51 lines
1.8 KiB
Go
51 lines
1.8 KiB
Go
package main
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import (
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"os"
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"path/filepath"
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"reflect"
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"strings"
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"testing"
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)
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// dotenv_test.go pins the .env parsing rules that used to live only in comments:
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// paired quotes (a regression «simplifying to strings.Trim» would corrupt API keys and
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// surface as 401s mid-run) and «do not override an already-set environment».
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func TestParseDotEnvPairedQuotes(t *testing.T) {
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in := strings.Join([]string{
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`A="v1"`, // paired double quotes — strip
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`B='v2'`, // paired single quotes — strip
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`C="v3'`, // MISMATCHED quotes — leave alone
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`D=v4"`, // trailing quote with no pair — keep (the main regression case)
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`E="`, // single quote (n<2) — keep
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`F=""`, // empty pair — empty string
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` G = v7 `, // trim key and value
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`# comment`, // comment — skip
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``, // empty — skip
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`no-equals-line`, // no «=» — skip
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}, "\n")
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got := parseDotEnv(strings.NewReader(in))
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want := []dotenvPair{
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{"A", "v1"}, {"B", "v2"}, {"C", `"v3'`}, {"D", `v4"`}, {"E", `"`}, {"F", ""}, {"G", "v7"},
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}
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if !reflect.DeepEqual(got, want) {
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t.Fatalf("parseDotEnv:\n got %+v\n want %+v", got, want)
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}
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}
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func TestLoadDotEnvDoesNotOverride(t *testing.T) {
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path := filepath.Join(t.TempDir(), ".env")
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if err := os.WriteFile(path, []byte("TM_TEST_SET=from_file\nTM_TEST_UNSET=filled\n"), 0o600); err != nil {
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t.Fatal(err)
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}
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t.Setenv("TM_TEST_SET", "from_env")
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t.Setenv("TM_TEST_UNSET", "") // set to EMPTY counts as unset (frozen behaviour)
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loadDotEnv(path)
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if got := os.Getenv("TM_TEST_SET"); got != "from_env" {
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t.Fatalf("an already-set variable must win over .env, got %q", got)
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}
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if got := os.Getenv("TM_TEST_UNSET"); got != "filled" {
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t.Fatalf("an empty variable is treated as unset (frozen behaviour), got %q", got)
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}
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}
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