fix: add support for licenses not found on list (#1540)

Signed-off-by: Avi Deitcher <avi@deitcher.net>

internal/spdxlicense/license_test.go

@@ -9,52 +9,91 @@ import (
 func TestIDParse(t *testing.T) {
 	var tests = []struct {
 		shortName string
-		spdx      string
+		id        string
+		other     string
+		found     bool
 	}{
 		{
 			"GPL-1-only",
 			"GPL-1.0-only",
+			"",
+			true,
 		},
 		{
 			"GPL-2",
 			"GPL-2.0-only",
+			"",
+			true,
 		},
 		{
 			"GPL-2+",
 			"GPL-2.0-or-later",
+			"",
+			true,
 		},
 		{
 			"GPL-3.0.0-or-later",
 			"GPL-3.0-or-later",
+			"",
+			true,
 		},
 		{
 			"GPL-3-with-autoconf-exception",
 			"GPL-3.0-with-autoconf-exception",
+			"",
+			true,
 		},
 		{
 			"CC-by-nc-3-de",
 			"CC-BY-NC-3.0-DE",
+			"",
+			true,
 		},
 		// the below few cases are NOT expected, however, seem unavoidable given the current approach
 		{
 			"w3c-20150513.0.0",
 			"W3C-20150513",
+			"",
+			true,
 		},
 		{
 			"spencer-86.0.0",
 			"Spencer-86",
+			"",
+			true,
 		},
 		{
 			"unicode-dfs-2015.0.0",
 			"Unicode-DFS-2015",
+			"",
+			true,
+		},
+		{
+			"Unknown",
+			"",
+			"Unknown",
+			true,
+		},
+		{
+			"   ",
+			"",
+			"",
+			false,
+		},
+		{
+			"AND",
+			"",
+			"",
+			false,
 		},
 	}
 
 	for _, test := range tests {
 		t.Run(test.shortName, func(t *testing.T) {
-			got, exists := ID(test.shortName)
-			assert.True(t, exists)
-			assert.Equal(t, test.spdx, got)
+			value, other, exists := ID(test.shortName)
+			assert.Equal(t, test.found, exists)
+			assert.Equal(t, test.id, value)
+			assert.Equal(t, test.other, other)
 		})
 	}
 }