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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package fixed
import (
"testing"
)
var testCases = []struct {
x float64
s26_6 string
s52_12 string
floor int
round int
ceil int
}{{
x: 0,
s26_6: "0:00",
s52_12: "0:0000",
floor: 0,
round: 0,
ceil: 0,
}, {
x: 1,
s26_6: "1:00",
s52_12: "1:0000",
floor: 1,
round: 1,
ceil: 1,
}, {
x: 1.25,
s26_6: "1:16",
s52_12: "1:1024",
floor: 1,
round: 1,
ceil: 2,
}, {
x: 2.5,
s26_6: "2:32",
s52_12: "2:2048",
floor: 2,
round: 3,
ceil: 3,
}, {
x: 63 / 64.0,
s26_6: "0:63",
s52_12: "0:4032",
floor: 0,
round: 1,
ceil: 1,
}, {
x: -0.5,
s26_6: "-0:32",
s52_12: "-0:2048",
floor: -1,
round: +0,
ceil: +0,
}, {
x: -4.125,
s26_6: "-4:08",
s52_12: "-4:0512",
floor: -5,
round: -4,
ceil: -4,
}, {
x: -7.75,
s26_6: "-7:48",
s52_12: "-7:3072",
floor: -8,
round: -8,
ceil: -7,
}}
func TestInt26_6(t *testing.T) {
for _, tc := range testCases {
x := Int26_6(tc.x * (1 << 6))
if got, want := x.String(), tc.s26_6; got != want {
t.Errorf("tc.x=%v: String: got %q, want %q", tc.x, got, want)
}
if got, want := x.Floor(), tc.floor; got != want {
t.Errorf("tc.x=%v: Floor: got %v, want %v", tc.x, got, want)
}
if got, want := x.Round(), tc.round; got != want {
t.Errorf("tc.x=%v: Round: got %v, want %v", tc.x, got, want)
}
if got, want := x.Ceil(), tc.ceil; got != want {
t.Errorf("tc.x=%v: Ceil: got %v, want %v", tc.x, got, want)
}
}
}
func TestInt52_12(t *testing.T) {
for _, tc := range testCases {
x := Int52_12(tc.x * (1 << 12))
if got, want := x.String(), tc.s52_12; got != want {
t.Errorf("tc.x=%v: String: got %q, want %q", tc.x, got, want)
}
if got, want := x.Floor(), tc.floor; got != want {
t.Errorf("tc.x=%v: Floor: got %v, want %v", tc.x, got, want)
}
if got, want := x.Round(), tc.round; got != want {
t.Errorf("tc.x=%v: Round: got %v, want %v", tc.x, got, want)
}
if got, want := x.Ceil(), tc.ceil; got != want {
t.Errorf("tc.x=%v: Ceil: got %v, want %v", tc.x, got, want)
}
}
}
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