test: reorg #15698

Problem:
Subdirectories like "visual", "insert", "normal" encourage people to
separate *related* tests for no good reason.  Typically the _mode_ is
not the relevant topic of a test (and when it is, _then_ create
an appropriate describe() or it()).

Solution:
- Delete the various `test/functional/<mode>/` subdirectories, move
  their tests to more meaningful topics.
- Rename `…/normal/` to `…/editor/`.
  - Move or merge `…/visual/*` and `…/insert/*` tests into here where
    appropriate.
- Rename `…/eval/` to `…/vimscript/`.
  - Move `…/viml/*` into here also.

* test(reorg): insert/* => editor/mode_insert_spec.lua
* test(reorg): cmdline/* => editor/mode_cmdline_spec.lua
* test(reorg): eval core tests => eval_spec.lua

1 files changed, 66 insertions, 0 deletions

diff --git a/test/functional/vimscript/has_spec.lua b/test/functional/vimscript/has_spec.lua
new file mode 100644
index 0000000000..a3af2d1a20
--- /dev/null
+++ b/test/functional/vimscript/has_spec.lua
@@ -0,0 +1,66 @@
+local helpers = require('test.functional.helpers')(after_each)
+local eq = helpers.eq
+local clear = helpers.clear
+local funcs = helpers.funcs
+local iswin = helpers.iswin
+
+describe('has()', function()
+  before_each(clear)
+
+  it('"nvim-x.y.z"', function()
+    eq(0, funcs.has("nvim-"))
+    eq(0, funcs.has("nvim-  "))
+    eq(0, funcs.has("nvim- \t "))
+    eq(0, funcs.has("nvim-0. 1. 1"))
+    eq(0, funcs.has("nvim-0. 1.1"))
+    eq(0, funcs.has("nvim-0.1. 1"))
+    eq(0, funcs.has("nvim-a"))
+    eq(0, funcs.has("nvim-a.b.c"))
+    eq(0, funcs.has("nvim-0.b.c"))
+    eq(0, funcs.has("nvim-0.0.c"))
+    eq(0, funcs.has("nvim-0.b.0"))
+    eq(0, funcs.has("nvim-a.b.0"))
+    eq(0, funcs.has("nvim-.0.0.0"))
+    eq(0, funcs.has("nvim-.0"))
+    eq(0, funcs.has("nvim-0."))
+    eq(0, funcs.has("nvim-0.."))
+    eq(0, funcs.has("nvim-."))
+    eq(0, funcs.has("nvim-.."))
+    eq(0, funcs.has("nvim-..."))
+    eq(0, funcs.has("nvim-42"))
+    eq(0, funcs.has("nvim-9999"))
+    eq(0, funcs.has("nvim-99.001.05"))
+
+    eq(1, funcs.has("nvim"))
+    eq(1, funcs.has("nvim-0"))
+    eq(1, funcs.has("nvim-0.1"))
+    eq(1, funcs.has("nvim-0.0.0"))
+    eq(1, funcs.has("nvim-0.1.1."))
+    eq(1, funcs.has("nvim-0.1.1.abc"))
+    eq(1, funcs.has("nvim-0.1.1.."))
+    eq(1, funcs.has("nvim-0.1.1.. .."))
+    eq(1, funcs.has("nvim-0.1.1.... "))
+    eq(1, funcs.has("nvim-0.0.0"))
+    eq(1, funcs.has("nvim-0.0.1"))
+    eq(1, funcs.has("nvim-0.1.0"))
+    eq(1, funcs.has("nvim-0.1.1"))
+    eq(1, funcs.has("nvim-0.1.5"))
+    eq(1, funcs.has("nvim-0000.001.05"))
+    eq(1, funcs.has("nvim-0.01.005"))
+    eq(1, funcs.has("nvim-00.001.05"))
+  end)
+
+  it('"unnamedplus"', function()
+    if (not iswin()) and funcs.has("clipboard") == 1 then
+      eq(1, funcs.has("unnamedplus"))
+    else
+      eq(0, funcs.has("unnamedplus"))
+    end
+  end)
+
+  it('"wsl"', function()
+    if 1 == funcs.has('win32') or 1 == funcs.has('mac') then
+      eq(0, funcs.has('wsl'))
+    end
+  end)
+end)