tests: reorganize and speed up unit tests

1 files changed, 76 insertions, 0 deletions

diff --git a/spec/fs_spec.lua b/spec/fs_spec.lua
new file mode 100644
index 00000000..d5e93c4b
--- /dev/null
+++ b/spec/fs_spec.lua
@@ -0,0 +1,76 @@
+local test_env = require("spec.util.test_env")
+
+local lfs = require("lfs")
+local testing_paths = test_env.testing_paths
+local get_tmp_path = test_env.get_tmp_path
+
+describe("luarocks.fs #integration", function()
+
+   local fs
+
+   describe("fs.download #mock", function()
+      local tmpfile
+      local tmpdir
+
+      lazy_setup(function()
+         test_env.setup_specs(nil, "mock")
+         local cfg = require("luarocks.core.cfg")
+         fs = require("luarocks.fs")
+         cfg.init()
+         fs.init()
+         test_env.mock_server_init()
+      end)
+
+      lazy_teardown(function()
+         test_env.mock_server_done()
+      end)
+
+      after_each(function()
+         if tmpfile then
+            os.remove(tmpfile)
+            tmpfile = nil
+         end
+         if tmpdir then
+            lfs.rmdir(tmpdir)
+            tmpdir = nil
+         end
+      end)
+
+      it("returns true and fetches the url argument into the specified filename", function()
+         tmpfile = get_tmp_path()
+         assert.truthy(fs.download("http://localhost:8080/file/a_rock.lua", tmpfile))
+         local fd = assert(io.open(tmpfile, "r"))
+         local downloadcontent = assert(fd:read("*a"))
+         fd:close()
+         fd = assert(io.open(testing_paths.fixtures_dir .. "/a_rock.lua", "r"))
+         local originalcontent = assert(fd:read("*a"))
+         fd:close()
+         assert.same(downloadcontent, originalcontent)
+      end)
+
+      it("returns true and fetches the url argument into a file whose name matches the basename of the url if the filename argument is not given", function()
+         tmpdir = get_tmp_path()
+         lfs.mkdir(tmpdir)
+         fs.change_dir(tmpdir)
+         assert.truthy(fs.download("http://localhost:8080/file/a_rock.lua"))
+         tmpfile = tmpdir .. "/a_rock.lua"
+         local fd = assert(io.open(tmpfile, "r"))
+         local downloadcontent = assert(fd:read("*a"))
+         fd:close()
+         fd = assert(io.open(testing_paths.fixtures_dir .. "/a_rock.lua", "r"))
+         local originalcontent = assert(fd:read("*a"))
+         fd:close()
+         assert.same(downloadcontent, originalcontent)
+         fs.pop_dir()
+      end)
+
+      it("returns false and does nothing if the url argument contains a nonexistent file", function()
+         tmpfile = get_tmp_path()
+         assert.falsy(fs.download("http://localhost:8080/file/nonexistent", tmpfile))
+      end)
+
+      it("returns false and does nothing if the url argument is invalid", function()
+         assert.falsy(fs.download("invalidurl"))
+      end)
+   end)
+end)