test-lib: allow negation of prerequisites

diff --git a/t/t4052-stat-output.sh b/t/t4052-stat-output.sh
index 328aa8f39865fb90d4b54991f158affa9cf2e1dc..b68afefa3ce2bf8ad810cee2d6ab108d4f1219ba 100755 (executable)
--- a/t/t4052-stat-output.sh
+++ b/t/t4052-stat-output.sh
@@ -22,7 +22,7 @@ test_expect_success 'preparation' '
 while read cmd args
 do
        cat >expect <<-'EOF'
-        ...aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa |    1 +
+        ...aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa | 1 +
        EOF
        test_expect_success "$cmd: small change with long name gives more space to the name" '
                git $cmd $args >output &&
@@ -31,7 +31,7 @@ do
        '
 
        cat >expect <<-'EOF'
-        ...aaaaaaaaaaaaaaaaaaaaaaaaaa |    1 +
+        ...aaaaaaaaaaaaaaaaaaaaaaaaaaaaa | 1 +
        EOF
        test_expect_success "$cmd --stat=width: a long name is given more room when the bar is short" '
                git $cmd $args --stat=40 >output &&
@@ -46,7 +46,7 @@ do
        '
 
        cat >expect <<-'EOF'
-        ...aaaaaaaaaaaaaaaaaaaaaaaaaaa |    1 +
+        ...aaaaaaaaaaaaaaaaaaaaaaaaaaa | 1 +
        EOF
        test_expect_success "$cmd --stat=...,name-width with long name" '
                git $cmd $args --stat=60,30 >output &&
@@ -82,11 +82,15 @@ test_expect_success 'preparation for big change tests' '
 cat >expect80 <<'EOF'
  abcd | 1000 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 EOF
-
+cat >expect80-graph <<'EOF'
+|  abcd | 1000 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+EOF
 cat >expect200 <<'EOF'
  abcd | 1000 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 EOF
-
+cat >expect200-graph <<'EOF'
+|  abcd | 1000 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+EOF
 while read verb expect cmd args
 do
        test_expect_success "$cmd $verb COLUMNS (big change)" '
@@ -94,6 +98,14 @@ do
                grep " | " output >actual &&
                test_cmp "$expect" actual
        '
+
+       test "$cmd" != diff || continue
+
+       test_expect_success "$cmd --graph $verb COLUMNS (big change)" '
+               COLUMNS=200 git $cmd $args --graph >output
+               grep " | " output >actual &&
+               test_cmp "$expect-graph" actual
+       '
 done <<\EOF
 ignores expect80 format-patch -1 --stdout
 respects expect200 diff HEAD^ HEAD --stat
@@ -104,7 +116,9 @@ EOF
 cat >expect40 <<'EOF'
  abcd | 1000 ++++++++++++++++++++++++++
 EOF
-
+cat >expect40-graph <<'EOF'
+|  abcd | 1000 ++++++++++++++++++++++++
+EOF
 while read verb expect cmd args
 do
        test_expect_success "$cmd $verb not enough COLUMNS (big change)" '
@@ -113,11 +127,41 @@ do
                test_cmp "$expect" actual
        '
 
+       test "$cmd" != diff || continue
+
+       test_expect_success "$cmd --graph $verb not enough COLUMNS (big change)" '
+               COLUMNS=40 git $cmd $args --graph >output
+               grep " | " output >actual &&
+               test_cmp "$expect-graph" actual
+       '
+done <<\EOF
+ignores expect80 format-patch -1 --stdout
+respects expect40 diff HEAD^ HEAD --stat
+respects expect40 show --stat
+respects expect40 log -1 --stat
+EOF
+
+cat >expect40 <<'EOF'
+ abcd | 1000 ++++++++++++++++++++++++++
+EOF
+cat >expect40-graph <<'EOF'
+|  abcd | 1000 ++++++++++++++++++++++++++
+EOF
+while read verb expect cmd args
+do
        test_expect_success "$cmd $verb statGraphWidth config" '
                git -c diff.statGraphWidth=26 $cmd $args >output
                grep " | " output >actual &&
                test_cmp "$expect" actual
        '
+
+       test "$cmd" != diff || continue
+
+       test_expect_success "$cmd --graph $verb statGraphWidth config" '
+               git -c diff.statGraphWidth=26 $cmd $args --graph >output
+               grep " | " output >actual &&
+               test_cmp "$expect-graph" actual
+       '
 done <<\EOF
 ignores expect80 format-patch -1 --stdout
 respects expect40 diff HEAD^ HEAD --stat
@@ -129,6 +173,9 @@ EOF
 cat >expect <<'EOF'
  abcd | 1000 ++++++++++++++++++++++++++
 EOF
+cat >expect-graph <<'EOF'
+|  abcd | 1000 ++++++++++++++++++++++++++
+EOF
 while read cmd args
 do
        test_expect_success "$cmd --stat=width with big change" '
@@ -143,11 +190,25 @@ do
                test_cmp expect actual
        '
 
-       test_expect_success "$cmd --stat-graph--width with big change" '
+       test_expect_success "$cmd --stat-graph-width with big change" '
                git $cmd $args --stat-graph-width=26 >output
                grep " | " output >actual &&
                test_cmp expect actual
        '
+
+       test "$cmd" != diff || continue
+
+       test_expect_success "$cmd --stat-width=width --graph with big change" '
+               git $cmd $args --stat-width=40 --graph >output
+               grep " | " output >actual &&
+               test_cmp expect-graph actual
+       '
+
+       test_expect_success "$cmd --stat-graph-width --graph with big change" '
+               git $cmd $args --stat-graph-width=26 --graph >output
+               grep " | " output >actual &&
+               test_cmp expect-graph actual
+       '
 done <<\EOF
 format-patch -1 --stdout
 diff HEAD^ HEAD --stat
@@ -164,6 +225,9 @@ test_expect_success 'preparation for long filename tests' '
 cat >expect <<'EOF'
  ...aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa | 1000 ++++++++++++
 EOF
+cat >expect-graph <<'EOF'
+|  ...aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa | 1000 ++++++++++++
+EOF
 while read cmd args
 do
        test_expect_success "$cmd --stat=width with big change is more balanced" '
@@ -171,6 +235,14 @@ do
                grep " | " output >actual &&
                test_cmp expect actual
        '
+
+       test "$cmd" != diff || continue
+
+       test_expect_success "$cmd --stat=width --graph with big change is balanced" '
+               git $cmd $args --stat-width=60 --graph >output &&
+               grep " | " output >actual &&
+               test_cmp expect-graph actual
+       '
 done <<\EOF
 format-patch -1 --stdout
 diff HEAD^ HEAD --stat
@@ -181,9 +253,15 @@ EOF
 cat >expect80 <<'EOF'
  ...aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa | 1000 ++++++++++++++++++++
 EOF
+cat >expect80-graph <<'EOF'
+|  ...aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa | 1000 ++++++++++++++++++++
+EOF
 cat >expect200 <<'EOF'
  aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa | 1000 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 EOF
+cat >expect200-graph <<'EOF'
+|  aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa | 1000 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+EOF
 while read verb expect cmd args
 do
        test_expect_success "$cmd $verb COLUMNS (long filename)" '
@@ -191,6 +269,14 @@ do
                grep " | " output >actual &&
                test_cmp "$expect" actual
        '
+
+       test "$cmd" != diff || continue
+
+       test_expect_success "$cmd --graph $verb COLUMNS (long filename)" '
+               COLUMNS=200 git $cmd $args --graph >output
+               grep " | " output >actual &&
+               test_cmp "$expect-graph" actual
+       '
 done <<\EOF
 ignores expect80 format-patch -1 --stdout
 respects expect200 diff HEAD^ HEAD --stat
@@ -198,6 +284,36 @@ respects expect200 show --stat
 respects expect200 log -1 --stat
 EOF
 
+cat >expect1 <<'EOF'
+ ...aaaaaaa | 1000 ++++++
+EOF
+cat >expect1-graph <<'EOF'
+|  ...aaaaaaa | 1000 ++++++
+EOF
+while read verb expect cmd args
+do
+       test_expect_success COLUMNS_CAN_BE_1 \
+               "$cmd $verb prefix greater than COLUMNS (big change)" '
+               COLUMNS=1 git $cmd $args >output
+               grep " | " output >actual &&
+               test_cmp "$expect" actual
+       '
+
+       test "$cmd" != diff || continue
+
+       test_expect_success COLUMNS_CAN_BE_1 \
+               "$cmd --graph $verb prefix greater than COLUMNS (big change)" '
+               COLUMNS=1 git $cmd $args --graph >output
+               grep " | " output >actual &&
+               test_cmp "$expect-graph" actual
+       '
+done <<\EOF
+ignores expect80 format-patch -1 --stdout
+respects expect1 diff HEAD^ HEAD --stat
+respects expect1 show --stat
+respects expect1 log -1 --stat
+EOF
+
 cat >expect <<'EOF'
  abcd | 1000 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 EOF