45 lines
1.1 KiB
Go
45 lines
1.1 KiB
Go
package mlog
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import (
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"context"
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. "testing"
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"github.com/mediocregopher/mediocre-go-lib/mtest/massert"
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)
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func TestCtxKV(t *T) {
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ctx := context.Background()
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massert.Fatal(t, massert.Equal(KV{}, CtxKV(ctx)))
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kv := KV{"a": "a"}
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ctx2 := CtxWithKV(ctx, kv)
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massert.Fatal(t, massert.All(
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massert.Equal(KV{}, CtxKV(ctx)),
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massert.Equal(KV{"a": "a"}, CtxKV(ctx2)),
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))
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// changing the kv now shouldn't do anything
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kv["a"] = "b"
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massert.Fatal(t, massert.All(
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massert.Equal(KV{}, CtxKV(ctx)),
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massert.Equal(KV{"a": "a"}, CtxKV(ctx2)),
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))
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// a new CtxWithKV shouldn't affect the previous one
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ctx3 := CtxWithKV(ctx2, KV{"b": "b"})
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massert.Fatal(t, massert.All(
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massert.Equal(KV{}, CtxKV(ctx)),
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massert.Equal(KV{"a": "a"}, CtxKV(ctx2)),
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massert.Equal(KV{"a": "a", "b": "b"}, CtxKV(ctx3)),
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))
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// make sure precedence works
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ctx4 := CtxWithKV(ctx3, KV{"b": "bb"})
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massert.Fatal(t, massert.All(
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massert.Equal(KV{}, CtxKV(ctx)),
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massert.Equal(KV{"a": "a"}, CtxKV(ctx2)),
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massert.Equal(KV{"a": "a", "b": "b"}, CtxKV(ctx3)),
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massert.Equal(KV{"a": "a", "b": "bb"}, CtxKV(ctx4)),
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))
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}
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