Add spec for PHP imports that should not be considered duplicaton

Author: brynary

Diff for: spec/cc/engine/analyzers/php/main_spec.rb

@@ -163,6 +163,37 @@
         "lines" => { "begin" => 11, "end" => 16 },
       })
     end
+
+    it "ignores namespace and use declarations" do
+      create_source_file("foo.php", <<-EOF)
+<?php
+namespace KeepClear\\Http\\Controllers\\API\\V1;
+use Illuminate\\Http\\Request;
+use KeepClear\\Http\\Controllers\\Controller;
+use KeepClear\\Models\\Comment;
+use KeepClear\\Models\\User;
+use KeepClear\\Models\\Asset;
+use KeepClear\\Traits\\Controllers\\ApiFilter;
+use KeepClear\\Traits\\Controllers\\ApiParseBody;
+use KeepClear\\Traits\\Controllers\\ApiException;
+      EOF
+
+      create_source_file("bar.php", <<-EOF)
+<?php
+namespace KeepClear\\Http\\Controllers\\API\\V1;
+use Illuminate\\Http\\Request;
+use KeepClear\\Http\\Controllers\\Controller;
+use KeepClear\\Models\\Comment;
+use KeepClear\\Models\\User;
+use KeepClear\\Models\\Asset;
+use KeepClear\\Traits\\Controllers\\ApiFilter;
+use KeepClear\\Traits\\Controllers\\ApiParseBody;
+use KeepClear\\Traits\\Controllers\\ApiException;
+      EOF
+
+      issues = run_engine(engine_conf).strip.split("\0")
+      expect(issues).to be_empty
+    end
   end
 
   def engine_conf