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[Qemu-devel] [PATCH 11/11] Add a unit test for JSON support


From: Anthony Liguori
Subject: [Qemu-devel] [PATCH 11/11] Add a unit test for JSON support
Date: Wed, 11 Nov 2009 11:29:03 -0600

Signed-off-by: Anthony Liguori <address@hidden>
---
 Makefile      |    1 +
 check-qjson.c |  608 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 configure     |    2 +-
 3 files changed, 610 insertions(+), 1 deletions(-)
 create mode 100644 check-qjson.c

diff --git a/Makefile b/Makefile
index 3818c51..4b678e6 100644
--- a/Makefile
+++ b/Makefile
@@ -229,6 +229,7 @@ check-qstring: check-qstring.o qstring.o qemu-malloc.o
 check-qdict: check-qdict.o qdict.o qint.o qstring.o qemu-malloc.o
 check-qlist: check-qlist.o qlist.o qint.o qemu-malloc.o
 check-qfloat: check-qfloat.o qfloat.o qemu-malloc.o
+check-qjson: check-qjson.o qfloat.o qint.o qdict.o qstring.o qlist.o qbool.o 
qjson.o json-streamer.o json-lexer.o json-parser.o qemu-malloc.o
 
 clean:
 # avoid old build problems by removing potentially incorrect old files
diff --git a/check-qjson.c b/check-qjson.c
new file mode 100644
index 0000000..f763de6
--- /dev/null
+++ b/check-qjson.c
@@ -0,0 +1,608 @@
+/*
+ * Copyright IBM, Corp. 2009
+ *
+ * Authors:
+ *  Anthony Liguori   <address@hidden>
+ *
+ * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
+ * See the COPYING.LIB file in the top-level directory.
+ *
+ */
+#include <check.h>
+#include <stdbool.h>
+
+#include "qstring.h"
+#include "qint.h"
+#include "qdict.h"
+#include "qlist.h"
+#include "qfloat.h"
+#include "qbool.h"
+#include "qjson.h"
+
+#include "qemu-common.h"
+
+START_TEST(escaped_string)
+{
+    int i;
+    struct {
+        const char *encoded;
+        const char *decoded;
+    } test_cases[] = {
+        { "\"\\\"\"", "\"" },
+        { "\"hello world \\\"embedded string\\\"\"",
+          "hello world \"embedded string\"" },
+        { "\"hello world\\nwith new line\"", "hello world\nwith new line" },
+        { "\"single byte utf-8 \\u0020\"", "single byte utf-8  " },
+        { "\"double byte utf-8 \\u00A2\"", "double byte utf-8 \xc2\xa2" },
+        { "\"triple byte utf-8 \\u20AC\"", "triple byte utf-8 \xe2\x82\xac" },
+        {}
+    };
+
+    for (i = 0; test_cases[i].encoded; i++) {
+        QObject *obj;
+        QString *str;
+
+        obj = qobject_from_json(test_cases[i].encoded);
+
+        fail_unless(obj != NULL);
+        fail_unless(qobject_type(obj) == QTYPE_QSTRING);
+        
+        str = qobject_to_qstring(obj);
+        fail_unless(strcmp(qstring_get_str(str), test_cases[i].decoded) == 0);
+
+        QDECREF(str);
+    }
+}
+END_TEST
+
+START_TEST(simple_string)
+{
+    int i;
+    struct {
+        const char *encoded;
+        const char *decoded;
+    } test_cases[] = {
+        { "\"hello world\"", "hello world" },
+        { "\"the quick brown fox jumped over the fence\"",
+          "the quick brown fox jumped over the fence" },
+        {}
+    };
+
+    for (i = 0; test_cases[i].encoded; i++) {
+        QObject *obj;
+        QString *str;
+
+        obj = qobject_from_json(test_cases[i].encoded);
+
+        fail_unless(obj != NULL);
+        fail_unless(qobject_type(obj) == QTYPE_QSTRING);
+        
+        str = qobject_to_qstring(obj);
+        fail_unless(strcmp(qstring_get_str(str), test_cases[i].decoded) == 0);
+
+        QDECREF(str);
+    }
+}
+END_TEST
+
+START_TEST(single_quote_string)
+{
+    int i;
+    struct {
+        const char *encoded;
+        const char *decoded;
+    } test_cases[] = {
+        { "'hello world'", "hello world" },
+        { "'the quick brown fox \\' jumped over the fence'",
+          "the quick brown fox ' jumped over the fence" },
+        {}
+    };
+
+    for (i = 0; test_cases[i].encoded; i++) {
+        QObject *obj;
+        QString *str;
+
+        obj = qobject_from_json(test_cases[i].encoded);
+
+        fail_unless(obj != NULL);
+        fail_unless(qobject_type(obj) == QTYPE_QSTRING);
+        
+        str = qobject_to_qstring(obj);
+        fail_unless(strcmp(qstring_get_str(str), test_cases[i].decoded) == 0);
+
+        QDECREF(str);
+    }
+}
+END_TEST
+
+START_TEST(vararg_string)
+{
+    int i;
+    struct {
+        const char *decoded;
+    } test_cases[] = {
+        { "hello world" },
+        { "the quick brown fox jumped over the fence" },
+        {}
+    };
+
+    for (i = 0; test_cases[i].decoded; i++) {
+        QObject *obj;
+        QString *str;
+
+        obj = qobject_from_jsonf("%s", test_cases[i].decoded);
+
+        fail_unless(obj != NULL);
+        fail_unless(qobject_type(obj) == QTYPE_QSTRING);
+        
+        str = qobject_to_qstring(obj);
+        fail_unless(strcmp(qstring_get_str(str), test_cases[i].decoded) == 0);
+
+        QDECREF(str);
+    }
+}
+END_TEST
+
+START_TEST(simple_number)
+{
+    int i;
+    struct {
+        const char *encoded;
+        int64_t decoded;
+    } test_cases[] = {
+        { "0", 0 },
+        { "1234", 1234 },
+        { "1", 1 },
+        { "-32", -32 },
+        { "-0", 0 },
+        { },
+    };
+
+    for (i = 0; test_cases[i].encoded; i++) {
+        QObject *obj;
+        QInt *qint;
+
+        obj = qobject_from_json(test_cases[i].encoded);
+        fail_unless(obj != NULL);
+        fail_unless(qobject_type(obj) == QTYPE_QINT);
+
+        qint = qobject_to_qint(obj);
+        fail_unless(qint_get_int(qint) == test_cases[i].decoded);
+
+        QDECREF(qint);
+    }
+}
+END_TEST
+
+START_TEST(float_number)
+{
+    int i;
+    struct {
+        const char *encoded;
+        double decoded;
+    } test_cases[] = {
+        { "32.43", 32.43 },
+        { "0.222", 0.222 },
+        { "-32.12313", -32.12313 },
+        { "-32.20e-10", -32.20e-10 },
+        { },
+    };
+
+    for (i = 0; test_cases[i].encoded; i++) {
+        QObject *obj;
+        QFloat *qfloat;
+
+        obj = qobject_from_json(test_cases[i].encoded);
+        fail_unless(obj != NULL);
+        fail_unless(qobject_type(obj) == QTYPE_QFLOAT);
+
+        qfloat = qobject_to_qfloat(obj);
+        fail_unless(qfloat_get_double(qfloat) == test_cases[i].decoded);
+
+        QDECREF(qfloat);
+    }
+}
+END_TEST
+
+START_TEST(vararg_number)
+{
+    QObject *obj;
+    QInt *qint;
+    QFloat *qfloat;
+    int value = 0x2342;
+    int64_t value64 = 0x2342342343LL;
+    double valuef = 2.323423423;
+
+    obj = qobject_from_jsonf("%d", value);
+    fail_unless(obj != NULL);
+    fail_unless(qobject_type(obj) == QTYPE_QINT);
+
+    qint = qobject_to_qint(obj);
+    fail_unless(qint_get_int(qint) == value);
+
+    QDECREF(qint);
+
+    obj = qobject_from_jsonf("%" PRId64, value64);
+    fail_unless(obj != NULL);
+    fail_unless(qobject_type(obj) == QTYPE_QINT);
+
+    qint = qobject_to_qint(obj);
+    fail_unless(qint_get_int(qint) == value64);
+
+    QDECREF(qint);
+
+    obj = qobject_from_jsonf("%f", valuef);
+    fail_unless(obj != NULL);
+    fail_unless(qobject_type(obj) == QTYPE_QFLOAT);
+
+    qfloat = qobject_to_qfloat(obj);
+    fail_unless(qfloat_get_double(qfloat) == valuef);
+
+    QDECREF(qfloat);
+}
+END_TEST
+
+START_TEST(keyword_literal)
+{
+    QObject *obj;
+    QBool *qbool;
+
+    obj = qobject_from_json("true");
+    fail_unless(obj != NULL);
+    fail_unless(qobject_type(obj) == QTYPE_QBOOL);
+
+    qbool = qobject_to_qbool(obj);
+    fail_unless(qbool_get_int(qbool) != 0);
+
+    QDECREF(qbool);
+
+    obj = qobject_from_json("false");
+    fail_unless(obj != NULL);
+    fail_unless(qobject_type(obj) == QTYPE_QBOOL);
+
+    qbool = qobject_to_qbool(obj);
+    fail_unless(qbool_get_int(qbool) == 0);
+
+    QDECREF(qbool);
+
+    obj = qobject_from_jsonf("%i", false);
+    fail_unless(obj != NULL);
+    fail_unless(qobject_type(obj) == QTYPE_QBOOL);
+
+    qbool = qobject_to_qbool(obj);
+    fail_unless(qbool_get_int(qbool) == 0);
+
+    QDECREF(qbool);
+    
+    obj = qobject_from_jsonf("%i", true);
+    fail_unless(obj != NULL);
+    fail_unless(qobject_type(obj) == QTYPE_QBOOL);
+
+    qbool = qobject_to_qbool(obj);
+    fail_unless(qbool_get_int(qbool) != 0);
+
+    QDECREF(qbool);
+}
+END_TEST
+
+typedef struct LiteralQDictEntry LiteralQDictEntry;
+typedef struct LiteralQObject LiteralQObject;
+
+struct LiteralQObject
+{
+    int type;
+    union {
+        int64_t qint;
+        const char *qstr;
+        LiteralQDictEntry *qdict;
+        LiteralQObject *qlist;
+    } value;
+};
+
+struct LiteralQDictEntry
+{
+    const char *key;
+    LiteralQObject value;
+};
+
+#define QLIT_QINT(val) (LiteralQObject){.type = QTYPE_QINT, .value.qint = 
(val)}
+#define QLIT_QSTR(val) (LiteralQObject){.type = QTYPE_QSTRING, .value.qstr = 
(val)}
+#define QLIT_QDICT(val) (LiteralQObject){.type = QTYPE_QDICT, .value.qdict = 
(val)}
+#define QLIT_QLIST(val) (LiteralQObject){.type = QTYPE_QLIST, .value.qlist = 
(val)}
+
+typedef struct QListCompareHelper
+{
+    int index;
+    LiteralQObject *objs;
+    int result;
+} QListCompareHelper;
+
+static int compare_litqobj_to_qobj(LiteralQObject *lhs, QObject *rhs);
+
+static void compare_helper(QObject *obj, void *opaque)
+{
+    QListCompareHelper *helper = opaque;
+
+    if (helper->result == 0) {
+        return;
+    }
+
+    if (helper->objs[helper->index].type == QTYPE_NONE) {
+        helper->result = 0;
+        return;
+    }
+
+    helper->result = compare_litqobj_to_qobj(&helper->objs[helper->index++], 
obj);
+}
+
+static int compare_litqobj_to_qobj(LiteralQObject *lhs, QObject *rhs)
+{
+    if (lhs->type != qobject_type(rhs)) {
+        return 0;
+    }
+
+    switch (lhs->type) {
+    case QTYPE_QINT:
+        return lhs->value.qint == qint_get_int(qobject_to_qint(rhs));
+    case QTYPE_QSTRING:
+        return (strcmp(lhs->value.qstr, 
qstring_get_str(qobject_to_qstring(rhs))) == 0);
+    case QTYPE_QDICT: {
+        int i;
+
+        for (i = 0; lhs->value.qdict[i].key; i++) {
+            QObject *obj = qdict_get(qobject_to_qdict(rhs), 
lhs->value.qdict[i].key);
+
+            if (!compare_litqobj_to_qobj(&lhs->value.qdict[i].value, obj)) {
+                return 0;
+            }
+        }
+
+        return 1;
+    }
+    case QTYPE_QLIST: {
+        QListCompareHelper helper;
+
+        helper.index = 0;
+        helper.objs = lhs->value.qlist;
+        helper.result = 1;
+        
+        qlist_iter(qobject_to_qlist(rhs), compare_helper, &helper);
+
+        return helper.result;
+    }
+    default:
+        break;
+    }
+
+    return 0;
+}
+
+START_TEST(simple_dict)
+{
+    int i;
+    struct {
+        const char *encoded;
+        LiteralQObject decoded;
+    } test_cases[] = {
+        {
+            .encoded = "{\"foo\":42,\"bar\":\"hello world\"}",
+            .decoded = QLIT_QDICT(((LiteralQDictEntry[]){
+                        { "foo", QLIT_QINT(42) },
+                        { "bar", QLIT_QSTR("hello world") },
+                        { }
+                    })),
+        }, {
+            .encoded = "{}",
+            .decoded = QLIT_QDICT(((LiteralQDictEntry[]){
+                        { }
+                    })),
+        }, {
+            .encoded = "{\"foo\":43}",
+            .decoded = QLIT_QDICT(((LiteralQDictEntry[]){
+                        { "foo", QLIT_QINT(43) },
+                        { }
+                    })),
+        },
+        { }
+    };
+
+    for (i = 0; test_cases[i].encoded; i++) {
+        QObject *obj;
+
+        obj = qobject_from_json(test_cases[i].encoded);
+        fail_unless(obj != NULL);
+        fail_unless(qobject_type(obj) == QTYPE_QDICT);
+
+        fail_unless(compare_litqobj_to_qobj(&test_cases[i].decoded, obj) == 1);
+
+        qobject_decref(obj);
+    }
+}
+END_TEST
+
+START_TEST(simple_list)
+{
+    int i;
+    struct {
+        const char *encoded;
+        LiteralQObject decoded;
+    } test_cases[] = {
+        {
+            .encoded = "[43,42]",
+            .decoded = QLIT_QLIST(((LiteralQObject[]){
+                        QLIT_QINT(43),
+                        QLIT_QINT(42),
+                        { }
+                    })),
+        },
+        {
+            .encoded = "[43]",
+            .decoded = QLIT_QLIST(((LiteralQObject[]){
+                        QLIT_QINT(43),
+                        { }
+                    })),
+        },
+        {
+            .encoded = "[]",
+            .decoded = QLIT_QLIST(((LiteralQObject[]){
+                        { }
+                    })),
+        },
+        { }
+    };
+
+    for (i = 0; test_cases[i].encoded; i++) {
+        QObject *obj;
+
+        obj = qobject_from_json(test_cases[i].encoded);
+        fail_unless(obj != NULL);
+        fail_unless(qobject_type(obj) == QTYPE_QLIST);
+
+        fail_unless(compare_litqobj_to_qobj(&test_cases[i].decoded, obj) == 1);
+
+        qobject_decref(obj);
+    }
+}
+END_TEST
+
+START_TEST(simple_whitespace)
+{
+    int i;
+    struct {
+        const char *encoded;
+        LiteralQObject decoded;
+    } test_cases[] = {
+        {
+            .encoded = " [ 43 , 42 ]",
+            .decoded = QLIT_QLIST(((LiteralQObject[]){
+                        QLIT_QINT(43),
+                        QLIT_QINT(42),
+                        { }
+                    })),
+        },
+        {
+            .encoded = " [ 43 , { 'h' : 'b' }, [ ], 42 ]",
+            .decoded = QLIT_QLIST(((LiteralQObject[]){
+                        QLIT_QINT(43),
+                        QLIT_QDICT(((LiteralQDictEntry[]){
+                                    { "h", QLIT_QSTR("b") },
+                                    { }})),
+                        QLIT_QLIST(((LiteralQObject[]){
+                                    { }})),
+                        QLIT_QINT(42),
+                        { }
+                    })),
+        },
+        {
+            .encoded = " [ 43 , { 'h' : 'b' , 'a' : 32 }, [ ], 42 ]",
+            .decoded = QLIT_QLIST(((LiteralQObject[]){
+                        QLIT_QINT(43),
+                        QLIT_QDICT(((LiteralQDictEntry[]){
+                                    { "h", QLIT_QSTR("b") },
+                                    { "a", QLIT_QINT(32) },
+                                    { }})),
+                        QLIT_QLIST(((LiteralQObject[]){
+                                    { }})),
+                        QLIT_QINT(42),
+                        { }
+                    })),
+        },
+        { }
+    };
+
+    for (i = 0; test_cases[i].encoded; i++) {
+        QObject *obj;
+
+        obj = qobject_from_json(test_cases[i].encoded);
+        fail_unless(obj != NULL);
+        fail_unless(qobject_type(obj) == QTYPE_QLIST);
+
+        fail_unless(compare_litqobj_to_qobj(&test_cases[i].decoded, obj) == 1);
+
+        qobject_decref(obj);
+    }
+}
+END_TEST
+
+START_TEST(simple_varargs)
+{
+    QObject *embedded_obj;
+    QObject *obj;
+    LiteralQObject decoded = QLIT_QLIST(((LiteralQObject[]){
+            QLIT_QINT(1),
+            QLIT_QINT(2),
+            QLIT_QLIST(((LiteralQObject[]){
+                        QLIT_QINT(32),
+                        QLIT_QINT(42),
+                        {}})),
+            {}}));
+
+    embedded_obj = qobject_from_json("[32, 42]");
+    fail_unless(embedded_obj != NULL);
+
+    obj = qobject_from_jsonf("[%d, 2, %p]", 1, embedded_obj);
+    fail_unless(obj != NULL);
+
+    fail_unless(compare_litqobj_to_qobj(&decoded, obj) == 1);
+
+    qobject_decref(obj);
+}
+END_TEST
+
+static Suite *qjson_suite(void)
+{
+    Suite *suite;
+    TCase *string_literals, *number_literals, *keyword_literals;
+    TCase *dicts, *lists, *whitespace, *varargs;
+
+    string_literals = tcase_create("String Literals");
+    tcase_add_test(string_literals, simple_string);
+    tcase_add_test(string_literals, escaped_string);
+    tcase_add_test(string_literals, single_quote_string);
+    tcase_add_test(string_literals, vararg_string);
+
+    number_literals = tcase_create("Number Literals");
+    tcase_add_test(number_literals, simple_number);
+    tcase_add_test(number_literals, float_number);
+    tcase_add_test(number_literals, vararg_number);
+
+    keyword_literals = tcase_create("Keywords");
+    tcase_add_test(keyword_literals, keyword_literal);
+    dicts = tcase_create("Objects");
+    tcase_add_test(dicts, simple_dict);
+    lists = tcase_create("Lists");
+    tcase_add_test(lists, simple_list);
+
+    whitespace = tcase_create("Whitespace");
+    tcase_add_test(whitespace, simple_whitespace);
+
+    varargs = tcase_create("Varargs");
+    tcase_add_test(varargs, simple_varargs);
+
+    suite = suite_create("QJSON test-suite");
+    suite_add_tcase(suite, string_literals);
+    suite_add_tcase(suite, number_literals);
+    suite_add_tcase(suite, keyword_literals);
+    suite_add_tcase(suite, dicts);
+    suite_add_tcase(suite, lists);
+    suite_add_tcase(suite, whitespace);
+    suite_add_tcase(suite, varargs);
+
+    return suite;
+}
+
+int main(void)
+{
+    int nf;
+    Suite *s;
+    SRunner *sr;
+
+    s = qjson_suite();
+    sr = srunner_create(s);
+        
+    srunner_run_all(sr, CK_NORMAL);
+    nf = srunner_ntests_failed(sr);
+    srunner_free(sr);
+    
+    return (nf == 0) ? EXIT_SUCCESS : EXIT_FAILURE;
+}
diff --git a/configure b/configure
index 55be0fb..20bd39c 100755
--- a/configure
+++ b/configure
@@ -2092,7 +2092,7 @@ if test `expr "$target_list" : ".*softmmu.*"` != 0 ; then
       tools="qemu-nbd\$(EXESUF) qemu-io\$(EXESUF) $tools"
     if [ "$check_utests" = "yes" ]; then
       tools="check-qint check-qstring check-qdict check-qlist $tools"
-      tools="check-qfloat $tools"
+      tools="check-qfloat check-qjson $tools"
     fi
   elif test "$mingw32" = "yes" ; then
       tools="qemu-io\$(EXESUF) $tools"
-- 
1.6.2.5





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