Adde test for wrong drill map type

tests/test_plot/test_yaml_errors.py

@@ -4,6 +4,7 @@ Tests various errors in the config file
 - No kiplot.version
 - Wrong kiplot.version
 - Missing drill map type
+- Wrong drill map type
 
 For debug information use:
 pytest-3 --log-cli-level debug
@@ -39,3 +40,10 @@ def test_drill_map_no_type():
     ctx.run(EXIT_BAD_CONFIG)
     assert ctx.search_err("Missing `type' in drill map section")
     ctx.clean_up()
+
+
+def test_drill_map_wrong_type():
+    ctx = context.TestContext('ErrorDrillMapWrongType', '3Rs', 'error_drill_map_wrong_type', None)
+    ctx.run(EXIT_BAD_CONFIG)
+    assert ctx.search_err("Unknown drill map type: bogus")
+    ctx.clean_up()

tests/yaml_samples/error_drill_map_wrong_type.kiplot.yaml

@@ -0,0 +1,28 @@
+# Drills and Gerber drills
+kiplot:
+  version: 1
+
+outputs:
+
+  - name: excellon_drill
+    comment: "Excellon drill files"
+    type: excellon
+    dir: Drill
+    options:
+      metric_units: true
+      pth_and_npth_single_file: false
+      use_aux_axis_as_origin: false
+      minimal_header: false
+      mirror_y_axis: false
+      report:
+        filename: 'report.rpt'
+      map:
+        type: 'bogus'
+
+  - name: gerber_drills
+    comment: "Gerber drill files"
+    type: gerb_drill
+    dir: Drill
+    options:
+      use_aux_axis_as_origin: false
+