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43 lines
1.4 KiB
Go
43 lines
1.4 KiB
Go
package config
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import (
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"os"
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"path/filepath"
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"testing"
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)
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func TestPostgresDSNPrecedence(t *testing.T) {
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dir := t.TempDir()
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cfgPath := filepath.Join(dir, "config.json")
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os.WriteFile(cfgPath, []byte(`{"database":{"host":"10.1.2.3","port":6000,"user":"u","password":"p","dbname":"d","sslmode":"require"}}`), 0o644)
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t.Setenv("ARTEX_CONFIG", cfgPath)
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// no env DSN → built from config file fields
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t.Setenv("ARTEX_PG_DSN", "")
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got, _, err := PostgresDSN()
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want := "postgres://u:p@10.1.2.3:6000/d?sslmode=require"
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if err != nil || got != want {
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t.Fatalf("from file: got %q err %v want %q", got, err, want)
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}
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// env wins over config file
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t.Setenv("ARTEX_PG_DSN", "postgres://envwins/x")
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if got, _, err := PostgresDSN(); err != nil || got != "postgres://envwins/x" {
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t.Fatalf("env should win, got %q err %v", got, err)
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}
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// no env, no file → error (no built-in default)
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t.Setenv("ARTEX_PG_DSN", "")
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t.Setenv("ARTEX_CONFIG", filepath.Join(dir, "nope.json"))
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if got, _, err := PostgresDSN(); err == nil {
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t.Fatalf("missing config should error, got %q", got)
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}
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// full dsn in config file is used verbatim
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os.WriteFile(cfgPath, []byte(`{"database":{"dsn":"postgres://full/dsn"}}`), 0o644)
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t.Setenv("ARTEX_CONFIG", cfgPath)
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if got, _, err := PostgresDSN(); err != nil || got != "postgres://full/dsn" {
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t.Fatalf("file dsn verbatim, got %q err %v", got, err)
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}
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}
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