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-rwxr-xr-xt/t4214-log-graph-octopus.sh102
1 files changed, 102 insertions, 0 deletions
diff --git a/t/t4214-log-graph-octopus.sh b/t/t4214-log-graph-octopus.sh
new file mode 100755
index 0000000000..dab96c89aa
--- /dev/null
+++ b/t/t4214-log-graph-octopus.sh
@@ -0,0 +1,102 @@
+#!/bin/sh
+
+test_description='git log --graph of skewed left octopus merge.'
+
+. ./test-lib.sh
+
+test_expect_success 'set up merge history' '
+ cat >expect.uncolored <<-\EOF &&
+ * left
+ | *---. octopus-merge
+ | |\ \ \
+ |/ / / /
+ | | | * 4
+ | | * | 3
+ | | |/
+ | * | 2
+ | |/
+ * | 1
+ |/
+ * initial
+ EOF
+ cat >expect.colors <<-\EOF &&
+ * left
+ <RED>|<RESET> *<BLUE>-<RESET><BLUE>-<RESET><MAGENTA>-<RESET><MAGENTA>.<RESET> octopus-merge
+ <RED>|<RESET> <RED>|<RESET><YELLOW>\<RESET> <BLUE>\<RESET> <MAGENTA>\<RESET>
+ <RED>|<RESET><RED>/<RESET> <YELLOW>/<RESET> <BLUE>/<RESET> <MAGENTA>/<RESET>
+ <RED>|<RESET> <YELLOW>|<RESET> <BLUE>|<RESET> * 4
+ <RED>|<RESET> <YELLOW>|<RESET> * <MAGENTA>|<RESET> 3
+ <RED>|<RESET> <YELLOW>|<RESET> <MAGENTA>|<RESET><MAGENTA>/<RESET>
+ <RED>|<RESET> * <MAGENTA>|<RESET> 2
+ <RED>|<RESET> <MAGENTA>|<RESET><MAGENTA>/<RESET>
+ * <MAGENTA>|<RESET> 1
+ <MAGENTA>|<RESET><MAGENTA>/<RESET>
+ * initial
+ EOF
+ test_commit initial &&
+ for i in 1 2 3 4 ; do
+ git checkout master -b $i || return $?
+ # Make tag name different from branch name, to avoid
+ # ambiguity error when calling checkout.
+ test_commit $i $i $i tag$i || return $?
+ done &&
+ git checkout 1 -b merge &&
+ test_tick &&
+ git merge -m octopus-merge 1 2 3 4 &&
+ git checkout 1 -b L &&
+ test_commit left
+'
+
+test_expect_success 'log --graph with tricky octopus merge with colors' '
+ test_config log.graphColors red,green,yellow,blue,magenta,cyan &&
+ git log --color=always --graph --date-order --pretty=tformat:%s --all >actual.colors.raw &&
+ test_decode_color <actual.colors.raw | sed "s/ *\$//" >actual.colors &&
+ test_cmp expect.colors actual.colors
+'
+
+test_expect_success 'log --graph with tricky octopus merge, no color' '
+ git log --color=never --graph --date-order --pretty=tformat:%s --all >actual.raw &&
+ sed "s/ *\$//" actual.raw >actual &&
+ test_cmp expect.uncolored actual
+'
+
+# Repeat the previous two tests with "normal" octopus merge (i.e.,
+# without the first parent skewing to the "left" branch column).
+
+test_expect_success 'log --graph with normal octopus merge, no color' '
+ cat >expect.uncolored <<-\EOF &&
+ *---. octopus-merge
+ |\ \ \
+ | | | * 4
+ | | * | 3
+ | | |/
+ | * | 2
+ | |/
+ * | 1
+ |/
+ * initial
+ EOF
+ git log --color=never --graph --date-order --pretty=tformat:%s merge >actual.raw &&
+ sed "s/ *\$//" actual.raw >actual &&
+ test_cmp expect.uncolored actual
+'
+
+test_expect_success 'log --graph with normal octopus merge with colors' '
+ cat >expect.colors <<-\EOF &&
+ *<YELLOW>-<RESET><YELLOW>-<RESET><BLUE>-<RESET><BLUE>.<RESET> octopus-merge
+ <RED>|<RESET><GREEN>\<RESET> <YELLOW>\<RESET> <BLUE>\<RESET>
+ <RED>|<RESET> <GREEN>|<RESET> <YELLOW>|<RESET> * 4
+ <RED>|<RESET> <GREEN>|<RESET> * <BLUE>|<RESET> 3
+ <RED>|<RESET> <GREEN>|<RESET> <BLUE>|<RESET><BLUE>/<RESET>
+ <RED>|<RESET> * <BLUE>|<RESET> 2
+ <RED>|<RESET> <BLUE>|<RESET><BLUE>/<RESET>
+ * <BLUE>|<RESET> 1
+ <BLUE>|<RESET><BLUE>/<RESET>
+ * initial
+ EOF
+ test_config log.graphColors red,green,yellow,blue,magenta,cyan &&
+ git log --color=always --graph --date-order --pretty=tformat:%s merge >actual.colors.raw &&
+ test_decode_color <actual.colors.raw | sed "s/ *\$//" >actual.colors &&
+ test_cmp expect.colors actual.colors
+'
+test_done