Add tests for READFILE.

Author: python-processing-unit

tests/cases/failing/readfile-missing-file.pre

@@ -0,0 +1,5 @@
+IMPORT(path)
+
+STR: missing = path.TEMPFILE("prefix-readfile-missing.txt")
+TRY{ DELETEFILE(missing) } CATCH { }
+READFILE(missing)

tests/cases/failing/readfile-unsupported-coding.pre

@@ -0,0 +1,5 @@
+IMPORT(path)
+
+STR: p = JOIN(path.script_dir, "/plain.txt")
+
+READFILE(p, coding = "UTF-7")

tests/cases/passing/plain.txt

@@ -0,0 +1 @@
+Prefix

tests/cases/passing/readfile-ansi.pre

@@ -0,0 +1,5 @@
+IMPORT(path)
+
+STR: p = JOIN(path.script_dir, "/plain.txt")
+
+ASSERT(EQ(READFILE(p, coding = "ANSI"), "Prefix"))

tests/cases/passing/readfile-binary-hex.pre

@@ -0,0 +1,6 @@
+IMPORT(path)
+
+STR: p = JOIN(path.script_dir, "/plain.txt")
+
+ASSERT(EQ(READFILE(p, coding = "binary"), "010100000111001001100101011001100110100101111000"))
+ASSERT(EQ(READFILE(p, coding = "hex"), "507265666978"))

tests/cases/passing/readfile-plain.pre

@@ -0,0 +1,6 @@
+IMPORT(path)
+
+STR: p = JOIN(path.script_dir, "/plain.txt")
+
+ASSERT(EQ(READFILE(p), "Prefix"))
+ASSERT(EQ(READFILE(p, coding = "uTf-8"), "Prefix"))