1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
#include <format>
#include <string_view>
#include <catch2/catch_all.hpp>
#include "svg_analyzer.h"
#include "test_utilities.h"
TEST_CASE("Edge color",
"Test that the Graphviz `color` attribute is used to set the "
"`stroke` and `stroke-opacity` attributes correctly for edges in the "
"generated SVG") {
const auto primitive_arrow_shape =
GENERATE(from_range(all_primitive_arrow_shapes));
INFO("Primitive arrow shape: " << primitive_arrow_shape);
const auto edge_rgb_fillcolor = GENERATE("#000000", "#ffffff", "#5580aa");
const auto opacity = GENERATE(0, 100, 255);
const auto edge_rgba_fillcolor =
std::format("{}{:02x}", edge_rgb_fillcolor, opacity);
INFO("Edge fillcolor: " << edge_rgba_fillcolor);
auto dot =
std::format("digraph g1 {{edge [arrowhead={} fillcolor=\"{}\"]; a -> b}}",
primitive_arrow_shape, edge_rgba_fillcolor);
const auto engine = "dot";
auto svg_analyzer = SVGAnalyzer::make_from_dot(dot, engine);
const auto expected_edge_fillcolor = [&]() -> const std::string {
if (primitive_arrow_shapes_without_closed_svg_shape.contains(
primitive_arrow_shape)) {
return "";
}
if (opacity == 255) {
return edge_rgb_fillcolor;
}
if (opacity == 0) {
return "#00000000"; // transparent/none
}
return edge_rgba_fillcolor;
}();
for (const auto &graph : svg_analyzer.graphs()) {
for (const auto &edge : graph.edges()) {
CHECK(edge.fillcolor() == expected_edge_fillcolor);
}
}
}
|
