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1 (ns clojure.contrib.test-properties
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2 (:refer-clojure :exclude (spit))
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3 (:use clojure.test clojure.contrib.properties
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4 [clojure.contrib.io :only (spit)])
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5 (:import (java.util Properties)
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6 (java.io File)))
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7
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8 (deftest test-get-system-property
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9 (testing "works the same with keywords, symbols, and strings"
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10 (is (= (get-system-property "java.home") (get-system-property 'java.home)))
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11 (is (= (get-system-property "java.home") (get-system-property :java.home))))
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12 (testing "treats second arg as default"
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13 (is (= "default" (get-system-property "testing.test-system-property" "default"))))
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14 (testing "returns nil for missing properties"
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15 (is (nil? (get-system-property "testing.test-system-property")))))
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16
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17 (deftest test-set-system-properties
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18 (testing "set and then unset a property using keywords"
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19 (let [propname :clojure.contrib.java.test-set-system-properties]
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20 (is (nil? (get-system-property propname)))
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21 (set-system-properties {propname :foo})
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22 (is (= "foo") (get-system-property propname))
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23 (set-system-properties {propname nil})
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24 (is (nil? (get-system-property propname))))))
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25
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26 (deftest test-with-system-properties
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27 (let [propname :clojure.contrib.java.test-with-system-properties]
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28 (testing "sets a property only for the duration of a block"
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29 (is (= "foo"
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30 (with-system-properties {propname "foo"}
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31 (get-system-property propname))))
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32 (is (nil? (get-system-property propname)))))
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33 (testing "leaves other properties alone"
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34 ; TODO: write this test better, using a properties -> map function
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35 (let [propname :clojure.contrib.java.test-with-system-properties
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36 propcount (count (System/getProperties))]
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37 (with-system-properties {propname "foo"}
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38 (is (= (inc propcount) (count (System/getProperties)))))
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39 (is (= propcount (count (System/getProperties)))))))
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40
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41 (deftest test-as-properties
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42 (let [expected (doto (Properties.)
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43 (.setProperty "a" "b")
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44 (.setProperty "c" "d"))]
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45 (testing "with a map"
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46 (is (= expected
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47 (as-properties {:a "b" :c "d"}))))
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48 (testing "with a sequence of pairs"
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49 (is (= expected
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50 (as-properties [[:a :b] [:c :d]]))))))
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51
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52 (deftest test-read-properties
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53 (let [f (File/createTempFile "test" "properties")]
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54 (spit f "a=b\nc=d")
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55 (is (= {"a" "b" "c" "d"}
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56 (read-properties f)))))
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57
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58 (deftest test-write-properties
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59 (let [f (File/createTempFile "test" "properties")]
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60 (write-properties [['a 'b] ['c 'd]] f)
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61 (is (= {"a" "b" "c" "d"}
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62 (read-properties f)))))
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63
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