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Add Upper, Lower, Trim methods to strings package.

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APPROVED=rsc
DELTA=110  (110 added, 0 deleted, 0 changed)
OCL=29766
CL=29951
This commit is contained in:
Steve Newman 2009-06-05 13:09:03 -07:00
parent 6609d2f88d
commit 031bf2c88b
2 changed files with 110 additions and 0 deletions
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52
src/lib/strings/strings_test.go
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@ -79,3 +79,55 @@ func TestSplit(t *testing.T) {
}
}
// Test case for any function which accepts and returns a single string.
type StringTest struct {
in, out string;
}
// Execute f on each test case. funcName should be the name of f; it's used
// in failure reports.
func runStringTests(t *testing.T, f func(string) string, funcName string, testCases []StringTest) {
for i, tc := range testCases {
actual := f(tc.in);
if (actual != tc.out) {
t.Errorf("%s(%q) = %q; want %q", funcName, tc.in, actual, tc.out);
}
}
}
var upperASCIITests = []StringTest {
StringTest{"", ""},
StringTest{"abc", "ABC"},
StringTest{"AbC123", "ABC123"},
StringTest{"azAZ09_", "AZAZ09_"}
}
var lowerASCIITests = []StringTest {
StringTest{"", ""},
StringTest{"abc", "abc"},
StringTest{"AbC123", "abc123"},
StringTest{"azAZ09_", "azaz09_"}
}
var trimSpaceASCIITests = []StringTest {
StringTest{"", ""},
StringTest{"abc", "abc"},
StringTest{" ", ""},
StringTest{" \t\r\n \t\t\r\r\n\n ", ""},
StringTest{" \t\r\n x\t\t\r\r\n\n ", "x"},
StringTest{" \t\r\n x\t\t\r\r\ny\n ", "x\t\t\r\r\ny"},
StringTest{"1 \t\r\n2", "1 \t\r\n2"},
}
func TestUpperASCII(t *testing.T) {
runStringTests(t, UpperASCII, "UpperASCII", upperASCIITests);
}
func TestLowerASCII(t *testing.T) {
runStringTests(t, LowerASCII, "LowerASCII", lowerASCIITests);
}
func TestTrimSpaceASCII(t *testing.T) {
runStringTests(t, TrimSpaceASCII, "TrimSpaceASCII", trimSpaceASCIITests);
}