test: add test for ivy.prompt

lua/ivy/prompt_test.lua

@@ -0,0 +1,67 @@
+local prompt = require "ivy.prompt"
+
+before_each(function()
+  -- Mock the global vim functions we are using in the prompt
+  _G.vim = {
+    notify = function() end,
+    api = {
+      nvim_echo = function() end,
+    },
+  }
+
+  prompt.destroy()
+end)
+
+-- Input a list of strings into the prompt
+local input = function(input_table)
+  for index = 1, #input_table do
+    prompt.input(input_table[index])
+  end
+end
+
+-- Asserts the prompt contains the correct value
+local assert_prompt = function(t, expected)
+  local text = prompt.text()
+  if text ~= expected then
+    t.error("The promp text should be '" .. expected .. "' found '" .. text .. "'")
+  end
+end
+
+it("starts with empty text", function(t)
+  if prompt.text() ~= "" then
+    t.error "The prompt should start with empty text"
+  end
+end)
+
+it("can input some text", function(t)
+  input { "A", "d", "e" }
+  assert_prompt(t, "Ade")
+end)
+
+it("can delete a char", function(t)
+  input { "A", "d", "e", "BACKSPACE" }
+  assert_prompt(t, "Ad")
+end)
+
+it("will reset the text", function(t)
+  input { "A", "d", "e" }
+  prompt.set "New"
+  assert_prompt(t, "New")
+end)
+
+it("can move around the a word", function(t)
+  input { "P", "r", "o", "p", "t", "LEFT", "LEFT", "LEFT", "RIGHT", "m" }
+  assert_prompt(t, "Prompt")
+end)
+
+it("can delete a word", function(t)
+  prompt.set "Ade Attwood"
+  input { "DELETE_WORD" }
+  assert_prompt(t, "Ade")
+end)
+
+it("can delete a word in the middle", function(t)
+  prompt.set "Ade middle A"
+  input { "LEFT", "LEFT", "DELETE_WORD" }
+  assert_prompt(t, "Ade A")
+end)