Add a float image plugin test

Author: juoceano

tests/plugins/test_float_image.py

@@ -0,0 +1,44 @@
+# -*- coding: utf-8 -*-
+"""
+Test FloatImage
+---------------
+"""
+
+from jinja2 import Template
+
+import folium
+from folium import plugins
+
+
+def test_float_image():
+    m = folium.Map([45., 3.], zoom_start=4)
+    url = 'https://raw.githubusercontent.com/SECOORA/static_assets/master/maps/img/rose.png'
+    szt = plugins.FloatImage(url, bottom=60, left=70)
+    m.add_child(szt)
+    m._repr_html_()
+
+    out = m._parent.render()
+
+    # Verify that the div has been created.
+    tmpl = Template("""
+        <img id="{{this.get_name()}}" alt="float_image"
+        src="https://raw.githubusercontent.com/SECOORA/static_assets/master/maps/img/rose.png"
+        style="z-index: 999999">
+        </img>
+    """)
+    assert ''.join(tmpl.render(this=szt).split()) in ''.join(out.split())
+
+    # Verify that the style has been created.
+    tmpl = Template("""
+        <style>
+            #{{this.get_name()}} {
+                position:absolute;
+                bottom:60%;
+                left:70%;
+                }
+        </style>
+    """)
+    assert ''.join(tmpl.render(this=szt).split()) in ''.join(out.split())
+
+    bounds = m.get_bounds()
+    assert bounds == [[None, None], [None, None]], bounds