From b770833521bb6b142bfd183ee8b0973e90cbe175 Mon Sep 17 00:00:00 2001
From: Justin Lin <caterpillar@openhome.cc>
Date: Fri, 26 May 2017 14:24:06 +0800
Subject: [PATCH] added test_polyline2d

---
 test/test_all.scad        |   1 +
 test/test_polyline2d.scad | 120 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 121 insertions(+)
 create mode 100644 test/test_polyline2d.scad

diff --git a/test/test_all.scad b/test/test_all.scad
index 2095ec31..2138d9ce 100644
--- a/test/test_all.scad
+++ b/test/test_all.scad
@@ -1,6 +1,7 @@
 // 2D
 include <test_rounded_square.scad>;
 include <test_line2d.scad>;
+include <test_polyline2d.scad>;
 
 // 2D Shape
 include <test_shape_arc.scad>;
diff --git a/test/test_polyline2d.scad b/test/test_polyline2d.scad
new file mode 100644
index 00000000..fc0bc635
--- /dev/null
+++ b/test/test_polyline2d.scad
@@ -0,0 +1,120 @@
+include <unittest.scad>;
+include <line2d.scad>;
+
+module test_polyline2d() { 
+
+    $fn = 24;
+    points = [[1, 2], [-5, -4], [-5, 3], [5, 5]];
+    line_width = 1;
+    leng_points = len(points);
+            
+    module assertCorrectSegment(index, point1, point2, width) {
+        assertEqualPoint(points[index - 1], point1);
+        assertEqualPoint(points[index], point2);
+        assertEqual(line_width, width);    
+    }
+    
+    module assertCorrectCaps(startStyle, endStyle, index, p1Style, p2Style) {
+        function correctMiddleCaps(p1Style, p2Style) = 
+                p1Style == "CAP_BUTT" && p2Style == "CAP_ROUND";    
+    
+        if(index == 1 && (p1Style != startStyle || p2Style != "CAP_ROUND")) {
+            fail(
+                "Wrong start caps", 
+                str(
+                    "expected: [", startStyle, ", \"CAP_ROUND\"]", 
+                    ", but: ", [p1Style, p2Style]
+                )
+            );
+        }
+        
+        if((1 < index && index < leng_points - 1) && !correctMiddleCaps(p1Style, p2Style)) {
+            
+            fail(
+                "Wrong middle caps", 
+                str(
+                    "expected: [\"CAP_BUTT\", \"CAP_ROUND\"]", 
+                    ", but: ", [p1Style, p2Style]
+                )
+            );
+        }
+        
+        if(index == leng_points - 1 && (p1Style != "CAP_BUTT" || p2Style != endStyle)) {
+            fail(
+                "Wrong end caps",
+                str(
+                    "expected: [\"CAP_BUTT\, ", endStyle, "]", 
+                    ", but: ", [p1Style, p2Style]
+                )                    
+            );
+        }       
+    }
+            
+    // testcases
+    
+    module test_polyline2d_cap_square() {
+        echo("==== test_polyline2d_cap_square ====");
+    
+        include <polyline2d.scad>;
+        
+        module test_line_segment(index, point1, point2, width, p1Style, p2Style) {
+        
+            assertCorrectSegment(index, point1, point2, width);
+            assertCorrectCaps(
+                "CAP_SQUARE", "CAP_SQUARE", 
+                index, p1Style, p2Style
+            );
+        } 
+        
+        polyline2d(points = points, width = line_width);
+    }
+    
+    module test_polyline2d_cap_end_round() {
+        echo("==== test_polyline2d_cap_end_round ====");
+    
+        include <polyline2d.scad>;
+        
+        module test_line_segment(index, point1, point2, width, p1Style, p2Style) {
+        
+            assertCorrectSegment(index, point1, point2, width);
+            assertCorrectCaps(
+                "CAP_SQUARE", "CAP_ROUND", 
+                index, p1Style, p2Style
+            );
+        } 
+        
+        polyline2d(
+            points = points, 
+            width = line_width, 
+            endingStyle = "CAP_ROUND"
+        );
+    }    
+    
+    module test_polyline2d_cap_round() {
+        echo("==== test_polyline2d_cap_round ====");
+    
+        include <polyline2d.scad>;
+        
+        module test_line_segment(index, point1, point2, width, p1Style, p2Style) {
+        
+            assertCorrectSegment(index, point1, point2, width);
+            assertCorrectCaps(
+                "CAP_ROUND", "CAP_ROUND", 
+                index, p1Style, p2Style
+            );
+        }  
+        
+        polyline2d(
+            points = points, 
+            width = line_width, 
+            startingStyle = "CAP_ROUND", 
+            endingStyle = "CAP_ROUND"
+        );
+    }    
+    
+    test_polyline2d_cap_square();
+    test_polyline2d_cap_end_round();
+    test_polyline2d_cap_round();
+}
+
+test_polyline2d();
\ No newline at end of file