bazel-lib/lib/tests/jq/BUILD.bazel

load("//lib/tests/jq:diff_test.bzl", "diff_test")
load("//lib:jq.bzl", "jq")
load("//lib:testing.bzl", "assert_contains")

exports_files([
    "a_pretty.json",
    "a.json",
    "b.json",
])

# Identity filter produces identical json
jq(
    name = "case_dot_filter",
    srcs = ["a.json"],
    filter = ".",
)

diff_test(
    name = "case_dot_filter_test",
    file1 = "a_pretty.json",
    file2 = ":case_dot_filter",
)

# Merge filter with slurp merges two jsons
jq(
    name = "case_merge_filter",
    srcs = [
        "a.json",
        "b.json",
    ],
    args = ["--slurp"],
    filter = ".[0] * .[1]",
)

diff_test(
    name = "case_merge_filter_test",
    file1 = "a_b_merged.json",
    file2 = ":case_merge_filter",
)

# Use predeclared output
jq(
    name = "case_predeclared_output",
    srcs = ["a.json"],
    out = "foo.json",
    filter = ".",
)

diff_test(
    name = "case_predeclared_output_test",
    file1 = "a_pretty.json",
    file2 = "foo.json",
)

# No sources produces null (equivalent to --null-input)
jq(
    name = "case_no_sources",
    srcs = [],
    filter = ".",
)

diff_test(
    name = "case_no_sources_test",
    file1 = ":case_no_sources",
    file2 = "null.json",
)

# Sources with --null-input flag produces null
jq(
    name = "case_null_input_flag",
    srcs = ["a.json"],
    args = ["--null-input"],
    filter = ".",
)

diff_test(
    name = "case_null_input_flag_test",
    file1 = ":case_null_input_flag",
    file2 = "null.json",
)

# Load filter from file
jq(
    name = "case_filter_file",
    srcs = [
        "a.json",
        "b.json",
    ],
    args = ["--slurp"],
    filter_file = "merge_filter.txt",
)

diff_test(
    name = "case_filter_file_test",
    file1 = "a_b_merged.json",
    file2 = ":case_filter_file",
)

# Filter that uses a stamp variable
[
    jq(
        name = ("" if stamp else "un") + "stamped",
        srcs = ["a.json"],
        filter = "|".join([
            # Don't directly reference $STAMP as it's only set when stamping
            "$ARGS.named.STAMP as $stamp",
            # Provide a default using the "alternative operator"
            ".foo = ($stamp.BUILD_EMBED_LABEL // \"<unstamped>\")",
            ".value = ($stamp.BUILD_TIMESTAMP // 1 | tonumber)",
        ]),
        stamp = stamp,
    )
    for stamp in [
        0,
        1,
    ]
]

assert_contains(
    name = "check_stamped",
    actual = "stamped.json",
    # v1.2.3 comes from the --embed_label flag in .bazelrc
    expected = """foo": "v1.2.3""",
)

assert_contains(
    name = "check_unstamped",
    actual = "unstamped.json",
    expected = """foo": "<unstamped>""",
)

# Call jq within a genrule
genrule(
    name = "case_genrule",
    srcs = ["a.json"],
    outs = ["genrule_output.json"],
    cmd = "$(JQ_BIN) '.' $(location a.json) > $@",
    toolchains = ["@jq_toolchains//:resolved_toolchain"],
)

diff_test(
    name = "case_genrule_test",
    file1 = "genrule_output.json",
    file2 = "a_pretty.json",
)

# Raw input (--raw-input / -R)
jq(
    name = "case_raw_input",
    srcs = ["raw.txt"],
    args = [
        "--raw-input",
        "--slurp",
    ],
    filter = "split(\"\\n\")",
)

diff_test(
    name = "case_raw_input_test",
    file1 = ":case_raw_input",
    file2 = "raw_expected.json",
)

# Similar to copy_to_bin, this will create a file a.json in the output folder.
# That's the same path as an input file, but that's okay as long as the jq
# rule doesn't pre-declare that output.
jq(
    name = "a",
    srcs = ["a.json"],
    filter = """ .foo = "baz" """,
)