testing

Testing helpers

Build configuration in tests without touching the filesystem. Use source.NewMap to provide values from a plain Go map, and synthratest.Config to get a ready-to-use *synthra.Config that fails the test on construction errors.

Run the tests

cd examples/testing && go test -v

go run . prints a short pointer to the tests -- the real content is in main_test.go.

Example

cfg := synthratest.Config(t,
    synthra.WithSource(source.NewMap(map[string]any{
        "server": map[string]any{"port": 8080, "host": "127.0.0.1"},
    })),
)
require.NoError(t, cfg.Load(t.Context()))
port, err := cfg.Int("server.port")

Key ideas

1. No files in tests -- source.NewMap keeps tests fast, deterministic, and free from path issues.
2. Test helper -- synthratest.Config calls t.Fatal on error so your test stays clean.
3. Same API -- the config object you get back works exactly like a production one.