From db328d2a861f5aedec900e44fbe1fd542b307afb Mon Sep 17 00:00:00 2001
From: Jean-Philippe Bruyère <jp_bruyere@hotmail.com>
Date: Sun, 22 Jun 2025 12:06:15 +0200
Subject: unified samples app in c++, unit testing wip

---
 samples/tests/lines.cpp | 103 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 103 insertions(+)
 create mode 100644 samples/tests/lines.cpp

(limited to 'samples/tests/lines.cpp')

diff --git a/samples/tests/lines.cpp b/samples/tests/lines.cpp
new file mode 100644
index 0000000..624b290
--- /dev/null
+++ b/samples/tests/lines.cpp
@@ -0,0 +1,103 @@
+#include "VkvgTest.hpp"
+
+TEST(lines_horizontal) {
+    float w = (float)test->app->width;
+    float h = (float)test->app->height;
+
+    VkvgContext ctx = vkvg_create(test->surf);
+    vkvg_clear(ctx);
+
+    for (uint32_t i = 0; i < test->app->testSize; i++) {
+        randomize_color(ctx);
+        float x1 = w * rndf();
+        float y1 = h * rndf();
+        float v  = 500.f * rndf();
+
+        vkvg_move_to(ctx, x1, y1);
+        vkvg_line_to(ctx, x1 + v, y1);
+        vkvg_stroke(ctx);
+    }
+    vkvg_destroy(ctx);
+}
+TEST(lines_vertical) {
+    float w = (float)test->app->width;
+    float h = (float)test->app->height;
+
+    VkvgContext ctx = vkvg_create(test->surf);
+    vkvg_clear(ctx);
+
+    for (uint32_t i = 0; i < test->app->testSize; i++) {
+        randomize_color(ctx);
+        float x1 = w * rndf();
+        float y1 = h * rndf();
+        float v  = 500.f * rndf();
+
+        vkvg_move_to(ctx, x1, y1);
+        vkvg_line_to(ctx, x1, y1 + v);
+        vkvg_stroke(ctx);
+    }
+    vkvg_destroy(ctx);
+}
+TEST(lines_horzAndVert) {
+    float w = (float)test->app->width;
+    float h = (float)test->app->height;
+
+    VkvgContext ctx = vkvg_create(test->surf);
+    vkvg_clear(ctx);
+
+    for (uint32_t i = 0; i < test->app->testSize; i++) {
+        randomize_color(ctx);
+
+        float x1 = w * rndf();
+        float y1 = h * rndf();
+        float x2 = (w * rndf()) + 1;
+        float y2 = (h * rndf()) + 1;
+
+        vkvg_move_to(ctx, x1, y1);
+        vkvg_line_to(ctx, x2, y2);
+        vkvg_stroke(ctx);
+    }
+    vkvg_destroy(ctx);
+}
+TEST(lines_multilines) {
+    float w = (float)test->app->width;
+    float h = (float)test->app->height;
+
+    VkvgContext ctx = vkvg_create(test->surf);
+    vkvg_clear(ctx);
+
+    randomize_color(ctx);
+
+    for (uint32_t i = 0; i < test->app->testSize; i++) {
+
+        float x1 = w * rndf();
+        float y1 = h * rndf();
+        float x2 = (w * rndf()) + 1;
+        float y2 = (h * rndf()) + 1;
+
+        vkvg_move_to(ctx, x1, y1);
+        vkvg_line_to(ctx, x2, y2);
+    }
+    vkvg_stroke(ctx);
+    vkvg_destroy(ctx);
+}
+TEST(lines_multi_segments) {
+    float w = (float)test->app->width;
+    float h = (float)test->app->height;
+
+    VkvgContext ctx = vkvg_create(test->surf);
+    vkvg_clear(ctx);
+
+    randomize_color(ctx);
+    float x1 = w * rndf();
+    float y1 = h * rndf();
+    vkvg_move_to(ctx, x1, y1);
+
+    for (uint32_t i = 0; i < test->app->testSize; i++) {
+        x1 = w * rndf();
+        y1 = h * rndf();
+        vkvg_line_to(ctx, x1, y1);
+    }
+    vkvg_stroke(ctx);
+    vkvg_destroy(ctx);
+}
-- 
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