Tests: Add unit tests for new exiftool tags

internal/meta/json_test.go

@@ -1049,4 +1049,20 @@ func TestJSON(t *testing.T) {
 		assert.Equal(t, "", data.Projection)
 		assert.Equal(t, "", data.ColorProfile)
 	})
+
+	t.Run("iptc-fields-500", func(t *testing.T) {
+		data, err := JSON("testdata/iptc-fields-500.json", "")
+
+		if err != nil {
+			t.Fatal(err)
+		}
+		//t.Logf("all: %+v", data.exif)
+
+		assert.Equal(t, "creator A, creator B", data.Artist)
+		assert.Equal(t, "my image headline", data.Title)
+		assert.Equal(t, "my iptc description", data.Description)
+		assert.Equal(t, "my iptc copyright", data.Copyright)
+		//TODO
+		//assert.Equal(t, "zqdtcxt1q9wrxnur", data.DocumentID)
+	})
 }

internal/meta/testdata/iptc-fields-500.json

@@ -0,0 +1,30 @@
+[{
+  "SourceFile": "iptc-fields-500.jpg",
+  "ExifToolVersion": 12.41,
+  "FileName": "iptc-fields-500.jpg",
+  "Directory": ".",
+  "FileSize": "72 KiB",
+  "FileModifyDate": "2022:05:25 13:39:29+00:00",
+  "FileAccessDate": "2022:05:25 13:58:00+00:00",
+  "FileInodeChangeDate": "2022:05:25 13:58:00+00:00",
+  "FilePermissions": "-rw-rw-r--",
+  "FileType": "JPEG",
+  "FileTypeExtension": "jpg",
+  "MIMEType": "image/jpeg",
+  "CurrentIPTCDigest": "faf6f79bac264b4c90595a44051b1318",
+  "Headline": "my image headline",
+  "ApplicationRecordVersion": 4,
+  "CopyrightNotice": "my iptc copyright",
+  "Caption-Abstract": "my iptc description",
+  "By-line": ["creator A","creator B"],
+  "XMPToolkit": "Image::ExifTool 12.16",
+  "DigitalImageGUID": "zqdtcxt1q9wrxnur",
+  "ImageWidth": 500,
+  "ImageHeight": 375,
+  "EncodingProcess": "Baseline DCT, Huffman coding",
+  "BitsPerSample": 8,
+  "ColorComponents": 3,
+  "YCbCrSubSampling": "YCbCr4:2:0 (2 2)",
+  "ImageSize": "500x375",
+  "Megapixels": 0.188
+}]