dashboard/app: improve test names in TestUserAccessLevel

The test uses test names with spaces, testing package replaces spaces with _.
As the result, it's impossible to search for failed tests, and they all look
very similar. Replace space with _, so that it's possible to search for failed tests.

Author: dvyukov

dashboard/app/access_test.go

@@ -486,104 +486,104 @@ func TestUserAccessLevel(t *testing.T) {
 		wantIsAuthorized    bool
 	}{
 		{
-			name:            "wrong auth domain",
+			name:            "wrong_auth_domain",
 			u:               makeUser(BadAuthDomain),
 			wantAccessLevel: AccessPublic,
 		},
 		{
-			name:            "regular not authenticated user",
+			name:            "regular_not_authenticated_user",
 			u:               makeUser(Regular),
 			wantAccessLevel: AccessPublic,
 		},
 		{
-			name:                "regular not authenticated user wants to be an admin",
+			name:                "regular_not_authenticated_user_wants_to_be_an_admin",
 			u:                   makeUser(Regular),
 			enforcedAccessLevel: "admin",
 			config:              testConfig,
 			wantAccessLevel:     AccessPublic,
 		},
 		{
-			name:                "regular not authenticated user wants to be a user",
+			name:                "regular_not_authenticated_user_wants_to_be_a_user",
 			u:                   makeUser(Regular),
 			enforcedAccessLevel: "user",
 			config:              testConfig,
 			wantAccessLevel:     AccessPublic,
 		},
 		{
-			name:            "authenticated, not authorized user",
+			name:            "authenticated_not_authorized_user",
 			u:               makeUser(Authenticated),
 			config:          testConfig,
 			wantAccessLevel: AccessPublic,
 		},
 		{
-			name:                "authenticated, not authorized user wants to be an admin",
+			name:                "authenticated_not_authorized_user_wants_to_be_an_admin",
 			u:                   makeUser(Authenticated),
 			enforcedAccessLevel: "admin",
 			config:              testConfig,
 			wantAccessLevel:     AccessPublic,
 		},
 		{
-			name:                "authenticated, not authorized user wants to be a user",
+			name:                "authenticated_not_authorized_user_wants_to_be_a_user",
 			u:                   makeUser(Authenticated),
 			enforcedAccessLevel: "user",
 			config:              testConfig,
 			wantAccessLevel:     AccessPublic,
 		},
 		{
-			name:             "authorized for AccessPublic user",
+			name:             "authorized_for_AccessPublic_user",
 			u:                makeUser(AuthorizedAccessPublic),
 			config:           testConfig,
 			wantAccessLevel:  AccessPublic,
 			wantIsAuthorized: true,
 		},
 		{
-			name:                "authorized for AccessPublic user wants to be an admin",
+			name:                "authorized_for_AccessPublic_user_wants_to_be_an_admin",
 			u:                   makeUser(AuthorizedAccessPublic),
 			enforcedAccessLevel: "admin",
 			config:              testConfig,
 			wantAccessLevel:     AccessPublic,
 			wantIsAuthorized:    true,
 		},
 		{
-			name:                "authorized for AccessPublic user wants to be a user",
+			name:                "authorized_for_AccessPublic_user_wants_to_be_a_user",
 			u:                   makeUser(AuthorizedAccessPublic),
 			enforcedAccessLevel: "user",
 			config:              testConfig,
 			wantAccessLevel:     AccessPublic,
 			wantIsAuthorized:    true,
 		},
 		{
-			name:             "authorized for AccessUser user",
+			name:             "authorized_for_AccessUser_user",
 			u:                makeUser(AuthorizedUser),
 			config:           testConfig,
 			wantAccessLevel:  AccessUser,
 			wantIsAuthorized: true,
 		},
 		{
-			name:                "authorized for AccessUser user wants to be an admin",
+			name:                "authorized_for_AccessUser_user_wants_to_be_an_admin",
 			u:                   makeUser(AuthorizedUser),
 			enforcedAccessLevel: "admin",
 			config:              testConfig,
 			wantAccessLevel:     AccessUser,
 			wantIsAuthorized:    true,
 		},
 		{
-			name:             "authorized admin wants AccessAdmin",
+			name:             "authorized_admin_wants_AccessAdmin",
 			u:                makeUser(AuthorizedAdmin),
 			config:           testConfig,
 			wantAccessLevel:  AccessAdmin,
 			wantIsAuthorized: true,
 		},
 		{
-			name:                "authorized admin wants AccessPublic",
+			name:                "authorized_admin_wants_AccessPublic",
 			u:                   makeUser(AuthorizedAdmin),
 			enforcedAccessLevel: "public",
 			config:              testConfig,
 			wantAccessLevel:     AccessPublic,
 			wantIsAuthorized:    true,
 		},
 		{
-			name:                "authorized admin wants AccessUser",
+			name:                "authorized_admin_wants_AccessUser",
 			u:                   makeUser(AuthorizedAdmin),
 			enforcedAccessLevel: "user",
 			config:              testConfig,