在 docker 容器中运行 dotnet test

Question

我想在 docker 容器中运行 dotnet test 命令，但我无法弄清楚该命令的放置位置。该项目是一个 .NET Core 2.1 测试项目。这样做的原因是我想运行端到端集成测试，这需要我的所有容器都在运行。

Docker 文件：

FROM microsoft/dotnet:2.1-runtime AS base
WORKDIR /app

FROM microsoft/dotnet:2.1-sdk AS build
WORKDIR /src
COPY *.sln ./
COPY Sombra.IntegrationTests/Sombra.IntegrationTests.csproj Sombra.IntegrationTests/
COPY . .
WORKDIR /src/Sombra.IntegrationTests
RUN dotnet build -c Release -o /app

FROM build AS publish
RUN dotnet publish -c Release -o /app

FROM base AS final
WORKDIR /app
COPY --from=publish /app .
ENTRYPOINT ["dotnet", "test", "Sombra.IntegrationTests.csproj"]

docker-compose.yml

version: '3'

services:
  sombra.integrationtests:
    image: sombra.integrationtests
    build:
      context: .
      dockerfile: Sombra.IntegrationTests/Dockerfile
    depends_on:
      - rabbitmq

Answer 1

您正在使用 runtime 映像来调用 sdk 命令测试。您的 final 来自 base 而 base 来自 runtime。

我在构建容器时成功地将单元测试用作中间步骤，但从未使用 docker-compose 进行集成测试。主要区别在于我使用了RUN 命令而不是entrypoint/cmd，因此在构建容器时测试已经在执行。主要优点是测试失败时没有 final 图像。但话又说回来，这是纯粹的单元测试，没有集成测试。虽然我可以想象这也会起作用。

这是我的完整示例：

FROM microsoft/dotnet:2.0-sdk AS build-env
WORKDIR /app

# copy csproj and restore as distinct layers
COPY test.sln ./test.sln
COPY program/program.csproj ./program/program.csproj
COPY program.tests/program.tests.csproj ./program.tests/program.tests.csproj
RUN dotnet restore

# copy everything else and build
COPY . ./
RUN dotnet test program.tests -c Release
RUN dotnet publish program -c Release -o /app/out

# build runtime image
FROM microsoft/dotnet:2.0-runtime
WORKDIR /app
COPY --from=build-env /app/out ./
ENTRYPOINT ["dotnet", "program.dll"]

Answer 2

您没有向我们提供错误日志或其他内容，但我猜您正在尝试在未安装 dotnet sdk 的图像上运行 dotnet test Sombra.IntegrationTests.csproj（仅安装 dotnet runtime） .

dotnet runtime 是 dotnet core 的一个版本，不能执行命令（如 test 和 build）。它只能执行 dll（因此得名“runtime”）。

Answer 3

关于这个有一个很好的博客。 A guide to setting up a .NET Core project using Docker, with integrated unit and component tests 在此博客中查找与您正在尝试做的等效的组件测试。 下面的 dockerfile 对我有用。这可以构建为 docker 镜像，然后可以用于运行集成测试。

FROM mcr.microsoft.com/dotnet/sdk:5.0 AS build
WORKDIR /src
COPY *.sln .
COPY ["Somthing.Business/Somthing.Business.csproj", "Somthing.Business/"]
COPY ["tests/Somthing.Business.IntegrationTests/Somthing.Business.IntegrationTests.csproj", "tests/Somthing.Business.IntegrationTests/"]
COPY "Directory.*.props" . # this is centralized package manager for a project

RUN dotnet restore "tests/Somthing.Business.IntegrationTests/Somthing.Business.IntegrationTests.csproj"
COPY . .
RUN dotnet build "tests/Somthing.Business.IntegrationTests/Somthing.Business.IntegrationTests.csproj"

FROM build AS testrunner
WORKDIR /src/tests/Somthing.Business.IntegrationTests

CMD ["dotnet", "test", "--no-restore"]