Tests: increase the sensitivity of image comparisons, use variants wh… #219

	# Build workflow

	name: CI

	on:
	push:
	branches: [ master ]
	pull_request:
	branches: [ master ]

	# Allows to run this workflow manually from the Actions tab
	workflow_dispatch:

	jobs:

	# Validate wrapper to prevent potential supply chain attack
	gradle-wrapper-validation:

	# Run on Ubuntu which consumes less minutes
	runs-on: ubuntu-latest

	name: Validate Gradle wrapper

	steps:
	- uses: actions/checkout@v4
	- uses: gradle/actions/wrapper-validation@v3

	build:

	# Many tests only pass on Windows
	runs-on: windows-latest

	strategy:
	matrix:
	java: [ '11', '17' ]

	name: Java ${{ matrix.Java }} build

	steps:
	- uses: actions/checkout@v4

	# Set JDK
	- name: Set up JDK
	uses: actions/setup-java@v4
	with:
	java-version: ${{ matrix.java }}
	distribution: 'temurin'

	# Build
	- name: Build with Gradle
	run: >-
	./gradlew build
	-PexcludeTests="SamplesSpec11RenderingTest.testFontArabic,SamplesSpec11RenderingTest.testVerticalText,StyleBypassRenderingTest.testVerticalText"

	# Generate modular javadocs
	- name: Modular javadocs
	run: ./gradlew modularJavadoc

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