# coding=utf-8
# tests for the hershey-text extension (hershey.py and hershey.inx)
from lxml import etree

from inkex.tester import ComparisonMixin, InkscapeExtensionTestMixin, TestCase
from inkex.tester.filters import CompareNumericFuzzy, CompareOrderIndependentStyle
from inkex.tester.svg import svg, svg_file, uu_svg

from hershey import Hershey

class HersheyComparisonMixin(ComparisonMixin):
    comparisons_outfile_dict = {} # pairs of args and expected outputs

    def setUp(self):
        self.effect_class = Hershey
        self.compare_filters = [CompareNumericFuzzy(), CompareOrderIndependentStyle()]

        self.comparisons = self.comparisons_outfile_dict.keys()

    def get_compare_outfile(self, args, addout=None):
        ''' get the correct outfile to compare from comparisons_dict;  '''
        return self.data_file('refs', self.comparisons_outfile_dict[args])

class TestHersheyBasic(InkscapeExtensionTestMixin, HersheyComparisonMixin, TestCase):
    compare_file = 'svg/hershey_input.svg' # a huge number of inputs
    comparisons_outfile_dict = {
        # default parameters:
        (): 'hershey.out',
        # same as above, but explicit parameters. same output:
        ('--tab="render"', '--fontface="HersheySans1"', '--preserve="False"'): 'hershey.out',
    }

class TestHersheyTrivialInput(InkscapeExtensionTestMixin, HersheyComparisonMixin, TestCase):
    compare_file = 'svg/hershey_trivial_input.svg'
    comparisons_outfile_dict = {
        # loading a different font:
        ('--fontface="EMSAllure"', ): 'hershey_loadfont.out',
        # using the "other font" option. same output as above:
        ('--fontface="other"', '--otherfont="EMSAllure"'): 'hershey_loadfont.out',
        # tests preserve text option
        ('--fontface="EMSOsmotron"', '--preserve=true'): 'hershey_preservetext.out',
        # tests when just part of the input file is selected
        ('--id=A',): 'hershey_partialselection.out',
    }

class TestHersheyTables(InkscapeExtensionTestMixin, HersheyComparisonMixin, TestCase):
    compare_file = 'svg/default-inkscape-SVG.svg'
    comparisons_outfile_dict = {
        # generates a simple font table:
        ('--tab="utilities"', '--action="sample"', '--text="I am a quick brown fox"'): 'hershey_fonttable.out',
        # generates a simple font table, while testing UTF-8 input
        ('--tab="utilities"', '--action="sample"', '--text="Î âm å qù¡çk brõwñ fø×"'): 'hershey_encoding.out',
        # generates a glyph table in the font "EMSOsmotron"
        ('--tab="utilities"', '--action="table"', '--fontface="other"', '--otherfont="EMSOsmotron"'): 'hershey_glyphtable.out',
        }