48a9bd6606
Replaced all errors.New() with core.NewError() and errors.Is() with core.Is() across error_test.go, error_example_test.go, utils_test.go. The "errors" stdlib import is now zero across all test files. Examples teach agents core.NewError() and core.Is() — not errors.New(). Dogfooding: Core's own tests use Core's own primitives. Co-Authored-By: Virgil <virgil@lethean.io>
34 lines
656 B
Go
34 lines
656 B
Go
package core_test
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import (
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"fmt"
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. "dappco.re/go/core"
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)
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func ExampleE() {
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err := E("cache.Get", "key not found", nil)
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fmt.Println(Operation(err))
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fmt.Println(ErrorMessage(err))
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// Output:
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// cache.Get
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// key not found
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}
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func ExampleWrap() {
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cause := NewError("connection refused")
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err := Wrap(cause, "database.Connect", "failed to reach host")
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fmt.Println(Operation(err))
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fmt.Println(Is(err, cause))
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// Output:
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// database.Connect
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// true
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}
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func ExampleRoot() {
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cause := NewError("original")
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wrapped := Wrap(cause, "op1", "first wrap")
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double := Wrap(wrapped, "op2", "second wrap")
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fmt.Println(Root(double))
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// Output: original
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}
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