396 lines
16 KiB
Clojure
396 lines
16 KiB
Clojure
(ns clj-jtwig.functions-test
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(:require [clojure.test :refer :all]
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[clj-jtwig.core :refer :all]
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[clj-jtwig.functions :refer :all]))
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; TODO: is there a better way to test that something is an instance of some object generated by reify?
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(defn valid-function-handler? [x]
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(and (not (nil? x))
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(-> x
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(class)
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(.getName)
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(.startsWith "clj_jtwig.functions$make_function_handler"))))
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(deftest template-functions
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(testing "Adding custom template functions"
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(do
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(reset-functions!)
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(is (valid-function-handler?
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(deftwigfn "add" [a b]
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(+ a b))))
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(is (true? (function-exists? "add")))
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(is (false? (function-exists? "foobar")))
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(is (valid-function-handler?
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(deftwigfn "add" [a b]
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(+ a b))))
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(is (= (render "{{add(1, 2)}}" nil)
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"3")
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"calling a custom function")
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(is (= (render "{{add(a, b)}}" {:a 1 :b 2})
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"3")
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"calling a custom function, passing in variables from the model-map as arguments")
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(is (= (render "{{x|add(1)}}" {:x 1})
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"2")
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"calling a custom function using the 'filter' syntax")
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(reset-functions!)))
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(testing "Custom template function aliases"
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(do
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(reset-functions!)
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(is (valid-function-handler?
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(defaliasedtwigfn "add" [a b]
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["plus" "myAddFn"]
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(+ a b))))
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(is (true? (function-exists? "add")))
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(is (true? (function-exists? "plus")))
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(is (true? (function-exists? "myAddFn")))
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(is (= (render "{{add(1, 2)}}" nil)
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"3")
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"calling a custom function by name")
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(is (= (render "{{plus(1, 2)}}" nil)
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"3")
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"calling a custom function by alias")
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(is (= (render "{{myAddFn(1, 2)}}" nil)
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"3")
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"calling a custom function by another alias")
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(reset-functions!)))
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(testing "Fixed and variable number of template function arguments"
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(do
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(reset-functions!)
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(is (valid-function-handler?
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(deftwigfn "add2" [a b]
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(+ a b))))
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(is (true? (function-exists? "add2")))
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(is (valid-function-handler?
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(deftwigfn "addAll" [& numbers]
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(apply + numbers))))
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(is (true? (function-exists? "addAll")))
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(is (= (render "{{add2(1, 2)}}" nil)
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"3")
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"fixed number of arguments (correct amount)")
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(is (thrown-with-msg?
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Exception
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#"clojure\.lang\.ArityException: Wrong number of args"
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(render "{{add2(1)}}" nil)))
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(is (= (render "{{addAll(1, 2, 3, 4, 5)}}" nil)
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"15")
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"variable number of arguments (non-zero)")
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(is (= (render "{{addAll}}" nil)
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"null")
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"variable number of arguments (zero)")
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(reset-functions!)))
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(testing "Passing different data structures to template functions"
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(do
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(reset-functions!)
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(is (valid-function-handler?
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(deftwigfn "identity" [x]
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x)))
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(is (true? (function-exists? "identity")))
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(is (valid-function-handler?
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(deftwigfn "typename" [x]
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(.getName (type x)))))
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(is (true? (function-exists? "typename")))
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; verify that the clojure function recognizes the correct types when the variable is passed via the model-map
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(is (= (render "{{typename(x)}}" {:x 42})
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"java.lang.Long")
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"integer typename via model-map")
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(is (= (render "{{typename(x)}}" {:x 3.14})
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"java.lang.Double")
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"float typename via model-map")
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(is (= (render "{{typename(x)}}" {:x "foobar"})
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"java.lang.String")
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"string typename via model-map")
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(is (= (render "{{typename(x)}}" {:x \a})
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"java.lang.Character")
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"char typename via model-map")
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(is (= (render "{{typename(x)}}" {:x true})
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"java.lang.Boolean")
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"boolean typename via model-map")
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(is (= (render "{{typename(x)}}" {:x '(1 2 3 4 5)})
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"clojure.lang.LazySeq")
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"list typename via model-map")
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(is (= (render "{{typename(x)}}" {:x [1 2 3 4 5]})
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"clojure.lang.LazySeq")
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"vector typename via model-map")
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(is (= (render "{{typename(x)}}" {:x {:a 1 :b "foo" :c nil}})
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"clojure.lang.PersistentArrayMap")
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"map typename via model-map")
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(is (= (render "{{typename(x)}}" {:x #{1 2 3 4 5}})
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"clojure.lang.LazySeq")
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"set typename via model-map")
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; verify that the clojure function recognizes the correct types when the variable is passed via a constant
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; value embedded in the template
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(is (= (render "{{typename(42)}}" nil)
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"java.lang.Integer")
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"integer typename via constant value embedded in the template")
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(is (= (render "{{typename(3.14)}}" nil)
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"java.lang.Double")
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"float typename via constant value embedded in the template")
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(is (= (render "{{typename('foobar')}}" nil)
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"java.lang.String")
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"string typename via constant value embedded in the template")
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(is (= (render "{{typename('a')}}" nil)
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"java.lang.Character")
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"char typename via constant value embedded in the template")
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(is (= (render "{{typename(true)}}" nil)
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"java.lang.Boolean")
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"boolean typename via constant value embedded in the template")
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(is (= (render "{{typename([1, 2, 3, 4, 5])}}" nil)
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"clojure.lang.LazySeq")
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"list typename via constant value embedded in the template")
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(is (= (render "{{typename(1..5)}}" nil)
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"clojure.lang.LazySeq")
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"vector typename via constant value embedded in the template")
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(is (= (render "{{typename({a: 1, b: 'foo', c: null})}}" nil)
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"clojure.lang.PersistentArrayMap")
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"map typename via constant value embedded in the template")
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; simple passing / returning... not doing anything exciting with the arguments
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; using a constant value embedded inside the template
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(is (= (render "{{identity(x)}}" {:x 42})
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"42")
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"integer via model-map")
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(is (= (render "{{identity(x)}}" {:x 3.14})
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"3.14")
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"float via model-map")
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(is (= (render "{{identity(x)}}" {:x "foobar"})
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"foobar")
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"string via model-map")
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(is (= (render "{{identity(x)}}" {:x \a})
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"a")
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"char via model-map")
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(is (= (render "{{identity(x)}}" {:x true})
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"true")
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"boolean via model-map")
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(is (= (render "{{identity(x)}}" {:x '(1 2 3 4 5)})
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"[1, 2, 3, 4, 5]")
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"list via model-map")
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(is (= (render "{{identity(x)}}" {:x [1 2 3 4 5]})
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"[1, 2, 3, 4, 5]")
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"vector via model-map")
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; TODO: order of iteration through a map is undefined, the string being tested may not always be the same (wrt. order)
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(is (= (render "{{identity(x)}}" {:x {:a 1 :b "foo" :c nil}})
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"{b=foo, c=null, a=1}")
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"map via model-map")
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(is (= (render "{{identity(x)}}" {:x #{1 2 3 4 5}})
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"[1, 2, 3, 4, 5]")
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"set via model-map")
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; simple passing / returning... not doing anything exciting with the arguments
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; using a constant value embedded inside the template
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(is (= (render "{{identity(42)}}" nil)
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"42")
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"integer via constant value embedded in the template")
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(is (= (render "{{identity(3.14)}}" nil)
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"3.14")
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"float via constant value embedded in the template")
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(is (= (render "{{identity('foobar')}}" nil)
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"foobar")
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"string via constant value embedded in the template")
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(is (= (render "{{identity('a')}}" nil)
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"a")
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"char via constant value embedded in the template")
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(is (= (render "{{identity(true)}}" nil)
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"true")
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"boolean via constant value embedded in the template")
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(is (= (render "{{identity([1, 2, 3, 4, 5])}}" nil)
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"[1, 2, 3, 4, 5]")
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"enumerated list via constant value embedded in the template")
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(is (= (render "{{identity(1..5)}}" nil)
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"[1, 2, 3, 4, 5]")
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"list by comprehension via constant value embedded in the template")
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; TODO: order of iteration through a map is undefined, the string being tested may not always be the same (wrt. order)
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(is (= (render "{{identity({a: 1, b: 'foo', c: null})}}" nil)
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"{b=foo, c=null, a=1}")
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"map via constant value embedded in the template")
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; iterating over passed sequence/collection type arguments passed to a custom function from a variable
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; inside the model-map and being returned
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(is (= (render "{% for i in identity(x) %}{{i}} {% endfor %}" {:x '(1 2 3 4 5)})
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"1 2 3 4 5 ")
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"list (iterating over a model-map var passed to a function and returned from it)")
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(is (= (render "{% for i in identity(x) %}{{i}} {% endfor %}" {:x [1 2 3 4 5]})
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"1 2 3 4 5 ")
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"vector (iterating over a model-map var passed to a function and returned from it)")
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; TODO: order of iteration through a map is undefined, the string being tested may not always be the same (wrt. order)
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(is (= (render "{% for k, v in identity(x) %}{{k}}: {{v}} {% endfor %}" {:x {:a 1 :b "foo" :c nil}})
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"b: foo c: null a: 1 ")
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"map (iterating over a model-map var passed to a function and returned from it)")
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(is (= (render "{% for i in identity(x) %}{{i}} {% endfor %}" {:x #{1 2 3 4 5}})
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"1 2 3 4 5 ")
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"set (iterating over a model-map var passed to a function and returned from it)")
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; iterating over passed sequence/collection type arguments passed to a custom function from a constant
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; value embedded in the template and being returned
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(is (= (render "{% for i in identity([1, 2, 3, 4, 5]) %}{{i}} {% endfor %}" nil)
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"1 2 3 4 5 ")
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"enumerated list (iterating over a model-map var passed to a function and returned from it)")
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(is (= (render "{% for i in identity(1..5) %}{{i}} {% endfor %}" nil)
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"1 2 3 4 5 ")
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"list by comprehension (iterating over a model-map var passed to a function and returned from it)")
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; TODO: order of iteration through a map is undefined, the string being tested may not always be the same (wrt. order)
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(is (= (render "{% for k, v in identity({a: 1, b: 'foo', c: null}) %}{{k}}: {{v}} {% endfor %}" nil)
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"b: foo c: null a: 1 ")
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"map (iterating over a model-map var passed to a function and returned from it)")
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(reset-functions!))))
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(deftest standard-functions
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(testing "Standard functions were added properly"
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(is (true? (function-exists? "blank_if_null")))
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(is (true? (function-exists? "butlast")))
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(is (true? (function-exists? "dump")))
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(is (true? (function-exists? "dump_table")))
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(is (true? (function-exists? "nth")))
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(is (true? (function-exists? "max")))
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(is (true? (function-exists? "min")))
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(is (true? (function-exists? "random")))
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(is (true? (function-exists? "range")))
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(is (true? (function-exists? "rest")))
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(is (true? (function-exists? "second")))
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(is (true? (function-exists? "sort")))
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(is (true? (function-exists? "sort_descending")))
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(is (true? (function-exists? "sort_by")))
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(is (true? (function-exists? "sort_descending_by"))))
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(testing "blank_if_null"
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(is (= (render "{{ a|blank_if_null }}" nil)
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""))
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(is (= (render "{{ a|blank_if_null }}" {:a nil})
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""))
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(is (= (render "{{ a|blank_if_null }}" {:a "foo"})
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"foo"))
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(is (= (render "{{ a|nonull }}" nil)
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"")))
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(testing "butlast"
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(is (= (render "{{ [1, 2, 3, 4, 5]|butlast }}" nil)
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"[1, 2, 3, 4]")))
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(testing "center"
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(is (= (render "{{ center('bat', 5) }}" nil)
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" bat "))
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(is (= (render "{{ center('bat', 3) }}" nil)
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"bat"))
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(is (= (render "{{ center('bat', 5, 'x') }}" nil)
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"xbatx")))
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(testing "dump"
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(is (= (render "{{ a|dump }}" {:a [{:foo "bar"} [1, 2, 3] "hello"]})
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"({\"foo\" \"bar\"} (1 2 3) \"hello\")\n")))
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(testing "dump_table"
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(is (= (render "{{ t|dump_table }}", {:t [{:a 1 :b 2 :c 3} {:b 5 :a 7 :c "dog"}]})
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"\n| b | c | a |\n|---+-----+---|\n| 2 | 3 | 1 |\n| 5 | dog | 7 |\n")))
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(testing "max"
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(is (= (render "{{ [2, 1, 5, 3, 4]|max }}" nil)
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"5"))
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(is (= (render "{{ max(2, 1, 5, 3, 4) }}" nil)
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"5")))
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(testing "min"
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(is (= (render "{{ [2, 1, 5, 3, 4]|min }}" nil)
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"1"))
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(is (= (render "{{ min(2, 1, 5, 3, 4) }}" nil)
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"1")))
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(testing "normalize_space"
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(is (= (render "{{ normalize_space(' hello world ') }}" nil)
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"hello world")))
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(testing "nth"
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(is (= (render "{{ [1, 2, 3, 4, 5]|nth(2) }}" nil)
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"3"))
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(is (thrown-with-msg?
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Exception
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#"java.lang.IndexOutOfBoundsException"
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(render "{{ [1, 2, 3, 4, 5]|nth(6) }}" nil)))
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(is (= (render "{{ [1, 2, 3, 4, 5]|nth(6, \"not found\") }}" nil)
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"not found")))
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(testing "pad_left"
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(is (= (render "{{ pad_left('bat', 5) }}" nil)
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" bat"))
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(is (= (render "{{ pad_left('bat', 3) }}" nil)
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"bat"))
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(is (= (render "{{ pad_left('bat', 5, 'x') }}" nil)
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"xxbat")))
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(testing "pad_right"
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(is (= (render "{{ pad_right('bat', 5) }}" nil)
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"bat "))
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(is (= (render "{{ pad_right('bat', 3) }}" nil)
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"bat"))
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(is (= (render "{{ pad_right('bat', 5, 'x') }}" nil)
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"batxx")))
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(testing "random"
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(is (some #{(render "{{ ['apple', 'orange', 'citrus']|random }}" nil)}
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["apple" "orange" "citrus"]))
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(is (some #{(render "{{ \"ABC\"|random }}" nil)}
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["A" "B" "C"])))
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(testing "range"
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(is (= (render "{{ range(1, 5) }}" nil)
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"[1, 2, 3, 4]"))
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(is (= (render "{{ range(1, 5, 2) }}" nil)
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"[1, 3]")))
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(testing "repeat"
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(is (= (render "{{ repeat('x', 10) }}" nil)
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"xxxxxxxxxx"))
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(is (= (render "{{ repeat('x', 0) }}" nil)
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"")))
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(testing "rest"
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(is (= (render "{{ [1, 2, 3, 4, 5]|rest }}" nil)
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"[2, 3, 4, 5]")))
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(testing "second"
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(is (= (render "{{ [1, 2, 3, 4, 5]|second }}" nil)
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"2")))
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(testing "sort"
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(is (= (render "{{ [2, 1, 5, 3, 4]|sort }}" nil)
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"[1, 2, 3, 4, 5]")))
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(testing "sort_descending"
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(is (= (render "{{ [2, 1, 5, 3, 4]|sort_descending }}" nil)
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"[5, 4, 3, 2, 1]")))
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(testing "sort_by"
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(is (= (render "{{ [{a: 2}, {a: 1}, {a: 5}, {a: 3}, {a: 4}]|sort_by(\"a\") }}" nil)
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"[{a=1}, {a=2}, {a=3}, {a=4}, {a=5}]")))
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(testing "sort_descending_by"
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(is (= (render "{{ [{a: 2}, {a: 1}, {a: 5}, {a: 3}, {a: 4}]|sort_descending_by(\"a\") }}" nil)
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"[{a=5}, {a=4}, {a=3}, {a=2}, {a=1}]")))
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(testing "wrap"
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(is (= (render "{{ wrap(\"Here is one line of text that is going to be wrapped after 20 columns.\", 20) }}" nil)
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"Here is one line of\ntext that is going\nto be wrapped after\n20 columns."))
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(is (= (render "{{ wrap(\"Here is one line of text that is going to be wrapped after 20 columns.\", 20, false, \"<br />\") }}" nil)
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"Here is one line of<br />text that is going<br />to be wrapped after<br />20 columns."))
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(is (= (render "{{ wrap(\"Click here to jump to the commons website - http://commons.apache.org\", 20, false) }}" nil)
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"Click here to jump\nto the commons\nwebsite -\nhttp://commons.apache.org"))
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(is (= (render "{{ wrap(\"Click here to jump to the commons website - http://commons.apache.org\", 20, true) }}" nil)
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"Click here to jump\nto the commons\nwebsite -\nhttp://commons.apach\ne.org"))))
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