t1300: document current behavior of setting options

This documents current behavior of the config machinery, when changing
the value of some settings. This patch just serves to provide a baseline
for the follow up that will fix some issues with the current behavior.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/t/t1300-config.sh b/t/t1300-config.sh
index e43982a9c1f192c6e6f6bb708130b980169bbba4..c15c19bf78d441b2a01b54f1bf93f307a466960c 100755 (executable)
--- a/t/t1300-config.sh
+++ b/t/t1300-config.sh
@@ -1188,6 +1188,92 @@ test_expect_success 'last one wins: three level vars' '
        test_cmp expect actual
 '
 
+test_expect_success 'old-fashioned settings are case insensitive' '
+       test_when_finished "rm -f testConfig testConfig_expect testConfig_actual" &&
+
+       cat >testConfig_actual <<-EOF &&
+               [V.A]
+               r = value1
+       EOF
+       q_to_tab >testConfig_expect <<-EOF &&
+               [V.A]
+               Qr = value2
+       EOF
+       git config -f testConfig_actual "v.a.r" value2 &&
+       test_cmp testConfig_expect testConfig_actual &&
+
+       cat >testConfig_actual <<-EOF &&
+               [V.A]
+               r = value1
+       EOF
+       q_to_tab >testConfig_expect <<-EOF &&
+               [V.A]
+               QR = value2
+       EOF
+       git config -f testConfig_actual "V.a.R" value2 &&
+       test_cmp testConfig_expect testConfig_actual &&
+
+       cat >testConfig_actual <<-EOF &&
+               [V.A]
+               r = value1
+       EOF
+       q_to_tab >testConfig_expect <<-EOF &&
+               [V.A]
+               r = value1
+               Qr = value2
+       EOF
+       git config -f testConfig_actual "V.A.r" value2 &&
+       test_cmp testConfig_expect testConfig_actual &&
+
+       cat >testConfig_actual <<-EOF &&
+               [V.A]
+               r = value1
+       EOF
+       q_to_tab >testConfig_expect <<-EOF &&
+               [V.A]
+               r = value1
+               Qr = value2
+       EOF
+       git config -f testConfig_actual "v.A.r" value2 &&
+       test_cmp testConfig_expect testConfig_actual
+'
+
+test_expect_success 'setting different case sensitive subsections ' '
+       test_when_finished "rm -f testConfig testConfig_expect testConfig_actual" &&
+
+       cat >testConfig_actual <<-EOF &&
+               [V "A"]
+               R = v1
+               [K "E"]
+               Y = v1
+               [a "b"]
+               c = v1
+               [d "e"]
+               f = v1
+       EOF
+       q_to_tab >testConfig_expect <<-EOF &&
+               [V "A"]
+               Qr = v2
+               [K "E"]
+               Qy = v2
+               [a "b"]
+               Qc = v2
+               [d "e"]
+               f = v1
+               Qf = v2
+       EOF
+       # exact match
+       git config -f testConfig_actual a.b.c v2 &&
+       # match section and subsection, key is cased differently.
+       git config -f testConfig_actual K.E.y v2 &&
+       # section and key are matched case insensitive, but subsection needs
+       # to match; When writing out new values only the key is adjusted
+       git config -f testConfig_actual v.A.r v2 &&
+       # subsection is not matched:
+       git config -f testConfig_actual d.E.f v2 &&
+       test_cmp testConfig_expect testConfig_actual
+'
+
 for VAR in a .a a. a.0b a."b c". a."b c".0d
 do
        test_expect_success "git -c $VAR=VAL rejects invalid '$VAR'" '