Add VersionEqualitiesInPackages test

Author: philderbeast

cabal-testsuite/PackageTests/RequireExplicit/VersionEqualitiesInPackages/a/a.cabal

@@ -0,0 +1,8 @@
+cabal-version: 2.2
+name: a
+version: 0
+
+library
+  build-depends:
+    some-lib ==1.0,
+    b ==0

cabal-testsuite/PackageTests/RequireExplicit/VersionEqualitiesInPackages/b/b.cabal

@@ -0,0 +1,10 @@
+cabal-version: 2.2
+name: b
+version: 0
+
+library
+  build-tool-depends:
+    some-exe:some-exe ==1.0
+  build-depends:
+    some-lib ==1.0,
+    other-lib ==1.0

cabal-testsuite/PackageTests/RequireExplicit/VersionEqualitiesInPackages/cabal.out

@@ -0,0 +1,29 @@
+# cabal v2-update
+Downloading the latest package list from test-local-repo
+# cabal build
+Resolving dependencies...
+Build profile: -w ghc-<GHCVER> -O1
+In order, the following would be built:
+ - other-lib-1.0 (lib) (requires build)
+ - some-exe-1.0 (exe:some-exe) (requires build)
+ - some-lib-1.0 (lib) (requires build)
+ - b-0 (lib) (first run)
+ - a-0 (lib) (first run)
+# cabal build
+Resolving dependencies...
+Build profile: -w ghc-<GHCVER> -O1
+In order, the following would be built:
+ - other-lib-1.0 (lib) (requires build)
+ - some-exe-1.0 (exe:some-exe) (requires build)
+ - some-lib-1.0 (lib) (requires build)
+ - b-0 (lib) (first run)
+ - a-0 (lib) (first run)
+# cabal build
+Resolving dependencies...
+Build profile: -w ghc-<GHCVER> -O1
+In order, the following would be built:
+ - other-lib-1.0 (lib) (requires build)
+ - some-exe-1.0 (exe:some-exe) (requires build)
+ - some-lib-1.0 (lib) (requires build)
+ - b-0 (lib) (first run)
+ - a-0 (lib) (first run)

cabal-testsuite/PackageTests/RequireExplicit/VersionEqualitiesInPackages/cabal.project

@@ -0,0 +1,8 @@
+packages:
+  ./a
+  ./b
+
+constraints:
+    some-lib ==1.0
+  , other-lib ==1.0
+  , some-exe ==1.0

cabal-testsuite/PackageTests/RequireExplicit/VersionEqualitiesInPackages/cabal.test.hs

@@ -0,0 +1,17 @@
+import Test.Cabal.Prelude
+
+
+main = do
+  skipIfOSX "macOS has a different solver output format"
+  -- - - other-lib-1.0 (lib) (requires build)
+  -- - - some-exe-1.0 (exe:some-exe) (requires build)
+  --   - some-lib-1.0 (lib) (requires build)
+  -- + - some-exe-1.0 (exe:some-exe) (requires build)
+  -- + - other-lib-1.0 (lib) (requires build)
+  --   - b-0 (lib) (first run)
+  --   - a-0 (lib) (first run)
+  cabalTest . withRepo "repo" $ do
+    let opts = [ "all", "--dry-run" ]
+    cabal "build" $ opts
+    cabal "build" $ "--reject-unconstrained-dependencies=all" : opts
+    cabal "build" $ "--reject-unconstrained-dependencies=eq" : opts

cabal-testsuite/PackageTests/RequireExplicit/VersionEqualitiesInPackages/repo/other-lib-1.0/other-lib.cabal

@@ -0,0 +1,7 @@
+cabal-version: 2.2
+name: other-lib
+version: 1.0
+
+library
+  exposed-modules:
+    Foo

cabal-testsuite/PackageTests/RequireExplicit/VersionEqualitiesInPackages/repo/some-exe-1.0/some-exe.cabal

@@ -0,0 +1,6 @@
+cabal-version: 2.2
+name: some-exe
+version: 1.0
+
+executable some-exe
+  main-is: Foo.hs

cabal-testsuite/PackageTests/RequireExplicit/VersionEqualitiesInPackages/repo/some-lib-1.0/some-lib.cabal

@@ -0,0 +1,7 @@
+cabal-version: 2.2
+name: some-lib
+version: 1.0
+
+library
+  exposed-modules:
+    Foo