[libvirt] [PATCH 3/5] conf: test for more scenarios
Eric Blake
eblake at redhat.com
Sun Apr 6 03:32:18 UTC 2014
Part of the upcoming refactoring will change how broken chains
are detected; it makes sense to test that this works. In
particular, test the just-fixed infinite loop detection bug.
Also, make sure that detection of directories is sane.
* tests/virstoragetest.c (testStorageChain): Enhance test.
(mymain): Add more tests.
(testCleanupImages, testPrepImages): Populate a directory.
Signed-off-by: Eric Blake <eblake at redhat.com>
---
tests/virstoragetest.c | 108 +++++++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 104 insertions(+), 4 deletions(-)
diff --git a/tests/virstoragetest.c b/tests/virstoragetest.c
index efd920a..a25f91f 100644
--- a/tests/virstoragetest.c
+++ b/tests/virstoragetest.c
@@ -57,6 +57,7 @@ static char *absqcow2;
static char *canonqcow2;
static char *abswrap;
static char *absqed;
+static char *absdir;
static char *abslink2;
static void
@@ -69,6 +70,7 @@ testCleanupImages(void)
VIR_FREE(canonqcow2);
VIR_FREE(abswrap);
VIR_FREE(absqed);
+ VIR_FREE(absdir);
VIR_FREE(abslink2);
if (chdir(abs_builddir) < 0) {
@@ -110,6 +112,7 @@ testPrepImages(void)
virAsprintf(&absqcow2, "%s/qcow2", datadir) < 0 ||
virAsprintf(&abswrap, "%s/wrap", datadir) < 0 ||
virAsprintf(&absqed, "%s/qed", datadir) < 0 ||
+ virAsprintf(&absdir, "%s/dir", datadir) < 0 ||
virAsprintf(&abslink2, "%s/sub/link2", datadir) < 0)
goto cleanup;
@@ -117,6 +120,10 @@ testPrepImages(void)
fprintf(stderr, "unable to create directory %s\n", datadir "/sub");
goto cleanup;
}
+ if (virFileMakePath(datadir "/dir") < 0) {
+ fprintf(stderr, "unable to create directory %s\n", datadir "/dir");
+ goto cleanup;
+ }
if (chdir(datadir) < 0) {
fprintf(stderr, "unable to test relative backing chains\n");
@@ -231,6 +238,7 @@ testStorageChain(const void *args)
virStorageFileMetadataPtr meta;
virStorageFileMetadataPtr elt;
size_t i = 0;
+ char *broken = NULL;
meta = virStorageFileGetMetadata(data->start, data->format, -1, -1,
(data->flags & ALLOW_PROBE) != 0);
@@ -250,9 +258,19 @@ testStorageChain(const void *args)
goto cleanup;
}
virResetLastError();
- } else if (virGetLastError()) {
- fprintf(stderr, "call should not have warned\n");
- goto cleanup;
+ if (virStorageFileChainGetBroken(meta, &broken) || !broken) {
+ fprintf(stderr, "call should identify broken part of chain\n");
+ goto cleanup;
+ }
+ } else {
+ if (virGetLastError()) {
+ fprintf(stderr, "call should not have warned\n");
+ goto cleanup;
+ }
+ if (virStorageFileChainGetBroken(meta, &broken) || broken) {
+ fprintf(stderr, "chain should not be identified as broken\n");
+ goto cleanup;
+ }
}
elt = meta;
@@ -303,6 +321,7 @@ testStorageChain(const void *args)
ret = 0;
cleanup:
+ VIR_FREE(broken);
virStorageFileFreeMetadata(meta);
return ret;
}
@@ -429,6 +448,40 @@ mymain(void)
.expIsFile = true,
.expCapacity = 1024,
};
+
+ const testFileData dir = {
+ .expIsFile = false,
+ };
+
+ const testFileData qcow2_loop1_rel = {
+ .expBackingStoreRaw = "qcow2",
+ .expDirectory = ".",
+ .expFormat = VIR_STORAGE_FILE_NONE,
+ .expIsFile = true,
+ .expCapacity = 1024,
+ };
+ const testFileData qcow2_loop1_abs = {
+ .expBackingStoreRaw = "qcow2",
+ .expDirectory = datadir,
+ .expFormat = VIR_STORAGE_FILE_NONE,
+ .expIsFile = true,
+ .expCapacity = 1024,
+ };
+ const testFileData qcow2_loop2_rel = {
+ .expBackingStoreRaw = "wrap",
+ .expDirectory = datadir,
+ .expFormat = VIR_STORAGE_FILE_NONE,
+ .expIsFile = true,
+ .expCapacity = 1024,
+ };
+ const testFileData qcow2_loop2_abs = {
+ .expBackingStoreRaw = "wrap",
+ .expDirectory = datadir,
+ .expFormat = VIR_STORAGE_FILE_NONE,
+ .expIsFile = true,
+ .expCapacity = 1024,
+ };
+
#if HAVE_SYMLINK
const testFileData link1_rel = {
.expBackingStore = canonraw,
@@ -590,6 +643,18 @@ mymain(void)
(&raw), EXP_PASS,
(&qed, &raw), ALLOW_PROBE | EXP_PASS);
+ /* directory */
+ TEST_CHAIN(13, "dir", absdir, VIR_STORAGE_FILE_AUTO,
+ (&dir), EXP_PASS,
+ (&dir), ALLOW_PROBE | EXP_PASS,
+ (&dir), EXP_PASS,
+ (&dir), ALLOW_PROBE | EXP_PASS);
+ TEST_CHAIN(14, "dir", absdir, VIR_STORAGE_FILE_DIR,
+ (&dir), EXP_PASS,
+ (&dir), ALLOW_PROBE | EXP_PASS,
+ (&dir), EXP_PASS,
+ (&dir), ALLOW_PROBE | EXP_PASS);
+
#ifdef HAVE_SYMLINK
/* Rewrite qcow2 and wrap file to use backing names relative to a
* symlink from a different directory */
@@ -607,12 +672,47 @@ mymain(void)
ret = -1;
/* Behavior of symlinks to qcow2 with relative backing files */
- TEST_CHAIN(13, "sub/link2", abslink2, VIR_STORAGE_FILE_QCOW2,
+ TEST_CHAIN(15, "sub/link2", abslink2, VIR_STORAGE_FILE_QCOW2,
(&link2_rel, &link1_rel, &raw), EXP_PASS,
(&link2_rel, &link1_rel, &raw), ALLOW_PROBE | EXP_PASS,
(&link2_abs, &link1_abs, &raw), EXP_PASS,
(&link2_abs, &link1_abs, &raw), ALLOW_PROBE | EXP_PASS);
#endif
+
+ /* Rewrite qcow2 to be a self-referential loop */
+ virCommandFree(cmd);
+ cmd = virCommandNewArgList(qemuimg, "rebase", "-u", "-f", "qcow2",
+ "-F", "qcow2", "-b", "qcow2", "qcow2", NULL);
+ if (virCommandRun(cmd, NULL) < 0)
+ ret = -1;
+
+ /* Behavior of an infinite loop chain */
+ TEST_CHAIN(16, "qcow2", absqcow2, VIR_STORAGE_FILE_QCOW2,
+ (&qcow2_loop1_rel), EXP_WARN,
+ (&qcow2_loop1_rel), ALLOW_PROBE | EXP_WARN,
+ (&qcow2_loop1_abs), EXP_WARN,
+ (&qcow2_loop1_abs), ALLOW_PROBE | EXP_WARN);
+
+ /* Rewrite wrap and qcow2 to be mutually-referential loop */
+ virCommandFree(cmd);
+ cmd = virCommandNewArgList(qemuimg, "rebase", "-u", "-f", "qcow2",
+ "-F", "qcow2", "-b", "wrap", "qcow2", NULL);
+ if (virCommandRun(cmd, NULL) < 0)
+ ret = -1;
+
+ virCommandFree(cmd);
+ cmd = virCommandNewArgList(qemuimg, "rebase", "-u", "-f", "qcow2",
+ "-F", "qcow2", "-b", absqcow2, "wrap", NULL);
+ if (virCommandRun(cmd, NULL) < 0)
+ ret = -1;
+
+ /* Behavior of an infinite loop chain */
+ TEST_CHAIN(17, "wrap", abswrap, VIR_STORAGE_FILE_QCOW2,
+ (&wrap, &qcow2_loop2_rel), EXP_WARN,
+ (&wrap, &qcow2_loop2_rel), ALLOW_PROBE | EXP_WARN,
+ (&wrap, &qcow2_loop2_abs), EXP_WARN,
+ (&wrap, &qcow2_loop2_abs), ALLOW_PROBE | EXP_WARN);
+
/* Final cleanup */
testCleanupImages();
virCommandFree(cmd);
--
1.9.0
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