Extract some convenience parsing functions

test/Graphics/Fountainhead/MetricsSpec.hs

@@ -0,0 +1,32 @@
+{- This Source Code Form is subject to the terms of the Mozilla Public License,
+   v. 2.0. If a copy of the MPL was not distributed with this file, You can
+   obtain one at https://mozilla.org/MPL/2.0/. -}
+
+{-# LANGUAGE OverloadedStrings #-}
+
+module Graphics.Fountainhead.MetricsSpec
+    ( spec
+    ) where
+
+import Graphics.Fountainhead.Metrics
+import Test.Hspec (Spec, describe, it, shouldBe)
+
+spec :: Spec
+spec =
+    describe "collectMetrics" $
+        it "collects information from the name table" $ do
+            let expected = FontDescriptor
+                    { fontName = "fontName"
+                    , flags = []
+                    , fullName = "fullName"
+                    , familyName = "familyName"
+                    , weight = "weight"
+                    , fontBBox =  FontBBox 0 0 0 0
+                    , version = "1.0.0"
+                    , notice = "Notice"
+                    , encodingScheme = "encodingScheme"
+                    , isFixedPitch = False
+                    , ascender = 0
+                    , descender = 0
+                    }
+             in collectMetrics `shouldBe` expected

test/Spec.hs

@@ -0,0 +1,5 @@
+{- This Source Code Form is subject to the terms of the Mozilla Public License,
+   v. 2.0. If a copy of the MPL was not distributed with this file, You can
+   obtain one at https://mozilla.org/MPL/2.0/. -}
+
+{-# OPTIONS_GHC -F -pgmF hspec-discover #-}