[Tests] Cleaner mechanism for test_diff_file_sch_1

- Taking advantage of -E option
- So we avoid comparing the v7 file with the v6 file

tests/test_plot/test_misc.py

@@ -1484,9 +1484,9 @@ def test_diff_git_4(test_dir):
 def test_diff_file_sch_1(test_dir):
     """ Difference between the current Schematic and a reference file """
     prj = 'light_control_diff'
-    yaml = 'diff_file_sch_'+('k5' if context.ki5() else 'k6')
+    yaml = 'diff_file_sch'
     ctx = context.TestContext(test_dir, prj, yaml)
-    ctx.run()
+    ctx.run(extra=['-E', 'KiVer='+str(context.kicad_major), '-E', 'SCHExt='+context.KICAD_SCH_EXT])
     ctx.expect_out_file(prj+'-diff_sch_FILE-Current.pdf')
     ctx.compare_pdf(prj+'-diff_sch.pdf')
     ctx.clean_up(keep_project=True)

tests/yaml_samples/diff_file_sch.kibot.yaml

@@ -3,10 +3,10 @@ kibot:
 
 outputs:
   - name: 'diff_sch'
-    comment: "Schematic difference with reference file (KiCad 5)"
+    comment: "Schematic difference with reference file (KiCad @KiVer@)"
     type: diff
     options:
-      old: tests/board_samples/kicad_5/light_control.sch
+      old: tests/board_samples/kicad_@KiVer@/light_control@SCHExt@
       pcb: false
       old_type: file
       add_link_id: true

tests/yaml_samples/diff_file_sch_k6.kibot.yaml

@@ -1,14 +0,0 @@
-kibot:
-  version: 1
-
-outputs:
-  - name: 'diff_sch'
-    comment: "Schematic difference with reference file (KiCad 6)"
-    type: diff
-    options:
-      old: tests/board_samples/kicad_6/light_control.kicad_sch
-      pcb: false
-      old_type: file
-      add_link_id: true
-      copy_instead_of_link: true
-      cache_dir: .cache