{-# LANGUAGE PackageImports #-}
{-# LANGUAGE QuasiQuotes #-}
module QN.Spec (spec) where
import "hspec" Test.Hspec (Spec, describe, it, shouldBe)
-- local imports
import "qm-interpolated-string" Text.InterpolatedString.QM (qn)
spec :: Spec
spec = do
describe "Examples from README" $ do
it "First (decorative spacing and escaping space symbol)" $
[qn| hello world,
\ what's going on here? |]
`shouldBe` "hello world, what's going on here?"
it "Second (merging lines without spaces)" $
[qn|
it's actual
ly ignored
|]
`shouldBe` "it's actually ignored"
it "Third (explicit line breaks symbols)" $
[qn| \ You could explicitly escape indentation or\n
line breaks when you really need it! \
|] `shouldBe` " You could explicitly escape indentation or\n\
\line breaks when you really need it! "
it "Fourth (escaping interpolation blocks to show them as text)" $
[qn| {1+2} \{3+4} |] `shouldBe` "{1+2} \\{3+4}"
it "Example of `qn` QuasiQuoter" $
[qn| foo {1+2} |] `shouldBe` "foo {1+2}"
it "Type annotation in interpolation block" $
[qn|{10 :: Float}|] `shouldBe` "{10 :: Float}"
it "Escaping interpolation symbols inside interpolation block" $ do
[qn|foo {"b{a{r"} baz|] `shouldBe` "foo {\"b{a{r\"} baz"
[qn|foo {"b\}a\}r"} baz|] `shouldBe` "foo {\"b\\}a\\}r\"} baz"
it "Example from generated docs" $
[qn| foo {'b':'a':'r':""}
\ baz |] `shouldBe` "foo {'b':'a':'r':\"\"} baz"
it "Escaping backslashes" $ do [qn| foo\bar |] `shouldBe` "foo\\bar"
[qn| foo\\bar |] `shouldBe` "foo\\bar"
[qn| foo\\\bar |] `shouldBe` "foo\\\\bar"
[qn| foo\\\\bar |] `shouldBe` "foo\\\\bar"
it "Empty string" $ [qn| |] `shouldBe` ""
it "Escaping space by slash at EOL after space" $
[qn| foo \
bar |] `shouldBe` "foo bar"
it "Escaped spaces at the edges" $ do [qn| foo\ |] `shouldBe` "foo "
[qn|\ foo |] `shouldBe` " foo"
describe "Tabs as indentation" $ do
it "Tabs is only indentation at left side" $ do
[qn|
foo bar baz
|] `shouldBe` "foo bar baz"
[qn| foo bar baz|] `shouldBe` "foo bar baz"
it "Tabs also at EOL" $ do
[qn|
foo bar baz
|] `shouldBe` "foo bar baz"
[qn| foo bar baz |] `shouldBe` "foo bar baz"
it "Escaped tabs" $ do
[qn| \tfoo|] `shouldBe` "\tfoo"
[qn| \ foo |] `shouldBe` "\tfoo"
[qn| foo \ |] `shouldBe` "foo\t\t\t"
[qn| foo \ |] `shouldBe` "foo\t\t"
[qn| foo\ |] `shouldBe` "foo\t"
it "Tails" $ do
[qn|
foo
|] `shouldBe` "foo"
[qn|
foo
|] `shouldBe` "foo"
[qn|
foo
|] `shouldBe` "foo"
describe "New README examples" $ do
it "Simple usage example" $ do
[qn|
<article>
<h1>{title}</h1>
<p>{text}</p>
</article>
|] `shouldBe` "<article><h1>{title}</h1><p>{text}</p></article>"
it "Interpolation" $ [qn| foo {1+2} |] `shouldBe` "foo {1+2}"
it "Haddock example" $
[qn| foo {'b':'a':'r':""}
\ baz |] `shouldBe` "foo {'b':'a':'r':\"\"} baz"
it "Escaping backslash itself when it makes sense" $ do
[qn| foo\nbar |] `shouldBe` "foo\nbar"
[qn| foo\\nbar |] `shouldBe` "foo\\nbar"
[qn| foo\tbar |] `shouldBe` "foo\tbar"
[qn| foo\\tbar |] `shouldBe` "foo\\tbar"
[qn| foo\ bar |] `shouldBe` "foo\tbar"
[qn| foo\\ bar |] `shouldBe` "foo\\\tbar"
[qn| foo\ bar |] `shouldBe` "foo bar"
[qn| foo\\ bar |] `shouldBe` "foo\\ bar"
[qn| foo\
bar |] `shouldBe` "foobar"
[qn| foo\\
bar |] `shouldBe` "foo\\bar"