Add w3c multicol tests

DEVSIX-7636

Autoported commit.
Original commit hash: [3995ccd86]

Author: Andrei Stryhelski

itext.tests/itext.html2pdf.tests/itext/html2pdf/css/w3c/css_multicol/BalanceExtremelyTallContentCrashTest.cs

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+/*
+This file is part of the iText (R) project.
+Copyright (c) 1998-2023 Apryse Group NV
+Authors: Apryse Software.
+
+This program is offered under a commercial and under the AGPL license.
+For commercial licensing, contact us at https://itextpdf.com/sales.  For AGPL licensing, see below.
+
+AGPL licensing:
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+using System;
+using iText.Html2pdf.Css.W3c;
+using iText.Html2pdf.Logs;
+using iText.Test;
+using iText.Test.Attributes;
+
+namespace iText.Html2pdf.Css.W3c.Css_multicol {
+    [LogMessage(Html2PdfLogMessageConstant.ELEMENT_DOES_NOT_FIT_CURRENT_AREA, LogLevel = LogLevelConstants.WARN
+        )]
+    public class BalanceExtremelyTallContentCrashTest : W3CCssTest {
+        protected internal override String GetHtmlFileName() {
+            return "balance-extremely-tall-content-crash.html";
+        }
+    }
+}

itext.tests/itext.html2pdf.tests/itext/html2pdf/css/w3c/css_multicol/BalanceOrphansWidows000Test.cs

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+/*
+This file is part of the iText (R) project.
+Copyright (c) 1998-2023 Apryse Group NV
+Authors: Apryse Software.
+
+This program is offered under a commercial and under the AGPL license.
+For commercial licensing, contact us at https://itextpdf.com/sales.  For AGPL licensing, see below.
+
+AGPL licensing:
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+using System;
+using iText.Html2pdf.Css.W3c;
+using iText.Test.Attributes;
+
+namespace iText.Html2pdf.Css.W3c.Css_multicol {
+    [LogMessage(iText.IO.Logs.IoLogMessageConstant.WIDOWS_CONSTRAINT_VIOLATED, Count = 3)]
+    public class BalanceOrphansWidows000Test : W3CCssTest {
+        protected internal override String GetHtmlFileName() {
+            return "balance-orphans-widows-000.html";
+        }
+    }
+}

itext.tests/itext.html2pdf.tests/itext/html2pdf/css/w3c/css_multicol/ColumnCountUsed001Test.cs

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+/*
+This file is part of the iText (R) project.
+Copyright (c) 1998-2023 Apryse Group NV
+Authors: Apryse Software.
+
+This program is offered under a commercial and under the AGPL license.
+For commercial licensing, contact us at https://itextpdf.com/sales.  For AGPL licensing, see below.
+
+AGPL licensing:
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+using System;
+using iText.Html2pdf.Css.W3c;
+
+namespace iText.Html2pdf.Css.W3c.Css_multicol {
+    public class ColumnCountUsed001Test : W3CCssTest {
+        protected internal override String GetHtmlFileName() {
+            return "column-count-used-001.html";
+        }
+    }
+}

itext.tests/itext.html2pdf.tests/itext/html2pdf/css/w3c/css_multicol/ColumnFillBalanceOrthogBlock001Test.cs

@@ -0,0 +1,32 @@
+/*
+This file is part of the iText (R) project.
+Copyright (c) 1998-2023 Apryse Group NV
+Authors: Apryse Software.
+
+This program is offered under a commercial and under the AGPL license.
+For commercial licensing, contact us at https://itextpdf.com/sales.  For AGPL licensing, see below.
+
+AGPL licensing:
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+using System;
+using iText.Html2pdf.Css.W3c;
+
+namespace iText.Html2pdf.Css.W3c.Css_multicol {
+    public class ColumnFillBalanceOrthogBlock001Test : W3CCssTest {
+        protected internal override String GetHtmlFileName() {
+            return "column-fill-balance-orthog-block-001.html";
+        }
+    }
+}

itext.tests/itext.html2pdf.tests/itext/html2pdf/css/w3c/css_multicol/ColumnfillAutoMaxHeight003Test.cs

@@ -0,0 +1,32 @@
+/*
+This file is part of the iText (R) project.
+Copyright (c) 1998-2023 Apryse Group NV
+Authors: Apryse Software.
+
+This program is offered under a commercial and under the AGPL license.
+For commercial licensing, contact us at https://itextpdf.com/sales.  For AGPL licensing, see below.
+
+AGPL licensing:
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+using System;
+using iText.Html2pdf.Css.W3c;
+
+namespace iText.Html2pdf.Css.W3c.Css_multicol {
+    public class ColumnfillAutoMaxHeight003Test : W3CCssTest {
+        protected internal override String GetHtmlFileName() {
+            return "columnfill-auto-max-height-003.html";
+        }
+    }
+}

itext.tests/itext.html2pdf.tests/itext/html2pdf/css/w3c/css_multicol/CompositedUnderClipUnderMulticolTest.cs

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+/*
+This file is part of the iText (R) project.
+Copyright (c) 1998-2023 Apryse Group NV
+Authors: Apryse Software.
+
+This program is offered under a commercial and under the AGPL license.
+For commercial licensing, contact us at https://itextpdf.com/sales.  For AGPL licensing, see below.
+
+AGPL licensing:
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+using System;
+using iText.Html2pdf.Css.W3c;
+
+namespace iText.Html2pdf.Css.W3c.Css_multicol {
+    public class CompositedUnderClipUnderMulticolTest : W3CCssTest {
+        protected internal override String GetHtmlFileName() {
+            return "composited-under-clip-under-multicol.html";
+        }
+    }
+}

itext.tests/itext.html2pdf.tests/itext/html2pdf/css/w3c/css_multicol/EqualGapAndRuleTest.cs

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+/*
+This file is part of the iText (R) project.
+Copyright (c) 1998-2023 Apryse Group NV
+Authors: Apryse Software.
+
+This program is offered under a commercial and under the AGPL license.
+For commercial licensing, contact us at https://itextpdf.com/sales.  For AGPL licensing, see below.
+
+AGPL licensing:
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+using System;
+using iText.Html2pdf.Css.W3c;
+
+namespace iText.Html2pdf.Css.W3c.Css_multicol {
+    public class EqualGapAndRuleTest : W3CCssTest {
+        protected internal override String GetHtmlFileName() {
+            return "equal-gap-and-rule.html";
+        }
+    }
+}

itext.tests/itext.html2pdf.tests/itext/html2pdf/css/w3c/css_multicol/FixedSizeChildWithOverflowTest.cs

@@ -0,0 +1,32 @@
+/*
+This file is part of the iText (R) project.
+Copyright (c) 1998-2023 Apryse Group NV
+Authors: Apryse Software.
+
+This program is offered under a commercial and under the AGPL license.
+For commercial licensing, contact us at https://itextpdf.com/sales.  For AGPL licensing, see below.
+
+AGPL licensing:
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+using System;
+using iText.Html2pdf.Css.W3c;
+
+namespace iText.Html2pdf.Css.W3c.Css_multicol {
+    public class FixedSizeChildWithOverflowTest : W3CCssTest {
+        protected internal override String GetHtmlFileName() {
+            return "fixed-size-child-with-overflow.html";
+        }
+    }
+}

itext.tests/itext.html2pdf.tests/itext/html2pdf/css/w3c/css_multicol/FloatAndBlockTest.cs

@@ -0,0 +1,32 @@
+/*
+This file is part of the iText (R) project.
+Copyright (c) 1998-2023 Apryse Group NV
+Authors: Apryse Software.
+
+This program is offered under a commercial and under the AGPL license.
+For commercial licensing, contact us at https://itextpdf.com/sales.  For AGPL licensing, see below.
+
+AGPL licensing:
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+using System;
+using iText.Html2pdf.Css.W3c;
+
+namespace iText.Html2pdf.Css.W3c.Css_multicol {
+    public class FloatAndBlockTest : W3CCssTest {
+        protected internal override String GetHtmlFileName() {
+            return "float-and-block.html";
+        }
+    }
+}

itext.tests/itext.html2pdf.tests/itext/html2pdf/css/w3c/css_multicol/FloatWithLineAfterSpannerTest.cs

@@ -0,0 +1,37 @@
+/*
+This file is part of the iText (R) project.
+Copyright (c) 1998-2023 Apryse Group NV
+Authors: Apryse Software.
+
+This program is offered under a commercial and under the AGPL license.
+For commercial licensing, contact us at https://itextpdf.com/sales.  For AGPL licensing, see below.
+
+AGPL licensing:
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+using System;
+using iText.Html2pdf.Css.W3c;
+using iText.Html2pdf.Logs;
+using iText.Test;
+using iText.Test.Attributes;
+
+namespace iText.Html2pdf.Css.W3c.Css_multicol {
+    [LogMessage(Html2PdfLogMessageConstant.ELEMENT_DOES_NOT_FIT_CURRENT_AREA, LogLevel = LogLevelConstants.WARN
+        )]
+    public class FloatWithLineAfterSpannerTest : W3CCssTest {
+        protected internal override String GetHtmlFileName() {
+            return "float-with-line-after-spanner.html";
+        }
+    }
+}