Add a test for installing a dependency with a specific version number (#413)

* Add a test for installing a dependency with a specific version number

* Don't setup broken deps at all with Julia v1.9-10

Author: giordano

test/dependencies.jl

@@ -367,6 +367,42 @@ end
                 end
             end
         end
+
+        @testset "PackageSpec with version" begin
+            # Install a dependency with a specific version number.
+            with_temp_project() do dir
+                prefix = Prefix(dir)
+                dependencies = [
+                    PackageSpec(; name="CMake_jll", version = v"3.24.3")
+                ]
+                platform = Platform("x86_64", "linux"; libc="musl", cxxstring_abi="cxx11")
+                if v"1.9" <= VERSION < v"1.11"
+                    # For reasons I can't understand, in CI on GitHub Actions (and only
+                    # there, can't reproduce the same behaviour locally) the error thrown
+                    # inside the `setup_dependencies` "escapes" the `try` block. For lack of
+                    # time to debug this stupid thing we just mark this step as broken and
+                    # move on, it's really broken anyway.
+                    @test false broken=true
+                else
+                    try
+                        test_setup_dependencies(prefix, dependencies, platform)
+                    catch
+                        if VERSION>=v"1.9"
+                            # This test is expected to be broken on Julia v1.9+
+                            @test false broken=true
+                        else
+                            # For previous versions we don't expect errors and we
+                            # want to see them.
+                            rethrow()
+                        end
+                    end
+                end
+                # The directory contains also executables from CMake dependencies.
+                # Test will fail if `setup_dependencies` above failed.
+                @test readdir(joinpath(destdir(dir, platform), "bin")) == ["c_rehash", "cmake", "cpack", "ctest", "openssl"] broken=VERSION>=v"1.9"
+            end
+        end
+
     end
 end