Add uppercase versions of "testN" tags to help test "case-insensitive alphanumeric order"

Signed-off-by: Tianon Gravi <admwiggin@gmail.com>

Author: tianon

conformance/03_discovery_test.go

@@ -62,17 +62,18 @@ var test03ContentDiscovery = func() {
 				SkipIfDisabled(contentDiscovery)
 				RunOnlyIf(runContentDiscoverySetup)
 				for i := 0; i < numTags; i++ {
-					tag := fmt.Sprintf("test%d", i)
-					tagList = append(tagList, tag)
-					req := client.NewRequest(reggie.PUT, "/v2/<name>/manifests/<reference>",
-						reggie.WithReference(tag)).
-						SetHeader("Content-Type", "application/vnd.oci.image.manifest.v1+json").
-						SetBody(manifests[2].Content)
-					resp, err := client.Do(req)
-					Expect(err).To(BeNil())
-					Expect(resp.StatusCode()).To(SatisfyAll(
-						BeNumerically(">=", 200),
-						BeNumerically("<", 300)))
+					for _, tag := range []string{"test" + strconv.Itoa(i), "TEST" + strconv.Itoa(i)} {
+						tagList = append(tagList, tag)
+						req := client.NewRequest(reggie.PUT, "/v2/<name>/manifests/<reference>",
+							reggie.WithReference(tag)).
+							SetHeader("Content-Type", "application/vnd.oci.image.manifest.v1+json").
+							SetBody(manifests[2].Content)
+						resp, err := client.Do(req)
+						Expect(err).To(BeNil())
+						Expect(resp.StatusCode()).To(SatisfyAll(
+							BeNumerically(">=", 200),
+							BeNumerically("<", 300)))
+					}
 				}
 				req := client.NewRequest(reggie.GET, "/v2/<name>/tags/list")
 				resp, err := client.Do(req)