1package heif
2
3import (
4	"bytes"
5	"fmt"
6	"os"
7	"testing"
8
9	"github.com/rwcarlsen/goexif/exif"
10	"github.com/rwcarlsen/goexif/tiff"
11)
12
13func TestAll(t *testing.T) {
14	f, err := os.Open("testdata/park.heic")
15	if err != nil {
16		t.Fatal(err)
17	}
18	defer f.Close()
19	h := Open(f)
20
21	// meta
22	_, err = h.getMeta()
23	if err != nil {
24		t.Fatalf("getMeta: %v", err)
25	}
26
27	it, err := h.PrimaryItem()
28	if err != nil {
29		t.Fatalf("PrimaryItem: %v", err)
30	}
31	if want := uint32(49); it.ID != want {
32		t.Errorf("PrimaryIem ID = %v; want %v", it.ID, want)
33	}
34	if it.Location == nil {
35		t.Errorf("Item.Location is nil")
36	}
37	if it.Info == nil {
38		t.Errorf("Item.Info is nil")
39	}
40	if len(it.Properties) == 0 {
41		t.Errorf("Item.Properties is empty")
42	}
43	for _, prop := range it.Properties {
44		t.Logf("  property: %q, %#v", prop.Type(), prop)
45	}
46	if w, h, ok := it.SpatialExtents(); !ok || w == 0 || h == 0 {
47		t.Errorf("no spatial extents found")
48	} else {
49		t.Logf("dimensions: %v x %v", w, h)
50	}
51
52	// exif
53	exbuf, err := h.EXIF()
54	if err != nil {
55		t.Errorf("EXIF: %v", err)
56	} else {
57		const magic = "Exif\x00\x00"
58		if !bytes.HasPrefix(exbuf, []byte(magic)) {
59			t.Errorf("Exif buffer doesn't start with %q: got %q", magic, exbuf)
60		}
61		x, err := exif.Decode(bytes.NewReader(exbuf))
62		if err != nil {
63			t.Fatalf("EXIF decode: %v", err)
64		}
65		got := map[string]string{}
66		if err := x.Walk(walkFunc(func(name exif.FieldName, tag *tiff.Tag) error {
67			got[fmt.Sprint(name)] = fmt.Sprint(tag)
68			return nil
69		})); err != nil {
70			t.Fatalf("EXIF walk: %v", err)
71		}
72		if g, w := len(got), 56; g < w {
73			t.Errorf("saw %v EXIF tags; want at least %v", g, w)
74		}
75		if g, w := got["GPSLongitude"], `["122/1","21/1","3776/100"]`; g != w {
76			t.Errorf("GPSLongitude = %#q; want %#q", g, w)
77		}
78
79	}
80}
81
82func TestRotations(t *testing.T) {
83	f, err := os.Open("testdata/rotate.heic")
84	if err != nil {
85		t.Fatal(err)
86	}
87	defer f.Close()
88	h := Open(f)
89	it, err := h.PrimaryItem()
90	if err != nil {
91		t.Fatalf("PrimaryItem: %v", err)
92	}
93	if r := it.Rotations(); r != 3 {
94		t.Errorf("Rotations = %v; want %v", r, 3)
95	}
96	sw, sh, ok := it.SpatialExtents()
97	if !ok {
98		t.Fatalf("expected spatial extents")
99	}
100	vw, vh, ok := it.VisualDimensions()
101	if !ok {
102		t.Fatalf("expected visual dimensions")
103	}
104	if vw != sh || vh != sw {
105		t.Errorf("visual dimensions = %v, %v; want %v, %v", vw, vh, sh, sw)
106	}
107}
108
109type walkFunc func(exif.FieldName, *tiff.Tag) error
110
111func (f walkFunc) Walk(name exif.FieldName, tag *tiff.Tag) error {
112	return f(name, tag)
113}
114