[Dependencies] Propagate compat of RuntimeDependency (#298)

Author: giordano

src/Dependencies.jl

@@ -339,7 +339,7 @@ version(d::Dependency) = __version(d.pkg.version)
 
 
 getcompat(d::AbstractDependency) = ""
-getcompat(d::Dependency) = d.compat
+getcompat(d::Union{Dependency,RuntimeDependency}) = d.compat
 
 for (type, type_descr) in ((Dependency, "dependency"), (RuntimeDependency, "runtimedependency"), (BuildDependency, "builddependency"), (HostBuildDependency, "hostdependency"))
     JSON.lower(d::type) = Dict("type" => type_descr,

test/dependencies.jl

@@ -55,7 +55,7 @@ end
     # if build_version and compat don't match, an error should be thrown
     @test_throws ArgumentError Dependency(PackageSpec(; name = name), build_version; compat = "2.0")
 
-    run_dep = RuntimeDependency(PackageSpec(; name))
+    run_dep = RuntimeDependency(PackageSpec(; name); compat="3.14")
     @test RuntimeDependency(name) == run_dep
     @test !is_host_dependency(run_dep)
     @test is_target_dependency(run_dep)
@@ -65,6 +65,7 @@ end
     @test getname(run_dep) == name
     @test getname(PackageSpec(; name)) == name
     @test getpkg(run_dep) == PackageSpec(; name)
+    @test getcompat(run_dep) == "3.14"
     # We should be able to convert a `Vector{RuntimeDependency}` to `Vector{Dependency}`
     @test Dependency[RuntimeDependency(name; compat="~1.8", platforms=[Platform("aarch64", "macos"; cxxstring_abi="cxx03")])] ==
         [Dependency(name; compat="~1.8", platforms=[Platform("aarch64", "macos"; cxxstring_abi="cxx03")])]
@@ -115,7 +116,7 @@ end
         @test dependencify(jdep) == dep
 
         jrun_dep = JSON.lower(run_dep)
-        @test jrun_dep == Dict("type" => "runtimedependency", "name" => name, "uuid" => nothing, "compat" => "", "version-major" => 0x0, "version-minor" => 0x0, "version-patch" => 0x0, "platforms" => ["any"], "top_level" => false)
+        @test jrun_dep == Dict("type" => "runtimedependency", "name" => name, "uuid" => nothing, "compat" => "3.14", "version-major" => 0x0, "version-minor" => 0x0, "version-patch" => 0x0, "platforms" => ["any"], "top_level" => false)
         @test dependencify(jrun_dep) == run_dep
 
         jdep_buildver = JSON.lower(dep_buildver)