diff --git a/tests/Makefile b/tests/Makefile
index 52711237ca..0d560c51aa 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -229,9 +229,9 @@ check-qapi-schema-y := $(addprefix tests/qapi-schema/, \
 	redefined-type.json redefined-command.json redefined-builtin.json \
 	redefined-event.json command-int.json bad-data.json event-max.json \
 	type-bypass.json type-bypass-no-gen.json type-bypass-bad-gen.json \
-	data-array-empty.json data-array-unknown.json data-int.json \
-	data-unknown.json data-member-unknown.json data-member-array.json \
-	data-member-array-bad.json returns-array-bad.json returns-int.json \
+	args-array-empty.json args-array-unknown.json args-int.json \
+	args-unknown.json args-member-unknown.json args-member-array.json \
+	args-member-array-bad.json returns-array-bad.json returns-int.json \
 	returns-unknown.json returns-alternate.json returns-whitelist.json \
 	missing-colon.json missing-comma-list.json missing-comma-object.json \
 	nested-struct-data.json nested-struct-returns.json non-objects.json \
diff --git a/tests/qapi-schema/data-array-empty.err b/tests/qapi-schema/args-array-empty.err
similarity index 50%
rename from tests/qapi-schema/data-array-empty.err
rename to tests/qapi-schema/args-array-empty.err
index f713f14893..cb7ed33b3f 100644
--- a/tests/qapi-schema/data-array-empty.err
+++ b/tests/qapi-schema/args-array-empty.err
@@ -1 +1 @@
-tests/qapi-schema/data-array-empty.json:2: Member 'empty' of 'data' for command 'oops': array type must contain single type name
+tests/qapi-schema/args-array-empty.json:2: Member 'empty' of 'data' for command 'oops': array type must contain single type name
diff --git a/tests/qapi-schema/data-array-empty.exit b/tests/qapi-schema/args-array-empty.exit
similarity index 100%
rename from tests/qapi-schema/data-array-empty.exit
rename to tests/qapi-schema/args-array-empty.exit
diff --git a/tests/qapi-schema/data-array-empty.json b/tests/qapi-schema/args-array-empty.json
similarity index 100%
rename from tests/qapi-schema/data-array-empty.json
rename to tests/qapi-schema/args-array-empty.json
diff --git a/tests/qapi-schema/data-array-empty.out b/tests/qapi-schema/args-array-empty.out
similarity index 100%
rename from tests/qapi-schema/data-array-empty.out
rename to tests/qapi-schema/args-array-empty.out
diff --git a/tests/qapi-schema/data-array-unknown.err b/tests/qapi-schema/args-array-unknown.err
similarity index 50%
rename from tests/qapi-schema/data-array-unknown.err
rename to tests/qapi-schema/args-array-unknown.err
index 8b731bbcc8..7834d11bc1 100644
--- a/tests/qapi-schema/data-array-unknown.err
+++ b/tests/qapi-schema/args-array-unknown.err
@@ -1 +1 @@
-tests/qapi-schema/data-array-unknown.json:2: Member 'array' of 'data' for command 'oops' uses unknown type 'array of NoSuchType'
+tests/qapi-schema/args-array-unknown.json:2: Member 'array' of 'data' for command 'oops' uses unknown type 'array of NoSuchType'
diff --git a/tests/qapi-schema/data-array-unknown.exit b/tests/qapi-schema/args-array-unknown.exit
similarity index 100%
rename from tests/qapi-schema/data-array-unknown.exit
rename to tests/qapi-schema/args-array-unknown.exit
diff --git a/tests/qapi-schema/data-array-unknown.json b/tests/qapi-schema/args-array-unknown.json
similarity index 100%
rename from tests/qapi-schema/data-array-unknown.json
rename to tests/qapi-schema/args-array-unknown.json
diff --git a/tests/qapi-schema/data-array-unknown.out b/tests/qapi-schema/args-array-unknown.out
similarity index 100%
rename from tests/qapi-schema/data-array-unknown.out
rename to tests/qapi-schema/args-array-unknown.out
diff --git a/tests/qapi-schema/args-int.err b/tests/qapi-schema/args-int.err
new file mode 100644
index 0000000000..dc1d2504ff
--- /dev/null
+++ b/tests/qapi-schema/args-int.err
@@ -0,0 +1 @@
+tests/qapi-schema/args-int.json:2: 'data' for command 'oops' cannot use built-in type 'int'
diff --git a/tests/qapi-schema/data-int.exit b/tests/qapi-schema/args-int.exit
similarity index 100%
rename from tests/qapi-schema/data-int.exit
rename to tests/qapi-schema/args-int.exit
diff --git a/tests/qapi-schema/data-int.json b/tests/qapi-schema/args-int.json
similarity index 100%
rename from tests/qapi-schema/data-int.json
rename to tests/qapi-schema/args-int.json
diff --git a/tests/qapi-schema/data-int.out b/tests/qapi-schema/args-int.out
similarity index 100%
rename from tests/qapi-schema/data-int.out
rename to tests/qapi-schema/args-int.out
diff --git a/tests/qapi-schema/data-member-array-bad.err b/tests/qapi-schema/args-member-array-bad.err
similarity index 52%
rename from tests/qapi-schema/data-member-array-bad.err
rename to tests/qapi-schema/args-member-array-bad.err
index 2c072d5986..881b4d954f 100644
--- a/tests/qapi-schema/data-member-array-bad.err
+++ b/tests/qapi-schema/args-member-array-bad.err
@@ -1 +1 @@
-tests/qapi-schema/data-member-array-bad.json:2: Member 'member' of 'data' for command 'oops': array type must contain single type name
+tests/qapi-schema/args-member-array-bad.json:2: Member 'member' of 'data' for command 'oops': array type must contain single type name
diff --git a/tests/qapi-schema/data-member-array-bad.exit b/tests/qapi-schema/args-member-array-bad.exit
similarity index 100%
rename from tests/qapi-schema/data-member-array-bad.exit
rename to tests/qapi-schema/args-member-array-bad.exit
diff --git a/tests/qapi-schema/data-member-array-bad.json b/tests/qapi-schema/args-member-array-bad.json
similarity index 100%
rename from tests/qapi-schema/data-member-array-bad.json
rename to tests/qapi-schema/args-member-array-bad.json
diff --git a/tests/qapi-schema/data-member-array-bad.out b/tests/qapi-schema/args-member-array-bad.out
similarity index 100%
rename from tests/qapi-schema/data-member-array-bad.out
rename to tests/qapi-schema/args-member-array-bad.out
diff --git a/tests/qapi-schema/data-member-array.err b/tests/qapi-schema/args-member-array.err
similarity index 100%
rename from tests/qapi-schema/data-member-array.err
rename to tests/qapi-schema/args-member-array.err
diff --git a/tests/qapi-schema/data-member-array.exit b/tests/qapi-schema/args-member-array.exit
similarity index 100%
rename from tests/qapi-schema/data-member-array.exit
rename to tests/qapi-schema/args-member-array.exit
diff --git a/tests/qapi-schema/data-member-array.json b/tests/qapi-schema/args-member-array.json
similarity index 100%
rename from tests/qapi-schema/data-member-array.json
rename to tests/qapi-schema/args-member-array.json
diff --git a/tests/qapi-schema/data-member-array.out b/tests/qapi-schema/args-member-array.out
similarity index 100%
rename from tests/qapi-schema/data-member-array.out
rename to tests/qapi-schema/args-member-array.out
diff --git a/tests/qapi-schema/args-member-unknown.err b/tests/qapi-schema/args-member-unknown.err
new file mode 100644
index 0000000000..f6f82828ce
--- /dev/null
+++ b/tests/qapi-schema/args-member-unknown.err
@@ -0,0 +1 @@
+tests/qapi-schema/args-member-unknown.json:2: Member 'member' of 'data' for command 'oops' uses unknown type 'NoSuchType'
diff --git a/tests/qapi-schema/data-member-unknown.exit b/tests/qapi-schema/args-member-unknown.exit
similarity index 100%
rename from tests/qapi-schema/data-member-unknown.exit
rename to tests/qapi-schema/args-member-unknown.exit
diff --git a/tests/qapi-schema/data-member-unknown.json b/tests/qapi-schema/args-member-unknown.json
similarity index 100%
rename from tests/qapi-schema/data-member-unknown.json
rename to tests/qapi-schema/args-member-unknown.json
diff --git a/tests/qapi-schema/data-member-unknown.out b/tests/qapi-schema/args-member-unknown.out
similarity index 100%
rename from tests/qapi-schema/data-member-unknown.out
rename to tests/qapi-schema/args-member-unknown.out
diff --git a/tests/qapi-schema/args-unknown.err b/tests/qapi-schema/args-unknown.err
new file mode 100644
index 0000000000..4d91ec869f
--- /dev/null
+++ b/tests/qapi-schema/args-unknown.err
@@ -0,0 +1 @@
+tests/qapi-schema/args-unknown.json:2: 'data' for command 'oops' uses unknown type 'NoSuchType'
diff --git a/tests/qapi-schema/data-unknown.exit b/tests/qapi-schema/args-unknown.exit
similarity index 100%
rename from tests/qapi-schema/data-unknown.exit
rename to tests/qapi-schema/args-unknown.exit
diff --git a/tests/qapi-schema/data-unknown.json b/tests/qapi-schema/args-unknown.json
similarity index 100%
rename from tests/qapi-schema/data-unknown.json
rename to tests/qapi-schema/args-unknown.json
diff --git a/tests/qapi-schema/data-unknown.out b/tests/qapi-schema/args-unknown.out
similarity index 100%
rename from tests/qapi-schema/data-unknown.out
rename to tests/qapi-schema/args-unknown.out
diff --git a/tests/qapi-schema/data-int.err b/tests/qapi-schema/data-int.err
deleted file mode 100644
index 1a9b077c06..0000000000
--- a/tests/qapi-schema/data-int.err
+++ /dev/null
@@ -1 +0,0 @@
-tests/qapi-schema/data-int.json:2: 'data' for command 'oops' cannot use built-in type 'int'
diff --git a/tests/qapi-schema/data-member-unknown.err b/tests/qapi-schema/data-member-unknown.err
deleted file mode 100644
index ab905db802..0000000000
--- a/tests/qapi-schema/data-member-unknown.err
+++ /dev/null
@@ -1 +0,0 @@
-tests/qapi-schema/data-member-unknown.json:2: Member 'member' of 'data' for command 'oops' uses unknown type 'NoSuchType'
diff --git a/tests/qapi-schema/data-unknown.err b/tests/qapi-schema/data-unknown.err
deleted file mode 100644
index 5b07277a95..0000000000
--- a/tests/qapi-schema/data-unknown.err
+++ /dev/null
@@ -1 +0,0 @@
-tests/qapi-schema/data-unknown.json:2: 'data' for command 'oops' uses unknown type 'NoSuchType'