Add empty string local parser test

Author: philderbeast

cabal-install/parser-tests/Tests/ParserTests.hs

@@ -86,6 +86,7 @@ parserTests =
     , testCase "read local-no-index-repos" testLocalNoIndexRepos
     , testCase "set explicit provenance" testProjectConfigProvenance
     , testCase "read project-config-local-packages" testProjectConfigLocalPackages
+    , testCase "read project-config-local-packages-empty-string" testProjectConfigLocalPackagesEmptyString
     , testCase "read project-config-all-packages" testProjectConfigAllPackages
     , testCase "read project-config-specific-packages" testProjectConfigSpecificPackages
     , testCase "test projectConfigAllPackages concatenation" testAllPackagesConcat
@@ -419,6 +420,14 @@ testProjectConfigLocalPackages = do
     packageConfigTestTestOptions = [toPathTemplate "--some-option", toPathTemplate "42"]
     packageConfigBenchmarkOptions = [toPathTemplate "--some-benchmark-option", toPathTemplate "--another-option"]
 
+testProjectConfigLocalPackagesEmptyString :: Assertion
+testProjectConfigLocalPackagesEmptyString = do
+  (config, legacy) <- readConfig "project-config-local-packages" "cabal.empty-string.project"
+  assertConfigEquals expected config legacy (field . projectConfigLocalPackages . snd . condTreeData)
+  where
+    field = packageConfigTestHumanLog
+    expected = NoFlag
+
 testProjectConfigAllPackages :: Assertion
 testProjectConfigAllPackages = do
   (config, legacy) <- readConfigDefault "project-config-all-packages"

cabal-install/parser-tests/Tests/files/project-config-local-packages/cabal.empty-string.project

@@ -0,0 +1 @@
+test-log: