[🤖] Add Unit-Tests

2026-04-27 10:46:08 +02:00
parent dad0e3240d
commit 02d6894ec6
116 changed files with 18795 additions and 1 deletions
@@ -0,0 +1,390 @@
+package confext
+
+import (
+	"git.blackforestbytes.com/BlackForestBytes/goext/tst"
+	"testing"
+	"time"
+)
+
+func TestApplyEnvOverridesPrefix(t *testing.T) {
+	type testdata struct {
+		V1 int    `env:"V1"`
+		V2 string `env:"V2"`
+	}
+
+	data := testdata{V1: 1, V2: "x"}
+
+	t.Setenv("MYAPP_V1", "42")
+	t.Setenv("MYAPP_V2", "hello")
+	t.Setenv("V1", "111")
+	t.Setenv("V2", "noprefix")
+
+	err := ApplyEnvOverrides("MYAPP_", &data, ".")
+	tst.AssertNoErr(t, err)
+
+	tst.AssertEqual(t, data.V1, 42)
+	tst.AssertEqual(t, data.V2, "hello")
+}
+
+func TestApplyEnvOverridesUnexportedFieldsIgnored(t *testing.T) {
+	type testdata struct {
+		V1 int `env:"TEST_V1"`
+		v2 int `env:"TEST_V2"`
+	}
+
+	data := testdata{V1: 1, v2: 2}
+
+	t.Setenv("TEST_V1", "11")
+	t.Setenv("TEST_V2", "22")
+
+	err := ApplyEnvOverrides("", &data, ".")
+	tst.AssertNoErr(t, err)
+
+	tst.AssertEqual(t, data.V1, 11)
+	tst.AssertEqual(t, data.v2, 2)
+}
+
+func TestApplyEnvOverridesNoEnvTagIgnored(t *testing.T) {
+	type testdata struct {
+		V1 int `env:"TEST_V1"`
+		V2 int ``
+	}
+
+	data := testdata{V1: 1, V2: 2}
+
+	t.Setenv("TEST_V1", "11")
+	t.Setenv("V2", "22")
+
+	err := ApplyEnvOverrides("", &data, ".")
+	tst.AssertNoErr(t, err)
+
+	tst.AssertEqual(t, data.V1, 11)
+	tst.AssertEqual(t, data.V2, 2)
+}
+
+func TestApplyEnvOverridesDashTagIgnored(t *testing.T) {
+	type testdata struct {
+		V1 int    `env:"TEST_V1"`
+		V2 string `env:"-"`
+	}
+
+	data := testdata{V1: 1, V2: "no"}
+
+	t.Setenv("TEST_V1", "11")
+	t.Setenv("-", "yes")
+
+	err := ApplyEnvOverrides("", &data, ".")
+	tst.AssertNoErr(t, err)
+
+	tst.AssertEqual(t, data.V1, 11)
+	tst.AssertEqual(t, data.V2, "no")
+}
+
+func TestApplyEnvOverridesEnvNotSetKeepsValue(t *testing.T) {
+	type testdata struct {
+		V1 int    `env:"NOT_SET_INT_KEY_XYZ"`
+		V2 string `env:"NOT_SET_STR_KEY_XYZ"`
+	}
+
+	data := testdata{V1: 7, V2: "keep"}
+
+	err := ApplyEnvOverrides("", &data, ".")
+	tst.AssertNoErr(t, err)
+
+	tst.AssertEqual(t, data.V1, 7)
+	tst.AssertEqual(t, data.V2, "keep")
+}
+
+func TestApplyEnvOverridesBoolVariants(t *testing.T) {
+	type testdata struct {
+		B1 bool `env:"B1"`
+		B2 bool `env:"B2"`
+		B3 bool `env:"B3"`
+		B4 bool `env:"B4"`
+		B5 bool `env:"B5"`
+		B6 bool `env:"B6"`
+	}
+
+	data := testdata{}
+
+	t.Setenv("B1", "true")
+	t.Setenv("B2", "false")
+	t.Setenv("B3", "1")
+	t.Setenv("B4", "0")
+	t.Setenv("B5", "  TRUE  ")
+	t.Setenv("B6", "FaLsE")
+
+	err := ApplyEnvOverrides("", &data, ".")
+	tst.AssertNoErr(t, err)
+
+	tst.AssertEqual(t, data.B1, true)
+	tst.AssertEqual(t, data.B2, false)
+	tst.AssertEqual(t, data.B3, true)
+	tst.AssertEqual(t, data.B4, false)
+	tst.AssertEqual(t, data.B5, true)
+	tst.AssertEqual(t, data.B6, false)
+}
+
+func TestApplyEnvOverridesInvalidIntReturnsError(t *testing.T) {
+	type testdata struct {
+		V1 int `env:"BAD_INT"`
+	}
+
+	data := testdata{}
+
+	t.Setenv("BAD_INT", "not_a_number")
+
+	err := ApplyEnvOverrides("", &data, ".")
+	if err == nil {
+		t.Errorf("expected error for invalid int, got nil")
+	}
+}
+
+func TestApplyEnvOverridesInvalidInt8ReturnsError(t *testing.T) {
+	type testdata struct {
+		V1 int8 `env:"BAD_INT8"`
+	}
+
+	data := testdata{}
+
+	t.Setenv("BAD_INT8", "9999")
+
+	err := ApplyEnvOverrides("", &data, ".")
+	if err == nil {
+		t.Errorf("expected error for invalid int8, got nil")
+	}
+}
+
+func TestApplyEnvOverridesInvalidInt32ReturnsError(t *testing.T) {
+	type testdata struct {
+		V1 int32 `env:"BAD_INT32"`
+	}
+
+	data := testdata{}
+
+	t.Setenv("BAD_INT32", "not_an_int32")
+
+	err := ApplyEnvOverrides("", &data, ".")
+	if err == nil {
+		t.Errorf("expected error for invalid int32, got nil")
+	}
+}
+
+func TestApplyEnvOverridesInvalidInt64ReturnsError(t *testing.T) {
+	type testdata struct {
+		V1 int64 `env:"BAD_INT64"`
+	}
+
+	data := testdata{}
+
+	t.Setenv("BAD_INT64", "not_an_int64")
+
+	err := ApplyEnvOverrides("", &data, ".")
+	if err == nil {
+		t.Errorf("expected error for invalid int64, got nil")
+	}
+}
+
+func TestApplyEnvOverridesInvalidDurationReturnsError(t *testing.T) {
+	type testdata struct {
+		V1 time.Duration `env:"BAD_DUR"`
+	}
+
+	data := testdata{}
+
+	t.Setenv("BAD_DUR", "not_a_duration")
+
+	err := ApplyEnvOverrides("", &data, ".")
+	if err == nil {
+		t.Errorf("expected error for invalid duration, got nil")
+	}
+}
+
+func TestApplyEnvOverridesInvalidTimeReturnsError(t *testing.T) {
+	type testdata struct {
+		V1 time.Time `env:"BAD_TIME"`
+	}
+
+	data := testdata{}
+
+	t.Setenv("BAD_TIME", "not_a_time")
+
+	err := ApplyEnvOverrides("", &data, ".")
+	if err == nil {
+		t.Errorf("expected error for invalid time, got nil")
+	}
+}
+
+func TestApplyEnvOverridesInvalidBoolReturnsError(t *testing.T) {
+	type testdata struct {
+		V1 bool `env:"BAD_BOOL"`
+	}
+
+	data := testdata{}
+
+	t.Setenv("BAD_BOOL", "yesno")
+
+	err := ApplyEnvOverrides("", &data, ".")
+	if err == nil {
+		t.Errorf("expected error for invalid bool, got nil")
+	}
+}
+
+func TestApplyEnvOverridesUnsupportedTypeReturnsError(t *testing.T) {
+	type testdata struct {
+		V1 []int `env:"UNSUPPORTED"`
+	}
+
+	data := testdata{}
+
+	t.Setenv("UNSUPPORTED", "1,2,3")
+
+	err := ApplyEnvOverrides("", &data, ".")
+	if err == nil {
+		t.Errorf("expected error for unsupported type, got nil")
+	}
+}
+
+func TestApplyEnvOverridesFloatUnsupportedReturnsError(t *testing.T) {
+	type testdata struct {
+		V1 float64 `env:"UNSUPPORTED_FLOAT"`
+	}
+
+	data := testdata{}
+
+	t.Setenv("UNSUPPORTED_FLOAT", "1.5")
+
+	err := ApplyEnvOverrides("", &data, ".")
+	if err == nil {
+		t.Errorf("expected error for float64, got nil")
+	}
+}
+
+func TestApplyEnvOverridesPointerInvalidReturnsError(t *testing.T) {
+	type testdata struct {
+		V1 *int `env:"PTR_BAD_INT"`
+	}
+
+	data := testdata{}
+
+	t.Setenv("PTR_BAD_INT", "not_a_number")
+
+	err := ApplyEnvOverrides("", &data, ".")
+	if err == nil {
+		t.Errorf("expected error for invalid pointer int, got nil")
+	}
+}
+
+func TestApplyEnvOverridesPointerNotSetStaysNil(t *testing.T) {
+	type testdata struct {
+		V1 *int    `env:"PTR_NOT_SET_KEY_ABC"`
+		V2 *string `env:"PTR_NOT_SET_KEY_DEF"`
+	}
+
+	data := testdata{}
+
+	err := ApplyEnvOverrides("", &data, ".")
+	tst.AssertNoErr(t, err)
+
+	if data.V1 != nil {
+		t.Errorf("expected V1 to remain nil, got %v", *data.V1)
+	}
+	if data.V2 != nil {
+		t.Errorf("expected V2 to remain nil, got %v", *data.V2)
+	}
+}
+
+func TestApplyEnvOverridesAliasBool(t *testing.T) {
+	type aliasbool bool
+
+	type testdata struct {
+		V1 aliasbool `env:"ALIAS_BOOL"`
+	}
+
+	data := testdata{}
+
+	t.Setenv("ALIAS_BOOL", "true")
+
+	err := ApplyEnvOverrides("", &data, ".")
+	tst.AssertNoErr(t, err)
+
+	tst.AssertEqual(t, data.V1, aliasbool(true))
+}
+
+func TestApplyEnvOverridesNestedRecursiveError(t *testing.T) {
+	type subdata struct {
+		V1 int `env:"V1"`
+	}
+	type testdata struct {
+		Sub subdata `env:"SUB"`
+	}
+
+	data := testdata{}
+
+	t.Setenv("SUB.V1", "not_a_number")
+
+	err := ApplyEnvOverrides("", &data, ".")
+	if err == nil {
+		t.Errorf("expected error from nested struct invalid value, got nil")
+	}
+}
+
+func TestApplyEnvOverridesTimeFieldInsideStructIsParsed(t *testing.T) {
+	type testdata struct {
+		T time.Time `env:"MYTIME"`
+	}
+
+	data := testdata{}
+
+	t.Setenv("MYTIME", "2023-01-02T03:04:05Z")
+
+	err := ApplyEnvOverrides("", &data, ".")
+	tst.AssertNoErr(t, err)
+
+	tst.AssertEqual(t, data.T.Equal(time.Date(2023, 1, 2, 3, 4, 5, 0, time.UTC)), true)
+}
+
+func TestApplyEnvOverridesPointerStringAlias(t *testing.T) {
+	type aliasstr string
+
+	type testdata struct {
+		V1 *aliasstr `env:"PTR_ALIAS_STR"`
+	}
+
+	data := testdata{}
+
+	t.Setenv("PTR_ALIAS_STR", "hello")
+
+	err := ApplyEnvOverrides("", &data, ".")
+	tst.AssertNoErr(t, err)
+
+	if data.V1 == nil {
+		t.Fatalf("expected V1 to be set")
+	}
+	tst.AssertEqual(t, *data.V1, aliasstr("hello"))
+}
+
+func TestApplyEnvOverridesEmptyEnvTagOnSubstruct(t *testing.T) {
+	type subdata struct {
+		V1 int `env:"INNER"`
+	}
+	type testdata struct {
+		Sub subdata `env:""`
+	}
+
+	data := testdata{}
+
+	t.Setenv("INNER", "55")
+
+	err := ApplyEnvOverrides("PRE_", &data, "_")
+	tst.AssertNoErr(t, err)
+
+	tst.AssertEqual(t, data.Sub.V1, 0)
+
+	t.Setenv("PRE_INNER", "77")
+
+	err = ApplyEnvOverrides("PRE_", &data, "_")
+	tst.AssertNoErr(t, err)
+
+	tst.AssertEqual(t, data.Sub.V1, 77)
+}