namespaces: ensure that tests actually fail

Signed-off-by: Stephen J Day <stephen.day@docker.com>

namespaces/validate_test.go

@@ -8,89 +8,71 @@ import (
 
 func TestValidNamespaces(t *testing.T) {
 	for _, testcase := range []struct {
-		name  string
 		input string
 		err   error
 	}{
 		{
-			name:  "Default",
 			input: "default",
 		},
 		{
-			name:  "Hyphen",
 			input: "default-default",
 		},
 		{
-			name:  "DoubleHyphen",
 			input: "default--default",
 		},
 		{
-			name:  "containerD",
 			input: "containerd.io",
 		},
 		{
-			name:  "SwarmKit",
+			input: "foo.boo",
+		},
+		{
 			input: "swarmkit.docker.io",
 		},
 		{
-			name:  "Punycode",
 			input: "zn--e9.org", // or something like it!
 		},
 		{
-			name:  "LeadingPeriod",
 			input: ".foo..foo",
 			err:   errNamespaceInvalid,
 		},
 		{
-			name:  "Path",
 			input: "foo/foo",
 			err:   errNamespaceInvalid,
 		},
 		{
-			name:  "ParentDir",
 			input: "foo/..",
 			err:   errNamespaceInvalid,
 		},
 		{
-			name:  "RepeatedPeriod",
 			input: "foo..foo",
 			err:   errNamespaceInvalid,
 		},
 		{
-			name:  "OutOfPlaceHyphenEmbedded",
 			input: "foo.-boo",
 			err:   errNamespaceInvalid,
 		},
 		{
-			name:  "OutOfPlaceHyphen",
 			input: "-foo.boo",
 			err:   errNamespaceInvalid,
 		},
 		{
-			name:  "OutOfPlaceHyphenEnd",
-			input: "foo.boo",
+			input: "foo.boo-",
 			err:   errNamespaceInvalid,
 		},
 		{
-			name:  "Underscores",
 			input: "foo_foo.boo_underscores", // boo-urns?
 			err:   errNamespaceInvalid,
 		},
 	} {
-		t.Run(testcase.name, func(t *testing.T) {
-			if err := Validate(testcase.input); err != nil {
-				if errors.Cause(err) != testcase.err {
-					if testcase.err == nil {
-						t.Fatalf("unexpected error: %v != nil", err)
-					} else {
-						t.Fatalf("expected error %v to be %v", err, testcase.err)
-					}
+		t.Run(testcase.input, func(t *testing.T) {
+			if err := Validate(testcase.input); errors.Cause(err) != testcase.err {
+				t.Log(errors.Cause(err), testcase.err)
+				if testcase.err == nil {
+					t.Fatalf("unexpected error: %v != nil", err)
 				} else {
-					t.Logf("invalid %q detected as invalid: %v", testcase.input, err)
-					return
+					t.Fatalf("expected error %v to be %v", err, testcase.err)
 				}
-
-				t.Logf("%q is a valid namespace", testcase.input)
 			}
 		})
 	}