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[Qemu-devel] [PULL 11/20] qapi: Test use of 'number' within alternates


From: Markus Armbruster
Subject: [Qemu-devel] [PULL 11/20] qapi: Test use of 'number' within alternates
Date: Fri, 9 Oct 2015 17:14:12 +0200

From: Eric Blake <address@hidden>

Add some testsuite exposure for use of a 'number' as part of
an alternate.  The current state of the tree has a few bugs
exposed by this: our input parser depends on the ordering of
how the qapi schema declared the alternate, and the parser
does not accept integers for a 'number' in an alternate even
though it does for numbers outside of an alternate.

Mixing 'int' and 'number' in the same alternate is unusual,
since both are supplied by json-numbers, but there does not
seem to be a technical reason to forbid it given that our
json lexer distinguishes between json-numbers that can be
represented as an int vs. those that cannot.

Improve the existing test_visitor_in_alternate() to match the
style of the new test_visitor_in_alternate_number(), and to
ensure full coverage of all possible qtype parsing.

Signed-off-by: Eric Blake <address@hidden>
Message-Id: <address@hidden>
[Eric's follow-up fix squashed in]
Signed-off-by: Markus Armbruster <address@hidden>
---
 tests/qapi-schema/qapi-schema-test.json |   8 ++
 tests/qapi-schema/qapi-schema-test.out  |  24 ++++++
 tests/test-qmp-input-visitor.c          | 131 +++++++++++++++++++++++++++++++-
 3 files changed, 160 insertions(+), 3 deletions(-)

diff --git a/tests/qapi-schema/qapi-schema-test.json 
b/tests/qapi-schema/qapi-schema-test.json
index c511338..abe59fd 100644
--- a/tests/qapi-schema/qapi-schema-test.json
+++ b/tests/qapi-schema/qapi-schema-test.json
@@ -67,6 +67,14 @@
 { 'struct': 'UserDefC',
   'data': { 'string1': 'str', 'string2': 'str' } }
 
+# for testing use of 'number' within alternates
+{ 'alternate': 'AltStrBool', 'data': { 's': 'str', 'b': 'bool' } }
+{ 'alternate': 'AltStrNum', 'data': { 's': 'str', 'n': 'number' } }
+{ 'alternate': 'AltNumStr', 'data': { 'n': 'number', 's': 'str' } }
+{ 'alternate': 'AltStrInt', 'data': { 's': 'str', 'i': 'int' } }
+{ 'alternate': 'AltIntNum', 'data': { 'i': 'int', 'n': 'number' } }
+{ 'alternate': 'AltNumInt', 'data': { 'n': 'number', 'i': 'int' } }
+
 # for testing native lists
 { 'union': 'UserDefNativeListUnion',
   'data': { 'integer': ['int'],
diff --git a/tests/qapi-schema/qapi-schema-test.out 
b/tests/qapi-schema/qapi-schema-test.out
index 28a0b3c..8f81784 100644
--- a/tests/qapi-schema/qapi-schema-test.out
+++ b/tests/qapi-schema/qapi-schema-test.out
@@ -53,6 +53,30 @@ object :obj-user_def_cmd2-arg
 object :obj-user_def_cmd3-arg
     member a: int optional=False
     member b: int optional=True
+alternate AltIntNum
+    case i: int
+    case n: number
+enum AltIntNumKind ['i', 'n']
+alternate AltNumInt
+    case n: number
+    case i: int
+enum AltNumIntKind ['n', 'i']
+alternate AltNumStr
+    case n: number
+    case s: str
+enum AltNumStrKind ['n', 's']
+alternate AltStrBool
+    case s: str
+    case b: bool
+enum AltStrBoolKind ['s', 'b']
+alternate AltStrInt
+    case s: str
+    case i: int
+enum AltStrIntKind ['s', 'i']
+alternate AltStrNum
+    case s: str
+    case n: number
+enum AltStrNumKind ['s', 'n']
 event EVENT_A None
 event EVENT_B None
 event EVENT_C :obj-EVENT_C-arg
diff --git a/tests/test-qmp-input-visitor.c b/tests/test-qmp-input-visitor.c
index 61715b3..183a9ec 100644
--- a/tests/test-qmp-input-visitor.c
+++ b/tests/test-qmp-input-visitor.c
@@ -371,12 +371,135 @@ static void 
test_visitor_in_alternate(TestInputVisitorData *data,
     UserDefAlternate *tmp;
 
     v = visitor_input_test_init(data, "42");
-
-    visit_type_UserDefAlternate(v, &tmp, NULL, &err);
-    g_assert(err == NULL);
+    visit_type_UserDefAlternate(v, &tmp, NULL, &error_abort);
     g_assert_cmpint(tmp->kind, ==, USER_DEF_ALTERNATE_KIND_I);
     g_assert_cmpint(tmp->i, ==, 42);
     qapi_free_UserDefAlternate(tmp);
+    visitor_input_teardown(data, NULL);
+
+    v = visitor_input_test_init(data, "'string'");
+    visit_type_UserDefAlternate(v, &tmp, NULL, &error_abort);
+    g_assert_cmpint(tmp->kind, ==, USER_DEF_ALTERNATE_KIND_S);
+    g_assert_cmpstr(tmp->s, ==, "string");
+    qapi_free_UserDefAlternate(tmp);
+    visitor_input_teardown(data, NULL);
+
+    v = visitor_input_test_init(data, "false");
+    visit_type_UserDefAlternate(v, &tmp, NULL, &err);
+    g_assert(err);
+    error_free(err);
+    err = NULL;
+    qapi_free_UserDefAlternate(tmp);
+    visitor_input_teardown(data, NULL);
+}
+
+static void test_visitor_in_alternate_number(TestInputVisitorData *data,
+                                             const void *unused)
+{
+    Visitor *v;
+    Error *err = NULL;
+    AltStrBool *asb;
+    AltStrNum *asn;
+    AltNumStr *ans;
+    AltStrInt *asi;
+    AltIntNum *ain;
+    AltNumInt *ani;
+
+    /* Parsing an int */
+
+    v = visitor_input_test_init(data, "42");
+    visit_type_AltStrBool(v, &asb, NULL, &err);
+    g_assert(err);
+    error_free(err);
+    err = NULL;
+    qapi_free_AltStrBool(asb);
+    visitor_input_teardown(data, NULL);
+
+    /* FIXME: Order of alternate should not affect semantics; asn should
+     * parse the same as ans */
+    v = visitor_input_test_init(data, "42");
+    visit_type_AltStrNum(v, &asn, NULL, &err);
+    /* FIXME g_assert_cmpint(asn->kind, == ALT_STR_NUM_KIND_N); */
+    /* FIXME g_assert_cmpfloat(asn->n, ==, 42); */
+    g_assert(err);
+    error_free(err);
+    err = NULL;
+    qapi_free_AltStrNum(asn);
+    visitor_input_teardown(data, NULL);
+
+    v = visitor_input_test_init(data, "42");
+    visit_type_AltNumStr(v, &ans, NULL, &error_abort);
+    g_assert_cmpint(ans->kind, ==, ALT_NUM_STR_KIND_N);
+    g_assert_cmpfloat(ans->n, ==, 42);
+    qapi_free_AltNumStr(ans);
+    visitor_input_teardown(data, NULL);
+
+    v = visitor_input_test_init(data, "42");
+    visit_type_AltStrInt(v, &asi, NULL, &error_abort);
+    g_assert_cmpint(asi->kind, ==, ALT_STR_INT_KIND_I);
+    g_assert_cmpint(asi->i, ==, 42);
+    qapi_free_AltStrInt(asi);
+    visitor_input_teardown(data, NULL);
+
+    v = visitor_input_test_init(data, "42");
+    visit_type_AltIntNum(v, &ain, NULL, &error_abort);
+    g_assert_cmpint(ain->kind, ==, ALT_INT_NUM_KIND_I);
+    g_assert_cmpint(ain->i, ==, 42);
+    qapi_free_AltIntNum(ain);
+    visitor_input_teardown(data, NULL);
+
+    v = visitor_input_test_init(data, "42");
+    visit_type_AltNumInt(v, &ani, NULL, &error_abort);
+    g_assert_cmpint(ani->kind, ==, ALT_NUM_INT_KIND_I);
+    g_assert_cmpint(ani->i, ==, 42);
+    qapi_free_AltNumInt(ani);
+    visitor_input_teardown(data, NULL);
+
+    /* Parsing a double */
+
+    v = visitor_input_test_init(data, "42.5");
+    visit_type_AltStrBool(v, &asb, NULL, &err);
+    g_assert(err);
+    error_free(err);
+    err = NULL;
+    qapi_free_AltStrBool(asb);
+    visitor_input_teardown(data, NULL);
+
+    v = visitor_input_test_init(data, "42.5");
+    visit_type_AltStrNum(v, &asn, NULL, &error_abort);
+    g_assert_cmpint(asn->kind, ==, ALT_STR_NUM_KIND_N);
+    g_assert_cmpfloat(asn->n, ==, 42.5);
+    qapi_free_AltStrNum(asn);
+    visitor_input_teardown(data, NULL);
+
+    v = visitor_input_test_init(data, "42.5");
+    visit_type_AltNumStr(v, &ans, NULL, &error_abort);
+    g_assert_cmpint(ans->kind, ==, ALT_NUM_STR_KIND_N);
+    g_assert_cmpfloat(ans->n, ==, 42.5);
+    qapi_free_AltNumStr(ans);
+    visitor_input_teardown(data, NULL);
+
+    v = visitor_input_test_init(data, "42.5");
+    visit_type_AltStrInt(v, &asi, NULL, &err);
+    g_assert(err);
+    error_free(err);
+    err = NULL;
+    qapi_free_AltStrInt(asi);
+    visitor_input_teardown(data, NULL);
+
+    v = visitor_input_test_init(data, "42.5");
+    visit_type_AltIntNum(v, &ain, NULL, &error_abort);
+    g_assert_cmpint(ain->kind, ==, ALT_INT_NUM_KIND_N);
+    g_assert_cmpfloat(ain->n, ==, 42.5);
+    qapi_free_AltIntNum(ain);
+    visitor_input_teardown(data, NULL);
+
+    v = visitor_input_test_init(data, "42.5");
+    visit_type_AltNumInt(v, &ani, NULL, &error_abort);
+    g_assert_cmpint(ani->kind, ==, ALT_NUM_INT_KIND_N);
+    g_assert_cmpint(ani->n, ==, 42.5);
+    qapi_free_AltNumInt(ani);
+    visitor_input_teardown(data, NULL);
 }
 
 static void test_native_list_integer_helper(TestInputVisitorData *data,
@@ -720,6 +843,8 @@ int main(int argc, char **argv)
                            &in_visitor_data, test_visitor_in_alternate);
     input_visitor_test_add("/visitor/input/errors",
                            &in_visitor_data, test_visitor_in_errors);
+    input_visitor_test_add("/visitor/input/alternate-number",
+                           &in_visitor_data, test_visitor_in_alternate_number);
     input_visitor_test_add("/visitor/input/native_list/int",
                            &in_visitor_data,
                            test_visitor_in_native_list_int);
-- 
2.4.3




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