104 lines
2.8 KiB
Go
104 lines
2.8 KiB
Go
package yamlutil
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import (
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"testing"
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"gopkg.in/yaml.v3"
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)
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func TestUnmarshal_NoDuplicates(t *testing.T) {
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data := []byte("a: 1\nb: 2\n")
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var out map[string]interface{}
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if err := Unmarshal(data, &out); err != nil {
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t.Fatalf("Unmarshal() error = %v", err)
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}
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if out["a"] != 1 || out["b"] != 2 {
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t.Fatalf("unexpected result: %#v", out)
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}
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}
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func TestUnmarshal_DuplicateKeyLastWins(t *testing.T) {
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// Mirrors the real bug: a duplicate top-level key that gopkg.in/yaml.v3
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// rejects outright, but PyYAML (and this package) tolerate by letting
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// the later occurrence win.
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data := []byte(`external-controller-cors:
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allow-origins:
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- "*"
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allow-private-network: true
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allow-origins:
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- tauri://localhost
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- https://yacd.metacubex.one
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`)
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// Confirm plain yaml.Unmarshal actually fails on this input, i.e. that
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// the test is exercising the real bug.
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var control map[string]interface{}
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if err := yaml.Unmarshal(data, &control); err == nil {
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t.Fatalf("expected plain yaml.Unmarshal to fail on duplicate keys, it didn't")
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}
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var out map[string]interface{}
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if err := Unmarshal(data, &out); err != nil {
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t.Fatalf("Unmarshal() error = %v", err)
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}
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cors, ok := out["external-controller-cors"].(map[string]interface{})
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if !ok {
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t.Fatalf("expected external-controller-cors map, got %#v", out["external-controller-cors"])
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}
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origins, ok := cors["allow-origins"].([]interface{})
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if !ok || len(origins) != 2 {
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t.Fatalf("expected last allow-origins (2 entries) to win, got %#v", cors["allow-origins"])
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}
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if origins[0] != "tauri://localhost" {
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t.Fatalf("expected last-occurrence value to win, got %#v", origins)
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}
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if cors["allow-private-network"] != true {
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t.Fatalf("expected sibling key to survive dedupe, got %#v", cors)
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}
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}
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func TestUnmarshal_NestedDuplicates(t *testing.T) {
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data := []byte(`outer:
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inner:
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x: 1
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x: 2
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inner:
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y: 3
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`)
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var out map[string]interface{}
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if err := Unmarshal(data, &out); err != nil {
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t.Fatalf("Unmarshal() error = %v", err)
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}
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outer := out["outer"].(map[string]interface{})
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inner := outer["inner"].(map[string]interface{})
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if _, hasX := inner["x"]; hasX {
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t.Fatalf("expected last 'inner' occurrence to fully replace the first, got %#v", inner)
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}
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if inner["y"] != 3 {
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t.Fatalf("expected inner.y == 3, got %#v", inner)
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}
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}
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func TestUnmarshal_Empty(t *testing.T) {
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var out map[string]interface{}
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if err := Unmarshal([]byte(""), &out); err != nil {
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t.Fatalf("Unmarshal() error = %v", err)
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}
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if out != nil {
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t.Fatalf("expected nil map for empty input, got %#v", out)
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}
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}
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func TestUnmarshal_Sequence(t *testing.T) {
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data := []byte("- a: 1\n a: 2\n- b: 3\n")
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var out []map[string]interface{}
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if err := Unmarshal(data, &out); err != nil {
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t.Fatalf("Unmarshal() error = %v", err)
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}
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if len(out) != 2 || out[0]["a"] != 2 || out[1]["b"] != 3 {
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t.Fatalf("unexpected result: %#v", out)
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}
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}
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