diff --git a/Project.toml b/Project.toml
index 8b84894..0121c42 100644
--- a/Project.toml
+++ b/Project.toml
@@ -11,4 +11,5 @@ InteractiveUtils = "b77e0a4c-d291-57a0-90e8-8db25a27a240"
 LibGit2 = "76f85450-5226-5b5a-8eaa-529ad045b433"
 Mustache = "ffc61752-8dc7-55ee-8c37-f3e9cdd09e70"
 TerminalMenus = "dc548174-15c3-5faf-af27-7997cfbde655"
+Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 URIParser = "30578b45-9adc-5946-b283-645ec420af67"
diff --git a/src/licenses.jl b/src/licenses.jl
index e3bfbeb..a0d1787 100644
--- a/src/licenses.jl
+++ b/src/licenses.jl
@@ -8,7 +8,7 @@ const LICENSES = Dict(
     "GPL-2.0+" => "GNU Public License, Version 2.0+",
     "GPL-3.0+" => "GNU Public License, Version 3.0+",
     "LGPL-2.1+" => "Lesser GNU Public License, Version 2.1+",
-    "LGPL-3.0+" => "Lesser GNU Public License, Version 3.0+"
+    "LGPL-3.0+" => "Lesser GNU Public License, Version 3.0+",
 )
 
 """
@@ -16,16 +16,16 @@ const LICENSES = Dict(
 
 Print the names of all available licenses.
 """
-available_licenses(io::IO) = println(io, join(("$k: $v" for (k, v) in LICENSES), "\n"))
-available_licenses() = available_licenses(STDOUT)
+available_licenses(io::IO) = print(io, join(("$k: $v" for (k, v) in LICENSES), "\n"))
+available_licenses() = available_licenses(stdout)
 
 """
     show_license([io::IO], license::AbstractString) -> Nothing
 
 Print the text of `license`. Errors if the license is not found.
 """
-show_license(io::IO, license::AbstractString) = println(io, read_license(license))
-show_license(license::AbstractString) = show_license(STDOUT, license)
+show_license(io::IO, license::AbstractString) = print(io, read_license(license))
+show_license(license::AbstractString) = show_license(stdout, license)
 
 """
     read_license(license::AbstractString) -> String
diff --git a/src/template.jl b/src/template.jl
index 217310b..8a6587d 100644
--- a/src/template.jl
+++ b/src/template.jl
@@ -1,5 +1,12 @@
 import Base.show
 
+"""
+    dev_dir() -> String
+
+Get the default development directory (~/.julia/dev).
+"""
+dev_dir() = joinpath(first(DEPOT_PATH), "dev")
+
 """
     Template(; kwargs...) -> Template
 
@@ -24,10 +31,10 @@ create a template, you can use [`interactive_template`](@ref) instead.
   license. Supply a string for one author or an array for multiple. Similarly to `user`,
   it will try to take the value of a supplied git config's "user.name" key, then the global
   git config's value, if it is left unset.
-* `years::Union{Integer, AbstractString}=Dates.year(Dates.today())`: Copyright years on the
-  license. Can be supplied by a number, or a string such as "2016 - 2017".
-* `dir::AbstractString=joinpath(first(DEPOT_PATH), "dev")`: Directory in which the package
-  will go. Relative paths are converted to absolute ones at template creation time.
+* `years::Union{Integer, AbstractString}=$(Dates.year(Dates.today()))`: Copyright years on
+  the license. Can be supplied by a number, or a string such as "2016 - 2017".
+* `dir::AbstractString=$(dev_dir())`: Directory in which the package will go. Relative
+  paths are converted to absolute ones at template creation time.
 * `precompile::Bool=true`: Whether or not to enable precompilation in generated packages.
 * `julia_version::VersionNumber=VERSION`: Minimum allowed Julia version.
 * `requirements::Vector{<:AbstractString}=String[]`: Package requirements. If there are
@@ -53,10 +60,10 @@ create a template, you can use [`interactive_template`](@ref) instead.
     function Template(;
         user::AbstractString="",
         host::AbstractString="https://github.com",
-        license::Union{AbstractString, Nothing}="MIT",
+        license::AbstractString="MIT",
         authors::Union{AbstractString, Vector{<:AbstractString}}="",
         years::Union{Integer, AbstractString}=Dates.year(Dates.today()),
-        dir::AbstractString=joinpath(first(DEPOT_PATH), "dev"),
+        dir::AbstractString=dev_dir(),
         precompile::Bool=true,
         julia_version::VersionNumber=VERSION,
         requirements::Vector{<:AbstractString}=String[],
@@ -98,12 +105,12 @@ create a template, you can use [`interactive_template`](@ref) instead.
                 "requirements contains duplicate packages with conflicting versions"
             ))
         elseif diff > 0
-            warn("Removed $(diff) duplicate$(diff == 1 ? "" : "s") from requirements")
+            @warn "Removed $(diff) duplicate$(diff == 1 ? "" : "s") from requirements"
         end
 
         plugin_dict = Dict{DataType, Plugin}(typeof(p) => p for p in plugins)
         if (length(plugins) != length(plugin_dict))
-            warn("Plugin list contained duplicates, only the last of each type was kept")
+            @warn "Plugin list contained duplicates, only the last of each type was kept"
         end
 
         new(
@@ -206,7 +213,7 @@ function interactive_template(; fast::Bool=false)
         io = IOBuffer()
         available_licenses(io)
         licenses = ["" => "", collect(LICENSES)...]
-        menu = RadioMenu(["None", split(String(take!(io)), "\n")...])
+        menu = RadioMenu(String["None", split(String(take!(io)), "\n")...])
         # If the user breaks out of the menu with Ctrl-c, the result is -1, the absolute
         # value of which correponds to no license.
         licenses[abs(request(menu))].first
@@ -235,9 +242,9 @@ function interactive_template(; fast::Bool=false)
     end
 
     kwargs[:dir] = if fast
-        joinpath(first(DEPOT_PATH), "dev")
+        dev_dir()
     else
-        default_dir = "."
+        default_dir = dev_dir()
         print("Enter the path to the package directory [$default_dir]: ")
         dir = readline()
         isempty(dir) ? default_dir : dir
diff --git a/test/interactive/interactive.jl b/test/interactive/interactive.jl
index 51ec178..df4743b 100644
--- a/test/interactive/interactive.jl
+++ b/test/interactive/interactive.jl
@@ -2,30 +2,30 @@
 # which seems to be the case in Travis CI OSX builds.
 # https://travis-ci.org/invenia/PkgTemplates.jl/jobs/267682403#L115
 # https://github.com/nick-paul/TerminalMenus.jl/issues/5
-# This also affects any time we write to STDIN.buffer, because
+# This also affects any time we write to stdin.buffer, because
 # IOStreams do not have that attribute.
 # Therefore, we skip any interactive tests on OSX builds.
 
 @testset "Interactive template creation" begin
-    write(STDIN.buffer, "$me\n\n\r\n\n\n\n\nd")
+    write(stdin.buffer, "$me\n\n\r\n\n\n\n\nd")
     t = interactive_template()
     @test t.user == me
     @test t.host == "github.com"
     @test isempty(t.license)
     @test t.authors == LibGit2.getconfig("user.name", "")
     @test t.years == string(Dates.year(Dates.today()))
-    @test t.dir == Pkg.dir()
+    @test t.dir == default_dir
     @test t.julia_version == VERSION
     @test isempty(t.requirements)
     @test isempty(t.gitconfig)
     @test isempty(t.plugins)
 
     if isempty(LibGit2.getconfig("github.user", ""))
-        write(STDIN.buffer, "\n")
+        write(stdin.buffer, "\n")
         @test_throws ArgumentError t = interactive_template()
     end
 
-    write(STDIN.buffer, "$me\ngitlab.com\n$('\x1b')[B\r$me\n2016\n$test_file\nno\n0.5\nX Y\nkey val val\nkey2 val2\n\n$('\x1b')[B\r$('\x1b')[B\rd\n\n")
+    write(stdin.buffer, "$me\ngitlab.com\n$('\x1b')[B\r$me\n2016\n$test_file\nno\n0.5\nX Y\nkey val val\nkey2 val2\n\n$('\x1b')[B\r$('\x1b')[B\rd\n\n")
     t = interactive_template()
     @test t.user == me
     @test t.host == "gitlab.com"
@@ -41,10 +41,10 @@
     # Like above, not sure which plugins this will generate.
     @test length(t.plugins) == 2
 
-    write(STDIN.buffer, "$me\n\n\r\n\n\n\nA B\n A B\n\nd")
-    @test_warn r".+" interactive_template()
+    write(stdin.buffer, "$me\n\n\r\n\n\n\nA B\nA B\n\nd")
+    @test_logs (:warn, r".+") match_mode=:any interactive_template()
 
-    write(STDIN.buffer, "$me\nd")
+    write(stdin.buffer, "$me\nd")
     t = interactive_template(; fast=true)
     @test t.user == me
     @test t.host == "github.com"
@@ -52,7 +52,7 @@
     @test t.authors == LibGit2.getconfig("user.name", "")
     # I guess this could technically break if it runs on New Year's Eve...
     @test t.years == string(Dates.year(Dates.today()))
-    @test t.dir == Pkg.dir()
+    @test t.dir == default_dir
     @test t.julia_version == VERSION
     @test isempty(t.requirements)
     @test isempty(t.gitconfig)
@@ -62,8 +62,8 @@ end
 
 @testset "Interactive package generation" begin
     cfg = join(("$k $v" for (k, v) in gitconfig), "\n")
-    write(STDIN.buffer, "$me\n\n\r\n\n\n\n$cfg\n\nd")
+    write(stdin.buffer, "$me\n\n\r\n\n\n\n$cfg\n\nd")
     generate_interactive(test_pkg)
-    @test isdir(Pkg.dir(test_pkg))
-    rm(Pkg.dir(test_pkg); force=true, recursive=true)
+    @test isdir(joinpath(default_dir, test_pkg))
+    rm(joinpath(default_dir, test_pkg); force=true, recursive=true)
 end
diff --git a/test/interactive/plugins.jl b/test/interactive/plugins.jl
index ddf3efa..36cf86c 100644
--- a/test/interactive/plugins.jl
+++ b/test/interactive/plugins.jl
@@ -1,90 +1,90 @@
 # These tests are to be skipped in OSX builds, see ./interactive.jl for more info.
 
 @testset "TravisCI" begin
-    write(STDIN.buffer, "\n")
+    write(stdin.buffer, "\n")
     p = interactive(TravisCI)
-    @test get(p.src, "") == joinpath(DEFAULTS_DIR, "travis.yml")
-    write(STDIN.buffer, "$test_file\n")
+    @test p.src == joinpath(DEFAULTS_DIR, "travis.yml")
+    write(stdin.buffer, "$test_file\n")
     p = interactive(TravisCI)
-    @test get(p.src, "") == test_file
-    write(STDIN.buffer, "none\n")
+    @test p.src == test_file
+    write(stdin.buffer, "none\n")
     p = interactive(TravisCI)
-    @test isnull(p.src)
-    write(STDIN.buffer, "$fake_path\n")
+    @test p.src === nothing
+    write(stdin.buffer, "$fake_path\n")
     @test_throws ArgumentError interactive(TravisCI)
     println()
 end
 
 @testset "AppVeyor" begin
-    write(STDIN.buffer, "\n")
+    write(stdin.buffer, "\n")
     p = interactive(AppVeyor)
-    @test get(p.src, "") == joinpath(DEFAULTS_DIR, "appveyor.yml")
-    write(STDIN.buffer, "$test_file\n")
+    @test p.src == joinpath(DEFAULTS_DIR, "appveyor.yml")
+    write(stdin.buffer, "$test_file\n")
     p = interactive(AppVeyor)
-    @test get(p.src, "") == test_file
-    write(STDIN.buffer, "none\n")
+    @test p.src == test_file
+    write(stdin.buffer, "none\n")
     p = interactive(AppVeyor)
-    @test isnull(p.src)
-    write(STDIN.buffer, "$fake_path\n")
+    @test p.src === nothing
+    write(stdin.buffer, "$fake_path\n")
     @test_throws ArgumentError interactive(AppVeyor)
     println()
 end
 
 @testset "GitLabCI" begin
-    write(STDIN.buffer, "\n\n")
+    write(stdin.buffer, "\n\n")
     p = interactive(GitLabCI)
-    @test get(p.src, "") == joinpath(DEFAULTS_DIR, "gitlab-ci.yml")
+    @test p.src == joinpath(DEFAULTS_DIR, "gitlab-ci.yml")
     @test p.view == Dict("GITLABCOVERAGE" => true)
-    write(STDIN.buffer, "$test_file\nno\n")
+    write(stdin.buffer, "$test_file\nno\n")
     p = interactive(GitLabCI)
-    @test get(p.src, "") == test_file
+    @test p.src == test_file
     @test p.view == Dict("GITLABCOVERAGE" => false)
-    write(STDIN.buffer, "none\n\n")
+    write(stdin.buffer, "none\n\n")
     p = interactive(GitLabCI)
-    @test isnull(p.src)
-    write(STDIN.buffer, "$fake_path\n\n")
+    @test p.src === nothing
+    write(stdin.buffer, "$fake_path\n\n")
     @test_throws ArgumentError interactive(GitLabCI)
     println()
 end
 
 @testset "CodeCov" begin
-    write(STDIN.buffer, "\n")
+    write(stdin.buffer, "\n")
     p = interactive(CodeCov)
-    @test isnull(p.src)
-    write(STDIN.buffer, "$test_file\n")
+    @test p.src === nothing
+    write(stdin.buffer, "$test_file\n")
     p = interactive(CodeCov)
-    @test get(p.src, "") == test_file
-    write(STDIN.buffer, "none\n")
+    @test p.src == test_file
+    write(stdin.buffer, "none\n")
     p = interactive(CodeCov)
-    @test isnull(p.src)
-    write(STDIN.buffer, "$fake_path\n")
+    @test p.src === nothing
+    write(stdin.buffer, "$fake_path\n")
     @test_throws ArgumentError interactive(CodeCov)
     println()
 end
 
 @testset "Coveralls" begin
-    write(STDIN.buffer, "\n")
+    write(stdin.buffer, "\n")
     p = interactive(Coveralls)
-    @test isnull(p.src)
-    write(STDIN.buffer, "$test_file\n")
+    @test p.src === nothing
+    write(stdin.buffer, "$test_file\n")
     p = interactive(Coveralls)
-    @test get(p.src, "") == test_file
-    write(STDIN.buffer, "none\n")
+    @test p.src == test_file
+    write(stdin.buffer, "none\n")
     p = interactive(Coveralls)
-    @test isnull(p.src)
-    write(STDIN.buffer, "$fake_path\n")
+    @test p.src === nothing
+    write(stdin.buffer, "$fake_path\n")
     @test_throws ArgumentError interactive(Coveralls)
     println()
 end
 
 @testset "GitHubPages" begin
-    write(STDIN.buffer, "\n")
+    write(stdin.buffer, "\n")
     p = interactive(GitHubPages)
     @test isempty(p.assets)
-    write(STDIN.buffer, "$test_file\n")
+    write(stdin.buffer, "$test_file\n")
     p = interactive(GitHubPages)
     @test p.assets == [test_file]
-    write(STDIN.buffer, "$fake_path\n")
+    write(stdin.buffer, "$fake_path\n")
     @test_throws ArgumentError interactive(GitHubPages)
     println()
 end
diff --git a/test/plugins/appveyor.jl b/test/plugins/appveyor.jl
index ef0a9e6..46276da 100644
--- a/test/plugins/appveyor.jl
+++ b/test/plugins/appveyor.jl
@@ -7,7 +7,7 @@ pkg_dir = joinpath(temp_dir, test_pkg)
     @testset "Plugin creation" begin
         p = AppVeyor()
         @test isempty(p.gitignore)
-        @test get(p.src, "") == joinpath(PkgTemplates.DEFAULTS_DIR, "appveyor.yml")
+        @test p.src == joinpath(PkgTemplates.DEFAULTS_DIR, "appveyor.yml")
         @test p.dest == ".appveyor.yml"
         @test p.badges == [
             Badge(
@@ -18,9 +18,9 @@ pkg_dir = joinpath(temp_dir, test_pkg)
         ]
         @test isempty(p.view)
         p = AppVeyor(; config_file=nothing)
-        @test isnull(p.src)
+        @test p.src === nothing
         p = AppVeyor(; config_file=test_file)
-        @test get(p.src, "") == test_file
+        @test p.src == test_file
         @test_throws ArgumentError AppVeyor(; config_file=fake_path)
     end
 
diff --git a/test/plugins/codecov.jl b/test/plugins/codecov.jl
index e4db4bf..e410363 100644
--- a/test/plugins/codecov.jl
+++ b/test/plugins/codecov.jl
@@ -7,7 +7,7 @@ pkg_dir = joinpath(temp_dir, test_pkg)
     @testset "Plugin creation" begin
         p = CodeCov()
         @test p.gitignore == ["*.jl.cov", "*.jl.*.cov", "*.jl.mem"]
-        @test isnull(p.src)
+        @test p.src === nothing
         @test p.dest == ".codecov.yml"
         @test p.badges == [
             Badge(
@@ -18,9 +18,9 @@ pkg_dir = joinpath(temp_dir, test_pkg)
         ]
         @test isempty(p.view)
         p = CodeCov(; config_file=nothing)
-        @test isnull(p.src)
+        @test p.src === nothing
         p = CodeCov(; config_file=test_file)
-        @test get(p.src, "") == test_file
+        @test p.src == test_file
         @test_throws ArgumentError CodeCov(; config_file=fake_path)
     end
 
diff --git a/test/plugins/coveralls.jl b/test/plugins/coveralls.jl
index fabce93..3b257c2 100644
--- a/test/plugins/coveralls.jl
+++ b/test/plugins/coveralls.jl
@@ -7,7 +7,7 @@ pkg_dir = joinpath(temp_dir, test_pkg)
     @testset "Plugin creation" begin
         p = Coveralls()
         @test p.gitignore == ["*.jl.cov", "*.jl.*.cov", "*.jl.mem"]
-        @test isnull(p.src)
+        @test p.src === nothing
         @test p.dest == ".coveralls.yml"
         @test p.badges == [
             Badge(
@@ -18,9 +18,9 @@ pkg_dir = joinpath(temp_dir, test_pkg)
         ]
         @test isempty(p.view)
         p = Coveralls(; config_file=nothing)
-        @test isnull(p.src)
+        @test p.src === nothing
         p = Coveralls(; config_file=test_file)
-        @test get(p.src, "") == test_file
+        @test p.src == test_file
         @test_throws ArgumentError Coveralls(; config_file=fake_path)
     end
 
diff --git a/test/plugins/gitlabci.jl b/test/plugins/gitlabci.jl
index 732ac62..905859d 100644
--- a/test/plugins/gitlabci.jl
+++ b/test/plugins/gitlabci.jl
@@ -7,7 +7,7 @@ pkg_dir = joinpath(temp_dir, test_pkg)
     @testset "Plugin creation" begin
         p = GitLabCI()
         @test p.gitignore == ["*.jl.cov", "*.jl.*.cov", "*.jl.mem"]
-        @test get(p.src, "") == joinpath(PkgTemplates.DEFAULTS_DIR, "gitlab-ci.yml")
+        @test p.src == joinpath(PkgTemplates.DEFAULTS_DIR, "gitlab-ci.yml")
         @test p.dest == ".gitlab-ci.yml"
         @test p.badges == [
 			Badge(
@@ -23,9 +23,9 @@ pkg_dir = joinpath(temp_dir, test_pkg)
         ]
         @test p.view == Dict("GITLABCOVERAGE" => true)
         p = GitLabCI(; config_file=nothing)
-        @test isnull(p.src)
+        @test p.src === nothing
         p = GitLabCI(; config_file=test_file)
-        @test get(p.src, "") == test_file
+        @test p.src == test_file
         @test_throws ArgumentError GitLabCI(; config_file=fake_path)
 		p = GitLabCI(; coverage=false)
 		@test p.badges == [
diff --git a/test/plugins/travisci.jl b/test/plugins/travisci.jl
index 4b2409e..530a3a1 100644
--- a/test/plugins/travisci.jl
+++ b/test/plugins/travisci.jl
@@ -7,7 +7,7 @@ pkg_dir = joinpath(temp_dir, test_pkg)
     @testset "Plugin creation" begin
         p = TravisCI()
         @test isempty(p.gitignore)
-        @test get(p.src, "") == joinpath(PkgTemplates.DEFAULTS_DIR, "travis.yml")
+        @test p.src == joinpath(PkgTemplates.DEFAULTS_DIR, "travis.yml")
         @test p.dest == ".travis.yml"
         @test p.badges == [
             Badge(
@@ -18,9 +18,9 @@ pkg_dir = joinpath(temp_dir, test_pkg)
         ]
         @test isempty(p.view)
         p = TravisCI(; config_file=nothing)
-        @test isnull(p.src)
+        @test p.src === nothing
         p = TravisCI(; config_file=test_file)
-        @test get(p.src, "") == test_file
+        @test p.src == test_file
         @test_throws ArgumentError TravisCI(; config_file=fake_path)
     end
 
diff --git a/test/runtests.jl b/test/runtests.jl
index c4fbac2..0bc2150 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -1,5 +1,7 @@
 using PkgTemplates
-using Base.Test
+using Test
+using Dates
+using LibGit2
 
 import PkgTemplates: badges, version_floor, substitute, read_license, gen_file, gen_readme,
     gen_tests, gen_license, gen_require, gen_entrypoint, gen_gitignore, gen_plugin,
@@ -7,17 +9,11 @@ import PkgTemplates: badges, version_floor, substitute, read_license, gen_file,
     format, interactive, DEFAULTS_DIR
 
 mktempdir() do temp_dir
-    withenv("JULIA_PKGDIR" => temp_dir) do
-        # We technically don't need to clone METADATA to run tests.
-        if get(ENV, "PKGTEMPLATES_TEST_FAST", "false") == "true"
-            mkdir(joinpath(temp_dir, "v$(version_floor())"))
-        else
-            Pkg.init()
-        end
-        cd(temp_dir) do
-            @testset "PkgTemplates.jl" begin
-                include("tests.jl")
-            end
+    mkdir(joinpath(temp_dir, "dev"))
+    pushfirst!(DEPOT_PATH, temp_dir)
+    cd(temp_dir) do
+        @testset "PkgTemplates.jl" begin
+            include("tests.jl")
         end
     end
 end
diff --git a/test/tests.jl b/test/tests.jl
index 9f7c176..8622be6 100644
--- a/test/tests.jl
+++ b/test/tests.jl
@@ -1,6 +1,6 @@
 struct Foo <: GenericPlugin
     gitignore::Vector{AbstractString}
-    src::Nullable{AbstractString}
+    src::Union{AbstractString, Nothing}
     dest::AbstractString
     badges::Vector{Badge}
     view::Dict{String, Any}
@@ -18,8 +18,9 @@ const gitconfig = Dict(
     "github.user" => "TesterMcTestFace",
 )
 const test_pkg = "TestPkg"
-const fake_path = bin(hash("/this/file/does/not/exist"))
+const fake_path = string(hash("/this/file/does/not/exist"); base=2)
 const test_file = tempname()
+const default_dir = PkgTemplates.dev_dir()
 const template_text = """
             PKGNAME: {{PKGNAME}}
             VERSION: {{VERSION}}}
@@ -37,7 +38,7 @@ write(test_file, template_text)
     @test t.license == "MIT"
     @test t.years == string(Dates.year(Dates.today()))
     @test t.authors == LibGit2.getconfig("user.name", "")
-    @test t.dir == Pkg.dir()
+    @test t.dir == default_dir
     @test t.julia_version == VERSION
     @test isempty(t.gitconfig)
     @test isempty(t.plugins)
@@ -61,7 +62,7 @@ write(test_file, template_text)
 
     t = Template(; user=me, dir=test_file)
     @test t.dir == abspath(test_file)
-    if is_unix()  # ~ means temporary file on Windows, not $HOME.
+    if Sys.isunix()  # ~ means temporary file on Windows, not $HOME.
         t = Template(; user=me, dir="~/$(basename(test_file))")
         @test t.dir == joinpath(homedir(), basename(test_file))
     end
@@ -74,7 +75,7 @@ write(test_file, template_text)
 
     t = Template(; user=me, requirements=["$test_pkg 0.1"])
     @test t.requirements == ["$test_pkg 0.1"]
-    @test_warn r".+" t = Template(; user=me, requirements=[test_pkg, test_pkg])
+    @test_logs (:warn, r".+") t = Template(; user=me, requirements=[test_pkg, test_pkg])
     @test t.requirements == [test_pkg]
     @test_throws ArgumentError Template(;
         user=me,
@@ -102,7 +103,7 @@ write(test_file, template_text)
         [GitHubPages(), TravisCI(), AppVeyor(), CodeCov(), Coveralls()]
     )
 
-    @test_warn r".+" t = Template(;
+    @test_logs (:warn, r".+") t = Template(;
         user=me,
         plugins=[TravisCI(), TravisCI()],
     )
@@ -126,7 +127,7 @@ else
 end
 
 @testset "Show methods" begin
-    pkgdir = replace(joinpath(ENV["JULIA_PKGDIR"], "v$(version_floor())"), homedir(), "~")
+    pkg_dir = replace(default_dir, homedir() => "~")
     buf = IOBuffer()
     t = Template(; user=me, gitconfig=gitconfig)
     show(buf, t)
@@ -136,7 +137,7 @@ end
           → User: $me
           → Host: github.com
           → License: MIT ($(gitconfig["user.name"]) $(Dates.year(now())))
-          → Package directory: $pkgdir
+          → Package directory: $pkg_dir
           → Precompilation enabled: Yes
           → Minimum Julia version: v$(PkgTemplates.version_floor())
           → 0 package requirements
@@ -165,7 +166,7 @@ end
           → User: $me
           → Host: github.com
           → License: None
-          → Package directory: $pkgdir
+          → Package directory: $pkg_dir
           → Precompilation enabled: Yes
           → Minimum Julia version: v$(PkgTemplates.version_floor())
           → 2 package requirements: Bar, Foo
@@ -201,7 +202,7 @@ end
     temp_file = tempname()
     gen_file(temp_file, "Hello, world")
     @test isfile(temp_file)
-    @test readstring(temp_file) == "Hello, world\n"
+    @test read(temp_file, String) == "Hello, world\n"
     rm(temp_file)
 
     @test gen_readme(temp_dir, test_pkg, t) == ["README.md"]
@@ -227,7 +228,7 @@ end
 
     @test gen_gitignore(temp_dir, test_pkg, t) == [".gitignore"]
     @test isfile(joinpath(pkg_dir, ".gitignore"))
-    gitignore = readstring(joinpath(pkg_dir, ".gitignore"))
+    gitignore = read(joinpath(pkg_dir, ".gitignore"), String)
     rm(joinpath(pkg_dir, ".gitignore"))
     @test contains(gitignore, ".DS_Store")
     for p in values(t.plugins)
@@ -278,15 +279,17 @@ end
 @testset "Package generation" begin
     t = Template(; user=me, gitconfig=gitconfig)
     generate(test_pkg, t)
-    @test isfile(Pkg.dir(test_pkg, "LICENSE"))
-    @test isfile(Pkg.dir(test_pkg, "README.md"))
-    @test isfile(Pkg.dir(test_pkg, "REQUIRE"))
-    @test isfile(Pkg.dir(test_pkg, ".gitignore"))
-    @test isdir(Pkg.dir(test_pkg, "src"))
-    @test isfile(Pkg.dir(test_pkg, "src", "$test_pkg.jl"))
-    @test isdir(Pkg.dir(test_pkg, "test"))
-    @test isfile(Pkg.dir(test_pkg, "test", "runtests.jl"))
-    repo = LibGit2.GitRepo(Pkg.dir(test_pkg))
+    pkg_dir = joinpath(default_dir, test_pkg)
+
+    @test isfile(joinpath(pkg_dir, "LICENSE"))
+    @test isfile(joinpath(pkg_dir, "README.md"))
+    @test isfile(joinpath(pkg_dir, "REQUIRE"))
+    @test isfile(joinpath(pkg_dir, ".gitignore"))
+    @test isdir(joinpath(pkg_dir, "src"))
+    @test isfile(joinpath(pkg_dir, "src", "$test_pkg.jl"))
+    @test isdir(joinpath(pkg_dir, "test"))
+    @test isfile(joinpath(pkg_dir, "test", "runtests.jl"))
+    repo = LibGit2.GitRepo(pkg_dir)
     remote = LibGit2.get(LibGit2.GitRemote, repo, "origin")
     branches = map(b -> LibGit2.shortname(first(b)), LibGit2.GitBranchIter(repo))
     @test LibGit2.getconfig(repo, "user.name", "") == gitconfig["user.name"]
@@ -296,20 +299,20 @@ end
     @test in("master", branches)
     @test !in("gh-pages", branches)
     @test !LibGit2.isdirty(repo)
-    rm(Pkg.dir(test_pkg); recursive=true)
+    rm(pkg_dir; recursive=true)
 
     generate(t, test_pkg; ssh=true)  # Test the reversed-arguments method.
-    repo = LibGit2.GitRepo(Pkg.dir(test_pkg))
+    repo = LibGit2.GitRepo(pkg_dir)
     remote = LibGit2.get(LibGit2.GitRemote, repo, "origin")
     @test LibGit2.url(remote) == "git@github.com:$me/$test_pkg.jl.git"
-    rm(Pkg.dir(test_pkg); recursive=true)
+    rm(pkg_dir; recursive=true)
 
     t = Template(; user=me, host="gitlab.com", gitconfig=gitconfig)
     generate(test_pkg, t)
-    repo = LibGit2.GitRepo(Pkg.dir(test_pkg))
+    repo = LibGit2.GitRepo(pkg_dir)
     remote = LibGit2.get(LibGit2.GitRemote, repo, "origin")
     @test LibGit2.url(remote) == "https://gitlab.com/$me/$test_pkg.jl"
-    rm(Pkg.dir(test_pkg); recursive=true)
+    rm(pkg_dir; recursive=true)
 
     temp_dir = mktempdir()
     t = Template(; user=me, dir=temp_dir, gitconfig=gitconfig)
@@ -324,45 +327,45 @@ end
         plugins=[AppVeyor(), GitHubPages(), Coveralls(), CodeCov(), TravisCI()],
     )
     generate(test_pkg, t)
-    @test isdir(joinpath(Pkg.dir(), test_pkg))
-    @test !isfile(Pkg.dir(test_pkg, "LICENSE"))
-    @test isfile(Pkg.dir(test_pkg, ".travis.yml"))
-    @test isfile(Pkg.dir(test_pkg, ".appveyor.yml"))
-    @test isdir(Pkg.dir(test_pkg, "docs"))
-    @test isfile(Pkg.dir(test_pkg, "docs", "make.jl"))
-    @test isdir(Pkg.dir(test_pkg, "docs", "src"))
-    @test isfile(Pkg.dir(test_pkg, "docs", "src", "index.md"))
-    repo = LibGit2.GitRepo(Pkg.dir(test_pkg))
+    @test isdir(pkg_dir)
+    @test !isfile(joinpath(pkg_dir, "LICENSE"))
+    @test isfile(joinpath(pkg_dir, ".travis.yml"))
+    @test isfile(joinpath(pkg_dir, ".appveyor.yml"))
+    @test isdir(joinpath(pkg_dir, "docs"))
+    @test isfile(joinpath(pkg_dir, "docs", "make.jl"))
+    @test isdir(joinpath(pkg_dir, "docs", "src"))
+    @test isfile(joinpath(pkg_dir, "docs", "src", "index.md"))
+    repo = LibGit2.GitRepo(pkg_dir)
     @test LibGit2.getconfig(repo, "user.name", "") == gitconfig["user.name"]
     branches = map(b -> LibGit2.shortname(first(b)), LibGit2.GitBranchIter(repo))
     @test in("gh-pages", branches)
     @test !LibGit2.isdirty(repo)
-    rm(Pkg.dir(test_pkg); recursive=true)
+    rm(pkg_dir; recursive=true)
 
-    mkdir(Pkg.dir(test_pkg))
+    mkdir(pkg_dir)
     @test_throws ArgumentError generate(test_pkg, t)
     generate(test_pkg, t; force=true)
-    @test isfile(Pkg.dir(test_pkg, "README.md"))
-    rm(Pkg.dir(test_pkg); recursive=true)
+    @test isfile(joinpath(pkg_dir, "README.md"))
+    rm(pkg_dir; recursive=true)
 
-    temp_file, fd = mktemp()
-    close(fd)
+    temp_file, io = mktemp()
+    close(io)
     temp_dir = mktempdir()
-    t = Template(; user=me, dir=temp_file, gitconfig=gitconfig)
-    @test_warn r".+" generate(test_pkg, t; backup_dir=temp_dir)
+    t = Template(; user=me, dir=temp_file)
+    @test_logs (:warn, r".+") match_mode=:any generate(test_pkg, t; backup_dir=temp_dir)
     rm(temp_dir; recursive=true)
     temp_dir = mktempdir()
-    t = Template(; user=me, dir=joinpath(temp_file, "file"), gitconfig=gitconfig)
-    @test_warn r".+" generate(test_pkg, t; backup_dir=temp_dir)
+    t = Template(; user=me, dir=joinpath(temp_file, "dir"))
+    @test_logs (:warn, r".+") match_mode=:any generate(test_pkg, t; backup_dir=temp_dir)
     rm(temp_dir; recursive=true)
     rm(temp_file)
 
     t = Template(; user=me, gitconfig=gitconfig, plugins=[GitHubPages()])
     generate(test_pkg, t)
-    readme = readstring(Pkg.dir(test_pkg, "README.md"))
-    index = readstring(Pkg.dir(test_pkg, "docs", "src", "index.md"))
+    readme = read(joinpath(pkg_dir, "README.md"), String)
+    index = read(joinpath(pkg_dir, "docs", "src", "index.md"), String)
     @test readme == index
-    rm(Pkg.dir(test_pkg); recursive=true)
+    rm(pkg_dir; recursive=true)
 end
 
 @testset "Version floor" begin
@@ -435,7 +438,7 @@ end
         @test contains(licenses, "$short: $long")
     end
     @test strip(mit) == strip(read_license("MIT"))
-    @test strip(read_license("MIT")) == strip(readstring(joinpath(LICENSE_DIR, "MIT")))
+    @test strip(read_license("MIT")) == strip(read(joinpath(LICENSE_DIR, "MIT"), String))
     @test_throws ArgumentError read_license(fake_path)
 
     for license in readdir(LICENSE_DIR)