media_parser_test.go

package pngstructure

import (
    "fmt"
    "path"
    "testing"

    "io/ioutil"

    "github.com/dsoprea/go-logging"
)

func TestPngMediaParser_ParseFile(t *testing.T) {
    filepath := path.Join(assetsPath, "Selection_058.png")

    pmp := NewPngMediaParser()

    _, err := pmp.ParseFile(filepath)
    log.PanicIf(err)
}

func TestPngMediaParser_LooksLikeFormat(t *testing.T) {
    filepath := path.Join(assetsPath, "libpng.png")

    data, err := ioutil.ReadFile(filepath)
    log.PanicIf(err)

    pmp := NewPngMediaParser()

    if pmp.LooksLikeFormat(data) != true {
        t.Fatalf("not detected as png")
    }
}

func ExamplePngMediaParser_LooksLikeFormat() {
    filepath := path.Join(assetsPath, "libpng.png")

    data, err := ioutil.ReadFile(filepath)
    log.PanicIf(err)

    pmp := NewPngMediaParser()

    isPng := pmp.LooksLikeFormat(data)
    fmt.Printf("%v\n", isPng)

    // Output:
    // true
}