Usage

• with-test-buffer creates a buffer object for testing
• with-vi-buffer to set the initial vi state and bind the given buffer (or string) to be the current buffer
  • Following functions are good to work with it:
    • cmd: Executes vi commands by key types in a string
      • ex) h, G, <Esc>, 3h, 5j^D, <C-x>o, <H-Shift-x>, <M-Space>.
    • buf=: Check if the current buffer text equals the given buffer's text, and the cursor position is right
    • text=: Check if the current buffer text equals the given buffer's text
    • pos=: Check if the current point is at the same position as the given point
    • state=: Check if the vi state is the given one.

Examples

Test definitions

[x] means a cursor that is on the character x. < and > means a region of vi's visual mode.

(deftest vi-forward-char
  (with-fake-interface ()
    (with-vi-buffer (#?"[a]bcdef\n")
      ;; `l`: vi-forward-char
      (cmd "l")
      (ok (buf= #?"a[b]cdef\n"))
      ;; `l` accepts a universal argument
      (cmd "3l")
      (ok (buf= #?"abcd[e]f\n"))
      ;; `l` doesn't exceed the end of the line
      (cmd "10l")
      (ok (buf= #?"abcde[f]\n"))
      (cmd "hv^")
      (ok (buf= #?"<[a]bcde>f\n"))
      (cmd "vlV")
      (ok (buf= #?"<a[b]cdef\n>")))))))

Test outputs

Testing System lem-vi-mode/tests

;; testing 'lem-vi-mode/tests/motion'
vi-forward-char
  [buf] "[a]bcdef\n"
    [cmd] l
    ✓ Expect the buffer to be "a[b]cdef\n" (actual: "a[b]cdef\n")
    [cmd] 3l
    ✓ Expect the buffer to be "abcd[e]f\n" (actual: "abcd[e]f\n")
    [cmd] 10l
    ✓ Expect the buffer to be "abcde[f]\n" (actual: "abcde[f]\n")
    [cmd] hv^
    ✓ Expect the buffer to be "<[a]bcde>f\n" (actual: "<[a]bcde>f\n")
    [cmd] vlV
    ✓ Expect the buffer to be "<a[b]cdef\n>" (actual: "<a[b]cdef\n>")

✓ 1 test completed

Summary:
  All 1 test passed.