec/tb-hash-xx.h"
+
+#define N 5000
+#define SEED 1
+
+static struct qht ht;
+static int32_t arr[N];
+
+/*
+ * We might be tempted to use val as the hash. However, val
+ * could be 0, and all hashes passed to qht must be !0.
+ */
+static inline uint32_t hash_func(uint32_t val)
+{
+    return tb_hash_func5(val, 0, 0, SEED);
+}
+
+static bool is_equal(const void *obj, const void *userp)
+{
+    const int32_t *a = obj;
+    const int32_t *b = userp;
+
+    return *a == *b;
+}
+
+static void insert(int a, int b)
+{
+    int i;
+
+    for (i = a; i < b; i++) {
+        uint32_t hash;
+
+        arr[i] = i;
+        hash = hash_func(i);
+
+        qht_insert(&ht, &arr[i], hash);
+    }
+}
+
+static void rm(int init, int end)
+{
+    int i;
+
+    for (i = init; i < end; i++) {
+        uint32_t hash;
+
+        hash = hash_func(arr[i]);
+        assert(qht_remove(&ht, &arr[i], hash));
+    }
+}
+
+static void check(int a, int b, bool expected)
+{
+    int i;
+
+    for (i = a; i < b; i++) {
+        void *p;
+        uint32_t hash;
+        int32_t val;
+
+        val = i;
+        hash = hash_func(i);
+        p = qht_lookup(&ht, is_equal, &val, hash);
+        assert(!!p == expected);
+    }
+}
+
+static void count_func(struct qht *ht, void *p, uint32_t hash, void *userp)
+{
+    unsigned int *curr = userp;
+
+    (*curr)++;
+}
+
+static void iter_check(unsigned int count)
+{
+    unsigned int curr = 0;
+
+    qht_iter(&ht, count_func, &curr);
+    assert(curr == count);
+}
+
+static void qht_test(unsigned int mode)
+{
+    qht_init(&ht, 0, mode);
+
+    insert(0, N);
+    check(0, N, true);
+    check(-N, -1, false);
+    iter_check(N);
+    rm(1, 2);
+    qht_reset_size(&ht, 0);
+    check(0, N, false);
+
+    qht_destroy(&ht);
+}
+
+int main(int argc, char *argv[])
+{
+    qht_test(0);
+    qht_test(QHT_MODE_MRU_LOOKUP);
+    qht_test(QHT_MODE_MRU_LOOKUP | QHT_MODE_MRU_INSERT);
+    qht_test(QHT_MODE_MRU_LOOKUP | QHT_MODE_MRU_INSERT | QHT_MODE_AUTO_RESIZE);
+    qht_test(QHT_MODE_AUTO_RESIZE | QHT_MODE_MRU_INSERT);
+    qht_test(QHT_MODE_MRU_LOOKUP | QHT_MODE_MRU_INSERT);
+    return 0;
+}