Add test coverage for the sequences fixed in the previous patch, where
changing the export name should clean up anything remembered about a
former export name. The tests in other language bindings are
logically equivalent.
---
python/t/230-opt-info.py | 11 ++++++++---
ocaml/tests/test_230_opt_info.ml | 11 ++++++++---
tests/opt-info.c | 24 ++++++++++++++++++------
golang/libnbd_230_opt_info_test.go | 23 +++++++++++++++++------
4 files changed, 51 insertions(+), 18 deletions(-)
diff --git a/python/t/230-opt-info.py b/python/t/230-opt-info.py
index 8aa47ae..fc22a97 100644
--- a/python/t/230-opt-info.py
+++ b/python/t/230-opt-info.py
@@ -45,17 +45,22 @@ assert h.get_size() == 0
assert h.is_read_only() is True
assert h.can_meta_context(nbd.CONTEXT_BASE_ALLOCATION) is True
-# info on something not present fails, wipes out prior info
-h.set_export_name("a")
-must_fail(h.opt_info)
+# changing export wipes out prior info
+h.set_export_name("b")
must_fail(h.get_size)
must_fail(h.is_read_only)
must_fail(h.can_meta_context, nbd.CONTEXT_BASE_ALLOCATION)
+# info on something not present fails
+h.set_export_name("a")
+must_fail(h.opt_info)
+
# info for a different export, with automatic meta_context disabled
h.set_export_name("b")
h.set_request_meta_context(False)
h.opt_info()
+# idempotent name change is no-op
+h.set_export_name("b")
assert h.get_size() == 1
assert h.is_read_only() is False
must_fail(h.can_meta_context, nbd.CONTEXT_BASE_ALLOCATION)
diff --git a/ocaml/tests/test_230_opt_info.ml b/ocaml/tests/test_230_opt_info.ml
index ec735ff..0403d14 100644
--- a/ocaml/tests/test_230_opt_info.ml
+++ b/ocaml/tests/test_230_opt_info.ml
@@ -62,17 +62,22 @@ let
let meta = NBD.can_meta_context nbd NBD.context_base_allocation in
assert meta;
- (* info on something not present fails, wipes out prior info *)
- NBD.set_export_name nbd "a";
- fail_unary NBD.opt_info nbd;
+ (* changing export wipes out prior info *)
+ NBD.set_export_name nbd "b";
fail_unary NBD.get_size nbd;
fail_unary NBD.is_read_only nbd;
fail_binary NBD.can_meta_context nbd NBD.context_base_allocation;
+ (* info on something not present fails *)
+ NBD.set_export_name nbd "a";
+ fail_unary NBD.opt_info nbd;
+
(* info for a different export, with automatic meta_context disabled *)
NBD.set_export_name nbd "b";
NBD.set_request_meta_context nbd false;
NBD.opt_info nbd;
+ (* idempotent name change is no-op *)
+ NBD.set_export_name nbd "b";
let size = NBD.get_size nbd in
assert (size = 1L);
let ro = NBD.is_read_only nbd in
diff --git a/tests/opt-info.c b/tests/opt-info.c
index 26de0ee..70028ff 100644
--- a/tests/opt-info.c
+++ b/tests/opt-info.c
@@ -17,6 +17,7 @@
*/
/* Test behavior of nbd_opt_info. */
+/* See also unit test 230 in the various language ports. */
#include <config.h>
@@ -80,15 +81,11 @@ main (int argc, char *argv[])
exit (EXIT_FAILURE);
}
- /* info on something not present fails, wipes out prior info */
- if (nbd_set_export_name (nbd, "a") == -1) {
+ /* changing export wipes out prior info */
+ if (nbd_set_export_name (nbd, "b") == -1) {
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
- if (nbd_opt_info (nbd) != -1) {
- fprintf (stderr, "expecting error for opt_info\n");
- exit (EXIT_FAILURE);
- }
if (nbd_get_size (nbd) != -1) {
fprintf (stderr, "expecting error for get_size\n");
exit (EXIT_FAILURE);
@@ -102,6 +99,16 @@ main (int argc, char *argv[])
exit (EXIT_FAILURE);
}
+ /* info on something not present fails */
+ if (nbd_set_export_name (nbd, "a") == -1) {
+ fprintf (stderr, "%s\n", nbd_get_error ());
+ exit (EXIT_FAILURE);
+ }
+ if (nbd_opt_info (nbd) != -1) {
+ fprintf (stderr, "expecting error for opt_info\n");
+ exit (EXIT_FAILURE);
+ }
+
/* info for a different export, with automatic meta_context disabled */
if (nbd_set_export_name (nbd, "b") == -1) {
fprintf (stderr, "%s\n", nbd_get_error ());
@@ -115,6 +122,11 @@ main (int argc, char *argv[])
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
+ /* idempotent name change is no-op */
+ if (nbd_set_export_name (nbd, "b") == -1) {
+ fprintf (stderr, "%s\n", nbd_get_error ());
+ exit (EXIT_FAILURE);
+ }
if ((r = nbd_get_size (nbd)) != 1) {
fprintf (stderr, "expecting size of 1, got %" PRId64 "\n", r);
exit (EXIT_FAILURE);
diff --git a/golang/libnbd_230_opt_info_test.go
b/golang/libnbd_230_opt_info_test.go
index bc4cadf..e16f661 100644
--- a/golang/libnbd_230_opt_info_test.go
+++ b/golang/libnbd_230_opt_info_test.go
@@ -91,15 +91,11 @@ func Test230OptInfo(t *testing.T) {
t.Fatalf("unexpected meta context")
}
- /* info on something not present fails, wipes out prior info */
- err = h.SetExportName("a")
+ /* changing export wipes out prior info */
+ err = h.SetExportName("b")
if err != nil {
t.Fatalf("set export name failed unexpectedly: %s", err)
}
- err = h.OptInfo()
- if err == nil {
- t.Fatalf("expected error")
- }
_, err = h.GetSize()
if err == nil {
t.Fatalf("expected error")
@@ -113,6 +109,16 @@ func Test230OptInfo(t *testing.T) {
t.Fatalf("expected error")
}
+ /* info on something not present fails */
+ err = h.SetExportName("a")
+ if err != nil {
+ t.Fatalf("set export name failed unexpectedly: %s", err)
+ }
+ err = h.OptInfo()
+ if err == nil {
+ t.Fatalf("expected error")
+ }
+
/* info for a different export, with automatic meta_context disabled */
err = h.SetExportName("b")
if err != nil {
@@ -126,6 +132,11 @@ func Test230OptInfo(t *testing.T) {
if err != nil {
t.Fatalf("opt_info failed unexpectedly: %s", err)
}
+ /* idempotent name change is no-op */
+ err = h.SetExportName("b")
+ if err != nil {
+ t.Fatalf("set export name failed unexpectedly: %s", err)
+ }
size, err = h.GetSize()
if err != nil {
t.Fatalf("size failed unexpectedly: %s", err)
--
2.37.2
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