generated from go/template
8b2c20bfe4
Initialized from gitea.djmil.dev/go/template @ untagged. Module renamed to gitea.djmil.dev/go/io.
51 lines
1.5 KiB
Go
51 lines
1.5 KiB
Go
package greeter_test
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import (
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"testing"
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"gitea.djmil.dev/go/io/internal/greeter"
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"gitea.djmil.dev/go/io/internal/logger"
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"gitea.djmil.dev/go/io/internal/testutil"
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"gitea.djmil.dev/go/io/pkg/result"
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)
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// ── Service (unit tests) ──────────────────────────────────────────────────────
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func TestGreet(t *testing.T) {
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svc := greeter.New(logger.NewNop())
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t.Run("returns personalized greeting", func(t *testing.T) {
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msg, err := svc.Greet("World").Unwrap()
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testutil.NoError(t, err)
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testutil.Equal(t, msg, "Hello, World!")
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})
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t.Run("rejects empty name", func(t *testing.T) {
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testutil.ErrorContains(t, svc.Greet("").Err(), "name must not be empty")
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})
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}
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// ── Manual fake example ───────────────────────────────────────────────────────
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// For consumers that depend on the Greeter interface, write a manual fake.
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// No code generation required — just implement the interface directly.
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type fakeGreeter struct {
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greetFn func(name string) result.Expect[string]
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}
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func (f *fakeGreeter) Greet(name string) result.Expect[string] {
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return f.greetFn(name)
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}
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func TestFakeUsageExample(t *testing.T) {
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fake := &fakeGreeter{
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greetFn: func(name string) result.Expect[string] {
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return result.Ok("Hello, " + name + "!")
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},
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}
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msg, err := fake.Greet("Alice").Unwrap()
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testutil.NoError(t, err)
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testutil.Equal(t, msg, "Hello, Alice!")
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}
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