(Feat): Initial Commit

internal/config/dot_env_test.go

@@ -0,0 +1,63 @@
+package config_test
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+
+	"allaboutapps.dev/aw/go-starter/internal/config"
+	"allaboutapps.dev/aw/go-starter/internal/util"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestDotEnvOverride(t *testing.T) {
+	assert.Empty(t, os.Getenv("IS_THIS_A_TEST_ENV"))
+
+	orgPsqlUser := os.Getenv("PSQL_USER")
+
+	config.DotEnvTryLoad(
+		filepath.Join(util.GetProjectRootDir(), "/internal/config/testdata/.env1.local"),
+		func(k string, v string) error { t.Setenv(k, v); return nil })
+
+	assert.Equal(t, "yes", os.Getenv("IS_THIS_A_TEST_ENV"))
+	assert.Equal(t, "dotenv_override_psql_user", os.Getenv("PSQL_USER"))
+	assert.Equal(t, orgPsqlUser, os.Getenv("ORIGINAL_PSQL_USER"))
+
+	// override works as expected?
+	config.DotEnvTryLoad(
+		filepath.Join(util.GetProjectRootDir(), "/internal/config/testdata/.env2.local"),
+		func(k string, v string) error { t.Setenv(k, v); return nil })
+
+	assert.Equal(t, "yes still", os.Getenv("IS_THIS_A_TEST_ENV"))
+	assert.NotEqual(t, "dotenv_override_psql_user", os.Getenv("PSQL_USER"))
+	assert.Equal(t, orgPsqlUser, os.Getenv("PSQL_USER"), "Reset to original does not work!")
+}
+
+func TestNoopEnvNotFound(t *testing.T) {
+	assert.NotPanics(t, assert.PanicTestFunc(func() {
+		config.DotEnvTryLoad(
+			filepath.Join(util.GetProjectRootDir(), "/internal/config/testdata/.env.does.not.exist"),
+			func(k string, v string) error { t.Setenv(k, v); return nil },
+		)
+	}), "does not panic on file inexistance")
+}
+
+func TestEmptyEnv(t *testing.T) {
+	assert.NotPanics(t, assert.PanicTestFunc(func() {
+		config.DotEnvTryLoad(
+			filepath.Join(util.GetProjectRootDir(), "/internal/config/testdata/.env.local.sample"),
+			func(k string, v string) error { t.Setenv(k, v); return nil },
+		)
+	}), "does not panic on file inexistance")
+
+	assert.Empty(t, os.Getenv("EMPTY_VARIABLE_INIT"), "should be empty")
+}
+
+func TestPanicsOnEnvMalform(t *testing.T) {
+	assert.Panics(t, assert.PanicTestFunc(func() {
+		config.DotEnvTryLoad(
+			filepath.Join(util.GetProjectRootDir(), "/internal/config/testdata/.env.local.malformed"),
+			func(k string, v string) error { t.Setenv(k, v); return nil },
+		)
+	}), "does panic on file malform")
+}