# This file is a Tcl script to test out PNG reading and writing.
# It is organized in the standard fasion for Tcl tests.
#

puts "img::png [package require img::png]"

set pngdata \
{iVBORw0KGgoAAAANSUhEUgAAABAAAAAMCAIAAAGTgppAAAAABGdBTUEAAYagMeiWXwAAAHxJ
REFUKJGVUMERgDAIC54D+HMDmanbuI0zxQ38uYE+uALW66N5UUISqJCE4X52ACBZS2umPkCS
pPjAdZYJCUJy3Q57LLK7vURChdEfeWulqh4dRLa6zhJEE+B0N2OcEFtGVXNYvrQV9JwauH7G
76f+WCQGurv2MCwYvuEFQANGc3uOMFYAAAAASUVORK5CYII=}

test png-1.1 {} {
    catch {image delete i}
    image create photo i -file [file join $tcltest::testsDirectory folder.png]
    i data -format png
} $pngdata
test png-1.2 {} {
    catch {image delete i}
    image create photo i -data $pngdata
    set data [i data -format png]
} $pngdata
test png-1.3 {} {
    i blank
    i put $data
    set data [i data -format png]
} $pngdata
test png-1.4 {} {
    i blank
    i put $data -format png
    set data [i data -format png]
} $pngdata

if {[info tclversion] < 8.0} {
    return
}

test png-2.0 {Binary I/O with PNG images} {
    i blank
    set f [open [file join $tcltest::testsDirectory folder.png] r]
    fconfigure $f -translation binary
    set return [catch {i put [read $f]} msg]
    close $f
    lappend return $msg
} {0 {}}