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-rw-r--r--spec/lua/dmenu_spec.lua128
-rw-r--r--spec/lua/utils_spec.lua60
2 files changed, 158 insertions, 30 deletions
diff --git a/spec/lua/dmenu_spec.lua b/spec/lua/dmenu_spec.lua
new file mode 100644
index 0000000..3f405e6
--- /dev/null
+++ b/spec/lua/dmenu_spec.lua
@@ -0,0 +1,128 @@
+local Dmenu = require 'null-browser.extras.dmenu'
+local t = require 'null-browser.test-utils'
+
+describe('class: extras.dmenu', function()
+ t.before_each(function()
+ stub(web.uv, 'spawn')
+ stub(web.uv, 'new_pipe', 0)
+ stub(web.uv, 'close')
+ stub(web.uv, 'read_start')
+ stub(web.uv, 'shutdown')
+ stub(web.uv, 'write')
+ end)
+
+ describe('#select', function()
+ context('with default options', function()
+ it('spawns the dmenu process', function()
+ local dmenu = Dmenu:new {}
+ local spawn_proccess_stub = stub(web.uv, 'spawn')
+
+ dmenu:select({}, {}, function() end)
+
+ assert.stub(spawn_proccess_stub).was.called_with(
+ 'dmenu',
+ match.shape({ args = {}, stdio = match.table() }),
+ match.is_function()
+ )
+ end)
+ end)
+
+ context('with custom command options', function()
+ it('spawns the custom dmenu process', function()
+ local dmenu = Dmenu:new { command = 'some-other-dmenu', args = { 'my-arg' } }
+ local spawn_proccess_stub = stub(web.uv, 'spawn')
+
+ dmenu:select({}, {}, function() end)
+
+ assert.stub(spawn_proccess_stub).was.called_with(
+ 'some-other-dmenu',
+ match.shape({ args = { 'my-arg' }, stdio = match.table() }),
+ match.is_function()
+ )
+ end)
+ end)
+
+ context('when a list is provided', function()
+ it('writes the list to stdin of process', function()
+ local dmenu = Dmenu:new {}
+ local write_data_spy = stub(web.uv, 'write')
+
+ dmenu:select({ 'hello', 'world', 'testing' }, {}, function() end)
+
+ assert.stub(write_data_spy).was.called_with(0, 'hello\n')
+ assert.stub(write_data_spy).was.called_with(0, 'world\n')
+ assert.stub(write_data_spy).was.called_with(0, 'testing\n')
+ end)
+ end)
+
+ context('when process exits with status code 0', function()
+ context('when process outputs to stdout', function()
+ it('calls result callback with output line and no error', function()
+ local dmenu = Dmenu:new {}
+ local invoke_process_exit = nil
+ local on_result = spy.new()
+ stub(web.uv, 'spawn').invokes(function(_, _, callback)
+ invoke_process_exit = callback
+ end)
+ stub(web.uv, 'read_start').invokes(function(_, callback)
+ callback(nil, 'user input')
+ if invoke_process_exit then invoke_process_exit(0) end
+ end)
+
+ dmenu:select({}, {}, on_result)
+
+ assert.stub(on_result).was.called_with(nil, 'user input')
+ end)
+ end)
+
+ context('when process does not output to stdout', function()
+ it('calls result callback with nil and no error', function()
+ local dmenu = Dmenu:new {}
+ local on_result = spy.new()
+ stub(web.uv, 'spawn').invokes(function(_, _, callback)
+ callback(0)
+ end)
+
+ dmenu:select({}, {}, on_result)
+
+ assert.stub(on_result).was.called_with(nil, nil)
+ end)
+ end)
+ end)
+
+ context('when process exits with non-zero status code', function()
+ context('when process outputs to stdout', function()
+ it('calls result callback with an error and output line', function()
+ local dmenu = Dmenu:new {}
+ local invoke_process_exit = nil
+ local on_result = spy.new()
+ stub(web.uv, 'spawn').invokes(function(_, _, callback)
+ invoke_process_exit = callback
+ end)
+ stub(web.uv, 'read_start').invokes(function(_, callback)
+ callback(nil, 'user input')
+ if invoke_process_exit then invoke_process_exit(42) end
+ end)
+
+ dmenu:select({}, {}, on_result)
+
+ assert.stub(on_result).was.called_with(match.string(), 'user input')
+ end)
+ end)
+
+ context('when process does not output to stdout', function()
+ it('calls result callback with an error and nil', function()
+ local dmenu = Dmenu:new {}
+ local on_result = spy.new()
+ stub(web.uv, 'spawn').invokes(function(_, _, callback)
+ callback(42)
+ end)
+
+ dmenu:select({}, {}, on_result)
+
+ assert.stub(on_result).was.called_with(match.string(), nil)
+ end)
+ end)
+ end)
+ end)
+end)
diff --git a/spec/lua/utils_spec.lua b/spec/lua/utils_spec.lua
index 5ea2d78..de90ef5 100644
--- a/spec/lua/utils_spec.lua
+++ b/spec/lua/utils_spec.lua
@@ -1,36 +1,36 @@
describe('web.utils.string_trim', function()
it('trims whitespace from the start and end of string', function()
- expect(web.utils.string_trim(' hello')).to_equal 'hello'
- expect(web.utils.string_trim('hello ')).to_equal 'hello'
- expect(web.utils.string_trim(' hello ')).to_equal 'hello'
+ assert.are.equal(web.utils.string_trim(' hello'), 'hello')
+ assert.are.equal(web.utils.string_trim('hello '), 'hello')
+ assert.are.equal(web.utils.string_trim(' hello '), 'hello')
end)
end)
describe('web.utils.table_merge', function()
context('when both tables have integer keys', function()
it('returns merged table', function()
- expect(web.utils.table_merge({ a = 0 }, { b = 1 }, { c = 2 }))
- .to_equal { a = 0, b = 1, c = 2 }
+ local result = web.utils.table_merge({ a = 0 }, { b = 1 }, { c = 2 })
+ assert.are.same(result, { a = 0, b = 1, c = 2 })
end)
end)
context('when both tables unique keys', function()
it('returns merged table', function()
- expect(web.utils.table_merge({ a = 0 }, { b = 1 }, { c = 2 }))
- .to_equal { a = 0, b = 1, c = 2 }
+ local result = web.utils.table_merge({ a = 0 }, { b = 1 }, { c = 2 })
+ assert.are.same(result, { a = 0, b = 1, c = 2 })
end)
end)
context('when both tables have a key in common', function()
it('returns merged table', function()
- expect(web.utils.table_merge({ foo = 1, a = 0 }, { foo = 2 }, { foo = 3 }))
- .to_equal { foo = 3, a = 0 }
+ local result = web.utils.table_merge({ foo = 1, a = 0 }, { foo = 2 }, { foo = 3 })
+ assert.are.same(result, { foo = 3, a = 0 })
end)
it('mutates the first table', function()
local tbl = { foo = 1, a = 0 }
web.utils.table_merge(tbl, { foo = 2 })
- expect(tbl).to_equal { foo = 2, a = 0 }
+ assert.are.same(tbl, { foo = 2, a = 0 })
end)
end)
end)
@@ -38,29 +38,29 @@ end)
describe('web.utils.equals', function()
context('when values are primitives', function()
it('checks for equality', function()
- expect(web.utils.equals(1, 1)).to_be_true()
- expect(web.utils.equals(3, 1)).to_be_false()
- expect(web.utils.equals(nil, 1)).to_be_false()
- expect(web.utils.equals(1, nil)).to_be_false()
- expect(web.utils.equals(nil, nil)).to_be_true()
+ assert.is_true(web.utils.equals(1, 1))
+ assert.is_false(web.utils.equals(3, 1))
+ assert.is_false(web.utils.equals(nil, 1))
+ assert.is_false(web.utils.equals(1, nil))
+ assert.is_true(web.utils.equals(nil, nil))
end)
end)
context('when values are tables', function()
it('checks for equality', function()
- expect(web.utils.equals({}, 0)).to_be_false()
- expect(web.utils.equals(0, {})).to_be_false()
- expect(web.utils.equals({}, {})).to_be_true()
- expect(web.utils.equals({ a = 1 }, { a = 1 })).to_be_true()
- expect(web.utils.equals({ a = 2 }, { a = 1 })).to_be_false()
- expect(web.utils.equals({}, { a = 1 })).to_be_false()
- expect(web.utils.equals({ a = 1 }, {})).to_be_false()
+ assert.is_false(web.utils.equals({}, 0))
+ assert.is_false(web.utils.equals(0, {}))
+ assert.is_true(web.utils.equals({}, {}))
+ assert.is_true(web.utils.equals({ a = 1 }, { a = 1 }))
+ assert.is_false(web.utils.equals({ a = 2 }, { a = 1 }))
+ assert.is_false(web.utils.equals({}, { a = 1 }))
+ assert.is_false(web.utils.equals({ a = 1 }, {}))
end)
context('when tables are deeply nested', function()
it('checks for equality', function()
- expect(web.utils.equals({ a = { b = 2 } }, { a = { b = 2 } })).to_be_true()
- expect(web.utils.equals({ a = { b = 3 } }, { a = { b = 2 } })).to_be_false()
+ assert.is_true(web.utils.equals({ a = { b = 2 } }, { a = { b = 2 } }))
+ assert.is_false(web.utils.equals({ a = { b = 3 } }, { a = { b = 2 } }))
end)
end)
end)
@@ -70,21 +70,21 @@ describe('web.utils.table_keys', function()
it('returns keys of given table', function()
local result = web.utils.table_keys({ a = 1, b = 2 })
table.sort(result) -- Sort for deterministic ordering
- expect(result).to_equal({ 'a', 'b' })
+ assert.are.same(result, { 'a', 'b' })
end)
context('with index keys', function()
it('returns indexes of given table', function()
- expect(web.utils.table_keys({ 'hello', 'world' })).to_equal({ 1, 2 })
- expect(web.utils.table_keys({ 'hello', a = 1, 'world' })).to_equal({ 1, 2, 'a' })
+ assert.are.same(web.utils.table_keys({ 'hello', 'world' }), { 1, 2 })
+ assert.are.same(web.utils.table_keys({ 'hello', a = 1, 'world' }), { 1, 2, 'a' })
end)
end)
end)
describe('web.inspect', function()
it('returns string representation of value', function()
- expect(web.inspect('hello')).to_equal '"hello"'
- expect(web.inspect(5)).to_equal '5'
- expect(web.inspect({ a = '200', b = 5 })).to_equal '{\n a = "200",\n b = 5\n}'
+ assert.are.equal(web.inspect('hello'), '"hello"')
+ assert.are.equal(web.inspect(5), '5')
+ assert.are.equal(web.inspect({ a = '200', b = 5 }), '{\n a = "200",\n b = 5\n}')
end)
end)