qapi: Add tests of redefined expressions

Demonstrate that the qapi generator doesn't deal very well with
redefined expressions.  At the parse level, they are silently
accepted; and while the testsuite just stops at parsing, I've
further tested that many of them cause generator crashes or
invalid C code if they were appended to qapi-schema-test.json.
A later patch will tighten things up and adjust the testsuite
to match.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

tests/Makefile

@@ -214,6 +214,8 @@ check-qapi-schema-y := $(addprefix tests/qapi-schema/, \
 	missing-type.json bad-ident.json ident-with-escape.json \
 	double-type.json bad-base.json bad-type-bool.json bad-type-int.json \
 	bad-type-dict.json double-data.json unknown-expr-key.json \
+	redefined-type.json redefined-command.json redefined-builtin.json \
+	redefined-event.json command-int.json event-max.json \
 	missing-colon.json missing-comma-list.json \
 	missing-comma-object.json non-objects.json \
 	qapi-schema-test.json quoted-structural-chars.json \

tests/qapi-schema/command-int.exit

@@ -0,0 +1 @@
+0

tests/qapi-schema/command-int.json

@@ -0,0 +1,3 @@
+# FIXME: we should reject collisions between commands and types
+{ 'command': 'int', 'data': { 'character': 'str' },
+  'returns': { 'value': 'int' } }

tests/qapi-schema/command-int.out

@@ -0,0 +1,3 @@
+[OrderedDict([('command', 'int'), ('data', OrderedDict([('character', 'str')])), ('returns', OrderedDict([('value', 'int')]))])]
+[]
+[]

tests/qapi-schema/event-max.exit

@@ -0,0 +1 @@
+0

tests/qapi-schema/event-max.json

@@ -0,0 +1,2 @@
+# FIXME: an event named 'MAX' would conflict with implicit C enum
+{ 'event': 'MAX' }

tests/qapi-schema/event-max.out

@@ -0,0 +1,3 @@
+[OrderedDict([('event', 'MAX')])]
+[]
+[]

tests/qapi-schema/redefined-builtin.exit

@@ -0,0 +1 @@
+0

tests/qapi-schema/redefined-builtin.json

@@ -0,0 +1,2 @@
+# FIXME: we should reject types that duplicate builtin names
+{ 'type': 'size', 'data': { 'myint': 'size' } }

tests/qapi-schema/redefined-builtin.out

@@ -0,0 +1,3 @@
+[OrderedDict([('type', 'size'), ('data', OrderedDict([('myint', 'size')]))])]
+[]
+[OrderedDict([('type', 'size'), ('data', OrderedDict([('myint', 'size')]))])]

tests/qapi-schema/redefined-command.exit

@@ -0,0 +1 @@
+0

tests/qapi-schema/redefined-command.json

@@ -0,0 +1,3 @@
+# FIXME: we should reject commands defined more than once
+{ 'command': 'foo', 'data': { 'one': 'str' } }
+{ 'command': 'foo', 'data': { '*two': 'str' } }

tests/qapi-schema/redefined-command.out

@@ -0,0 +1,4 @@
+[OrderedDict([('command', 'foo'), ('data', OrderedDict([('one', 'str')]))]),
+ OrderedDict([('command', 'foo'), ('data', OrderedDict([('*two', 'str')]))])]
+[]
+[]

tests/qapi-schema/redefined-event.exit

@@ -0,0 +1 @@
+0

tests/qapi-schema/redefined-event.json

@@ -0,0 +1,3 @@
+# FIXME: we should reject duplicate events
+{ 'event': 'EVENT_A', 'data': { 'myint': 'int' } }
+{ 'event': 'EVENT_A', 'data': { 'myint': 'int' } }

tests/qapi-schema/redefined-event.out

@@ -0,0 +1,4 @@
+[OrderedDict([('event', 'EVENT_A'), ('data', OrderedDict([('myint', 'int')]))]),
+ OrderedDict([('event', 'EVENT_A'), ('data', OrderedDict([('myint', 'int')]))])]
+[]
+[]

tests/qapi-schema/redefined-type.exit

@@ -0,0 +1 @@
+0

tests/qapi-schema/redefined-type.json

@@ -0,0 +1,3 @@
+# FIXME: we should reject types defined more than once
+{ 'type': 'foo', 'data': { 'one': 'str' } }
+{ 'enum': 'foo', 'data': [ 'two' ] }

tests/qapi-schema/redefined-type.out

@@ -0,0 +1,4 @@
+[OrderedDict([('type', 'foo'), ('data', OrderedDict([('one', 'str')]))]),
+ OrderedDict([('enum', 'foo'), ('data', ['two'])])]
+[{'enum_name': 'foo', 'enum_values': ['two']}]
+[OrderedDict([('type', 'foo'), ('data', OrderedDict([('one', 'str')]))])]