From b3c002197a1309d4ca80cc28ad5c6cc8894cfb8e Mon Sep 17 00:00:00 2001
From: Phil Hughes <me@iamphill.com>
Date: Mon, 10 Jun 2024 11:47:04 +0100
Subject: [PATCH] Updated label GraphQL param name for merge request

Added a new param for labels that matches what the issues GraphQL query uses
this is to make the frontend easier to work with so that we can re-use
the GraphQL frontend code from issues.

https://gitlab.com/gitlab-org/gitlab/-/issues/466261
---
 .../resolvers/merge_requests_resolver.rb      |  6 +-
 doc/api/graphql/reference/index.md            | 87 ++++++++++++-------
 .../project_merge_requests_resolver_spec.rb   | 12 ++-
 spec/graphql/types/project_type_spec.rb       |  1 +
 4 files changed, 75 insertions(+), 31 deletions(-)

diff --git a/app/graphql/resolvers/merge_requests_resolver.rb b/app/graphql/resolvers/merge_requests_resolver.rb
index fec852b6c1ecc3..7e46644950205a 100644
--- a/app/graphql/resolvers/merge_requests_resolver.rb
+++ b/app/graphql/resolvers/merge_requests_resolver.rb
@@ -87,10 +87,14 @@ def self.accept_reviewer
       required: false,
       description: 'Merge requests updated before the timestamp.'
 
+    argument :label_name, [GraphQL::Types::String, { null: true }],
+      required: false,
+      description: 'Labels applied to the merge request.'
     argument :labels, [GraphQL::Types::String],
       required: false,
       as: :label_name,
-      description: 'Array of label names. All resolved merge requests will have all of these labels.'
+      description: 'Array of label names. All resolved merge requests will have all of these labels.',
+      deprecated: { reason: 'Use `labelName`', milestone: '17.1' }
     argument :merged_after, Types::TimeType,
       required: false,
       description: 'Merge requests merged after the date.'
diff --git a/doc/api/graphql/reference/index.md b/doc/api/graphql/reference/index.md
index a17842b1f5289a..8a2191c520b091 100644
--- a/doc/api/graphql/reference/index.md
+++ b/doc/api/graphql/reference/index.md
@@ -15986,7 +15986,8 @@ four standard [pagination arguments](#pagination-arguments):
 | <a id="addonuserassignedmergerequestsdraft"></a>`draft` | [`Boolean`](#boolean) | Limit result to draft merge requests. |
 | <a id="addonuserassignedmergerequestsgroupid"></a>`groupId` | [`GroupID`](#groupid) | The global ID of the group the authored merge requests should be in. Merge requests in subgroups are included. |
 | <a id="addonuserassignedmergerequestsiids"></a>`iids` | [`[String!]`](#string) | Array of IIDs of merge requests, for example `[1, 2]`. |
-| <a id="addonuserassignedmergerequestslabels"></a>`labels` | [`[String!]`](#string) | Array of label names. All resolved merge requests will have all of these labels. |
+| <a id="addonuserassignedmergerequestslabelname"></a>`labelName` | [`[String]`](#string) | Labels applied to the merge request. |
+| <a id="addonuserassignedmergerequestslabels"></a>`labels` **{warning-solid}** | [`[String!]`](#string) | **Deprecated** in GitLab 17.1. Use `labelName`. |
 | <a id="addonuserassignedmergerequestsmergedafter"></a>`mergedAfter` | [`Time`](#time) | Merge requests merged after the date. |
 | <a id="addonuserassignedmergerequestsmergedbefore"></a>`mergedBefore` | [`Time`](#time) | Merge requests merged before the date. |
 | <a id="addonuserassignedmergerequestsmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Title of the milestone. Incompatible with milestoneWildcardId. |
@@ -16029,7 +16030,8 @@ four standard [pagination arguments](#pagination-arguments):
 | <a id="addonuserauthoredmergerequestsdraft"></a>`draft` | [`Boolean`](#boolean) | Limit result to draft merge requests. |
 | <a id="addonuserauthoredmergerequestsgroupid"></a>`groupId` | [`GroupID`](#groupid) | The global ID of the group the authored merge requests should be in. Merge requests in subgroups are included. |
 | <a id="addonuserauthoredmergerequestsiids"></a>`iids` | [`[String!]`](#string) | Array of IIDs of merge requests, for example `[1, 2]`. |
-| <a id="addonuserauthoredmergerequestslabels"></a>`labels` | [`[String!]`](#string) | Array of label names. All resolved merge requests will have all of these labels. |
+| <a id="addonuserauthoredmergerequestslabelname"></a>`labelName` | [`[String]`](#string) | Labels applied to the merge request. |
+| <a id="addonuserauthoredmergerequestslabels"></a>`labels` **{warning-solid}** | [`[String!]`](#string) | **Deprecated** in GitLab 17.1. Use `labelName`. |
 | <a id="addonuserauthoredmergerequestsmergedafter"></a>`mergedAfter` | [`Time`](#time) | Merge requests merged after the date. |
 | <a id="addonuserauthoredmergerequestsmergedbefore"></a>`mergedBefore` | [`Time`](#time) | Merge requests merged before the date. |
 | <a id="addonuserauthoredmergerequestsmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Title of the milestone. Incompatible with milestoneWildcardId. |
@@ -16126,7 +16128,8 @@ four standard [pagination arguments](#pagination-arguments):
 | <a id="addonuserreviewrequestedmergerequestsdraft"></a>`draft` | [`Boolean`](#boolean) | Limit result to draft merge requests. |
 | <a id="addonuserreviewrequestedmergerequestsgroupid"></a>`groupId` | [`GroupID`](#groupid) | The global ID of the group the authored merge requests should be in. Merge requests in subgroups are included. |
 | <a id="addonuserreviewrequestedmergerequestsiids"></a>`iids` | [`[String!]`](#string) | Array of IIDs of merge requests, for example `[1, 2]`. |
-| <a id="addonuserreviewrequestedmergerequestslabels"></a>`labels` | [`[String!]`](#string) | Array of label names. All resolved merge requests will have all of these labels. |
+| <a id="addonuserreviewrequestedmergerequestslabelname"></a>`labelName` | [`[String]`](#string) | Labels applied to the merge request. |
+| <a id="addonuserreviewrequestedmergerequestslabels"></a>`labels` **{warning-solid}** | [`[String!]`](#string) | **Deprecated** in GitLab 17.1. Use `labelName`. |
 | <a id="addonuserreviewrequestedmergerequestsmergedafter"></a>`mergedAfter` | [`Time`](#time) | Merge requests merged after the date. |
 | <a id="addonuserreviewrequestedmergerequestsmergedbefore"></a>`mergedBefore` | [`Time`](#time) | Merge requests merged before the date. |
 | <a id="addonuserreviewrequestedmergerequestsmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Title of the milestone. Incompatible with milestoneWildcardId. |
@@ -16794,7 +16797,8 @@ four standard [pagination arguments](#pagination-arguments):
 | <a id="autocompleteduserassignedmergerequestsdraft"></a>`draft` | [`Boolean`](#boolean) | Limit result to draft merge requests. |
 | <a id="autocompleteduserassignedmergerequestsgroupid"></a>`groupId` | [`GroupID`](#groupid) | The global ID of the group the authored merge requests should be in. Merge requests in subgroups are included. |
 | <a id="autocompleteduserassignedmergerequestsiids"></a>`iids` | [`[String!]`](#string) | Array of IIDs of merge requests, for example `[1, 2]`. |
-| <a id="autocompleteduserassignedmergerequestslabels"></a>`labels` | [`[String!]`](#string) | Array of label names. All resolved merge requests will have all of these labels. |
+| <a id="autocompleteduserassignedmergerequestslabelname"></a>`labelName` | [`[String]`](#string) | Labels applied to the merge request. |
+| <a id="autocompleteduserassignedmergerequestslabels"></a>`labels` **{warning-solid}** | [`[String!]`](#string) | **Deprecated** in GitLab 17.1. Use `labelName`. |
 | <a id="autocompleteduserassignedmergerequestsmergedafter"></a>`mergedAfter` | [`Time`](#time) | Merge requests merged after the date. |
 | <a id="autocompleteduserassignedmergerequestsmergedbefore"></a>`mergedBefore` | [`Time`](#time) | Merge requests merged before the date. |
 | <a id="autocompleteduserassignedmergerequestsmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Title of the milestone. Incompatible with milestoneWildcardId. |
@@ -16837,7 +16841,8 @@ four standard [pagination arguments](#pagination-arguments):
 | <a id="autocompleteduserauthoredmergerequestsdraft"></a>`draft` | [`Boolean`](#boolean) | Limit result to draft merge requests. |
 | <a id="autocompleteduserauthoredmergerequestsgroupid"></a>`groupId` | [`GroupID`](#groupid) | The global ID of the group the authored merge requests should be in. Merge requests in subgroups are included. |
 | <a id="autocompleteduserauthoredmergerequestsiids"></a>`iids` | [`[String!]`](#string) | Array of IIDs of merge requests, for example `[1, 2]`. |
-| <a id="autocompleteduserauthoredmergerequestslabels"></a>`labels` | [`[String!]`](#string) | Array of label names. All resolved merge requests will have all of these labels. |
+| <a id="autocompleteduserauthoredmergerequestslabelname"></a>`labelName` | [`[String]`](#string) | Labels applied to the merge request. |
+| <a id="autocompleteduserauthoredmergerequestslabels"></a>`labels` **{warning-solid}** | [`[String!]`](#string) | **Deprecated** in GitLab 17.1. Use `labelName`. |
 | <a id="autocompleteduserauthoredmergerequestsmergedafter"></a>`mergedAfter` | [`Time`](#time) | Merge requests merged after the date. |
 | <a id="autocompleteduserauthoredmergerequestsmergedbefore"></a>`mergedBefore` | [`Time`](#time) | Merge requests merged before the date. |
 | <a id="autocompleteduserauthoredmergerequestsmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Title of the milestone. Incompatible with milestoneWildcardId. |
@@ -16946,7 +16951,8 @@ four standard [pagination arguments](#pagination-arguments):
 | <a id="autocompleteduserreviewrequestedmergerequestsdraft"></a>`draft` | [`Boolean`](#boolean) | Limit result to draft merge requests. |
 | <a id="autocompleteduserreviewrequestedmergerequestsgroupid"></a>`groupId` | [`GroupID`](#groupid) | The global ID of the group the authored merge requests should be in. Merge requests in subgroups are included. |
 | <a id="autocompleteduserreviewrequestedmergerequestsiids"></a>`iids` | [`[String!]`](#string) | Array of IIDs of merge requests, for example `[1, 2]`. |
-| <a id="autocompleteduserreviewrequestedmergerequestslabels"></a>`labels` | [`[String!]`](#string) | Array of label names. All resolved merge requests will have all of these labels. |
+| <a id="autocompleteduserreviewrequestedmergerequestslabelname"></a>`labelName` | [`[String]`](#string) | Labels applied to the merge request. |
+| <a id="autocompleteduserreviewrequestedmergerequestslabels"></a>`labels` **{warning-solid}** | [`[String!]`](#string) | **Deprecated** in GitLab 17.1. Use `labelName`. |
 | <a id="autocompleteduserreviewrequestedmergerequestsmergedafter"></a>`mergedAfter` | [`Time`](#time) | Merge requests merged after the date. |
 | <a id="autocompleteduserreviewrequestedmergerequestsmergedbefore"></a>`mergedBefore` | [`Time`](#time) | Merge requests merged before the date. |
 | <a id="autocompleteduserreviewrequestedmergerequestsmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Title of the milestone. Incompatible with milestoneWildcardId. |
@@ -18990,7 +18996,8 @@ four standard [pagination arguments](#pagination-arguments):
 | <a id="currentuserassignedmergerequestsdraft"></a>`draft` | [`Boolean`](#boolean) | Limit result to draft merge requests. |
 | <a id="currentuserassignedmergerequestsgroupid"></a>`groupId` | [`GroupID`](#groupid) | The global ID of the group the authored merge requests should be in. Merge requests in subgroups are included. |
 | <a id="currentuserassignedmergerequestsiids"></a>`iids` | [`[String!]`](#string) | Array of IIDs of merge requests, for example `[1, 2]`. |
-| <a id="currentuserassignedmergerequestslabels"></a>`labels` | [`[String!]`](#string) | Array of label names. All resolved merge requests will have all of these labels. |
+| <a id="currentuserassignedmergerequestslabelname"></a>`labelName` | [`[String]`](#string) | Labels applied to the merge request. |
+| <a id="currentuserassignedmergerequestslabels"></a>`labels` **{warning-solid}** | [`[String!]`](#string) | **Deprecated** in GitLab 17.1. Use `labelName`. |
 | <a id="currentuserassignedmergerequestsmergedafter"></a>`mergedAfter` | [`Time`](#time) | Merge requests merged after the date. |
 | <a id="currentuserassignedmergerequestsmergedbefore"></a>`mergedBefore` | [`Time`](#time) | Merge requests merged before the date. |
 | <a id="currentuserassignedmergerequestsmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Title of the milestone. Incompatible with milestoneWildcardId. |
@@ -19033,7 +19040,8 @@ four standard [pagination arguments](#pagination-arguments):
 | <a id="currentuserauthoredmergerequestsdraft"></a>`draft` | [`Boolean`](#boolean) | Limit result to draft merge requests. |
 | <a id="currentuserauthoredmergerequestsgroupid"></a>`groupId` | [`GroupID`](#groupid) | The global ID of the group the authored merge requests should be in. Merge requests in subgroups are included. |
 | <a id="currentuserauthoredmergerequestsiids"></a>`iids` | [`[String!]`](#string) | Array of IIDs of merge requests, for example `[1, 2]`. |
-| <a id="currentuserauthoredmergerequestslabels"></a>`labels` | [`[String!]`](#string) | Array of label names. All resolved merge requests will have all of these labels. |
+| <a id="currentuserauthoredmergerequestslabelname"></a>`labelName` | [`[String]`](#string) | Labels applied to the merge request. |
+| <a id="currentuserauthoredmergerequestslabels"></a>`labels` **{warning-solid}** | [`[String!]`](#string) | **Deprecated** in GitLab 17.1. Use `labelName`. |
 | <a id="currentuserauthoredmergerequestsmergedafter"></a>`mergedAfter` | [`Time`](#time) | Merge requests merged after the date. |
 | <a id="currentuserauthoredmergerequestsmergedbefore"></a>`mergedBefore` | [`Time`](#time) | Merge requests merged before the date. |
 | <a id="currentuserauthoredmergerequestsmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Title of the milestone. Incompatible with milestoneWildcardId. |
@@ -19130,7 +19138,8 @@ four standard [pagination arguments](#pagination-arguments):
 | <a id="currentuserreviewrequestedmergerequestsdraft"></a>`draft` | [`Boolean`](#boolean) | Limit result to draft merge requests. |
 | <a id="currentuserreviewrequestedmergerequestsgroupid"></a>`groupId` | [`GroupID`](#groupid) | The global ID of the group the authored merge requests should be in. Merge requests in subgroups are included. |
 | <a id="currentuserreviewrequestedmergerequestsiids"></a>`iids` | [`[String!]`](#string) | Array of IIDs of merge requests, for example `[1, 2]`. |
-| <a id="currentuserreviewrequestedmergerequestslabels"></a>`labels` | [`[String!]`](#string) | Array of label names. All resolved merge requests will have all of these labels. |
+| <a id="currentuserreviewrequestedmergerequestslabelname"></a>`labelName` | [`[String]`](#string) | Labels applied to the merge request. |
+| <a id="currentuserreviewrequestedmergerequestslabels"></a>`labels` **{warning-solid}** | [`[String!]`](#string) | **Deprecated** in GitLab 17.1. Use `labelName`. |
 | <a id="currentuserreviewrequestedmergerequestsmergedafter"></a>`mergedAfter` | [`Time`](#time) | Merge requests merged after the date. |
 | <a id="currentuserreviewrequestedmergerequestsmergedbefore"></a>`mergedBefore` | [`Time`](#time) | Merge requests merged before the date. |
 | <a id="currentuserreviewrequestedmergerequestsmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Title of the milestone. Incompatible with milestoneWildcardId. |
@@ -22336,7 +22345,8 @@ four standard [pagination arguments](#pagination-arguments):
 | <a id="groupmergerequestsiids"></a>`iids` | [`[String!]`](#string) | Array of IIDs of merge requests, for example `[1, 2]`. |
 | <a id="groupmergerequestsincludearchived"></a>`includeArchived` | [`Boolean`](#boolean) | Return merge requests from archived projects. |
 | <a id="groupmergerequestsincludesubgroups"></a>`includeSubgroups` | [`Boolean`](#boolean) | Include merge requests belonging to subgroups. |
-| <a id="groupmergerequestslabels"></a>`labels` | [`[String!]`](#string) | Array of label names. All resolved merge requests will have all of these labels. |
+| <a id="groupmergerequestslabelname"></a>`labelName` | [`[String]`](#string) | Labels applied to the merge request. |
+| <a id="groupmergerequestslabels"></a>`labels` **{warning-solid}** | [`[String!]`](#string) | **Deprecated** in GitLab 17.1. Use `labelName`. |
 | <a id="groupmergerequestsmergedafter"></a>`mergedAfter` | [`Time`](#time) | Merge requests merged after the date. |
 | <a id="groupmergerequestsmergedbefore"></a>`mergedBefore` | [`Time`](#time) | Merge requests merged before the date. |
 | <a id="groupmergerequestsmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Title of the milestone. Incompatible with milestoneWildcardId. |
@@ -24304,7 +24314,8 @@ four standard [pagination arguments](#pagination-arguments):
 | <a id="mergerequestassigneeassignedmergerequestsdraft"></a>`draft` | [`Boolean`](#boolean) | Limit result to draft merge requests. |
 | <a id="mergerequestassigneeassignedmergerequestsgroupid"></a>`groupId` | [`GroupID`](#groupid) | The global ID of the group the authored merge requests should be in. Merge requests in subgroups are included. |
 | <a id="mergerequestassigneeassignedmergerequestsiids"></a>`iids` | [`[String!]`](#string) | Array of IIDs of merge requests, for example `[1, 2]`. |
-| <a id="mergerequestassigneeassignedmergerequestslabels"></a>`labels` | [`[String!]`](#string) | Array of label names. All resolved merge requests will have all of these labels. |
+| <a id="mergerequestassigneeassignedmergerequestslabelname"></a>`labelName` | [`[String]`](#string) | Labels applied to the merge request. |
+| <a id="mergerequestassigneeassignedmergerequestslabels"></a>`labels` **{warning-solid}** | [`[String!]`](#string) | **Deprecated** in GitLab 17.1. Use `labelName`. |
 | <a id="mergerequestassigneeassignedmergerequestsmergedafter"></a>`mergedAfter` | [`Time`](#time) | Merge requests merged after the date. |
 | <a id="mergerequestassigneeassignedmergerequestsmergedbefore"></a>`mergedBefore` | [`Time`](#time) | Merge requests merged before the date. |
 | <a id="mergerequestassigneeassignedmergerequestsmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Title of the milestone. Incompatible with milestoneWildcardId. |
@@ -24347,7 +24358,8 @@ four standard [pagination arguments](#pagination-arguments):
 | <a id="mergerequestassigneeauthoredmergerequestsdraft"></a>`draft` | [`Boolean`](#boolean) | Limit result to draft merge requests. |
 | <a id="mergerequestassigneeauthoredmergerequestsgroupid"></a>`groupId` | [`GroupID`](#groupid) | The global ID of the group the authored merge requests should be in. Merge requests in subgroups are included. |
 | <a id="mergerequestassigneeauthoredmergerequestsiids"></a>`iids` | [`[String!]`](#string) | Array of IIDs of merge requests, for example `[1, 2]`. |
-| <a id="mergerequestassigneeauthoredmergerequestslabels"></a>`labels` | [`[String!]`](#string) | Array of label names. All resolved merge requests will have all of these labels. |
+| <a id="mergerequestassigneeauthoredmergerequestslabelname"></a>`labelName` | [`[String]`](#string) | Labels applied to the merge request. |
+| <a id="mergerequestassigneeauthoredmergerequestslabels"></a>`labels` **{warning-solid}** | [`[String!]`](#string) | **Deprecated** in GitLab 17.1. Use `labelName`. |
 | <a id="mergerequestassigneeauthoredmergerequestsmergedafter"></a>`mergedAfter` | [`Time`](#time) | Merge requests merged after the date. |
 | <a id="mergerequestassigneeauthoredmergerequestsmergedbefore"></a>`mergedBefore` | [`Time`](#time) | Merge requests merged before the date. |
 | <a id="mergerequestassigneeauthoredmergerequestsmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Title of the milestone. Incompatible with milestoneWildcardId. |
@@ -24444,7 +24456,8 @@ four standard [pagination arguments](#pagination-arguments):
 | <a id="mergerequestassigneereviewrequestedmergerequestsdraft"></a>`draft` | [`Boolean`](#boolean) | Limit result to draft merge requests. |
 | <a id="mergerequestassigneereviewrequestedmergerequestsgroupid"></a>`groupId` | [`GroupID`](#groupid) | The global ID of the group the authored merge requests should be in. Merge requests in subgroups are included. |
 | <a id="mergerequestassigneereviewrequestedmergerequestsiids"></a>`iids` | [`[String!]`](#string) | Array of IIDs of merge requests, for example `[1, 2]`. |
-| <a id="mergerequestassigneereviewrequestedmergerequestslabels"></a>`labels` | [`[String!]`](#string) | Array of label names. All resolved merge requests will have all of these labels. |
+| <a id="mergerequestassigneereviewrequestedmergerequestslabelname"></a>`labelName` | [`[String]`](#string) | Labels applied to the merge request. |
+| <a id="mergerequestassigneereviewrequestedmergerequestslabels"></a>`labels` **{warning-solid}** | [`[String!]`](#string) | **Deprecated** in GitLab 17.1. Use `labelName`. |
 | <a id="mergerequestassigneereviewrequestedmergerequestsmergedafter"></a>`mergedAfter` | [`Time`](#time) | Merge requests merged after the date. |
 | <a id="mergerequestassigneereviewrequestedmergerequestsmergedbefore"></a>`mergedBefore` | [`Time`](#time) | Merge requests merged before the date. |
 | <a id="mergerequestassigneereviewrequestedmergerequestsmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Title of the milestone. Incompatible with milestoneWildcardId. |
@@ -24644,7 +24657,8 @@ four standard [pagination arguments](#pagination-arguments):
 | <a id="mergerequestauthorassignedmergerequestsdraft"></a>`draft` | [`Boolean`](#boolean) | Limit result to draft merge requests. |
 | <a id="mergerequestauthorassignedmergerequestsgroupid"></a>`groupId` | [`GroupID`](#groupid) | The global ID of the group the authored merge requests should be in. Merge requests in subgroups are included. |
 | <a id="mergerequestauthorassignedmergerequestsiids"></a>`iids` | [`[String!]`](#string) | Array of IIDs of merge requests, for example `[1, 2]`. |
-| <a id="mergerequestauthorassignedmergerequestslabels"></a>`labels` | [`[String!]`](#string) | Array of label names. All resolved merge requests will have all of these labels. |
+| <a id="mergerequestauthorassignedmergerequestslabelname"></a>`labelName` | [`[String]`](#string) | Labels applied to the merge request. |
+| <a id="mergerequestauthorassignedmergerequestslabels"></a>`labels` **{warning-solid}** | [`[String!]`](#string) | **Deprecated** in GitLab 17.1. Use `labelName`. |
 | <a id="mergerequestauthorassignedmergerequestsmergedafter"></a>`mergedAfter` | [`Time`](#time) | Merge requests merged after the date. |
 | <a id="mergerequestauthorassignedmergerequestsmergedbefore"></a>`mergedBefore` | [`Time`](#time) | Merge requests merged before the date. |
 | <a id="mergerequestauthorassignedmergerequestsmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Title of the milestone. Incompatible with milestoneWildcardId. |
@@ -24687,7 +24701,8 @@ four standard [pagination arguments](#pagination-arguments):
 | <a id="mergerequestauthorauthoredmergerequestsdraft"></a>`draft` | [`Boolean`](#boolean) | Limit result to draft merge requests. |
 | <a id="mergerequestauthorauthoredmergerequestsgroupid"></a>`groupId` | [`GroupID`](#groupid) | The global ID of the group the authored merge requests should be in. Merge requests in subgroups are included. |
 | <a id="mergerequestauthorauthoredmergerequestsiids"></a>`iids` | [`[String!]`](#string) | Array of IIDs of merge requests, for example `[1, 2]`. |
-| <a id="mergerequestauthorauthoredmergerequestslabels"></a>`labels` | [`[String!]`](#string) | Array of label names. All resolved merge requests will have all of these labels. |
+| <a id="mergerequestauthorauthoredmergerequestslabelname"></a>`labelName` | [`[String]`](#string) | Labels applied to the merge request. |
+| <a id="mergerequestauthorauthoredmergerequestslabels"></a>`labels` **{warning-solid}** | [`[String!]`](#string) | **Deprecated** in GitLab 17.1. Use `labelName`. |
 | <a id="mergerequestauthorauthoredmergerequestsmergedafter"></a>`mergedAfter` | [`Time`](#time) | Merge requests merged after the date. |
 | <a id="mergerequestauthorauthoredmergerequestsmergedbefore"></a>`mergedBefore` | [`Time`](#time) | Merge requests merged before the date. |
 | <a id="mergerequestauthorauthoredmergerequestsmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Title of the milestone. Incompatible with milestoneWildcardId. |
@@ -24784,7 +24799,8 @@ four standard [pagination arguments](#pagination-arguments):
 | <a id="mergerequestauthorreviewrequestedmergerequestsdraft"></a>`draft` | [`Boolean`](#boolean) | Limit result to draft merge requests. |
 | <a id="mergerequestauthorreviewrequestedmergerequestsgroupid"></a>`groupId` | [`GroupID`](#groupid) | The global ID of the group the authored merge requests should be in. Merge requests in subgroups are included. |
 | <a id="mergerequestauthorreviewrequestedmergerequestsiids"></a>`iids` | [`[String!]`](#string) | Array of IIDs of merge requests, for example `[1, 2]`. |
-| <a id="mergerequestauthorreviewrequestedmergerequestslabels"></a>`labels` | [`[String!]`](#string) | Array of label names. All resolved merge requests will have all of these labels. |
+| <a id="mergerequestauthorreviewrequestedmergerequestslabelname"></a>`labelName` | [`[String]`](#string) | Labels applied to the merge request. |
+| <a id="mergerequestauthorreviewrequestedmergerequestslabels"></a>`labels` **{warning-solid}** | [`[String!]`](#string) | **Deprecated** in GitLab 17.1. Use `labelName`. |
 | <a id="mergerequestauthorreviewrequestedmergerequestsmergedafter"></a>`mergedAfter` | [`Time`](#time) | Merge requests merged after the date. |
 | <a id="mergerequestauthorreviewrequestedmergerequestsmergedbefore"></a>`mergedBefore` | [`Time`](#time) | Merge requests merged before the date. |
 | <a id="mergerequestauthorreviewrequestedmergerequestsmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Title of the milestone. Incompatible with milestoneWildcardId. |
@@ -25031,7 +25047,8 @@ four standard [pagination arguments](#pagination-arguments):
 | <a id="mergerequestparticipantassignedmergerequestsdraft"></a>`draft` | [`Boolean`](#boolean) | Limit result to draft merge requests. |
 | <a id="mergerequestparticipantassignedmergerequestsgroupid"></a>`groupId` | [`GroupID`](#groupid) | The global ID of the group the authored merge requests should be in. Merge requests in subgroups are included. |
 | <a id="mergerequestparticipantassignedmergerequestsiids"></a>`iids` | [`[String!]`](#string) | Array of IIDs of merge requests, for example `[1, 2]`. |
-| <a id="mergerequestparticipantassignedmergerequestslabels"></a>`labels` | [`[String!]`](#string) | Array of label names. All resolved merge requests will have all of these labels. |
+| <a id="mergerequestparticipantassignedmergerequestslabelname"></a>`labelName` | [`[String]`](#string) | Labels applied to the merge request. |
+| <a id="mergerequestparticipantassignedmergerequestslabels"></a>`labels` **{warning-solid}** | [`[String!]`](#string) | **Deprecated** in GitLab 17.1. Use `labelName`. |
 | <a id="mergerequestparticipantassignedmergerequestsmergedafter"></a>`mergedAfter` | [`Time`](#time) | Merge requests merged after the date. |
 | <a id="mergerequestparticipantassignedmergerequestsmergedbefore"></a>`mergedBefore` | [`Time`](#time) | Merge requests merged before the date. |
 | <a id="mergerequestparticipantassignedmergerequestsmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Title of the milestone. Incompatible with milestoneWildcardId. |
@@ -25074,7 +25091,8 @@ four standard [pagination arguments](#pagination-arguments):
 | <a id="mergerequestparticipantauthoredmergerequestsdraft"></a>`draft` | [`Boolean`](#boolean) | Limit result to draft merge requests. |
 | <a id="mergerequestparticipantauthoredmergerequestsgroupid"></a>`groupId` | [`GroupID`](#groupid) | The global ID of the group the authored merge requests should be in. Merge requests in subgroups are included. |
 | <a id="mergerequestparticipantauthoredmergerequestsiids"></a>`iids` | [`[String!]`](#string) | Array of IIDs of merge requests, for example `[1, 2]`. |
-| <a id="mergerequestparticipantauthoredmergerequestslabels"></a>`labels` | [`[String!]`](#string) | Array of label names. All resolved merge requests will have all of these labels. |
+| <a id="mergerequestparticipantauthoredmergerequestslabelname"></a>`labelName` | [`[String]`](#string) | Labels applied to the merge request. |
+| <a id="mergerequestparticipantauthoredmergerequestslabels"></a>`labels` **{warning-solid}** | [`[String!]`](#string) | **Deprecated** in GitLab 17.1. Use `labelName`. |
 | <a id="mergerequestparticipantauthoredmergerequestsmergedafter"></a>`mergedAfter` | [`Time`](#time) | Merge requests merged after the date. |
 | <a id="mergerequestparticipantauthoredmergerequestsmergedbefore"></a>`mergedBefore` | [`Time`](#time) | Merge requests merged before the date. |
 | <a id="mergerequestparticipantauthoredmergerequestsmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Title of the milestone. Incompatible with milestoneWildcardId. |
@@ -25171,7 +25189,8 @@ four standard [pagination arguments](#pagination-arguments):
 | <a id="mergerequestparticipantreviewrequestedmergerequestsdraft"></a>`draft` | [`Boolean`](#boolean) | Limit result to draft merge requests. |
 | <a id="mergerequestparticipantreviewrequestedmergerequestsgroupid"></a>`groupId` | [`GroupID`](#groupid) | The global ID of the group the authored merge requests should be in. Merge requests in subgroups are included. |
 | <a id="mergerequestparticipantreviewrequestedmergerequestsiids"></a>`iids` | [`[String!]`](#string) | Array of IIDs of merge requests, for example `[1, 2]`. |
-| <a id="mergerequestparticipantreviewrequestedmergerequestslabels"></a>`labels` | [`[String!]`](#string) | Array of label names. All resolved merge requests will have all of these labels. |
+| <a id="mergerequestparticipantreviewrequestedmergerequestslabelname"></a>`labelName` | [`[String]`](#string) | Labels applied to the merge request. |
+| <a id="mergerequestparticipantreviewrequestedmergerequestslabels"></a>`labels` **{warning-solid}** | [`[String!]`](#string) | **Deprecated** in GitLab 17.1. Use `labelName`. |
 | <a id="mergerequestparticipantreviewrequestedmergerequestsmergedafter"></a>`mergedAfter` | [`Time`](#time) | Merge requests merged after the date. |
 | <a id="mergerequestparticipantreviewrequestedmergerequestsmergedbefore"></a>`mergedBefore` | [`Time`](#time) | Merge requests merged before the date. |
 | <a id="mergerequestparticipantreviewrequestedmergerequestsmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Title of the milestone. Incompatible with milestoneWildcardId. |
@@ -25407,7 +25426,8 @@ four standard [pagination arguments](#pagination-arguments):
 | <a id="mergerequestreviewerassignedmergerequestsdraft"></a>`draft` | [`Boolean`](#boolean) | Limit result to draft merge requests. |
 | <a id="mergerequestreviewerassignedmergerequestsgroupid"></a>`groupId` | [`GroupID`](#groupid) | The global ID of the group the authored merge requests should be in. Merge requests in subgroups are included. |
 | <a id="mergerequestreviewerassignedmergerequestsiids"></a>`iids` | [`[String!]`](#string) | Array of IIDs of merge requests, for example `[1, 2]`. |
-| <a id="mergerequestreviewerassignedmergerequestslabels"></a>`labels` | [`[String!]`](#string) | Array of label names. All resolved merge requests will have all of these labels. |
+| <a id="mergerequestreviewerassignedmergerequestslabelname"></a>`labelName` | [`[String]`](#string) | Labels applied to the merge request. |
+| <a id="mergerequestreviewerassignedmergerequestslabels"></a>`labels` **{warning-solid}** | [`[String!]`](#string) | **Deprecated** in GitLab 17.1. Use `labelName`. |
 | <a id="mergerequestreviewerassignedmergerequestsmergedafter"></a>`mergedAfter` | [`Time`](#time) | Merge requests merged after the date. |
 | <a id="mergerequestreviewerassignedmergerequestsmergedbefore"></a>`mergedBefore` | [`Time`](#time) | Merge requests merged before the date. |
 | <a id="mergerequestreviewerassignedmergerequestsmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Title of the milestone. Incompatible with milestoneWildcardId. |
@@ -25450,7 +25470,8 @@ four standard [pagination arguments](#pagination-arguments):
 | <a id="mergerequestreviewerauthoredmergerequestsdraft"></a>`draft` | [`Boolean`](#boolean) | Limit result to draft merge requests. |
 | <a id="mergerequestreviewerauthoredmergerequestsgroupid"></a>`groupId` | [`GroupID`](#groupid) | The global ID of the group the authored merge requests should be in. Merge requests in subgroups are included. |
 | <a id="mergerequestreviewerauthoredmergerequestsiids"></a>`iids` | [`[String!]`](#string) | Array of IIDs of merge requests, for example `[1, 2]`. |
-| <a id="mergerequestreviewerauthoredmergerequestslabels"></a>`labels` | [`[String!]`](#string) | Array of label names. All resolved merge requests will have all of these labels. |
+| <a id="mergerequestreviewerauthoredmergerequestslabelname"></a>`labelName` | [`[String]`](#string) | Labels applied to the merge request. |
+| <a id="mergerequestreviewerauthoredmergerequestslabels"></a>`labels` **{warning-solid}** | [`[String!]`](#string) | **Deprecated** in GitLab 17.1. Use `labelName`. |
 | <a id="mergerequestreviewerauthoredmergerequestsmergedafter"></a>`mergedAfter` | [`Time`](#time) | Merge requests merged after the date. |
 | <a id="mergerequestreviewerauthoredmergerequestsmergedbefore"></a>`mergedBefore` | [`Time`](#time) | Merge requests merged before the date. |
 | <a id="mergerequestreviewerauthoredmergerequestsmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Title of the milestone. Incompatible with milestoneWildcardId. |
@@ -25547,7 +25568,8 @@ four standard [pagination arguments](#pagination-arguments):
 | <a id="mergerequestreviewerreviewrequestedmergerequestsdraft"></a>`draft` | [`Boolean`](#boolean) | Limit result to draft merge requests. |
 | <a id="mergerequestreviewerreviewrequestedmergerequestsgroupid"></a>`groupId` | [`GroupID`](#groupid) | The global ID of the group the authored merge requests should be in. Merge requests in subgroups are included. |
 | <a id="mergerequestreviewerreviewrequestedmergerequestsiids"></a>`iids` | [`[String!]`](#string) | Array of IIDs of merge requests, for example `[1, 2]`. |
-| <a id="mergerequestreviewerreviewrequestedmergerequestslabels"></a>`labels` | [`[String!]`](#string) | Array of label names. All resolved merge requests will have all of these labels. |
+| <a id="mergerequestreviewerreviewrequestedmergerequestslabelname"></a>`labelName` | [`[String]`](#string) | Labels applied to the merge request. |
+| <a id="mergerequestreviewerreviewrequestedmergerequestslabels"></a>`labels` **{warning-solid}** | [`[String!]`](#string) | **Deprecated** in GitLab 17.1. Use `labelName`. |
 | <a id="mergerequestreviewerreviewrequestedmergerequestsmergedafter"></a>`mergedAfter` | [`Time`](#time) | Merge requests merged after the date. |
 | <a id="mergerequestreviewerreviewrequestedmergerequestsmergedbefore"></a>`mergedBefore` | [`Time`](#time) | Merge requests merged before the date. |
 | <a id="mergerequestreviewerreviewrequestedmergerequestsmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Title of the milestone. Incompatible with milestoneWildcardId. |
@@ -28422,7 +28444,8 @@ four standard [pagination arguments](#pagination-arguments):
 | <a id="projectmergerequestsdeploymentid"></a>`deploymentId` | [`String`](#string) | ID of the deployment. |
 | <a id="projectmergerequestsdraft"></a>`draft` | [`Boolean`](#boolean) | Limit result to draft merge requests. |
 | <a id="projectmergerequestsiids"></a>`iids` | [`[String!]`](#string) | Array of IIDs of merge requests, for example `[1, 2]`. |
-| <a id="projectmergerequestslabels"></a>`labels` | [`[String!]`](#string) | Array of label names. All resolved merge requests will have all of these labels. |
+| <a id="projectmergerequestslabelname"></a>`labelName` | [`[String]`](#string) | Labels applied to the merge request. |
+| <a id="projectmergerequestslabels"></a>`labels` **{warning-solid}** | [`[String!]`](#string) | **Deprecated** in GitLab 17.1. Use `labelName`. |
 | <a id="projectmergerequestsmergedafter"></a>`mergedAfter` | [`Time`](#time) | Merge requests merged after the date. |
 | <a id="projectmergerequestsmergedbefore"></a>`mergedBefore` | [`Time`](#time) | Merge requests merged before the date. |
 | <a id="projectmergerequestsmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Title of the milestone. Incompatible with milestoneWildcardId. |
@@ -31186,7 +31209,8 @@ four standard [pagination arguments](#pagination-arguments):
 | <a id="usercoreassignedmergerequestsdraft"></a>`draft` | [`Boolean`](#boolean) | Limit result to draft merge requests. |
 | <a id="usercoreassignedmergerequestsgroupid"></a>`groupId` | [`GroupID`](#groupid) | The global ID of the group the authored merge requests should be in. Merge requests in subgroups are included. |
 | <a id="usercoreassignedmergerequestsiids"></a>`iids` | [`[String!]`](#string) | Array of IIDs of merge requests, for example `[1, 2]`. |
-| <a id="usercoreassignedmergerequestslabels"></a>`labels` | [`[String!]`](#string) | Array of label names. All resolved merge requests will have all of these labels. |
+| <a id="usercoreassignedmergerequestslabelname"></a>`labelName` | [`[String]`](#string) | Labels applied to the merge request. |
+| <a id="usercoreassignedmergerequestslabels"></a>`labels` **{warning-solid}** | [`[String!]`](#string) | **Deprecated** in GitLab 17.1. Use `labelName`. |
 | <a id="usercoreassignedmergerequestsmergedafter"></a>`mergedAfter` | [`Time`](#time) | Merge requests merged after the date. |
 | <a id="usercoreassignedmergerequestsmergedbefore"></a>`mergedBefore` | [`Time`](#time) | Merge requests merged before the date. |
 | <a id="usercoreassignedmergerequestsmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Title of the milestone. Incompatible with milestoneWildcardId. |
@@ -31229,7 +31253,8 @@ four standard [pagination arguments](#pagination-arguments):
 | <a id="usercoreauthoredmergerequestsdraft"></a>`draft` | [`Boolean`](#boolean) | Limit result to draft merge requests. |
 | <a id="usercoreauthoredmergerequestsgroupid"></a>`groupId` | [`GroupID`](#groupid) | The global ID of the group the authored merge requests should be in. Merge requests in subgroups are included. |
 | <a id="usercoreauthoredmergerequestsiids"></a>`iids` | [`[String!]`](#string) | Array of IIDs of merge requests, for example `[1, 2]`. |
-| <a id="usercoreauthoredmergerequestslabels"></a>`labels` | [`[String!]`](#string) | Array of label names. All resolved merge requests will have all of these labels. |
+| <a id="usercoreauthoredmergerequestslabelname"></a>`labelName` | [`[String]`](#string) | Labels applied to the merge request. |
+| <a id="usercoreauthoredmergerequestslabels"></a>`labels` **{warning-solid}** | [`[String!]`](#string) | **Deprecated** in GitLab 17.1. Use `labelName`. |
 | <a id="usercoreauthoredmergerequestsmergedafter"></a>`mergedAfter` | [`Time`](#time) | Merge requests merged after the date. |
 | <a id="usercoreauthoredmergerequestsmergedbefore"></a>`mergedBefore` | [`Time`](#time) | Merge requests merged before the date. |
 | <a id="usercoreauthoredmergerequestsmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Title of the milestone. Incompatible with milestoneWildcardId. |
@@ -31326,7 +31351,8 @@ four standard [pagination arguments](#pagination-arguments):
 | <a id="usercorereviewrequestedmergerequestsdraft"></a>`draft` | [`Boolean`](#boolean) | Limit result to draft merge requests. |
 | <a id="usercorereviewrequestedmergerequestsgroupid"></a>`groupId` | [`GroupID`](#groupid) | The global ID of the group the authored merge requests should be in. Merge requests in subgroups are included. |
 | <a id="usercorereviewrequestedmergerequestsiids"></a>`iids` | [`[String!]`](#string) | Array of IIDs of merge requests, for example `[1, 2]`. |
-| <a id="usercorereviewrequestedmergerequestslabels"></a>`labels` | [`[String!]`](#string) | Array of label names. All resolved merge requests will have all of these labels. |
+| <a id="usercorereviewrequestedmergerequestslabelname"></a>`labelName` | [`[String]`](#string) | Labels applied to the merge request. |
+| <a id="usercorereviewrequestedmergerequestslabels"></a>`labels` **{warning-solid}** | [`[String!]`](#string) | **Deprecated** in GitLab 17.1. Use `labelName`. |
 | <a id="usercorereviewrequestedmergerequestsmergedafter"></a>`mergedAfter` | [`Time`](#time) | Merge requests merged after the date. |
 | <a id="usercorereviewrequestedmergerequestsmergedbefore"></a>`mergedBefore` | [`Time`](#time) | Merge requests merged before the date. |
 | <a id="usercorereviewrequestedmergerequestsmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Title of the milestone. Incompatible with milestoneWildcardId. |
@@ -37570,7 +37596,8 @@ four standard [pagination arguments](#pagination-arguments):
 | <a id="userassignedmergerequestsdraft"></a>`draft` | [`Boolean`](#boolean) | Limit result to draft merge requests. |
 | <a id="userassignedmergerequestsgroupid"></a>`groupId` | [`GroupID`](#groupid) | The global ID of the group the authored merge requests should be in. Merge requests in subgroups are included. |
 | <a id="userassignedmergerequestsiids"></a>`iids` | [`[String!]`](#string) | Array of IIDs of merge requests, for example `[1, 2]`. |
-| <a id="userassignedmergerequestslabels"></a>`labels` | [`[String!]`](#string) | Array of label names. All resolved merge requests will have all of these labels. |
+| <a id="userassignedmergerequestslabelname"></a>`labelName` | [`[String]`](#string) | Labels applied to the merge request. |
+| <a id="userassignedmergerequestslabels"></a>`labels` **{warning-solid}** | [`[String!]`](#string) | **Deprecated** in GitLab 17.1. Use `labelName`. |
 | <a id="userassignedmergerequestsmergedafter"></a>`mergedAfter` | [`Time`](#time) | Merge requests merged after the date. |
 | <a id="userassignedmergerequestsmergedbefore"></a>`mergedBefore` | [`Time`](#time) | Merge requests merged before the date. |
 | <a id="userassignedmergerequestsmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Title of the milestone. Incompatible with milestoneWildcardId. |
@@ -37613,7 +37640,8 @@ four standard [pagination arguments](#pagination-arguments):
 | <a id="userauthoredmergerequestsdraft"></a>`draft` | [`Boolean`](#boolean) | Limit result to draft merge requests. |
 | <a id="userauthoredmergerequestsgroupid"></a>`groupId` | [`GroupID`](#groupid) | The global ID of the group the authored merge requests should be in. Merge requests in subgroups are included. |
 | <a id="userauthoredmergerequestsiids"></a>`iids` | [`[String!]`](#string) | Array of IIDs of merge requests, for example `[1, 2]`. |
-| <a id="userauthoredmergerequestslabels"></a>`labels` | [`[String!]`](#string) | Array of label names. All resolved merge requests will have all of these labels. |
+| <a id="userauthoredmergerequestslabelname"></a>`labelName` | [`[String]`](#string) | Labels applied to the merge request. |
+| <a id="userauthoredmergerequestslabels"></a>`labels` **{warning-solid}** | [`[String!]`](#string) | **Deprecated** in GitLab 17.1. Use `labelName`. |
 | <a id="userauthoredmergerequestsmergedafter"></a>`mergedAfter` | [`Time`](#time) | Merge requests merged after the date. |
 | <a id="userauthoredmergerequestsmergedbefore"></a>`mergedBefore` | [`Time`](#time) | Merge requests merged before the date. |
 | <a id="userauthoredmergerequestsmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Title of the milestone. Incompatible with milestoneWildcardId. |
@@ -37710,7 +37738,8 @@ four standard [pagination arguments](#pagination-arguments):
 | <a id="userreviewrequestedmergerequestsdraft"></a>`draft` | [`Boolean`](#boolean) | Limit result to draft merge requests. |
 | <a id="userreviewrequestedmergerequestsgroupid"></a>`groupId` | [`GroupID`](#groupid) | The global ID of the group the authored merge requests should be in. Merge requests in subgroups are included. |
 | <a id="userreviewrequestedmergerequestsiids"></a>`iids` | [`[String!]`](#string) | Array of IIDs of merge requests, for example `[1, 2]`. |
-| <a id="userreviewrequestedmergerequestslabels"></a>`labels` | [`[String!]`](#string) | Array of label names. All resolved merge requests will have all of these labels. |
+| <a id="userreviewrequestedmergerequestslabelname"></a>`labelName` | [`[String]`](#string) | Labels applied to the merge request. |
+| <a id="userreviewrequestedmergerequestslabels"></a>`labels` **{warning-solid}** | [`[String!]`](#string) | **Deprecated** in GitLab 17.1. Use `labelName`. |
 | <a id="userreviewrequestedmergerequestsmergedafter"></a>`mergedAfter` | [`Time`](#time) | Merge requests merged after the date. |
 | <a id="userreviewrequestedmergerequestsmergedbefore"></a>`mergedBefore` | [`Time`](#time) | Merge requests merged before the date. |
 | <a id="userreviewrequestedmergerequestsmilestonetitle"></a>`milestoneTitle` | [`String`](#string) | Title of the milestone. Incompatible with milestoneWildcardId. |
diff --git a/spec/graphql/resolvers/project_merge_requests_resolver_spec.rb b/spec/graphql/resolvers/project_merge_requests_resolver_spec.rb
index 8408fb28c44861..bee15faf32f9df 100644
--- a/spec/graphql/resolvers/project_merge_requests_resolver_spec.rb
+++ b/spec/graphql/resolvers/project_merge_requests_resolver_spec.rb
@@ -9,6 +9,7 @@
   let_it_be(:current_user) { create(:user, developer_of: project) }
   let_it_be(:other_user) { create(:user) }
   let_it_be(:reviewer) { create(:user) }
+  let_it_be(:label) { create(:label, project: project) }
 
   let_it_be(:merge_request) do
     create(
@@ -19,7 +20,8 @@
       author: other_user,
       assignee: other_user,
       milestone: create(:milestone, project: project),
-      reviewers: [reviewer]
+      reviewers: [reviewer],
+      labels: [label]
     )
   end
 
@@ -110,6 +112,14 @@
     end
   end
 
+  context 'with label name param' do
+    it 'filters merge requests by label name' do
+      result = resolve_mr(project, label_name: [label.name])
+
+      expect(result).to contain_exactly(merge_request)
+    end
+  end
+
   def resolve_mr(project, resolver: described_class, user: current_user, **args)
     resolve(resolver, obj: project, args: args, ctx: { current_user: user })
   end
diff --git a/spec/graphql/types/project_type_spec.rb b/spec/graphql/types/project_type_spec.rb
index c0884afb733d5a..00dfb4f10d6a26 100644
--- a/spec/graphql/types/project_type_spec.rb
+++ b/spec/graphql/types/project_type_spec.rb
@@ -341,6 +341,7 @@
         :draft,
         :approved,
         :labels,
+        :label_name,
         :before,
         :after,
         :first,
-- 
GitLab