9 files changed, 136 insertions, 24 deletions
diff --git a/testdata/modulecache-tests/README.txt b/testdata/modulecache-tests/README.txt
index 277cff8..ce341ca 100644
--- a/testdata/modulecache-tests/README.txt
+++ b/testdata/modulecache-tests/README.txt
@@ -72,10 +72,39 @@ o Compile (F5) - Verify that you get a circular disc
 o Edit radius.scad: Change RADIUS
 o Compile (F5) - Verify that the disc changed size
 
-Test9: Circular include
+Test10: Circular include
 ------
 
 o Open circularincludemain.scad
 o Compile (F5)
 o Verify that OpenSCAD won't hang or crash
 
+Test11: Missing include file appears
+------
+o rm missing.scad
+o Open includemissing.scad
+o Compile (F5)
+o Verify that you get: WARNING: Can't open 'use' file 'missing.scad'.
+o echo "module missing() { sphere(10); }" >  missing.scad
+o rm missing.scad
+o Reload and Compile (F4) - verify that the sphere is gone
+
+Test12: Missing include file in subpath appears
+------
+o rm subdir/missingsub.scad
+o Open includemissingsub.scad
+o Compile (F5)
+o Verify that you get: WARNING: Can't open include file 'subdir/missingsub.scad'.
+o echo "module missingsub() { sphere(10); }" >  subdir/missingsub.scad
+o rm subdir/missingsub.scad
+o Reload and Compile (F4) - verify that the sphere is gone
+
+Test13: Missing library file appears
+-------
+o rm missing.scad
+o Open usemissing.scad
+o Compile (F5)
+o Verify that you get: WARNING: Can't open 'use' file 'missing.scad'.
+o echo "module missing() { sphere(10); }" >  missing.scad
+o rm missing.scad
+o Compile (F5) - verify that the sphere is gone
diff --git a/testdata/modulecache-tests/includemissing.scad b/testdata/modulecache-tests/includemissing.scad
new file mode 100644
index 0000000..d8a165f
--- /dev/null
+++ b/testdata/modulecache-tests/includemissing.scad
@@ -0,0 +1,2 @@
+include <missing.scad>
+missing();
diff --git a/testdata/modulecache-tests/includemissingsub.scad b/testdata/modulecache-tests/includemissingsub.scad
new file mode 100644
index 0000000..50acffe
--- /dev/null
+++ b/testdata/modulecache-tests/includemissingsub.scad
@@ -0,0 +1,2 @@
+include <subdir/missingsub.scad>
+missingsub();
diff --git a/testdata/scad/features/background-modifier.scad b/testdata/scad/features/background-modifier.scad
index 5430472..d67270e 100644
--- a/testdata/scad/features/background-modifier.scad
+++ b/testdata/scad/features/background-modifier.scad
@@ -3,3 +3,8 @@ difference() {
   %cylinder(h=30, r=6, center=true);
 }
 %if (true) cube([25,6,3], center=true);
+
+%translate([0,-9,0]) difference() {
+  color("green") cube([10,4,10], center=true);
+  color("red") translate([0,-2,0]) sphere(3);
+}
diff --git a/testdata/scad/features/highlight-and-background-modifier.scad b/testdata/scad/features/highlight-and-background-modifier.scad
index 5dca703..d97408b 100644
--- a/testdata/scad/features/highlight-and-background-modifier.scad
+++ b/testdata/scad/features/highlight-and-background-modifier.scad
@@ -1,10 +1,31 @@
 difference() {
   sphere(r=10);
   %#cylinder(h=30, r=6, center=true);
-  %#if (true) cube([6,25,3], center=true);
+  %#if (true) cube([25,6,3], center=true);
 }
-translate([13,0,0]) difference() {
-  sphere(r=10);
-  #%cylinder(h=30, r=6, center=true);
-  #%if (true) cube([6,25,3], center=true);
+%#translate([0,-9,0]) difference() {
+  color("green") cube([10,4,10], center=true);
+  color("red") translate([0,-2,0]) sphere(3);
+}
+%translate([13,0,0]){
+  difference() {
+    sphere(r=10);
+    cylinder(h=30, r=6, center=true);
+    if (true) cube([25,6,3], center=true);
+  }
+  #translate([0,-9,0]) difference() {
+    color("green") cube([10,4,10], center=true);
+    color("red") translate([0,-2,0]) sphere(3);
+  }
+}
+#translate([26,0,0]){
+  difference() {
+    sphere(r=10);
+    cylinder(h=30, r=6, center=true);
+    if (true) cube([25,6,3], center=true);
+  }
+  %translate([0,-9,0]) difference() {
+    color("green") cube([10,4,10], center=true);
+    color("red") translate([0,-2,0]) sphere(3);
+  }
 }
diff --git a/testdata/scad/features/highlight-modifier.scad b/testdata/scad/features/highlight-modifier.scad
index f228d08..2141f58 100644
--- a/testdata/scad/features/highlight-modifier.scad
+++ b/testdata/scad/features/highlight-modifier.scad
@@ -3,3 +3,8 @@ difference() {
   #cylinder(h=30, r=6, center=true);
 }
 #if (true) cube([25,6,3], center=true);
+
+#translate([0,-9,0]) difference() {
+  color("green") cube([10,4,10], center=true);
+  color("red") translate([0,-2,0]) sphere(3);
+}
diff --git a/testdata/scad/features/linear_extrude-scale-tests.scad b/testdata/scad/features/linear_extrude-scale-tests.scad
deleted file mode 100644
index 9a82c9d..0000000
--- a/testdata/scad/features/linear_extrude-scale-tests.scad
+++ /dev/null
@@ -1,17 +0,0 @@
-difference() {
-    linear_extrude(height=40, scale=[0, 0]) {
-        square(10, center=true);
-        translate([10,0]) circle(10);
-    }
- translate([0,0,35])   sphere(10);
-}
-
-/*
-Test case ideas:
-o off-center starting point
-o Concave polygon
-o Disjoint polygons
-o multi-rotation twist
-o zero scales, zero scales in only one axis (for the above cases)
-o boolean operations on scaled extrusion (including zero scale)
-*/
diff --git a/testdata/scad/features/linear_extrude-scale-zero-tests.scad b/testdata/scad/features/linear_extrude-scale-zero-tests.scad
new file mode 100644
index 0000000..8a85203
--- /dev/null
+++ b/testdata/scad/features/linear_extrude-scale-zero-tests.scad
@@ -0,0 +1,56 @@
+// test cases for linear extrude with scale
+// by TakeItAndRun 2013
+
+// syntax: linear_extrude(height=a, slices=b, twist=c, scale=[x,y])
+
+a=3;
+b=20;
+c=0;
+x=1;
+y=1;
+
+module linear_extrudes_of_different_shapes(a=a,b=b,c=c,x=x,y=y) {
+  translate(00*[4,0,0])
+  // linear_extrude of shape with hole
+  linear_extrude(height=a, slices=b, twist=c, scale=[x,y])
+    difference() {
+      square(2,true); square(1,true);
+    }
+  
+  translate(01*[4,0,0])
+  // linear_extrude of disjoint polygons shapes
+  linear_extrude(height=a, slices=b, twist=c, scale=[x,y]) {
+    translate([1,0,0]) square(1,true);
+    translate([-1,0,0]) square(1,true);
+  }
+  
+  translate(02*[4,0,0])
+  // linear_extrude with a coplanar face
+  linear_extrude(height=a, slices=b, twist=c, scale=[x,y]) {
+    translate([.5,0,0])square();
+    translate([-.5,0,0])square();
+  }
+  
+  translate(03*[4,0,0])
+  // linear_extrude with internal hole and one coplanar edge
+  linear_extrude(height=a, slices=b, twist=c, scale=[x,y])
+  difference() {
+    square(2,true);
+    translate([-0.5,0,0]) square(1,true);
+  }
+}
+
+
+// Test varying parameters
+translate(00*[0,3,0])
+linear_extrudes_of_different_shapes(c=0,x=0,y=y);
+translate(01*[0,3,0])
+linear_extrudes_of_different_shapes(c=0,x=x,y=0);
+translate(02*[0,3,0])
+linear_extrudes_of_different_shapes(c=0,x=0,y=0);
+translate(03*[0,3,0])
+linear_extrudes_of_different_shapes(c=180,x=0,y=y);
+translate(04*[0,3,0])
+linear_extrudes_of_different_shapes(c=180,x=x,y=0);
+translate(05*[0,3,0])
+linear_extrudes_of_different_shapes(c=180,x=0,y=0);
diff --git a/testdata/scad/features/linear_extrude-tests.scad b/testdata/scad/features/linear_extrude-tests.scad
index 67d892f..528eea2 100644
--- a/testdata/scad/features/linear_extrude-tests.scad
+++ b/testdata/scad/features/linear_extrude-tests.scad
@@ -12,4 +12,13 @@ translate([31.5,2.5,0]) linear_extrude(height=10, twist=-45) polygon(points = [[
 translate([0,20,0]) linear_extrude(height=20, twist=45, slices=2) square([10,10]);
 translate([19,20,0]) linear_extrude(height=20, twist=45, slices=10) square([10,10]);
 
-translate([-15,0,0]) linear_extrude(5) square([10,10]);
+translate([0,-15,0]) linear_extrude(5) square([10,10]);
+
+// scale given as a scalar
+translate([-25,-10,0]) linear_extrude(height=10, scale=2) square(5, center=true);
+// scale given as a 3-dim vector
+translate([-15,20,0]) linear_extrude(height=20, scale=[4,5,6]) square(10);
+// scale is negative
+translate([-10,5,0]) linear_extrude(height=15, scale=-2) square(10, center=true);
+// scale given as undefined
+translate([-15,-15,0]) linear_extrude(height=10, scale=var_undef) square(10);