Add tests for fileops

tests/unittests/testfileops.nim

@@ -0,0 +1,211 @@
+import nimgen/fileops, common, regex, os
+
+import unittest
+
+let testFileContent = """
+this is text
+this is text
+replace me
+prepend me
+end
+"""
+
+let prependMiddleExpected = """
+this is text
+this is text
+replace me
+prepended data
+prepend me
+end
+"""
+
+let prependEndExpected = """
+this is text
+this is text
+replace me
+prepend me
+data
+end
+"""
+
+let appendEndExpected = """
+this is text
+this is text
+replace me
+prepend me
+end
+data
+"""
+
+let appendMiddleExpected = """
+this is data
+ text
+this is text
+replace me
+prepend me
+end
+"""
+
+let freplaceDefaultExpected = """
+
+
+replace me
+prepend me
+end
+"""
+
+let freplaceWithExpected = """
+this is text
+this is text
+foobar
+prepend me
+end
+"""
+
+let freplaceRegexExpected = """
+foobar
+foobar
+replace me
+prepend me
+end
+"""
+
+let commentExpected = """
+this is text
+this is text
+//replace me
+//prepend me
+//end
+"""
+
+let commentMiddleExpected = """
+this //is text
+//this is text
+replace me
+prepend me
+end
+"""
+
+
+let dataDir = currentSourcePath().splitPath().head / "data"
+
+let testfilename = dataDir / "testing.txt"
+
+
+suite "test file ops":
+  if not dataDir.dirExists():
+    dataDir.createDir()
+
+  setup:
+    if testfilename.existsFile():
+      removeFile(testfilename)
+    writeFile(testfilename, testFileContent)
+
+  ################### Prepend #######################
+
+  test "prepend at beginning of file":
+    prepend(testfilename, "data\n")
+    let expected = "data\n" & testFileContent
+    testfilename.checkFile(expected)
+
+  test "prepend at middle of file":
+    prepend(testfilename, "prepended data\n", "prepend me")
+    testfilename.checkFile(prependMiddleExpected)
+
+  test "prepend at end of file":
+    prepend(testfilename, "data\n", "end\n")
+    testfilename.checkFile(prependEndExpected)
+
+  ################### Pipe #########################
+
+  test "pipe command into file":
+    when defined(windows):
+      pipe(testfilename, "(ECHO foo)>>$file")
+      testfilename.checkFile("foo")
+    else:
+      pipe(testfilename, "cat $file | grep 'this is text'")
+      testfilename.checkFile("this is text\nthis is text")
+
+  ################# Append #########################
+
+  test "append file end":
+    append(testfilename, "data\n")
+    testfilename.checkFile(appendEndExpected)
+
+  test "append file middle":
+    append(testfilename, " data\n", "this is")
+    testfilename.checkFile(appendMiddleExpected)
+
+  ################# FReplace #########################
+
+  test "freplace default empty":
+    freplace(testfilename, "this is text")
+    testfilename.checkFile(freplaceDefaultExpected)
+
+  test "freplace with content":
+    freplace(testfilename, "replace me", "foobar")
+    testfilename.checkFile(freplaceWithExpected)
+
+  test "freplace regex":
+    freplace(testfilename, re"this .*", "foobar")
+    testfilename.checkFile(freplaceRegexExpected)
+
+  ####################### Comment ######################
+
+  test "comment":
+    comment(testfilename, "replace me", "3")
+    testfilename.checkFile(commentExpected)
+
+  test "comment over length":
+    comment(testfilename, "replace me", "10")
+    testfilename.checkFile(commentExpected)
+
+  test "comment negative":
+    comment(testfilename, "replace me", "-3")
+    testfilename.checkFile(testFileContent)
+
+  test "comment zero":
+    comment(testfilename, "replace me", "0")
+    testfilename.checkFile(testFileContent)
+
+  test "comment middle":
+    comment(testfilename, "is text", "2")
+    testfilename.checkFile(commentMiddleExpected)
+
+  ############### Static inline removal ################
+
+  test "replace static inline with front braces at end of line":
+
+    let
+      file = dataDir / "teststaticfrontbraces.h"
+      resFile = dataDir / "teststaticexpectedfrontbraces.h"
+
+      test = readFile(file)
+      expected = readFile(resFile)
+
+    writeFile(testfilename, test)
+
+    removeStatic(testfilename)
+    testfilename.checkFile(expected)
+
+    reAddStatic(testfilename)
+    testfilename.checkFile(test)
+
+  test "replace static inline with newline before brace":
+
+    let
+      file = dataDir / "teststaticnewlinebraces.h"
+      resFile = dataDir / "teststaticexpectednewlinebraces.h"
+      reAddedFile = dataDir / "teststaticnewlinebracesreadded.h"
+
+      test = readFile(file)
+      expected = readFile(resFile)
+      reAdded = readFile(reAddedFile)
+
+    writeFile(testfilename, test)
+
+    removeStatic(testfilename)
+    testfilename.checkFile(expected)
+
+    reAddStatic(testfilename)
+    testfilename.checkFile(reAdded)