From b927218b5690fe7cd4080af53831311d59db6987 Mon Sep 17 00:00:00 2001
From: Brad Richardson <everythingfunctional@protonmail.com>
Date: Thu, 15 Oct 2020 11:52:11 -0500
Subject: Add test for submodule source file name

---
 bootstrap/src/BuildModel.hs                            |  4 +++-
 bootstrap/unit_test/SubmoduleSourceConstructionTest.hs | 17 ++++++++++++++---
 2 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/bootstrap/src/BuildModel.hs b/bootstrap/src/BuildModel.hs
index f784624..9a9866a 100644
--- a/bootstrap/src/BuildModel.hs
+++ b/bootstrap/src/BuildModel.hs
@@ -52,6 +52,8 @@ data Source =
     , moduleProducesSmod :: Bool
     }
   | Submodule
+    { submoduleSourceFileName :: FilePath
+    }
 
 processRawSource :: RawSource -> Source
 processRawSource rawSource =
@@ -74,7 +76,7 @@ processRawSource rawSource =
             , moduleProducesSmod = hasModuleSubprogramDeclaration parsedContents
             }
           else if hasSubmoduleDeclaration parsedContents
-            then Submodule
+            then Submodule { submoduleSourceFileName = sourceFileName }
             else undefined
 
 pathSeparatorsToUnderscores :: FilePath -> FilePath
diff --git a/bootstrap/unit_test/SubmoduleSourceConstructionTest.hs b/bootstrap/unit_test/SubmoduleSourceConstructionTest.hs
index 96492fb..6158939 100644
--- a/bootstrap/unit_test/SubmoduleSourceConstructionTest.hs
+++ b/bootstrap/unit_test/SubmoduleSourceConstructionTest.hs
@@ -9,7 +9,9 @@ import           BuildModel                     ( RawSource(..)
                                                 )
 import           Hedge                          ( Result
                                                 , Test
+                                                , assertEquals
                                                 , assertThat
+                                                , fail'
                                                 , givenInput
                                                 , then'
                                                 , whenTransformed
@@ -20,9 +22,13 @@ test :: IO (Test ())
 test = return $ givenInput
   "a submodule"
   exampleSubmodule
-  [ whenTransformed "processed to a source"
-                    processRawSource
-                    [then' "it is a Submodule" checkIsSubmodule]
+  [ whenTransformed
+      "processed to a source"
+      processRawSource
+      [ then' "it is a Submodule" checkIsSubmodule
+      , then' "its source file name is the same as the original"
+              checkSubmoduleSourceFileName
+      ]
   ]
 
 exampleSubmodule :: RawSource
@@ -35,3 +41,8 @@ submoduleSourceFileName' = "some" </> "file" </> "somewhere.f90"
 checkIsSubmodule :: Source -> Result
 checkIsSubmodule Submodule{} = assertThat True
 checkIsSubmodule _           = assertThat False
+
+checkSubmoduleSourceFileName :: Source -> Result
+checkSubmoduleSourceFileName s@(Submodule{}) =
+  assertEquals submoduleSourceFileName' $ submoduleSourceFileName s
+checkSubmoduleSourceFileName _ = fail' "wasn't a Submodule"
-- 
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