From 8f5bee1d51740071ce532cfa8764b61d62261e88 Mon Sep 17 00:00:00 2001
From: Lucie Anglade <lucie@courtbouillon.org>
Date: Wed, 13 Jul 2022 22:10:12 +0200
Subject: [PATCH] Some tests for max-height on footnote area. Related to #1674.

---
 tests/draw/test_footnotes.py   | 199 +++++++++++++++++++++++++++++++++
 tests/layout/test_footnotes.py |  54 +++++++++
 2 files changed, 253 insertions(+)

diff --git a/tests/draw/test_footnotes.py b/tests/draw/test_footnotes.py
index 0bea2aa7c..dae14dfac 100644
--- a/tests/draw/test_footnotes.py
+++ b/tests/draw/test_footnotes.py
@@ -157,3 +157,202 @@ def test_footnote_with_absolute(assert_pixels):
         }
     </style>
     <div>a<span><mark>d</mark></span></div>''')
+
+
+@assert_no_logs
+def test_footnote_max_height_1(assert_pixels):
+    assert_pixels('''
+        RRRRRRRR_
+        RRRRRRRR_
+        RRRR_____
+        RRRR_____
+        _BBBBBB__
+        _BBBBBB__
+        _________
+        _________
+        _________
+        _________
+        _BBBBBB__
+        _BBBBBB__
+    ''', '''
+    <style>
+        @font-face {src: url(weasyprint.otf); font-family: weasyprint}
+        @page {
+            size: 9px 6px;
+
+            @footnote {
+                margin-left: 1px;
+                max-height: 3px;
+            }
+        }
+        div {
+            color: red;
+            font-family: weasyprint;
+            font-size: 2px;
+            line-height: 1;
+        }
+        div.footnote {
+            float: footnote;
+            color: blue;
+        }
+    </style>
+    <div>ab<div class="footnote">c</div><div class="footnote">d</div></div>
+    <div>ef</div>''')
+
+
+@assert_no_logs
+def test_footnote_max_height_2(assert_pixels):
+    assert_pixels('''
+        RRRRRRRR_
+        RRRRRRRR_
+        _________
+        _________
+        _BBBBBB__
+        _BBBBBB__
+        _________
+        _________
+        _________
+        _________
+        _BBBBBB__
+        _BBBBBB__
+    ''', '''
+    <style>
+        @font-face {src: url(weasyprint.otf); font-family: weasyprint}
+        @page {
+            size: 9px 6px;
+
+            @footnote {
+                margin-left: 1px;
+                max-height: 3px;
+            }
+        }
+        div {
+            color: red;
+            font-family: weasyprint;
+            font-size: 2px;
+            line-height: 1;
+        }
+        div.footnote {
+            float: footnote;
+            color: blue;
+        }
+    </style>
+    <div>ab<div class="footnote">c</div><div class="footnote">d</div></div>''')
+
+
+@assert_no_logs
+def test_footnote_max_height_3(assert_pixels):
+    assert_pixels('''
+        RRRRRRRR_
+        RRRRRRRR_
+        _________
+        _________
+        _________
+        _________
+    ''', '''
+    <style>
+        @font-face {src: url(weasyprint.otf); font-family: weasyprint}
+        @page {
+            size: 9px 6px;
+
+            @footnote {
+                margin-left: 1px;
+                max-height: 0px;
+            }
+        }
+        div {
+            color: red;
+            font-family: weasyprint;
+            font-size: 2px;
+            line-height: 1;
+        }
+        div.footnote {
+            float: footnote;
+            color: blue;
+        }
+    </style>
+    <div>ab<div class="footnote">c</div><div class="footnote">d</div></div>''')
+
+
+@assert_no_logs
+def test_footnote_max_height_4(assert_pixels):
+    assert_pixels('''
+        RRRRRRRR_
+        RRRRRRRR_
+        RRRR_____
+        RRRR_____
+        _BBBBBB__
+        _BBBBBB__
+        RRRR_____
+        RRRR_____
+        _________
+        _________
+        _BBBBBB__
+        _BBBBBB__
+    ''', '''
+    <style>
+        @font-face {src: url(weasyprint.otf); font-family: weasyprint}
+        @page {
+            size: 9px 6px;
+
+            @footnote {
+                margin-left: 1px;
+                max-height: 3px;
+            }
+        }
+        div {
+            color: red;
+            font-family: weasyprint;
+            font-size: 2px;
+            line-height: 1;
+        }
+        div.footnote {
+            float: footnote;
+            color: blue;
+        }
+    </style>
+    <div>ab<div class="footnote">c</div><div class="footnote">d</div></div>
+    <div>ef</div>
+    <div>gh</div>''')
+
+
+@assert_no_logs
+def test_footnote_max_height_5(assert_pixels):
+    assert_pixels('''
+        RRRRRRRRRR
+        RRRRRRRRRR
+        _BBBBBB___
+        _BBBBBB___
+        _BBBBBB___
+        _BBBBBB___
+        RRRR______
+        RRRR______
+        __________
+        __________
+        _BBBBBB___
+        _BBBBBB___
+    ''', '''
+    <style>
+        @font-face {src: url(weasyprint.otf); font-family: weasyprint}
+        @page {
+            size: 10px 6px;
+
+            @footnote {
+                margin-left: 1px;
+                max-height: 4px;
+            }
+        }
+        div {
+            color: red;
+            font-family: weasyprint;
+            font-size: 2px;
+            line-height: 1;
+        }
+        div.footnote {
+            float: footnote;
+            color: blue;
+        }
+    </style>
+    <div>ab<div class="footnote">c</div><div class="footnote">d</div>
+    <div class="footnote">e</div></div>
+    <div>fg</div>''')
diff --git a/tests/layout/test_footnotes.py b/tests/layout/test_footnotes.py
index 8a32ea7a3..0eabf0509 100644
--- a/tests/layout/test_footnotes.py
+++ b/tests/layout/test_footnotes.py
@@ -643,3 +643,57 @@ def test_footnote_repagination():
     assert footnote_marker.children[0].text == '1.'
     assert footnote_textbox.text == 'de'
     assert footnote_area.position_y == 5
+
+
+@assert_no_logs
+def test_footnote_max_height():
+    page1, page2 = render_pages('''
+      <style>
+          @font-face {src: url(weasyprint.otf); font-family: weasyprint}
+          @page {
+              size: 10px 6px;
+
+              @footnote {
+                  margin-left: 1px;
+                  max-height: 4px;
+              }
+          }
+          div {
+              color: red;
+              font-family: weasyprint;
+              font-size: 2px;
+              line-height: 1;
+          }
+          div.footnote {
+              float: footnote;
+              color: blue;
+          }
+      </style>
+      <div>ab<div class="footnote">c</div><div class="footnote">d</div>
+      <div class="footnote">e</div></div>
+      <div>fg</div>''')
+    html1, footnote_area1= page1.children
+    body1, = html1.children
+    div, = body1.children
+    div_textbox, footnote_call1, footnote_call2, footnote_call3 = div.children[0].children
+    assert div_textbox.text == 'ab'
+    assert footnote_call1.children[0].text == '1'
+    assert footnote_call2.children[0].text == '2'
+    assert footnote_call3.children[0].text == '3'
+    footnote_line1, footnote_line2 = footnote_area1.children[0].children
+    footnote_marker1, footnote_content1 = footnote_line1[0].children
+    assert footnote_marker1.children[0].text == '1.'
+    assert footnote_content1.text == 'c'
+    footnote_marker2, footnote_content2 = footnote_line2[0].children
+    assert footnote_marker2.children[0].text == '2.'
+    assert footnote_content2.text == 'd'
+
+    html2, footnote_area2 = page2.children
+    body2, = html2.children
+    div2, = body2.children
+    div_textbox2 = div2.children[0].children
+    assert div_textbox2.text == 'fg'
+    footnote_line3 = footnote_area2.children[0].children
+    footnote_marker3, footnote_content3 = footnote_line3[0].children
+    assert footnote_marker2.children[0].text == '3.'
+    assert footnote_content2.text == 'e'