Added pdfunite test with source and external tool

tests/test_plot/test_misc.py

@@ -1020,12 +1020,21 @@ def test_annotate_power_1(test_dir):
 
 
 def test_pdfunite_1(test_dir):
-    prj = 'light_control'
+    prj = 'bom'
     ctx = context.TestContext(test_dir, prj, 'pdfunite_1', POS_DIR)
     ctx.run()
     o = prj+'-PDF_Joined.pdf'
     ctx.expect_out_file(o)
-    ctx.clean_up(keep_project=True)
+    ctx.clean_up()
+
+
+def test_pdfunite_2(test_dir):
+    prj = 'bom'
+    ctx = context.TestContext(test_dir, prj, 'pdfunite_2', POS_DIR)
+    ctx.run()
+    o = prj+'-PDF_Joined.pdf'
+    ctx.expect_out_file(o)
+    ctx.clean_up()
 
 
 def check_refs(ctx, refs):

tests/yaml_samples/pdfunite_2.kibot.yaml

@@ -0,0 +1,52 @@
+kiplot:
+  version: 1
+
+outputs:
+  - name: PDF_top
+    comment: "PDF files for top layer"
+    type: pdf
+    dir: PDF
+    options:
+      exclude_edge_layer: false
+      exclude_pads_from_silkscreen: false
+      plot_sheet_reference: false
+      plot_footprint_refs: true
+      plot_footprint_values: true
+      force_plot_invisible_refs_vals: false
+      tent_vias: true
+
+      # PDF options
+      drill_marks: small
+      mirror_plot: false
+      negative_plot: false
+      line_width: 0.01
+    layers:
+      - layer: F.Cu
+        suffix: F_Cu
+      - layer: F.SilkS
+        suffix: F_Silks
+
+  - name: PDF_bottom
+    comment: "PDF files for bottom layer"
+    type: pdf
+    dir: PDF
+    options:
+      exclude_edge_layer: false
+      # PDF options
+      drill_marks: full
+      mirror_plot: true
+      negative_plot: true
+      line_width: 0.01
+    layers:
+      - layer: B.Cu
+        suffix: B_Cu
+      - layer: B.SilkS
+        suffix: B_Silks
+
+  - name: PDF_Joined
+    comment: "PDF files for top layer + mirrored bottom layer"
+    type: pdfunite
+    options:
+      use_external_command: true
+      outputs:
+        - source: PDF/*.pdf