diff --git a/composer/spec/dependabot/composer/update_checker_spec.rb b/composer/spec/dependabot/composer/update_checker_spec.rb
index b50e859b798..0a9351574d0 100644
--- a/composer/spec/dependabot/composer/update_checker_spec.rb
+++ b/composer/spec/dependabot/composer/update_checker_spec.rb
@@ -513,7 +513,7 @@
       end
     end
 
-    context "with an update that can't resolve" do
+    context "with an update that can't resolve due to a version conflict" do
       let(:project_name) { "version_conflict_on_update" }
       let(:dependency_name) { "longman/telegram-bot" }
       let(:dependency_version) { "2.1.5" }
@@ -528,7 +528,7 @@
 
       it { is_expected.to be_nil }
 
-      it "version conflict logs an error" do
+      it "logs an error" do
         allow(Dependabot.logger).to receive(:error)
         Dependabot.logger.error
         expect(Dependabot.logger).to have_received(:error).once
@@ -547,12 +547,12 @@
       end
     end
 
-    context "missing native extension logs an error" do
-      let(:dependency_name) { "robaiken/missing-ext" }
-      let(:dependency_version) { "1.0.0" }
+    context "missing native extension" do
+      let(:dependency_name) { "phpunit/php-code-coverage" }
+      let(:dependency_version) { "11.0.0" }
       let(:requirements) do
         [{
-          requirement: "1.0.*",
+          requirement: "11.0.*",
           file: "composer.json",
           groups: ["runtime"],
           source: { type: "path" }
diff --git a/composer/spec/fixtures/packagist_responses/phpunit--php-code-coverage.json b/composer/spec/fixtures/packagist_responses/phpunit--php-code-coverage.json
new file mode 100644
index 00000000000..c7e4a51f10f
--- /dev/null
+++ b/composer/spec/fixtures/packagist_responses/phpunit--php-code-coverage.json
@@ -0,0 +1,83 @@
+{
+  "minified": "composer/2.0",
+  "packages": {
+    "phpunit/php-code-coverage": {
+      "name": "phpunit/php-code-coverage",
+      "version": "11.0.0",
+      "source": {
+        "type": "git",
+        "url": "https://github.com/sebastianbergmann/php-code-coverage.git",
+        "reference": "5e238e4b982cb272bf9faeee6f33af83d465d0e2"
+      },
+      "dist": {
+        "type": "zip",
+        "url": "https://api.github.com/repos/sebastianbergmann/php-code-coverage/zipball/5e238e4b982cb272bf9faeee6f33af83d465d0e2",
+        "reference": "5e238e4b982cb272bf9faeee6f33af83d465d0e2",
+        "shasum": ""
+      },
+      "require": {
+        "ext-dom": "*",
+        "ext-libxml": "*",
+        "ext-xmlwriter": "*",
+        "nikic/php-parser": "^5.0",
+        "php": ">=8.2",
+        "phpunit/php-file-iterator": "^5.0",
+        "phpunit/php-text-template": "^4.0",
+        "sebastian/code-unit-reverse-lookup": "^4.0",
+        "sebastian/complexity": "^4.0",
+        "sebastian/environment": "^7.0",
+        "sebastian/lines-of-code": "^3.0",
+        "sebastian/version": "^5.0",
+        "theseer/tokenizer": "^1.2.0"
+      },
+      "require-dev": {
+        "phpunit/phpunit": "^11.0"
+      },
+      "suggest": {
+        "ext-pcov": "PHP extension that provides line coverage",
+        "ext-xdebug": "PHP extension that provides line coverage as well as branch and path coverage"
+      },
+      "type": "library",
+      "extra": {
+        "branch-alias": {
+          "dev-main": "11.0-dev"
+        }
+      },
+      "autoload": {
+        "classmap": [
+          "src/"
+        ]
+      },
+      "notification-url": "https://packagist.org/downloads/",
+      "license": [
+        "BSD-3-Clause"
+      ],
+      "authors": [
+        {
+          "name": "Sebastian Bergmann",
+          "email": "sebastian@phpunit.de",
+          "role": "lead"
+        }
+      ],
+      "description": "Library that provides collection, processing, and rendering functionality for PHP code coverage information.",
+      "homepage": "https://github.com/sebastianbergmann/php-code-coverage",
+      "keywords": [
+        "coverage",
+        "testing",
+        "xunit"
+      ],
+      "support": {
+        "issues": "https://github.com/sebastianbergmann/php-code-coverage/issues",
+        "security": "https://github.com/sebastianbergmann/php-code-coverage/security/policy",
+        "source": "https://github.com/sebastianbergmann/php-code-coverage/tree/11.0.0"
+      },
+      "funding": [
+        {
+          "url": "https://github.com/sebastianbergmann",
+          "type": "github"
+        }
+      ],
+      "time": "2024-02-02T06:03:46+00:00"
+    }
+  }
+}
diff --git a/composer/spec/fixtures/packagist_responses/robaiken--missing-ext.json b/composer/spec/fixtures/packagist_responses/robaiken--missing-ext.json
deleted file mode 100644
index 9366e23fecf..00000000000
--- a/composer/spec/fixtures/packagist_responses/robaiken--missing-ext.json
+++ /dev/null
@@ -1,15 +0,0 @@
-{
-  "content-hash": "004be910b852c8fbdaa4eaa2a408f725",
-  "packages": [],
-  "packages-dev": [],
-  "aliases": [],
-  "minimum-stability": "stable",
-  "stability-flags": [],
-  "prefer-stable": false,
-  "prefer-lowest": false,
-  "platform": {
-    "ext-gmp": "*"
-  },
-  "platform-dev": [],
-  "plugin-api-version": "2.6.0"
-}