From fee7cde7669bb81140270d32e27e64794e4550da Mon Sep 17 00:00:00 2001
From: Mike Dalessio <mike.dalessio@gmail.com>
Date: Sat, 9 Sep 2023 14:21:18 -0400
Subject: [PATCH] test: backfill coverage for the `#activate` method

---
 test/test_activate.rb | 127 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 127 insertions(+)
 create mode 100644 test/test_activate.rb

diff --git a/test/test_activate.rb b/test/test_activate.rb
new file mode 100644
index 0000000..4be659a
--- /dev/null
+++ b/test/test_activate.rb
@@ -0,0 +1,127 @@
+require File.expand_path('../helper', __FILE__)
+
+class TestActivate < TestCase
+  attr_reader :recipe
+
+  def setup
+    super
+
+    @save_env = %w[PATH CPATH LIBRARY_PATH].inject({}) do |env, var|
+      env.update(var => ENV[var])
+    end
+
+    FileUtils.rm_rf(["tmp", "ports"]) # remove any previous test files
+
+    @recipe = MiniPortile.new("foo", "1.0.0").tap do |recipe|
+      recipe.logger = StringIO.new
+    end
+  end
+
+  def teardown
+    FileUtils.rm_rf(["tmp", "ports"]) # remove any previous test files
+
+    @save_env.each do |var, val|
+      ENV[var] = val
+    end
+
+    super
+  end
+
+  def test_PATH_env_var_when_bin_does_not_exist
+    refute(Dir.exist?(bin_path))
+    refute(path_elements('PATH').include?(bin_path))
+
+    recipe.activate
+
+    refute(path_elements('PATH').include?(bin_path))
+  end
+
+  def test_PATH_env_var_when_bin_exists
+    FileUtils.mkdir_p(bin_path)
+    refute(path_elements('PATH').include?(bin_path))
+
+    recipe.activate
+
+    assert(path_elements('PATH').include?(bin_path))
+  end
+
+  def test_CPATH_env_var_when_include_does_not_exist
+    refute(Dir.exist?(include_path))
+    refute(path_elements('CPATH').include?(include_path))
+
+    recipe.activate
+
+    refute(path_elements('CPATH').include?(include_path))
+  end
+
+  def test_CPATH_env_var_when_include_exists
+    FileUtils.mkdir_p(include_path)
+    refute(path_elements('CPATH').include?(include_path))
+
+    recipe.activate
+
+    assert(path_elements('CPATH').include?(include_path))
+  end
+
+  def test_LIBRARY_PATH_env_var_when_lib_does_not_exist
+    refute(Dir.exist?(lib_path))
+    refute(path_elements('LIBRARY_PATH').include?(lib_path))
+
+    recipe.activate
+
+    refute(path_elements('LIBRARY_PATH').include?(lib_path))
+  end
+
+  def test_LIBRARY_PATH_env_var_when_lib_exists
+    FileUtils.mkdir_p(lib_path)
+    refute(path_elements('LIBRARY_PATH').include?(lib_path))
+
+    recipe.activate
+
+    assert(path_elements('LIBRARY_PATH').include?(lib_path))
+  end
+
+  def test_LDFLAGS_env_var_when_not_cross_compiling
+    FileUtils.mkdir_p(lib_path)
+    assert_equal(recipe.host, recipe.original_host) # assert on setup)
+
+    refute(flag_elements('LDFLAGS').include?("-L#{lib_path}"))
+
+    recipe.activate
+
+    refute(flag_elements('LDFLAGS').include?("-L#{lib_path}"))
+  end
+
+  def test_LDFLAGS_env_var_when_cross_compiling
+    recipe.host = recipe.original_host + "-x" # make them not-equal
+    FileUtils.mkdir_p(lib_path)
+
+    refute(flag_elements('LDFLAGS').include?("-L#{lib_path}"))
+
+    recipe.activate
+
+    assert(flag_elements('LDFLAGS').include?("-L#{lib_path}"))
+  end
+
+  private
+
+  def path_elements(varname)
+    ENV.fetch(varname, "").split(File::PATH_SEPARATOR)
+  end
+
+  def flag_elements(varname)
+    ENV.fetch(varname, "").split
+  end
+
+  def bin_path
+    File.join(recipe.path, "bin")
+  end
+
+  def include_path
+    File.join(recipe.path, "include")
+  end
+
+  def lib_path
+    File.join(recipe.path, "lib")
+  end
+end