test: ini parser spec

spec/fixtures/ini/all.ini

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+[section1]
+one = 1
+nothing =
+
+[section2]
+right=true
+
+[section3]
+nope=

spec/fixtures/ini/booleans.ini

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+[section]
+good = true
+bad = false

spec/fixtures/ini/comments.ini

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+; There is only a single comment in this file
+;
+; [section]
+; key=value

spec/fixtures/ini/numbers.ini

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+[section]
+one = 1
+two = 2

spec/unit/parser_spec.lua

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+local ini = require "telescope._extensions.bookmarks.parser.ini"
+
+describe("ini parser", function()
+  it("should ignore comments", function()
+    assert.are.same(ini.load "spec/fixtures/ini/comments.ini", {})
+  end)
+
+  it("should parse numbers", function()
+    assert.are.same(ini.load "spec/fixtures/ini/numbers.ini", {
+      section = {
+        one = 1,
+        two = 2,
+      },
+    })
+  end)
+
+  it("should parse booleans", function()
+    assert.are.same(ini.load "spec/fixtures/ini/booleans.ini", {
+      section = {
+        good = true,
+        bad = false,
+      },
+    })
+  end)
+
+  it("should parse multiple sections and empty values", function()
+    assert.are.same(ini.load "spec/fixtures/ini/all.ini", {
+      section1 = {
+        one = 1,
+        nothing = "",
+      },
+      section2 = {
+        right = true,
+      },
+      section3 = {
+        nope = "",
+      },
+    })
+  end)
+end)