add specs

Author: kbukum1

composer/spec/dependabot/composer/update_checker/version_resolver_spec.rb

@@ -167,6 +167,23 @@
           end
         end
       end
+
+      context "when the PHP version is invalid" do
+        let(:project_name) { "php_version_invalid_with_lock_file" }
+        let(:dependency_name) { "phpunit/phpunit" }
+        let(:dependency_version) { "12.1.0" }
+        let(:string_req) { ">=10.0.16, ==12.1.0" }
+        let(:latest_allowable_version) { Gem::Version.new("12.1.0") }
+
+        it "raises a Dependabot::ToolVersionNotSupported error with correct version details" do
+          expect { resolver.latest_resolvable_version }
+            .to raise_error(Dependabot::ToolVersionNotSupported) do |error|
+              expect(error.tool_name).to eq("PHP")
+              expect(error.detected_version).to eq("8.2.28")
+              expect(error.supported_versions).to eq(">=8.3")
+            end
+        end
+      end
     end
 
     context "when updating a subdependency that's not required anymore" do

composer/spec/fixtures/projects/php_version_invalid_with_lock_file/composer.json

@@ -0,0 +1,6 @@
+{
+    "content-hash": "abcdef1234567890abcdef1234567890",
+    "require": {
+        "phpunit/phpunit": ">=10.0.16, ==12.1.0"
+    }
+}