a953d2b628
The `graph_git_behavior()` helper asserts that a number of common Git
operations (such as `git log --oneline`, `git log --topo-order`, etc.)
produce identical output regardless of whether or not a commit-graph is
in use.
This helper takes as its second argument the location (relative to the
`$TRASH_DIRECTORY`) of the Git repostiory under test. In order to run
each of its commands within that repository, it first changes into that
directory, without the use of a sub-shell.
This pollutes future tests which expect to be run in the top-level
`$TRASH_DIRECTORY` as usual. We could wrap `graph_git_behavior()` in a
sub-shell, like:
graph_git_behavior() {
# ...
(
cd "$TRASH_DIRECTORY/$DIR" &&
graph_git_two_modesl
)
}
, but since we're invoking git directly, we can pass along a "-C $DIR"
when "$DIR" is non-empty.
Note, however, that until the remaining callers are cleaned up to avoid
changing working directories outside of a sub-shell, that we need to
ensure that we are operating in the top-level $TRASH_DIRECTORY. The
inner-subshell will go away in a future commit once it is no longer
necessary.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
78 lines
1.7 KiB
Bash
Executable File
78 lines
1.7 KiB
Bash
Executable File
#!/bin/sh
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# Helper functions for testing commit-graphs.
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# Initialize OID cache with oid_version
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test_oid_cache <<-EOF
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oid_version sha1:1
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oid_version sha256:2
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EOF
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graph_git_two_modes() {
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git -c core.commitGraph=true $1 >output &&
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git -c core.commitGraph=false $1 >expect &&
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test_cmp expect output
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}
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# graph_git_behavior <name> <directory> <branch> <compare>
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#
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# Ensures that a handful of traversal operations produce the same
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# results with and without the commit-graph in use.
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#
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# NOTE: it is a bug to call this function with <directory> containing
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# any characters in $IFS.
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graph_git_behavior() {
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MSG=$1
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DIR=$2
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BRANCH=$3
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COMPARE=$4
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test_expect_success "check normal git operations: $MSG" '
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(
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cd "$TRASH_DIRECTORY" &&
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graph_git_two_modes "${DIR:+-C $DIR} log --oneline $BRANCH" &&
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graph_git_two_modes "${DIR:+-C $DIR} log --topo-order $BRANCH" &&
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graph_git_two_modes "${DIR:+-C $DIR} log --graph $COMPARE..$BRANCH" &&
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graph_git_two_modes "${DIR:+-C $DIR} branch -vv" &&
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graph_git_two_modes "${DIR:+-C $DIR} merge-base -a $BRANCH $COMPARE"
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)
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'
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}
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graph_read_expect() {
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OPTIONAL=""
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NUM_CHUNKS=3
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DIR="."
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if test "$1" = -C
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then
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shift
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DIR="$1"
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shift
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fi
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if test -n "$2"
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then
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OPTIONAL=" $2"
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NUM_CHUNKS=$((3 + $(echo "$2" | wc -w)))
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fi
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GENERATION_VERSION=2
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if test -n "$3"
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then
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GENERATION_VERSION=$3
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fi
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OPTIONS=
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if test $GENERATION_VERSION -gt 1
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then
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OPTIONS=" read_generation_data"
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fi
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cat >"$DIR/expect" <<-EOF
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header: 43475048 1 $(test_oid oid_version) $NUM_CHUNKS 0
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num_commits: $1
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chunks: oid_fanout oid_lookup commit_metadata$OPTIONAL
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options:$OPTIONS
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EOF
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(
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cd "$DIR" &&
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test-tool read-graph >output &&
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test_cmp expect output
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)
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}
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