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pointer_test.go
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106 lines (84 loc) · 2 KB
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package rig
import "testing"
func TestPointer(t *testing.T) {
t.Run("Int", func(t *testing.T) {
var i *int
p := Pointer(Int(i, "i", "I", "integer"), &i)
s := p.String()
expectedNil := "<nil>"
if s != expectedNil {
t.Errorf("Pointer(Int(nil)).String() = %q, expected %q", s, expectedNil)
return
}
s = "42"
err := p.Set(s)
if err != nil {
t.Errorf("Pointer.Set(%q): unexpected error: %v", s, err)
return
}
expected := 42
if *i != expected {
t.Errorf("Pointer.Set(%q) = %d, expected %d", s, *i, expected)
}
})
t.Run("Int with default", func(t *testing.T) {
var i = new(int)
*i = 21
p := Pointer(Int(i, "i", "I", "integer"), &i)
s := p.String()
expectedS := "21"
if s != expectedS {
t.Errorf("Pointer(Int(nil)).String() = %q, expected %q", s, expectedS)
return
}
s = "42"
err := p.Set(s)
if err != nil {
t.Errorf("Pointer.Set(%q): unexpected error: %v", s, err)
return
}
expected := 42
if *i != expected {
t.Errorf("Pointer.Set(%q) = %d, expected %d", s, *i, expected)
}
})
t.Run("Var", func(t *testing.T) {
var v *stringValue
p := Pointer(Var(v, "v", "V", "var"), &v)
s := p.String()
expectedNil := "<nil>"
if s != expectedNil {
t.Errorf("Pointer(Var(nil)).String() = %q, expected %q", s, expectedNil)
return
}
s = "foo"
err := p.Set(s)
if err != nil {
t.Errorf("Pointer.Set(%q): unexpected error: %v", s, err)
return
}
if string(*v) != s {
t.Errorf("Pointer.Set(%q) = %q, expected %q", s, *v, s)
}
})
t.Run("Var with default", func(t *testing.T) {
var v = new(stringValue)
*v = "foo"
p := Pointer(Var(v, "v", "V", "var"), &v)
s := p.String()
expectedNil := "foo"
if s != expectedNil {
t.Errorf("Pointer(Var(nil)).String() = %q, expected %q", s, expectedNil)
return
}
s = "bar"
err := p.Set(s)
if err != nil {
t.Errorf("Pointer.Set(%q): unexpected error: %v", s, err)
return
}
if string(*v) != s {
t.Errorf("Pointer.Set(%q) = %q, expected %q", s, *v, s)
}
})
}