76 lines
2.0 KiB
Lua
76 lines
2.0 KiB
Lua
function get_directory_iterator_from_table(table)
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return function(directory)
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local index = 0
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local filenames = table
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return function()
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index = index + 1
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return filenames[index]
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end
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end
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end
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describe("ls", function()
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local lfs = require "lfs"
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local prevfile = require "prevfile"
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insulate("if directory does not exist", function()
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lfs.dir = function(directory) error("No such file or directory") end
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it("should return nil", function()
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local files = prevfile.ls("/testdir")
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assert.equals(nil, files)
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end)
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end)
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insulate("if directory is empty", function()
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lfs.dir = get_directory_iterator_from_table({})
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it("should return empty table", function()
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local files = prevfile.ls("/testdir")
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assert.are.same({}, files)
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end)
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it("should call lfs.dir with target directory", function()
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spy.on(lfs, "dir")
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local test_directory = "/testdir"
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prevfile.ls(test_directory)
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assert.stub(lfs.dir).was_called_with(test_directory)
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end)
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end)
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insulate("if directory contains files", function()
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lfs.dir = get_directory_iterator_from_table({"a.txt", "b.txt", "z.txt", "c.txt"})
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it("should return the files in lexographical order", function()
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local files = prevfile.ls("/testdir")
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assert.are.same({"a.txt", "b.txt", "c.txt", "z.txt"}, files)
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end)
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end)
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insulate("if directory contains numerically-named files", function()
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lfs.dir = get_directory_iterator_from_table({"/testdir/709.txt", "/testdir/71.txt", "/testdir/710.txt"})
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it("should return the files in numerical order", function()
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local files = prevfile.ls("/testdir")
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assert.are.same({"/testdir/71.txt", "/testdir/709.txt", "/testdir/710.txt"}, files)
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end)
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end)
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insulate("if directory contains hidden files", function()
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lfs.dir = get_directory_iterator_from_table({"a.txt", ".b.txt.swp", "c.txt"})
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it("should exclude them from the listing", function()
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local files = prevfile.ls("/testdir")
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assert.are.same({"a.txt", "c.txt"}, files)
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end)
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end)
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end)
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