167 lines
4.4 KiB
Python
167 lines
4.4 KiB
Python
# This package aids testing the 'write_file' rule.
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#
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# The package contains 4 write_file rules:
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# - 'write_empty_text' and 'write_empty_bin' write an empty text and an empty
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# executable file respectively
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# - 'write_nonempty_text' and 'write_nonempty_bin' write a non-empty text and
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# a non-empty executable file (a shell script) respectively
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#
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# The 'bin_empty' and 'bin_nonempty' rules are sh_binary rules. They use
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# the 'write_empty_bin' and 'write_nonempty_bin' rules respectively. The
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# sh_binary rule requires its source to be executable, so building these two
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# rules successfully means that 'write_file' managed to make its output
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# executable.
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#
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# The 'run_executables' genrule runs the 'bin_empty' and 'bin_nonempty'
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# binaries, partly to ensure they can be run, and partly so we can observe their
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# output and assert the contents in the 'write_file_tests' test.
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#
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# The 'file_deps' filegroup depends on 'write_empty_text'. The filegroup rule
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# uses the DefaultInfo.files field from its dependencies. When we data-depend on
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# the filegroup from 'write_file_tests', we transitively data-depend on the
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# DefaultInfo.files of the 'write_empty_text' rule.
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#
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# The 'write_file_tests' test is the actual integration test. It data-depends
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# on:
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# - the 'run_executables' rule, to get the outputs of 'bin_empty' and
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# 'bin_nonempty'
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# - the 'file_deps' rule, and by nature of using a filegroup, we get the files
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# from the DefaultInfo.files of the 'write_file' rule, and thereby assert that
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# that field contains the output file of the rule
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# - the 'write_nonempty_text' rule, and thereby on the DefaultInfo.runfiles
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# field of it, so we assert that that field contains the output file of the
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# rule
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load("//rules:diff_test.bzl", "diff_test")
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load("//rules:write_file.bzl", "write_file")
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licenses(["notice"])
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package(default_testonly = 1)
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sh_test(
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name = "write_file_tests",
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srcs = ["write_file_tests.sh"],
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data = [
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":run_executables",
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# Use DefaultInfo.files from 'write_empty_text' (via 'file_deps').
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":file_deps",
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# Use DefaultInfo.runfiles from 'write_nonempty_text'.
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":write_nonempty_text",
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"//tests:unittest.bash",
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],
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deps = ["@bazel_tools//tools/bash/runfiles"],
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)
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filegroup(
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name = "file_deps",
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# Use DefaultInfo.files from 'write_empty_text'.
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srcs = [":write_empty_text"],
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)
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# If 'run_executables' is built, then 'bin_nonempty' and 'bin_empty' are
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# executable, asserting that write_file makes the output executable.
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genrule(
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name = "run_executables",
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outs = [
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"empty-bin-out.txt",
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"nonempty-bin-out.txt",
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],
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cmd = ("$(location :bin_empty) > $(location empty-bin-out.txt) && " +
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"$(location :bin_nonempty) > $(location nonempty-bin-out.txt)"),
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output_to_bindir = 1,
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tools = [
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":bin_empty",
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":bin_nonempty",
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],
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)
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# If 'bin_empty' is built, then 'write_empty_bin' made its output executable.
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sh_binary(
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name = "bin_empty",
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srcs = [":write_empty_bin"],
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)
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# If 'bin_nonempty' is built, then 'write_nonempty_bin' made its output
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# executable.
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sh_binary(
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name = "bin_nonempty",
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srcs = [":write_nonempty_bin"],
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)
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write_file(
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name = "write_empty_text",
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out = "out/empty.txt",
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)
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write_file(
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name = "write_nonempty_text",
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out = "out/nonempty.txt",
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content = [
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"aaa",
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"bbb",
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],
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)
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write_file(
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name = "write_empty_bin",
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out = "out/empty.sh",
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is_executable = True,
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)
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write_file(
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name = "write_nonempty_bin",
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out = "out/nonempty.sh",
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content = [
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"#!/bin/bash",
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"echo potato",
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],
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is_executable = True,
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)
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write_file(
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name = "newline_unix_actual",
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out = "out/newline_unix_actual.txt",
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content = [
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"ab",
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"cd",
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"ef",
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],
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newline = "unix",
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)
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write_file(
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name = "newline_unix_exp",
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out = "out/newline_unix_exp.txt",
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content = ["ab\ncd\nef"],
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)
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diff_test(
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name = "unix_line_ending_test",
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file1 = ":newline_unix_actual",
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file2 = ":newline_unix_exp",
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)
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write_file(
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name = "newline_win_actual",
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out = "out/newline_win_actual.txt",
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content = [
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"ab",
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"cd",
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"ef",
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],
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newline = "windows",
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)
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write_file(
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name = "newline_win_exp",
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out = "out/newline_win_exp.txt",
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content = ["ab\r\ncd\r\nef"],
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)
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diff_test(
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name = "win_line_ending_test",
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file1 = ":newline_win_actual",
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file2 = ":newline_win_exp",
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)
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