178 lines
3.2 KiB
Go
178 lines
3.2 KiB
Go
package metadata
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import (
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"context"
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"testing"
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)
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func TestAppend(t *testing.T) {
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ctx := context.Background()
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ctx = AppendIncomingContext(ctx, "key1", "val1", "key2", "val2")
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md, ok := FromIncomingContext(ctx)
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if !ok {
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t.Fatal("metadata empty")
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}
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if _, ok := md.Get("key1"); !ok {
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t.Fatal("key1 not found")
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}
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}
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func TestPairs(t *testing.T) {
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md, ok := Pairs("key1", "val1", "key2", "val2")
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if !ok {
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t.Fatal("odd number of kv")
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}
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if _, ok = md.Get("key1"); !ok {
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t.Fatal("key1 not found")
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}
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}
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func testCtx(ctx context.Context) {
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md := New(2)
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md.Set("Key1", "Val1_new")
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md.Set("Key3", "Val3")
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SetOutgoingContext(ctx, md)
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}
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func TestPassing(t *testing.T) {
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ctx := context.TODO()
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md1 := New(2)
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md1.Set("Key1", "Val1")
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md1.Set("Key2", "Val2")
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ctx = NewIncomingContext(ctx, md1)
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testCtx(ctx)
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md, ok := FromOutgoingContext(ctx)
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if !ok {
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t.Fatalf("missing metadata from outgoing context")
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}
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if v, ok := md.Get("Key1"); !ok || v != "Val1_new" {
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t.Fatalf("invalid metadata value %#+v", md)
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}
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}
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func TestMerge(t *testing.T) {
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omd := Metadata{
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"key1": "val1",
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}
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mmd := Metadata{
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"key2": "val2",
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}
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nmd := Merge(omd, mmd, true)
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if len(nmd) != 2 {
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t.Fatalf("merge failed: %v", nmd)
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}
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}
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func TestIterator(t *testing.T) {
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md := Metadata{
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"1Last": "last",
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"2First": "first",
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"3Second": "second",
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}
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iter := md.Iterator()
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var k, v string
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for iter.Next(&k, &v) {
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// fmt.Printf("k: %s, v: %s\n", k, v)
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}
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}
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func TestMedataCanonicalKey(t *testing.T) {
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md := New(1)
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md.Set("x-request-id", "12345")
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v, ok := md.Get("x-request-id")
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if !ok {
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t.Fatalf("failed to get x-request-id")
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} else if v != "12345" {
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t.Fatalf("invalid metadata value: %s != %s", "12345", v)
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}
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v, ok = md.Get("X-Request-Id")
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if !ok {
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t.Fatalf("failed to get x-request-id")
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} else if v != "12345" {
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t.Fatalf("invalid metadata value: %s != %s", "12345", v)
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}
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v, ok = md.Get("X-Request-ID")
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if !ok {
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t.Fatalf("failed to get x-request-id")
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} else if v != "12345" {
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t.Fatalf("invalid metadata value: %s != %s", "12345", v)
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}
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}
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func TestMetadataSet(t *testing.T) {
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md := New(1)
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md.Set("Key", "val")
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val, ok := md.Get("Key")
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if !ok {
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t.Fatal("key Key not found")
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}
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if val != "val" {
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t.Errorf("key Key with value val != %v", val)
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}
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}
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func TestMetadataDelete(t *testing.T) {
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md := Metadata{
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"Foo": "bar",
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"Baz": "empty",
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}
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md.Del("Baz")
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_, ok := md.Get("Baz")
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if ok {
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t.Fatal("key Baz not deleted")
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}
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}
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func TestNilContext(t *testing.T) {
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var ctx context.Context
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_, ok := FromContext(ctx)
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if ok {
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t.Fatal("nil context")
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}
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}
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func TestMetadataCopy(t *testing.T) {
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md := Metadata{
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"Foo": "bar",
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"Bar": "baz",
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}
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cp := Copy(md)
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for k, v := range md {
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if cv := cp[k]; cv != v {
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t.Fatalf("Got %s:%s for %s:%s", k, cv, k, v)
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}
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}
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}
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func TestMetadataContext(t *testing.T) {
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md := Metadata{
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"Foo": "bar",
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}
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ctx := NewContext(context.TODO(), md)
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emd, ok := FromContext(ctx)
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if !ok {
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t.Errorf("Unexpected error retrieving metadata, got %t", ok)
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}
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if emd["Foo"] != md["Foo"] {
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t.Errorf("Expected key: %s val: %s, got key: %s val: %s", "Foo", md["Foo"], "Foo", emd["Foo"])
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}
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if i := len(emd); i != 1 {
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t.Errorf("Expected metadata length 1 got %d", i)
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}
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}
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