Fix #5431 : Todo Checks Should Check Exclusively Against Issues (#5564)

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## Explanation

Fix #5431
This pull request fixes issue by implementing the following changes:

Filters out pull requests from the "open issues" list.
Ensures all "To-Do" checks will pass only for open issues (not for prs).
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- Explain what your PR does. If this PR fixes an existing bug, please
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- "Fixes #bugnum:" in the explanation so that GitHub can auto-close the
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## Essential Checklist
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- [x] The PR title and explanation each start with "Fix #bugnum: " (If
this PR fixes part of an issue, prefix the title with "Fix part of
#bugnum: ...".)
- [x] Any changes to
[scripts/assets](https://github.com/oppia/oppia-android/tree/develop/scripts/assets)
files have their rationale included in the PR explanation.
- [x] The PR follows the [style
guide](https://github.com/oppia/oppia-android/wiki/Coding-style-guide).
- [x] The PR does not contain any unnecessary code changes from Android
Studio
([reference](https://github.com/oppia/oppia-android/wiki/Guidance-on-submitting-a-PR#undo-unnecessary-changes)).
- [x] The PR is made from a branch that's **not** called "develop" and
is up-to-date with "develop".
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([reference](https://github.com/oppia/oppia-android/wiki/Guidance-on-submitting-a-PR#clarification-regarding-assignees-and-reviewers-section)).

## For UI-specific PRs only
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[accessibility
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---------

Co-authored-by: Sneha Datta <snehadatta431@gmail.com>
Co-authored-by: Adhiambo Peres <59600948+adhiamboperes@users.noreply.github.com>
Co-authored-by: Mr. 17 <saptakmanna100@gmail.com>

scripts/assets/todo_open_exemptions.textproto

@@ -333,6 +333,11 @@ todo_open_exemption {
   line_number: 689
   line_number: 737
   line_number: 741
+  line_number: 790
+  line_number: 791
+  line_number: 792
+  line_number: 798
+  line_number: 800
 }
 todo_open_exemption {
   exempted_file_path: "scripts/static_checks.sh"

scripts/src/java/org/oppia/android/scripts/common/GitHubClient.kt

@@ -68,13 +68,14 @@ class GitHubClient(
       val call = gitHubService.fetchOpenIssues(repoOwner, repoName, authorizationBearer, pageNumber)
       // Deferred blocking I/O operation to the dedicated I/O dispatcher.
       val response = withContext(Dispatchers.IO) { call.execute() }
+
       check(response.isSuccessful()) {
         "Failed to fetch issues at page $pageNumber: ${response.code()}\n${call.request()}" +
           "\n${response.errorBody()}."
       }
       return@async checkNotNull(response.body()) {
         "No issues response from GitHub for page: $pageNumber."
-      }
+      }.filter { it.pullRequest == null }
     }
   }
 

scripts/src/java/org/oppia/android/scripts/common/model/GitHubIssue.kt

@@ -10,4 +10,18 @@ import com.squareup.moshi.JsonClass
  *     'issues/' in an issue's GitHub URL)
  */
 @JsonClass(generateAdapter = true)
-data class GitHubIssue(@Json(name = "number") val number: Int)
+data class GitHubIssue(
+  @Json(name = "number") val number: Int,
+  @Json(name = "pull_request") val pullRequest: PullRequestInfo? = null
+)
+
+/**
+ * Data class representing information about a pull request associated with a GitHub issue.
+ *
+ * @property url the URL of the pull request, if it exists. This provides the link to the specific
+ *     pull request associated with the issue on GitHub.
+ */
+@JsonClass(generateAdapter = true)
+data class PullRequestInfo(
+  @Json(name = "url") val url: String? = null
+)

scripts/src/javatests/org/oppia/android/scripts/todo/TodoOpenCheckTest.kt

@@ -777,11 +777,67 @@ class TodoOpenCheckTest {
     assertThat(outContent.toString().trim()).isEqualTo(failureMessage)
   }
 
-  private fun setUpGitHubService(issueNumbers: List<Int>) {
-    val issueJsons = issueNumbers.joinToString(separator = ",") { "{\"number\":$it}" }
+  @Test
+  fun testTodoCheck_PrPresent_checkShouldFail() {
+    setUpGitHubService(
+      issueNumbers = listOf(11004, 11003, 11002, 11001),
+      pullRequestNumbers = listOf(11005)
+    )
+    val tempFile1 = tempFolder.newFile("testfiles/TempFile1.kt")
+    val tempFile2 = tempFolder.newFile("testfiles/TempFile2.kt")
+    val testContent1 =
+      """
+      // TODO(#11002): test summary 1.
+      # TODO(#11004): test summary 2.
+      # TODO(#11001): test summary 3.
+      test Todo
+      test TODO
+      """.trimIndent()
+    val testContent2 =
+      """
+      // TODO(#11005): test summary 3.
+      todo
+      <!-- TODO(#11003): test summary 4-->
+
+      """.trimIndent()
+    tempFile1.writeText(testContent1)
+    tempFile2.writeText(testContent2)
+
+    val exception = assertThrows<Exception>() { runScript() }
+
+    assertThat(exception).hasMessageThat().contains(TODO_SYNTAX_CHECK_FAILED_OUTPUT_INDICATOR)
+    val failureMessage =
+      """
+      TODOs not corresponding to open issues on GitHub:
+      - TempFile2.kt:1
+
+      $wikiReferenceNote
+
+      $regenerateNote
+      """.trimIndent()
+    assertThat(outContent.toString().trim()).isEqualTo(failureMessage)
+  }
+
+  private fun setUpGitHubService(
+    issueNumbers: List<Int>,
+    pullRequestNumbers: List<Int> = emptyList()
+  ) {
+    // Create JSON for issues with "pull_request" set to null
+    val issueJsons = issueNumbers
+      .joinToString(separator = ",") { "{\"number\":$it,\"pull_request\":null}" }
+
+    // Create JSON for pull requests with "pull_request" as an empty object
+    val pullRequestJsons = pullRequestNumbers
+      .joinToString(separator = ",") { "{\"number\":$it,\"pull_request\":{}}" }
+
+    // Combine issues and pull requests into one JSON array
+    val combinedJsons =
+      "[$issueJsons${if (pullRequestNumbers.isNotEmpty()) ", $pullRequestJsons" else ""}]"
+
     val mockWebServer = MockWebServer()
     mockWebServer.enqueue(MockResponse().setBody("[$issueJsons]"))
-    mockWebServer.enqueue(MockResponse().setBody("[]")) // No more issues.
+    mockWebServer.enqueue(MockResponse().setBody(combinedJsons))
+    mockWebServer.enqueue(MockResponse().setBody("[]"))
     GitHubClient.remoteApiUrl = mockWebServer.url("/").toString()
   }