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pullrequests_test.go
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package github
import (
"context"
"encoding/json"
"net/http"
"testing"
"time"
"github.com/google/go-github/v69/github"
"github.com/migueleliasweb/go-github-mock/src/mock"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func Test_GetPullRequest(t *testing.T) {
// Verify tool definition once
mockClient := github.NewClient(nil)
tool, _ := getPullRequest(mockClient)
assert.Equal(t, "get_pull_request", tool.Name)
assert.NotEmpty(t, tool.Description)
assert.Contains(t, tool.InputSchema.Properties, "owner")
assert.Contains(t, tool.InputSchema.Properties, "repo")
assert.Contains(t, tool.InputSchema.Properties, "pull_number")
assert.ElementsMatch(t, tool.InputSchema.Required, []string{"owner", "repo", "pull_number"})
// Setup mock PR for success case
mockPR := &github.PullRequest{
Number: github.Ptr(42),
Title: github.Ptr("Test PR"),
State: github.Ptr("open"),
HTMLURL: github.Ptr("https://github.com/owner/repo/pull/42"),
Head: &github.PullRequestBranch{
SHA: github.Ptr("abcd1234"),
Ref: github.Ptr("feature-branch"),
},
Base: &github.PullRequestBranch{
Ref: github.Ptr("main"),
},
Body: github.Ptr("This is a test PR"),
User: &github.User{
Login: github.Ptr("testuser"),
},
}
tests := []struct {
name string
mockedClient *http.Client
requestArgs map[string]interface{}
expectError bool
expectedPR *github.PullRequest
expectedErrMsg string
}{
{
name: "successful PR fetch",
mockedClient: mock.NewMockedHTTPClient(
mock.WithRequestMatch(
mock.GetReposPullsByOwnerByRepoByPullNumber,
mockPR,
),
),
requestArgs: map[string]interface{}{
"owner": "owner",
"repo": "repo",
"pull_number": float64(42),
},
expectError: false,
expectedPR: mockPR,
},
{
name: "PR fetch fails",
mockedClient: mock.NewMockedHTTPClient(
mock.WithRequestMatchHandler(
mock.GetReposPullsByOwnerByRepoByPullNumber,
http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusNotFound)
_, _ = w.Write([]byte(`{"message": "Not Found"}`))
}),
),
),
requestArgs: map[string]interface{}{
"owner": "owner",
"repo": "repo",
"pull_number": float64(999),
},
expectError: true,
expectedErrMsg: "failed to get pull request",
},
}
for _, tc := range tests {
t.Run(tc.name, func(t *testing.T) {
// Setup client with mock
client := github.NewClient(tc.mockedClient)
_, handler := getPullRequest(client)
// Create call request
request := createMCPRequest(tc.requestArgs)
// Call handler
result, err := handler(context.Background(), request)
// Verify results
if tc.expectError {
require.Error(t, err)
assert.Contains(t, err.Error(), tc.expectedErrMsg)
return
}
require.NoError(t, err)
// Parse the result and get the text content if no error
textContent := getTextResult(t, result)
// Unmarshal and verify the result
var returnedPR github.PullRequest
err = json.Unmarshal([]byte(textContent.Text), &returnedPR)
require.NoError(t, err)
assert.Equal(t, *tc.expectedPR.Number, *returnedPR.Number)
assert.Equal(t, *tc.expectedPR.Title, *returnedPR.Title)
assert.Equal(t, *tc.expectedPR.State, *returnedPR.State)
assert.Equal(t, *tc.expectedPR.HTMLURL, *returnedPR.HTMLURL)
})
}
}
func Test_ListPullRequests(t *testing.T) {
// Verify tool definition once
mockClient := github.NewClient(nil)
tool, _ := listPullRequests(mockClient)
assert.Equal(t, "list_pull_requests", tool.Name)
assert.NotEmpty(t, tool.Description)
assert.Contains(t, tool.InputSchema.Properties, "owner")
assert.Contains(t, tool.InputSchema.Properties, "repo")
assert.Contains(t, tool.InputSchema.Properties, "state")
assert.Contains(t, tool.InputSchema.Properties, "head")
assert.Contains(t, tool.InputSchema.Properties, "base")
assert.Contains(t, tool.InputSchema.Properties, "sort")
assert.Contains(t, tool.InputSchema.Properties, "direction")
assert.Contains(t, tool.InputSchema.Properties, "per_page")
assert.Contains(t, tool.InputSchema.Properties, "page")
assert.ElementsMatch(t, tool.InputSchema.Required, []string{"owner", "repo"})
// Setup mock PRs for success case
mockPRs := []*github.PullRequest{
{
Number: github.Ptr(42),
Title: github.Ptr("First PR"),
State: github.Ptr("open"),
HTMLURL: github.Ptr("https://github.com/owner/repo/pull/42"),
},
{
Number: github.Ptr(43),
Title: github.Ptr("Second PR"),
State: github.Ptr("closed"),
HTMLURL: github.Ptr("https://github.com/owner/repo/pull/43"),
},
}
tests := []struct {
name string
mockedClient *http.Client
requestArgs map[string]interface{}
expectError bool
expectedPRs []*github.PullRequest
expectedErrMsg string
}{
{
name: "successful PRs listing",
mockedClient: mock.NewMockedHTTPClient(
mock.WithRequestMatch(
mock.GetReposPullsByOwnerByRepo,
mockPRs,
),
),
requestArgs: map[string]interface{}{
"owner": "owner",
"repo": "repo",
"state": "all",
"sort": "created",
"direction": "desc",
"per_page": float64(30),
"page": float64(1),
},
expectError: false,
expectedPRs: mockPRs,
},
{
name: "PRs listing fails",
mockedClient: mock.NewMockedHTTPClient(
mock.WithRequestMatchHandler(
mock.GetReposPullsByOwnerByRepo,
http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusBadRequest)
_, _ = w.Write([]byte(`{"message": "Invalid request"}`))
}),
),
),
requestArgs: map[string]interface{}{
"owner": "owner",
"repo": "repo",
"state": "invalid",
},
expectError: true,
expectedErrMsg: "failed to list pull requests",
},
}
for _, tc := range tests {
t.Run(tc.name, func(t *testing.T) {
// Setup client with mock
client := github.NewClient(tc.mockedClient)
_, handler := listPullRequests(client)
// Create call request
request := createMCPRequest(tc.requestArgs)
// Call handler
result, err := handler(context.Background(), request)
// Verify results
if tc.expectError {
require.Error(t, err)
assert.Contains(t, err.Error(), tc.expectedErrMsg)
return
}
require.NoError(t, err)
// Parse the result and get the text content if no error
textContent := getTextResult(t, result)
// Unmarshal and verify the result
var returnedPRs []*github.PullRequest
err = json.Unmarshal([]byte(textContent.Text), &returnedPRs)
require.NoError(t, err)
assert.Len(t, returnedPRs, 2)
assert.Equal(t, *tc.expectedPRs[0].Number, *returnedPRs[0].Number)
assert.Equal(t, *tc.expectedPRs[0].Title, *returnedPRs[0].Title)
assert.Equal(t, *tc.expectedPRs[0].State, *returnedPRs[0].State)
assert.Equal(t, *tc.expectedPRs[1].Number, *returnedPRs[1].Number)
assert.Equal(t, *tc.expectedPRs[1].Title, *returnedPRs[1].Title)
assert.Equal(t, *tc.expectedPRs[1].State, *returnedPRs[1].State)
})
}
}
func Test_MergePullRequest(t *testing.T) {
// Verify tool definition once
mockClient := github.NewClient(nil)
tool, _ := mergePullRequest(mockClient)
assert.Equal(t, "merge_pull_request", tool.Name)
assert.NotEmpty(t, tool.Description)
assert.Contains(t, tool.InputSchema.Properties, "owner")
assert.Contains(t, tool.InputSchema.Properties, "repo")
assert.Contains(t, tool.InputSchema.Properties, "pull_number")
assert.Contains(t, tool.InputSchema.Properties, "commit_title")
assert.Contains(t, tool.InputSchema.Properties, "commit_message")
assert.Contains(t, tool.InputSchema.Properties, "merge_method")
assert.ElementsMatch(t, tool.InputSchema.Required, []string{"owner", "repo", "pull_number"})
// Setup mock merge result for success case
mockMergeResult := &github.PullRequestMergeResult{
Merged: github.Ptr(true),
Message: github.Ptr("Pull Request successfully merged"),
SHA: github.Ptr("abcd1234efgh5678"),
}
tests := []struct {
name string
mockedClient *http.Client
requestArgs map[string]interface{}
expectError bool
expectedMergeResult *github.PullRequestMergeResult
expectedErrMsg string
}{
{
name: "successful merge",
mockedClient: mock.NewMockedHTTPClient(
mock.WithRequestMatch(
mock.PutReposPullsMergeByOwnerByRepoByPullNumber,
mockMergeResult,
),
),
requestArgs: map[string]interface{}{
"owner": "owner",
"repo": "repo",
"pull_number": float64(42),
"commit_title": "Merge PR #42",
"commit_message": "Merging awesome feature",
"merge_method": "squash",
},
expectError: false,
expectedMergeResult: mockMergeResult,
},
{
name: "merge fails",
mockedClient: mock.NewMockedHTTPClient(
mock.WithRequestMatchHandler(
mock.PutReposPullsMergeByOwnerByRepoByPullNumber,
http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusMethodNotAllowed)
_, _ = w.Write([]byte(`{"message": "Pull request cannot be merged"}`))
}),
),
),
requestArgs: map[string]interface{}{
"owner": "owner",
"repo": "repo",
"pull_number": float64(42),
},
expectError: true,
expectedErrMsg: "failed to merge pull request",
},
}
for _, tc := range tests {
t.Run(tc.name, func(t *testing.T) {
// Setup client with mock
client := github.NewClient(tc.mockedClient)
_, handler := mergePullRequest(client)
// Create call request
request := createMCPRequest(tc.requestArgs)
// Call handler
result, err := handler(context.Background(), request)
// Verify results
if tc.expectError {
require.Error(t, err)
assert.Contains(t, err.Error(), tc.expectedErrMsg)
return
}
require.NoError(t, err)
// Parse the result and get the text content if no error
textContent := getTextResult(t, result)
// Unmarshal and verify the result
var returnedResult github.PullRequestMergeResult
err = json.Unmarshal([]byte(textContent.Text), &returnedResult)
require.NoError(t, err)
assert.Equal(t, *tc.expectedMergeResult.Merged, *returnedResult.Merged)
assert.Equal(t, *tc.expectedMergeResult.Message, *returnedResult.Message)
assert.Equal(t, *tc.expectedMergeResult.SHA, *returnedResult.SHA)
})
}
}
func Test_GetPullRequestFiles(t *testing.T) {
// Verify tool definition once
mockClient := github.NewClient(nil)
tool, _ := getPullRequestFiles(mockClient)
assert.Equal(t, "get_pull_request_files", tool.Name)
assert.NotEmpty(t, tool.Description)
assert.Contains(t, tool.InputSchema.Properties, "owner")
assert.Contains(t, tool.InputSchema.Properties, "repo")
assert.Contains(t, tool.InputSchema.Properties, "pull_number")
assert.ElementsMatch(t, tool.InputSchema.Required, []string{"owner", "repo", "pull_number"})
// Setup mock PR files for success case
mockFiles := []*github.CommitFile{
{
Filename: github.Ptr("file1.go"),
Status: github.Ptr("modified"),
Additions: github.Ptr(10),
Deletions: github.Ptr(5),
Changes: github.Ptr(15),
Patch: github.Ptr("@@ -1,5 +1,10 @@"),
},
{
Filename: github.Ptr("file2.go"),
Status: github.Ptr("added"),
Additions: github.Ptr(20),
Deletions: github.Ptr(0),
Changes: github.Ptr(20),
Patch: github.Ptr("@@ -0,0 +1,20 @@"),
},
}
tests := []struct {
name string
mockedClient *http.Client
requestArgs map[string]interface{}
expectError bool
expectedFiles []*github.CommitFile
expectedErrMsg string
}{
{
name: "successful files fetch",
mockedClient: mock.NewMockedHTTPClient(
mock.WithRequestMatch(
mock.GetReposPullsFilesByOwnerByRepoByPullNumber,
mockFiles,
),
),
requestArgs: map[string]interface{}{
"owner": "owner",
"repo": "repo",
"pull_number": float64(42),
},
expectError: false,
expectedFiles: mockFiles,
},
{
name: "files fetch fails",
mockedClient: mock.NewMockedHTTPClient(
mock.WithRequestMatchHandler(
mock.GetReposPullsFilesByOwnerByRepoByPullNumber,
http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusNotFound)
_, _ = w.Write([]byte(`{"message": "Not Found"}`))
}),
),
),
requestArgs: map[string]interface{}{
"owner": "owner",
"repo": "repo",
"pull_number": float64(999),
},
expectError: true,
expectedErrMsg: "failed to get pull request files",
},
}
for _, tc := range tests {
t.Run(tc.name, func(t *testing.T) {
// Setup client with mock
client := github.NewClient(tc.mockedClient)
_, handler := getPullRequestFiles(client)
// Create call request
request := createMCPRequest(tc.requestArgs)
// Call handler
result, err := handler(context.Background(), request)
// Verify results
if tc.expectError {
require.Error(t, err)
assert.Contains(t, err.Error(), tc.expectedErrMsg)
return
}
require.NoError(t, err)
// Parse the result and get the text content if no error
textContent := getTextResult(t, result)
// Unmarshal and verify the result
var returnedFiles []*github.CommitFile
err = json.Unmarshal([]byte(textContent.Text), &returnedFiles)
require.NoError(t, err)
assert.Len(t, returnedFiles, len(tc.expectedFiles))
for i, file := range returnedFiles {
assert.Equal(t, *tc.expectedFiles[i].Filename, *file.Filename)
assert.Equal(t, *tc.expectedFiles[i].Status, *file.Status)
assert.Equal(t, *tc.expectedFiles[i].Additions, *file.Additions)
assert.Equal(t, *tc.expectedFiles[i].Deletions, *file.Deletions)
}
})
}
}
func Test_GetPullRequestStatus(t *testing.T) {
// Verify tool definition once
mockClient := github.NewClient(nil)
tool, _ := getPullRequestStatus(mockClient)
assert.Equal(t, "get_pull_request_status", tool.Name)
assert.NotEmpty(t, tool.Description)
assert.Contains(t, tool.InputSchema.Properties, "owner")
assert.Contains(t, tool.InputSchema.Properties, "repo")
assert.Contains(t, tool.InputSchema.Properties, "pull_number")
assert.ElementsMatch(t, tool.InputSchema.Required, []string{"owner", "repo", "pull_number"})
// Setup mock PR for successful PR fetch
mockPR := &github.PullRequest{
Number: github.Ptr(42),
Title: github.Ptr("Test PR"),
HTMLURL: github.Ptr("https://github.com/owner/repo/pull/42"),
Head: &github.PullRequestBranch{
SHA: github.Ptr("abcd1234"),
Ref: github.Ptr("feature-branch"),
},
}
// Setup mock status for success case
mockStatus := &github.CombinedStatus{
State: github.Ptr("success"),
TotalCount: github.Ptr(3),
Statuses: []*github.RepoStatus{
{
State: github.Ptr("success"),
Context: github.Ptr("continuous-integration/travis-ci"),
Description: github.Ptr("Build succeeded"),
TargetURL: github.Ptr("https://travis-ci.org/owner/repo/builds/123"),
},
{
State: github.Ptr("success"),
Context: github.Ptr("codecov/patch"),
Description: github.Ptr("Coverage increased"),
TargetURL: github.Ptr("https://codecov.io/gh/owner/repo/pull/42"),
},
{
State: github.Ptr("success"),
Context: github.Ptr("lint/golangci-lint"),
Description: github.Ptr("No issues found"),
TargetURL: github.Ptr("https://golangci.com/r/owner/repo/pull/42"),
},
},
}
tests := []struct {
name string
mockedClient *http.Client
requestArgs map[string]interface{}
expectError bool
expectedStatus *github.CombinedStatus
expectedErrMsg string
}{
{
name: "successful status fetch",
mockedClient: mock.NewMockedHTTPClient(
mock.WithRequestMatch(
mock.GetReposPullsByOwnerByRepoByPullNumber,
mockPR,
),
mock.WithRequestMatch(
mock.GetReposCommitsStatusByOwnerByRepoByRef,
mockStatus,
),
),
requestArgs: map[string]interface{}{
"owner": "owner",
"repo": "repo",
"pull_number": float64(42),
},
expectError: false,
expectedStatus: mockStatus,
},
{
name: "PR fetch fails",
mockedClient: mock.NewMockedHTTPClient(
mock.WithRequestMatchHandler(
mock.GetReposPullsByOwnerByRepoByPullNumber,
http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusNotFound)
_, _ = w.Write([]byte(`{"message": "Not Found"}`))
}),
),
),
requestArgs: map[string]interface{}{
"owner": "owner",
"repo": "repo",
"pull_number": float64(999),
},
expectError: true,
expectedErrMsg: "failed to get pull request",
},
{
name: "status fetch fails",
mockedClient: mock.NewMockedHTTPClient(
mock.WithRequestMatch(
mock.GetReposPullsByOwnerByRepoByPullNumber,
mockPR,
),
mock.WithRequestMatchHandler(
mock.GetReposCommitsStatusesByOwnerByRepoByRef,
http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusNotFound)
_, _ = w.Write([]byte(`{"message": "Not Found"}`))
}),
),
),
requestArgs: map[string]interface{}{
"owner": "owner",
"repo": "repo",
"pull_number": float64(42),
},
expectError: true,
expectedErrMsg: "failed to get combined status",
},
}
for _, tc := range tests {
t.Run(tc.name, func(t *testing.T) {
// Setup client with mock
client := github.NewClient(tc.mockedClient)
_, handler := getPullRequestStatus(client)
// Create call request
request := createMCPRequest(tc.requestArgs)
// Call handler
result, err := handler(context.Background(), request)
// Verify results
if tc.expectError {
require.Error(t, err)
assert.Contains(t, err.Error(), tc.expectedErrMsg)
return
}
require.NoError(t, err)
// Parse the result and get the text content if no error
textContent := getTextResult(t, result)
// Unmarshal and verify the result
var returnedStatus github.CombinedStatus
err = json.Unmarshal([]byte(textContent.Text), &returnedStatus)
require.NoError(t, err)
assert.Equal(t, *tc.expectedStatus.State, *returnedStatus.State)
assert.Equal(t, *tc.expectedStatus.TotalCount, *returnedStatus.TotalCount)
assert.Len(t, returnedStatus.Statuses, len(tc.expectedStatus.Statuses))
for i, status := range returnedStatus.Statuses {
assert.Equal(t, *tc.expectedStatus.Statuses[i].State, *status.State)
assert.Equal(t, *tc.expectedStatus.Statuses[i].Context, *status.Context)
assert.Equal(t, *tc.expectedStatus.Statuses[i].Description, *status.Description)
}
})
}
}
func Test_UpdatePullRequestBranch(t *testing.T) {
// Verify tool definition once
mockClient := github.NewClient(nil)
tool, _ := updatePullRequestBranch(mockClient)
assert.Equal(t, "update_pull_request_branch", tool.Name)
assert.NotEmpty(t, tool.Description)
assert.Contains(t, tool.InputSchema.Properties, "owner")
assert.Contains(t, tool.InputSchema.Properties, "repo")
assert.Contains(t, tool.InputSchema.Properties, "pull_number")
assert.Contains(t, tool.InputSchema.Properties, "expected_head_sha")
assert.ElementsMatch(t, tool.InputSchema.Required, []string{"owner", "repo", "pull_number"})
// Setup mock update result for success case
mockUpdateResult := &github.PullRequestBranchUpdateResponse{
Message: github.Ptr("Branch was updated successfully"),
URL: github.Ptr("https://api.github.com/repos/owner/repo/pulls/42"),
}
tests := []struct {
name string
mockedClient *http.Client
requestArgs map[string]interface{}
expectError bool
expectedUpdateResult *github.PullRequestBranchUpdateResponse
expectedErrMsg string
}{
{
name: "successful branch update",
mockedClient: mock.NewMockedHTTPClient(
mock.WithRequestMatchHandler(
mock.PutReposPullsUpdateBranchByOwnerByRepoByPullNumber,
mockResponse(t, http.StatusAccepted, mockUpdateResult),
),
),
requestArgs: map[string]interface{}{
"owner": "owner",
"repo": "repo",
"pull_number": float64(42),
"expected_head_sha": "abcd1234",
},
expectError: false,
expectedUpdateResult: mockUpdateResult,
},
{
name: "branch update without expected SHA",
mockedClient: mock.NewMockedHTTPClient(
mock.WithRequestMatchHandler(
mock.PutReposPullsUpdateBranchByOwnerByRepoByPullNumber,
mockResponse(t, http.StatusAccepted, mockUpdateResult),
),
),
requestArgs: map[string]interface{}{
"owner": "owner",
"repo": "repo",
"pull_number": float64(42),
},
expectError: false,
expectedUpdateResult: mockUpdateResult,
},
{
name: "branch update fails",
mockedClient: mock.NewMockedHTTPClient(
mock.WithRequestMatchHandler(
mock.PutReposPullsUpdateBranchByOwnerByRepoByPullNumber,
http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusConflict)
_, _ = w.Write([]byte(`{"message": "Merge conflict"}`))
}),
),
),
requestArgs: map[string]interface{}{
"owner": "owner",
"repo": "repo",
"pull_number": float64(42),
},
expectError: true,
expectedErrMsg: "failed to update pull request branch",
},
}
for _, tc := range tests {
t.Run(tc.name, func(t *testing.T) {
// Setup client with mock
client := github.NewClient(tc.mockedClient)
_, handler := updatePullRequestBranch(client)
// Create call request
request := createMCPRequest(tc.requestArgs)
// Call handler
result, err := handler(context.Background(), request)
// Verify results
if tc.expectError {
require.Error(t, err)
assert.Contains(t, err.Error(), tc.expectedErrMsg)
return
}
require.NoError(t, err)
// Parse the result and get the text content if no error
textContent := getTextResult(t, result)
assert.Contains(t, textContent.Text, "is in progress")
})
}
}
func Test_GetPullRequestComments(t *testing.T) {
// Verify tool definition once
mockClient := github.NewClient(nil)
tool, _ := getPullRequestComments(mockClient)
assert.Equal(t, "get_pull_request_comments", tool.Name)
assert.NotEmpty(t, tool.Description)
assert.Contains(t, tool.InputSchema.Properties, "owner")
assert.Contains(t, tool.InputSchema.Properties, "repo")
assert.Contains(t, tool.InputSchema.Properties, "pull_number")
assert.ElementsMatch(t, tool.InputSchema.Required, []string{"owner", "repo", "pull_number"})
// Setup mock PR comments for success case
mockComments := []*github.PullRequestComment{
{
ID: github.Ptr(int64(101)),
Body: github.Ptr("This looks good"),
HTMLURL: github.Ptr("https://github.com/owner/repo/pull/42#discussion_r101"),
User: &github.User{
Login: github.Ptr("reviewer1"),
},
Path: github.Ptr("file1.go"),
Position: github.Ptr(5),
CommitID: github.Ptr("abcdef123456"),
CreatedAt: &github.Timestamp{Time: time.Now().Add(-24 * time.Hour)},
UpdatedAt: &github.Timestamp{Time: time.Now().Add(-24 * time.Hour)},
},
{
ID: github.Ptr(int64(102)),
Body: github.Ptr("Please fix this"),
HTMLURL: github.Ptr("https://github.com/owner/repo/pull/42#discussion_r102"),
User: &github.User{
Login: github.Ptr("reviewer2"),
},
Path: github.Ptr("file2.go"),
Position: github.Ptr(10),
CommitID: github.Ptr("abcdef123456"),
CreatedAt: &github.Timestamp{Time: time.Now().Add(-12 * time.Hour)},
UpdatedAt: &github.Timestamp{Time: time.Now().Add(-12 * time.Hour)},
},
}
tests := []struct {
name string
mockedClient *http.Client
requestArgs map[string]interface{}
expectError bool
expectedComments []*github.PullRequestComment
expectedErrMsg string
}{
{
name: "successful comments fetch",
mockedClient: mock.NewMockedHTTPClient(
mock.WithRequestMatch(
mock.GetReposPullsCommentsByOwnerByRepoByPullNumber,
mockComments,
),
),
requestArgs: map[string]interface{}{
"owner": "owner",
"repo": "repo",
"pull_number": float64(42),
},
expectError: false,
expectedComments: mockComments,
},
{
name: "comments fetch fails",
mockedClient: mock.NewMockedHTTPClient(
mock.WithRequestMatchHandler(
mock.GetReposPullsCommentsByOwnerByRepoByPullNumber,
http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusNotFound)
_, _ = w.Write([]byte(`{"message": "Not Found"}`))
}),
),
),
requestArgs: map[string]interface{}{
"owner": "owner",
"repo": "repo",
"pull_number": float64(999),
},
expectError: true,
expectedErrMsg: "failed to get pull request comments",
},
}
for _, tc := range tests {
t.Run(tc.name, func(t *testing.T) {
// Setup client with mock
client := github.NewClient(tc.mockedClient)
_, handler := getPullRequestComments(client)
// Create call request
request := createMCPRequest(tc.requestArgs)
// Call handler
result, err := handler(context.Background(), request)
// Verify results
if tc.expectError {
require.Error(t, err)
assert.Contains(t, err.Error(), tc.expectedErrMsg)
return
}
require.NoError(t, err)
// Parse the result and get the text content if no error
textContent := getTextResult(t, result)
// Unmarshal and verify the result
var returnedComments []*github.PullRequestComment
err = json.Unmarshal([]byte(textContent.Text), &returnedComments)
require.NoError(t, err)
assert.Len(t, returnedComments, len(tc.expectedComments))
for i, comment := range returnedComments {
assert.Equal(t, *tc.expectedComments[i].ID, *comment.ID)
assert.Equal(t, *tc.expectedComments[i].Body, *comment.Body)
assert.Equal(t, *tc.expectedComments[i].User.Login, *comment.User.Login)
assert.Equal(t, *tc.expectedComments[i].Path, *comment.Path)
assert.Equal(t, *tc.expectedComments[i].HTMLURL, *comment.HTMLURL)
}
})
}
}
func Test_GetPullRequestReviews(t *testing.T) {
// Verify tool definition once
mockClient := github.NewClient(nil)
tool, _ := getPullRequestReviews(mockClient)
assert.Equal(t, "get_pull_request_reviews", tool.Name)
assert.NotEmpty(t, tool.Description)
assert.Contains(t, tool.InputSchema.Properties, "owner")
assert.Contains(t, tool.InputSchema.Properties, "repo")
assert.Contains(t, tool.InputSchema.Properties, "pull_number")
assert.ElementsMatch(t, tool.InputSchema.Required, []string{"owner", "repo", "pull_number"})
// Setup mock PR reviews for success case
mockReviews := []*github.PullRequestReview{
{
ID: github.Ptr(int64(201)),
State: github.Ptr("APPROVED"),
Body: github.Ptr("LGTM"),
HTMLURL: github.Ptr("https://github.com/owner/repo/pull/42#pullrequestreview-201"),
User: &github.User{
Login: github.Ptr("approver"),
},
CommitID: github.Ptr("abcdef123456"),
SubmittedAt: &github.Timestamp{Time: time.Now().Add(-24 * time.Hour)},
},
{
ID: github.Ptr(int64(202)),
State: github.Ptr("CHANGES_REQUESTED"),
Body: github.Ptr("Please address the following issues"),
HTMLURL: github.Ptr("https://github.com/owner/repo/pull/42#pullrequestreview-202"),
User: &github.User{
Login: github.Ptr("reviewer"),
},
CommitID: github.Ptr("abcdef123456"),
SubmittedAt: &github.Timestamp{Time: time.Now().Add(-12 * time.Hour)},
},
}
tests := []struct {
name string
mockedClient *http.Client
requestArgs map[string]interface{}
expectError bool
expectedReviews []*github.PullRequestReview
expectedErrMsg string
}{
{
name: "successful reviews fetch",
mockedClient: mock.NewMockedHTTPClient(
mock.WithRequestMatch(
mock.GetReposPullsReviewsByOwnerByRepoByPullNumber,
mockReviews,
),
),
requestArgs: map[string]interface{}{
"owner": "owner",
"repo": "repo",
"pull_number": float64(42),
},
expectError: false,
expectedReviews: mockReviews,
},
{
name: "reviews fetch fails",
mockedClient: mock.NewMockedHTTPClient(
mock.WithRequestMatchHandler(
mock.GetReposPullsReviewsByOwnerByRepoByPullNumber,
http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusNotFound)
_, _ = w.Write([]byte(`{"message": "Not Found"}`))
}),
),
),
requestArgs: map[string]interface{}{
"owner": "owner",
"repo": "repo",
"pull_number": float64(999),
},
expectError: true,
expectedErrMsg: "failed to get pull request reviews",
},
}
for _, tc := range tests {
t.Run(tc.name, func(t *testing.T) {
// Setup client with mock
client := github.NewClient(tc.mockedClient)
_, handler := getPullRequestReviews(client)
// Create call request
request := createMCPRequest(tc.requestArgs)
// Call handler
result, err := handler(context.Background(), request)
// Verify results
if tc.expectError {
require.Error(t, err)
assert.Contains(t, err.Error(), tc.expectedErrMsg)
return
}
require.NoError(t, err)
// Parse the result and get the text content if no error
textContent := getTextResult(t, result)
// Unmarshal and verify the result
var returnedReviews []*github.PullRequestReview
err = json.Unmarshal([]byte(textContent.Text), &returnedReviews)
require.NoError(t, err)
assert.Len(t, returnedReviews, len(tc.expectedReviews))
for i, review := range returnedReviews {
assert.Equal(t, *tc.expectedReviews[i].ID, *review.ID)
assert.Equal(t, *tc.expectedReviews[i].State, *review.State)
assert.Equal(t, *tc.expectedReviews[i].Body, *review.Body)
assert.Equal(t, *tc.expectedReviews[i].User.Login, *review.User.Login)
assert.Equal(t, *tc.expectedReviews[i].HTMLURL, *review.HTMLURL)
}
})
}
}